VERFAHREN UND VORRICHTUNG ZUM FALTEN VON PAPIER

Automatic alignment of media for proper print side orientation

APPARATUS FOR REMOVING CURL FROM SHEETS OF PAPER

IMAGE FORMING APPARATUS

Dispositif de suppression d'ondulation des feuilles de copieurs et d'imprimantes

L'invention concerne un dispositif de suppression d'ondulation. Elle se rapporte a un dispositif dans lequel un organe fixe de guidage 15 a une forme bombee dans la concavite de laquelle sont disposes des rouleaux 19, la distance separant les rouleaux de l'organe fixe etant inferieure a l'epaisseur d'une feuille de papier. Les feuilles de papier sont transmises dans cet espace et leur ondulation y est supprimee. Application aux copieurs et imprimantes electropho-tographiques.

Electrostatic recording device for copier, facsimile machine and printer

APPAREIL, NOTAMMENT COPIEUR, CAPABLE DE FORMER DES IMAGES SUPERPOSEES OU SUR LES DEUX FACES D'UN SUPPORT TEL QU'UNE FEUILLE DE PAPIER

L'objet de l'invention est un système mécanique et électronique de transport et de recyclage de feuilles de papier P pour la formation, au choix, d'images (reproductions) superposées ou à recouvrement sur une même face ou d'images (reproductions) sur les deux faces des feuilles P, en combinaison avec un système de détection et d'élimination de bourrages. Ils peuvent être intégrés, notamment, dans un appareil pour la copie électrostatique par report, comprenant une unité de reproduction 2 avec un tambour photosensible 10 et un mécanisme de transport à galets, rouleaux, et guides, ainsi qu'une unité de réalimentation 4 avec un plateau d'empilage intermédiaire 66 et un mécanisme à rouleaux 70, 74, 78 et à aiguillages 76, 82 pour ramener les feuilles P au tambour 10 avec l'une ou l'autre face dirigée vers le haut en vue de la formation d'une deuxième image sur chaque feuille.

Cleaning device and image forming apparatus provided with the cleaning device

A cleaning device includes a cleaning unit, a movement mechanism, and a positioning portion. The cleaning unit includes a cleaning part that has a contact surface extending along an axial direction of a conveyance roller and cleans the conveyance roller, and a cleaning housing that supports the cleaning part. The movement mechanism moves the cleaning unit between a cleaning position and a mounting and removing position. The movement mechanism allows the cleaning part to be brought into contact with the conveyance roller at the cleaning position, allows the cleaning part to be disposed below the conveyance roller in a separated manner at the mounting and removing position and allows the cleaning unit to be mounted on or removed from the apparatus body. The positioning portion restricts a relative position between the cleaning part and the conveyance roller by being brought into contact with the cleaning unit.

IMAGE FORMING APPARATUS

An intermediate transfer unit includes a stand member that is integral with an intermediate-transfer-unit body of the intermediate transfer unit. The stand member stretches below the intermediate-transfer-unit body from a trailing edge to a leading edge of the intermediate-transfer-unit in an attachment direction of the intermediate transfer unit.

Image-forming machine

IMAGE FORMING DEVICE

PROBLEM TO BE SOLVED: To provide an easy-to-control image forming device capable of corresponding to a POD (print on demand) while suppressing increase of the cost. SOLUTION: An upstream side sheet feeding unit 400A for feeding a sheet to an image forming part 300 is selectively disposed upstream of an image forming device body 10a, and a downstream side sheet feeding unit 400 for feeding a sheet having an image formed by the image forming part 300 to a sheet handling part 500 disposed on the downstream side is selectively disposed downstream of the image forming device body 10a. The same upstream and downstream side sheet feeding units 400 and 400A are employed, thereby simplifying the control and suppressing the cost increase. COPYRIGHT: (C)2003,JPO ...

SYSTEM FOR REGISTERING PRINTING MACHINE AND BOOK BINDING MACHINE

PURPOSE: To facilitate a connection of a bookbinding finishing facility by providing a control means for indicating accurate or inaccurate storage in lateral, horizontal and vertical directions of first and second facility parts. CONSTITUTION: A bypass conveying mechanism 50 has plunger type actuators 92, 93, and switches 90, 91 at a right side end. A connecting system of this type simultaneously ensures an alignment of modules while allowing a contact of a minimum limit between the modules. A third party facility compresses the plungers as the third party facility approaches the conveying mechanism, and hence it needs a part disposed similarly at a left side end. The plungers are compressed to close the opened switch state or to open the closed switch state. The switch is wired to change its level according to a logic signal to be monitored if one of them is not compressed.

Ausrichtungsmodul für Aufzeichnungsträger

Kopiergerät zum Herstellen von Überlagerungs- und Duplexkopien

PAPER FOLDING APPARATUS AND METHOD

BOND PAPER PHOTOCOPYING MACHINE

HIGH SPEED DUPLICATOR WITH COPY SHEET PRE-LOADING RECEPTACLE

Image recording apparatus

IMAGE FORMING APPARATUS CAPABLE OF STABLY CONVEYING RECORDING MEDIUM

An image forming apparatus includes an image forming mechanism, a toner image carrier, a transfer unit, and a contact-separate mechanism. The image forming mechanism forms a toner image. The toner image carrier carries the toner image. The transfer unit includes a transferor, a pre-transfer guide, and a post-transfer guide. The transferor opposes the toner image carrier to form a transfer nip at which the toner image on the toner image carrier is transferred onto a recording medium. The pre-transfer guide and the post-transfer guide are respectively disposed on upstream and downstream sides from the transfer nip relative to a recording medium conveyance direction. The contact-separate mechanism moves the transfer unit including the transferor, the pre-transfer guide, and the post-transfer guide to contact and separate the transferor to and from the toner image carrier.

Feed apparatus capable of feeding image forming media by relatively small drive power

A feed apparatus for feeding paper to a copy machine is disclosed. Paper on a paper table is vertically moved by a lift mechanism. The lift mechanism is made up of a coupling mechanism, a transmitting mechanism, and a mounting mechanism. This mechanism transmits a drive force from a motor and a motor drive to the paper table, to vertically move the table. The table has an elastic member attached thereto. The elastic member has a predetermined elastic force to move the table upwardly. The table is lifted by cooperation of the lift mechanism and the elastic member. A controller applies a command to the motor to drive a transport mechanism. The driven transport mechanism picks up paper sheet by sheet and feeds it to the copy machine.

Printer with toner loader door

Toner loader door structure e.g. for laser printer The door structure has a receptacle positioned beneath the cover for receiving a toner supply and positioned adjacent the adjoining wall. A toner loader door encloses the receptacle and includes a first portion which mates with the cover's top surface and a second portion that abuts the adjoining wall. The two portions (24,25) meet at point of joinder (38) to form an L=shape. The second portion (25) of the toner loader door is pivotally mounted (50) to the adjoining wall and enables the door to pivot between an open position and a closed position. A sheet feed mechanism (18) is positioned adjacent the wall and feeds sheets through the inlet opening. The sheet feed mechanism is pivotally mounted to the printer by a spring biased pivot which forces the sheet feed mechanism against the toner loader door so as to maintain it in a closed position. The sheet feed mechanism is hand pivotable away from the wall to allow the cover to be pivoted ...

COPYING APPARATUS

PURPOSE: To prevent installation area from increasing by providing, in a frame a paper feed device for feeding recording papers placed in it in a piled state one by one to a route connected with the outlets of paper feeders. CONSTITUTION: The main body of a copying machine B has 2 paper feeders 16, 17 and a recording paper route 18 is provided between these feeders 16, 17 and a photosensitive drum 10. A recording paper (a) fed from either of the feeders 16, 17 or a paper feed device 38 is supplied to the drum 10 with a paper feed roller 19 situated on the route 18. A toner image formed on the drum 10 is transferred to the paper (a) supplied to the drum 10 during passing through a transfer electrode 13, this paper (a) is sent to a fixing device 20 with a belt conveyor 19, and after having fixed the toner image, the paper (a) is taken out of the machine with a unloading roller 21. COPYRIGHT: (C)1982,JPO&Japio ...

COPYING MEDIUM POSITIONING MODULE, AND ELECTROPHOTOGRAPHIC PRINTING MACHINE

PROBLEM TO BE SOLVED: To assemble plural functions of a device to properly position a copying medium in a paper sheet passage into a single module for enabling it to be easily removed from a printing machine at the time of a diagnostic test or the like. SOLUTION: A module 200 includes drive roller systems 202, 204 including plural rollers to carry a copying medium from a feed passage to a destination, and regulate a nip, a detection system to detect a position error of the copying medium before the nip, a positioning correcting device to properly position the copying medium to be carried to the destination, a generator 206 to move the drive rollers systems 202, 204, and a connector 212 to connect the generator 206 to an external power supply, where the drive rollers 202, 204 and the generator 206 are enclosed with a housing to be installed on/removed from an external device as single body. COPYRIGHT: (C)1999,JPO ...

Transporteinheit für Bilderzeugungsgerät.

Bildformungsvorrichtung und Tandembildformungsvorrichtung

Eine Bildformungsvorrichtung hat eine photoleitfähige Trommel oder Gurt, der ein Toner-Bild unterstützt, ein Übertragungsteil, welches das Toner-Bild auf ein Aufzeichnungsmedium überträgt, eine Transporteinrichtung, welche das Aufzeichnungsmedium zu zwischen dem Photoleiter und dem Übertragungsteil transportiert, einen Lader, der eine Fläche des Übertragungsteils auf die Anti-Polarität der elektrischen Ladung des Toner-Bilds auflädt, eine Drehantriebseinheit, welche das Übertragungsteil in die gleiche Richtung des Aufzeichnungsmediumstransports dreht, eine Kontaktier-/Entfernungseinheit, welche das Übertragungsteil mit dem Bildunterstützungsteil zum Drucken kontaktiert und das Übertragungsteil vom Bildunterstützungsteil entfernt, wenn nicht gedruckt wird, und eine Antriebskraft-Übertragungs-/Blockiereinheit, welche die Antriebskraft von der Drehantriebseinheit zum Übertragungsteil überträgt, bevor das Drucken gestartet wird und die Antriebskraft während des Druckens blockiert.

ELECTROSTATIC RECORDING APPARATUS

IMAGE FORMING APPARATUS

An image forming apparatus comprising rotatable cassettes rotated by cassette rotating means between a longitudinal feeding station from which paper is fed in a longitudinal direction thereof and a lateral feeding station from which paper is fed in a lateral direction thereof, wherein memory means stores a cassette rotation signal, when the cassette rotation signal is entered therein and cassette rotating means is controlled in accordance with the cassette rotation signal stored in the memory means when a cassette rotation permission signal for permitting the rotation of the rotatable cassette is generated, so that the rotatable cassette is set in a predetermined feeding station. The invention also provides an image forming apparatus capable of storing the feeding station of the rotatable cassette in the memory means and rotating the rotatable cassette to the feeding station stored in the memory means when the rotatable cassette is out of both longitudinal feeding station and lateral feeding ...

DEVICE OF SUPPRESSION Of UNDULATION OF the SHEETS OF COPIERS AND PRINTERS

APPARATUS, IN PARTICULAR COPIER, ABLE TO FORM IMAGES SUPERPOSEES OR ON the TWO FACES Of a SUPPORT SUCH AS a Sheet of paper

Copier or printer component position floating magnetic actuator

In a copier or printer a magnetic switch system is often used to indicate or signal the separation, mating, alignment or docking of components movable relative to one another, by the actuation or non-actuation of a magnetic switch on a first such component, such as a fixed frame member, by a magnet or a second such component, such as a manually movable tray, which magnet and magnetic switch are positioned such that as the components are moved together and docked the magnet actuates the magnetic switch. Here, the magnet is resiliently cantilever mounted to the second component to extend out towards the first component in the movement direction by a substantial preset distance (when undocked) sufficient to accommodate and compenaste for a substantial variation in the first and second components docking positions by actuation of the magnetic switch by the magnet anywhere within the range of the preset distance by flexing of the spring with further movement of the components towards one another ...

Image forming apparatus having front loading paper feeding member

An image froming apparatus includes a sheet holding section (2a-2d) including a plurality of sheet trays (2a-2d) arranged in a vertical direction where a sheet is placed; an image forming section (4), a conveying section (3, 203) for conveying a sheet sent from one sheet tray (2a-2d) of the sheet holding section to the image forming section (4), and a connecting member (240) for enabling the conveying section (3, 203) to be drawn out from the body (1) of the image forming apparatus conjointly with at least one sheet tray (2a-2d) of the sheet holding section. ...

CLEANING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

RECORDING PAPER GUIDE DEVICE OF COPYING MACHINE

PURPOSE: To carry correctly recording paper with respect to recording paper of any paper width size by constituting a titled device so that an edge part guide means provided on the upper stage of a separating means can be moved in the right and left directions with respect to the carrying direction of the recording paper. CONSTITUTION: An edge part guide means 31 for preventing recording paper from floating is provided on the side B opposite to the side A in which a separating and carrying means of recording paper is provided, at the upper side of an inlet of a fixing device 20, so that the edge part guide means 31 can be moved in the right and left directions with respect to the carrying direction of the recording paper, and can be moved to a prescribed position in accordance with a paper width size of the recording paper. The edge part guide means 31 is positioned at the upper side of the inlet when seeing it from the carrying-in direction of the recording paper, is a plate material having ...

IMAGE FORMING DEVICE

PURPOSE: To improve a destaticizing effect at the time of removing paper-jamming and to prevent the occurrence of an electric shock by destaticizing electrostatically charged transfer material at the time of pulling out a transfer material carrying means from an image forming device. CONSTITUTION: The image forming device is provided with a transfer material carrying means 1 for attracting the transfer material 9 on a transfer material carrier and carrying the material 9 by the use of an electrostatic force. At the time of removing the paper jamming in the device, the connection of the transfer material carrying means 1 and the image forming device main body is released and the transfer material carrying means 1 is pulled out from the image forming device main body, then, the transfer material 9 held by the means 1 is moved while facing a conductive grounding member 7 in a non-contact state. Thus, the electrostatic charge remaining on the transfer material 9 is removed from the conductive ...

Bilderzeugungsgerät und Verfahren zur wahlweisen Ankopplung eines Peripheriegeräts an das Bilderzeugungsgerät.

Bilderzeugungsgerät.

Zuführvorrichtung für eine Papierfalteinrichtung

Printing apparatus having manual sheet feeding and document reading capabilities

ELECTROSTATIC RECORDING APPARATUS

CUSTOMER INSTALLABLE BYPASS SHEET TRANSPORT FOR CONNECTING A PRINTER TO A FINISHER

A modular, portable, operator installable copy sheet bypass transport is sized to be placed entirely into an output bin of a first piece of equipment in order to facilitate copy sheet receiving hook-up of the first piece of equipment with a second piece of equipment. The bypass transport includes a baffled copy sheet path that directs copy sheets through the bypass transport into a receiving section of the second piece of equipment. An adjustment member is attached to the bypass transport and is used to lock the bypass transport into the bin of the first piece of equipment. Electrical connection is provided between the bypass transport and the first piece of equipment so that transport rolls in the copy sheet path of the bypass transport can drive copy sheets into the sheet receiving section of the second piece of equipment.

APPLICATION OF MICR MEDIA TO XEROGRAPHIC IMAGES

A low cost and efficient system for magnetic ink character recognition provides a magnetic image over a non-magnetic toned image which can be an on-line or off-line component of an imaging apparatus. Magnetic ink is applied to selected characters from a thin film that includes a magnetic media by utilizing a heater member to promote release of the magnetic ink to the previously toned characters.

Image recording apparatus with provision for blank binding space

Double-sided image forming device having a turnable guide guiding a rear end of a large-size sheet

A double-sided image forming device comprises a double-side operation unit. The double-side operation unit includes a sheet reversing unit including a switchback conveying path for reversing a front side and a back side of a sheet conveyed from an image forming unit, and a reconveying path for reconveying the sheet to the image forming unit so as to form an image on the back side. The switchback conveying path has a length smaller than a length of a conveyable maximum-size sheet. The double-side operation unit can slide from/toward a body of the double-sided image forming device in a direction perpendicular to a direction of conveying the sheet. A rear end guide is further provided in the switchback conveying path so as to guide a rear end of a large-size sheet.

Z-folder for a reproduction apparatus finisher

An improved Z-folder for use with a reproduction apparatus having a modular finisher apparatus for forming completely finished reproduction sets of a series of reproductions produced on sheets respectively by the reproduction apparatus. The modular finisher includes a mechanism for detachably accepting modular devices including a Z-folder. The improved Z-folder comprises a support frame mating with the finisher mechanism for detachably accepting modular devices to enable the frame to be received therein. An assembly is mounted on the frame for moving a reproduction sheet directed to the Z-folder along a prescribed path to effect Z-folding of such reproduction sheet. A device for collecting reproduction sheets prior to having a finishing operation carried out thereon is also associated with the frame. A sheet feed path is defined for delivering reproduction sheets directly to the collecting device, such path intersecting the prescribed path of the Z-folding assembly, whereby a compact arrangement ...

Copying apparatus

A copying apparatus capable of producing a copied image on both surfaces of a copying paper as required includes a copying paper receiving and delivering device capable of receiving a copying paper returned through a copying paper returning passage and delivering it to a copying paper conveying passage. The paper receiving and delivering device includes a copying paper receiving stand supporting member disposed within a housing of the apparatus and a copying paper receiving stand to be mounted detachably on the supporting member, and the paper returned through the paper returning passage is received on the paper receiving stand. Alternatively, the paper receiving and delivering member includes a copying paper receiving stand detachably mounted on the housing and at least partly projecting out of the housing, and the paper returned through the paper returning passage is received on the paper receiving stand. Furthermore, copying paper sheets can be loaded manually on the paper receiving ...

Paper sheet feeder

An image forming apparatus is provided with a paper sheet feeder for selective feeding from a group of paper sheets in either a first or second cassette. In the paper sheet feeder, first and second registration rollers are provided in front of the first and second cassettes respectively, and a common registration roller is provided in front of a photosensitive drum. When the first group of paper sheets is selected, a first paper sheet is supplied to the first registration roller from the first cassette so that the paper sheet is registered by the first registration roller. The registered paper sheet is supplied to the common registration roller so that the paper sheet is also registered by the common registration roller. When the second group of paper sheets is selected, the second paper sheet is supplied to the second registration roller from the second cassette so that the paper sheet is registered by the second registration roller. The registered paper sheet is supplied to the common ...

SHEET FEEDING APPARATUS WITH A PLURALITY OF EASILY LOADED CASSETTES

IMAGE RECORDING APPARATUS

An image recording apparatus includes a sheet transport path, a first unit, and a second unit. The sheet transport path guides a sheet from a sheet feeding section, through an image recording section, to a sheet output section. The sheet transport path includes a first path and a second path. The first unit is mounted detachably in a housing. The first unit is detached from the housing by being moved in a first direction toward the front of the housing. In the first unit, the first path is positioned. The second unit is mounted detachably in the first unit. The second unit is detached from the first unit by being moved in a second direction perpendicular to the first direction with the first unit detached from the housing. In the second unit, the second path is positioned.

Saddle stitcher apparatus for a modular finisher apparatus

A saddle stitcher apparatus (90) for forming completely finished reproduction sets of a series of reproductions produced on sheets, respectively by a reproduction apparatus (12), is one of a group of modular devices (30, 50, 70, 90, 150) of a modular finisher apparatus (10). The saddle stitcher apparatus (90) comprises a support frame (118) including means (100) for mating with means for detachably accepting the saddle stitcher with a housing (32) of the modular finisher apparatus (10). Means associated with the support frame (118) define a sheet feed path (P3) communicating with reproduction sheet receiving means (E). The saddle stitcher apparatus (90) comprises means (96) for stapling the registered sheets at the mid-line thereof, means (94) for folding a stapled set along the mid-line thereof, and an output hopper (98) for collecting folded stapled reproduction sets. ...

Image forming apparatus

Image-forming apparatus

媒体搬送装置及び画像形成装置

Bilderzeugungsgerät

SHEET FEEDING APPARATUS

... 1496965 Feeding sheets XEROX CORP 19 May 1975 [5 Sept 1974] 21332/75 Heading B8R The subject-matter is the same as that of Specification 1,496,734, but the claims are directed to means for flattening curled edges of the sheet.

SHEET FEEDING APPARATUS

SHEET FEEDING APPARATUS Sheet feeding apparatuses and reproducing machines employing such apparatuses including one or more of the following embodiments are provided. One embodiment provides a movable surface for registering the front edge of the stack on a stack support. In another embodiment a stack support drawer is movable between an extended position and an operative position. The feeding means travels to the extended position with the drawer. Means are provided for sensing both the presence of sheets on the drawer and the engagement of a drive for the feeding means. In another embodiment a guide means is provided for feeding sheets having curled edges wherein the guide means includes a means for flattening the edges of the sheets as they are fed along a sheet feed path.

SHEET FEEDING APPARATUS

SHEET SUPPLYING DEVICE

A sheet supplying device has at least one sheet stacking portion for stacking a plurality of sheets to be fed, a unit for drawing the sheets out of the sheet stacking portion to feed the drawn sheet to a predetermined path, and a unit for returning a sheet into the sheet stacking portion. This sheet is drawn by the drawing unit but stayed in a position that the leading edge thereof is out of the sheet stacking portion.

Appareil d'enregistrement d'images.

L'invention concerne un appareil d'enregistrement d'images pouvant être amené à fonctionner en mode de reliure. L'appareil (5000) d'enregistrement d'images comporte des moyens de copie (5003) qui copient une image d'un original en tenant compte d'informations provenant de moyens (5001) de désignation du nombre d'originaux et de moyens (5002) déterminant un espace blanc de reliure d'une image prédéterminée qui correspond au nombre d'originaux lorsque l'appareil (5000) d'enregistrement d'images est mis en ùoeuvre en mode de reliure. Domaine d'application: machines de copie, etc.

IMAGE FORMING APPARATUS

... 본 발명은 화상형성장치를 제공하기 위한 것으로, 본체에 슬라이딩 착탈 가능한 커버부재를 구비한 화상형성장치에 있어서, 본체로부터 커버부재의 구동요소로의 동력전달을 전자클러치를 통하여 구현함으로써 동력전달구조의 단순화 및 신뢰성을 향상시키게 된다.

MODULAR FINISHER FOR A REPRODUCTION APPARATUS

An improved modular finisher apparatus (10), for use with a reproduction apparatus (12) producing reproduction sets, for forming completely finished reproduction sets. The improved finisher apparatus comprises a receiver (24) for receiving sheets of reproduction sets from the reproduction apparatus. A first feed path (R) extends from the receiver to a sheet collector (34) where received sheets are directed. Collected sheets are stapled into finished reproduction sets. A second feed path extends from the sheet collector to a set collector (50) where finished reproduction sets are collected. The finisher also includes at least one of the following devices: a Z-folder (70), a saddle stitcher (90), and an insert tray (150). Sheet transport paths (P1a, P3, P4) are provided to any of the included devices.

Sheet supplying device

A sheet supplying device has at least one sheet stacking portion for stacking a plurality of sheets to be fed, a unit for drawing the sheets out of the sheet stacking portion to feed the drawn sheet to a predetermined path, and a unit for returning a sheet into the sheet stacking portion. This sheet is drawn by the drawing unit but stayed in a position that the leading edge thereof is out of the sheet stacking portion.

Pressing device and fixing device

A pressing device includes a cam member 120, a bearing 120a, a cam portion 120b, a cam engaging portion 120c of snap fit fashion. The bearing 102a is rotatably supported by a fixation frame 115. The cam portion 120b is provided on one side of the bearing 120a and contacts a pressing lever. The cam engaging portion 120c is provided on the other side of the bearing 120a and engages with a hole 123a formed on an outer surface of a cam shaft 123. The cam engaging portion 120c engages with the hole 123a at a position away from a maximum load portion of the cam portion 120b by not less than 90 degrees phase different.

Structure and structure detachably mountable to image forming apparatus

A structure includes a first frame including a slit portion; and a second frame including a plate portion configured to enter the slit portion. The slit portion includes an introducing portion, a first positioning portion, and a first tapered portion connecting the introducing portion and the first positioning portion. The plate portion includes a free end portion capable of entering the introducing portion, a second positioning portion determining a position of the plate portion with respect to a longitudinal direction of the slit portion, a third positioning portion determining a position of the plate portion with respect to an inserting direction into the slit portion, and a second tapered portion contactable to the first tapered portion and connecting the free end portion and the second positioning portion.

Image forming apparatus

An image forming apparatus which includes: an image forming apparatus main body provided with an image forming portion for forming an image on a sheet; an upstream-side sheet feed unit which is juxtaposed to the image forming apparatus main body and feeds a sheet contained therein to the image forming portion; a sheet treatment portion for treating a sheet fed thereto; and a downstream-side sheet feed unit which is juxtaposed between the image forming apparatus main body and the sheet treatment portion and feeds a sheet contained therein to the sheet treatment portion, in which each of the upstream-side sheet feed unit and the downstream-side sheet feed unit is selectively attachable to the image forming apparatus main body, and the upstream-side sheet feed unit and the downstream-side sheet feed unit have the same construction.

SHEET LOADING DEVICE

PURPOSE: To make a sheet loading system multi-functional and compact, by furnishing sheet refeeding devices against at least two of the sheet storing bin trays of the sheet sorting member, in the sheet loading system with a sheet sorter. CONSTITUTION: In the sheet loading system 60, is furnished a sheet sorting member 57 with several sheet storing bin trays 611W61n in which sheets can be sorted and stored. At the system 60, sheet refeeding devices 69 and 70 are arranged, adjusted against at least two of the bin trays 611W61n. Therefore, sheets are sorted and stored to each bin tray 611W61n, through the sorter 57 according to the specific patterns. Adding to this, sheets copied on one side in the copier 50, are discharged into a given bin tray, and refed through the refeeder 69W70, being turned over, to the other bin tray. After that, they can be refed to the copier 50 again to copy on the other side. Thus, the system is now multi-functional including multi-copying. COPYRIGHT: (C)1986,JPO ...

Bilderzeugungsgerät mit einer von vorn zu ladenden Papierfördervorrichtung

Transporteinheit für Bilderzeugungsgerät.

Structure and structure detachably mountable to image forming apparatus

The structure includes a rotatable member; a first frame (601, Fig.7) including a slit portion 613; and a second frame (403, Fig.4) including groove portion to rotatably hold the rotatable member and a plate portion 419 which enters the slit portion. The slit portion includes an introducing portion 613c connected by a tapered portion 613a to an engaging portion 613b. The plate portion includes a free end portion 419b connected by a tapered portion 419a to a second inserting portion 419c, and a stopper portion 419d. The engaging, second inserting, and stopper portions are configured to determine a position of the plate portion with respect to a direction of the slit portion. The engaging portion may have substantially the same thickness as the plate portion. The first and second frame may comprise a plurality of holes and engaging portions respectively. The structure may comprise part of a shutter unit within a copying machine, printer, facsimile machine or multi-functional device.

Electrostatic recording apparatus

In a laser printer or like electrostatic recording apparatus of the type developing an electrostatic latent image provided on a photoconductive drum by toner which is conveyed by a developing roller, various devices of the apparatus are separated into an upper and a lower unit which are openable away from each other, and the photoconductive drum assembly (including the photoconductive element and a developing assembly including the developing roller) are individually detachable from the lower body unit of the apparatus. Various measures are taken to enhance stable and safe operation, miniaturization, easy maintenance, operability, service life, and image quality.

CUSTOMER INSTALLABLE BYPASS SHEET TRANSPORT FOR CONNECTING A PRINTER TO A FINISHER

SHEET SUPPLYING DEVICE

Image forming apparatus in which units connected together occupy a relatively small area

A compact image forming apparatus which occupies a small floor area even though it has optional units connected to it. The apparatus includes an image forming device, a paper-reversing device attached to a side of the image forming device, a paper-feeding unit, a large-capacity paper-feeding unit, and a large-capacity storage unit. The image forming device and the paper-reversing device are mounted on the paper-feeding unit, which, in turn, is mounted on the large-capacity paper-feeding unit. The large-capacity paper-feeding unit is mounted on the large-capacity storage unit. The total bottom area of the image forming device and the paper-reversing section attached to the side of the image forming device is substantially equal to the top area of the paper-feeding unit, that of the large-capacity paper-feeding unit, and that of said large-capacity storage unit.

Image recording apparatus with provision for blank binding space

An image recording apparatus includes an input key for inputting a binding mode for binding a plurality of recording sheets; an image forming until for forming an image on the recording sheet, the image forming unit forming the image while providing a predetermined blank space when the binding mode is inputted from the input key; and a binding unit for binding a plurality of recording sheets ejected out from the image forming unit by adding a predetermined cover sheet when the binding mode is inputted from the input key.

Electrostatic copying apparatus and auxiliary unit capable of being detachably mounted thereon

The electrostatic copying apparatus (2) includes a paper conveying passage (52), a paper feed means (76) for feeding paper to the paper conveying passage (52) and a paper feed passage (96) having its downstream end connected to the paper conveying passage (52), and a copied image is formed on one surface of paper while it is conveyed through the paper conveying passage (52) after being introduced into the conveying passage (52) from the paper feed means (76) or the paper feed passage (96). The auxiliary unit (108) includes a paper moving passage (138) whose upstream end is to be selectively connected to the downstream end of the paper conveying passage (52) of the copying apparatus (2) and a paper stock means (140) whose upstream end is connected to the downstream end of the paper moving passage (138) and whose downstream end is connected to the upstream end of the paper feed passage (96) of the copying apparatus (2).

MANUAL PAPER FEEDING DEVICE IN COPYING MACHINE

PURPOSE: To set exactly and automatically a placing position of manual feeding copying paper by providing a carrying means for feeding the manual feeding copying paper into the same position as the regular time. CONSTITUTION: A manual feeding plate 21 is installed to an installing part 3 of a copying machine body 2 and plugs 33, 34 are connected. Manual feeding optional size single leaf copying paper 38 is placed on a placing face 21d, is fed a little by a finger, etc., a deflection is formed a little by pressing its tip against a contact part of a feed roll 23 and a driven roll 25, a sensor lever 22 is depressed by the tip edge part, and a sensor 22 is operated. By the sensor detection 22, a motor 28 is driven, and the paper 38 which is made to conform with the reference line is fed onto a feeding path face 21e by the rolls 23, 25. Subsequently, the manual feeding paper 38 is fed in so that a rotation of this motor 28 becomes almost the same as the tip position of copying paper in a cassette ...

PRINTING APPARATUS HAVING MANUAL SHEET FEEDING AND DOCUMENT READING CAPABILITIES

Structure and structure detachably mountable to image forming apparatus

APPARATUS, IN PARTICULAR COPIER, CAPABLE OF FORMING OVERLAPPING IMAGES OR BOTH SIDES OF A SUPPORT SUCH AS A SHEET OF PAPER

Image recording apparatus with provision for blank binding space

APPARATUS OF REFEEDING OUT OF PAPER FOR MACHINE OF FORMATION Of IMAGES

Electrostatic recording apparatus

A laser printer or like electrostatic recording apparatus of the type developing an electrostatic latent image provided on a photoconductive drum by toner which is conveyed by a developing roller. Various devices of the apparatus including the photoconductive drum and developing roller are separated into an upper and a lower unit which are openable away from each other. A photoconductive drum assembly including the photoconductive element and a developing assembly including the developing roller are individually detachable from a body of the apparatus. Various measures are taken to enhance stable and safe operation, miniaturization, easy maintenance, operability, service life, and image quality.

Image Forming Apparatus With Removable Waste Toner Container and Exposable Feeding Path

An image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container. 1. An image forming apparatus , comprising: a first side wall;', 'a second side wall spaced apart from the first wall in a first direction;', 'a front wall having an opening; and', 'a rear wall spaced apart from the front wall in a second direction,, 'a chassis comprisinga photosensitive drum;a developing roller for forming a developer image on the photosensitive drum;a cartridge;a drawer, to which the cartridge is detachably attachable, the drawer being slidable in the second direction between a drawn-out position, in which the cartridge attached to the drawer is drawn outside the chassis through the opening, and a stored position, in which the cartridge attached to the drawer is stored inside the chassis;an intermediate transfer belt configured to receive the developer image from the photosensitive drum;a secondary transfer roller configured to transfer the developer image from the intermediate transfer belt to the sheet;a first feed roller configured to feed the sheet toward the secondary transfer roller;a first sheet guide configured to guide the sheet to the first feed roller; anda second sheet guide attachable to and detachable from the chassis, the second sheet guide being configured to guide the sheet from the opening to the first sheet guide when the second sheet guide is attached to the chassis,wherein, when the drawer is at the stored position and the second sheet guide is attached to the chassis, a length of the ...

Bond paper photocopying machine

A xerographic photocopying machine with provisions for holding a stack of cut sheets of bond copy paper and a supply roll of bond copy paper therein, electrical switch means for selectively activating feeding means for feeding sheets from the stack or feeding and cutting means for feeding sheets to be cut from the end of the paper from the roll, a paper guide to receive copy paper sheets from one direction from the stack and from the other direction from the roll, the guide terminating in a common delivery throat for sheets from either source and including sheet advancing rollers along the guide, and a leading edge sensor for pre-positioning the sheet from either source for subsequent advancement coordinate with the operation of the image forming and transfer mechanism. The paper roll is mounted in convenient position alongside of the copying and stack feeding mechanism for ready roll replacement and threading of the new roll.

Toner image printing apparatus

A toner image printing apparatus has a first case accommodating a printing device for forming a toner image on a sheet, and a second case having a top wall for receiving the first case thereon and accommodating a sheet supplying device for supplying the printing device with a sheet on which the toner image is to be formed. The first case is provided in the center of the bottom wall thereof with a sheet inlet opening for receiving the sheet, while the second case is provided in the center of the top wall thereon with a sheet supplying opening through which the sheets are supplied by the sheet supplying device into the sheet inlet opening in the first case. The sheet inlet opening and the sheet supplying opening are maintained in alignment with each other even when the first case is rotated through 180 DEG in a horizontal plane with respect to the second case.

Dual purpose document and copy sheet feed cassette

A dual purpose removable cassette for a reproducing apparatus is provided, as well as a reproducing apparatus employing the cassette. The cassette is adapted to support both a supply of copy sheet material in the form of a fan-fold web as well as an extra long document which may be in either a coiled form or a fan-fold form.

Image forming apparatus

An intermediate transfer unit includes a stand member that is integral with an intermediate-transfer-unit body of the intermediate transfer unit. The stand member stretches below the intermediate-transfer-unit body from a trailing edge to a leading edge of the intermediate-transfer-unit in an attachment direction of the intermediate transfer unit.

Drucker mit Tonerladetür

Cassette for a copying machine

In a cassette for a copying machine having an essentially rectangular container for receiving a sheet stack, which container is, with the exception of its removal region, closed by a lid, it is provided that the lid is designed as a guide for a single sheet and is provided with means for covering the removal region.

Automatic alignment of sheets for proper print side orientation

A sheet is picked and moved along a path toward a print zone 120. During the operation a sensor 72 detects whether the sheet is properly oriented to receive print recording. If the proper side is not oriented to receiving print recording, then the sheet is flipped preferably by a modular duplex media handling system 22. The sheet has indicia to distinguish one side from the other. Also provided is a print recording apparatus further comprising a simplex media handling assembly 14 and a removable duplex media handling module.

APPAREIL ELECTROSTATIQUE D'ENREGISTREMENT POUR COPIEUR, TELECOPIEUR ET IMPRIMANTE

L'INVENTION CONCERNE UN APPAREIL D'ENREGISTREMENT ELECTROSTATIQUE. ELLE SE RAPPORTE A UN APPAREIL QUI COMPORTE DEUX ENSEMBLES 1, 2 ARTICULES L'UN SUR L'AUTRE ET QUI PEUVENT ETRE BLOQUES L'UN SUR L'AUTRE. L'ENSEMBLE INFERIEUR 2 COMPORTE UN DISPOSITIF 58 COMPRENANT UN ELEMENT PHOTOCONDUCTEUR, ET UN DISPOSITIF 59 DE DEVELOPPEMENT QUI COMPREND UN ROULEAU DE DEVELOPPEMENT, PLACE AU CONTACT DE L'ELEMENT PHOTOCONDUCTEUR. UN COMMUTATEUR DE SECURITE INTERROMPT L'ALIMENTATION DES QUE LES DEUX ENSEMBLES SONT ECARTES L'UN DE L'AUTRE. L'APPAREIL EST SUR, PEU ENCOMBRANT, D'ENTRETIEN FACILE, ET DE LONGUE DUREE D'UTILISATION, ET IL DONNE UNE BONNE QUALITE D'IMAGE. APPLICATION AUX APPAREILS FORMANT DES COPIEURS, DES TELECOPIEURS OU DES IMPRIMANTES.

Image forming apparatus

A position detecting sensor for detecting that a sheet having come into an openable both-face conveying path for reversing the surfaces of the sheet having an image formed on one surface thereof and conveying the reversed sheet to an image forming portion has arrived at a predetermined re-feeding position, and the position detecting sensor is designed to be capable of detecting also the presence or absence of the occurrence of jam in the both-face conveying path, the mounting and dismounting of a both-face conveying portion and the opening and closing of the both-face conveying path.

Removable duplexer tray module for an imaging apparatus

A removable media handling module includes a body that is horizontally slidable into and removable from an imaging apparatus. The media handling module includes a lower media guide extending between a front and a rear of the body in a direction of insertion of the body into the imaging apparatus. With the media handling module inserted into the imaging apparatus, the lower media guide is positioned parallel to and spaced from a corresponding upper media guide mounted in the imaging apparatus to form at least a portion of a duplex media path therebetween. The media handling module includes a media feed through channel extending from a bottom of the body to an entrance of a simplex media path to allow media to be fed from a media tray below the media handling module and into the simplex media path when the media handling module is installed in the imaging apparatus.

Image forming apparatus and process cartridge

An image forming apparatus includes: a main body; a process cartridge detachably attachable to the main body, the process cartridge including an image carrier configured to carry a developer image thereon and a cartridge frame; a feeding path configured to feed a recording sheet to a transfer position where the developer image carried on the image carrier is transferred to the recording sheet; and a returning path configured to return the recording sheet that has passed the transfer position to the feeding path. The cartridge frame defines at least a part of the feeding path and at least a part of the returning path.

Sheet feed apparatus for image forming system

Image forming apparatus including sheet feeding apparatus, sheet conveying apparatus, sheet delivering apparatus, structure for supporting the sheet conveying apparatus and sheet delivering apparatus and having an opening side, sheet storing apparatus, and structure for guiding the sheet storing apparatus such that the sheet forming apparatus is detachable from the sheet feeding apparatus at the same opening side.

Image forming apparatus with a removable waste toner container and an exposable feeding path

An image forming apparatus is provided. The image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container.

Image-forming apparatus

For achieving a low height and compact construction of a multi-mode image forming apparatus, in particular a copying machine, an internal tray (23) is provided serving for both, i.e. as an intermediate tray for temporarily stocking the paper midway between copying operations when the paper is copied a plurality of times and as a paper-discharging tray for stocking the paper after a final copying process. The tray (23) is arranged on the upstream side of a paper-resupplying device (24) and is composed of a first paper-stocking portion (44) and a second paper-stocking portion (45) separated from each other. A paper-discharging device (17) is provided with a branching guide (38) arranged on the upstream side of a paper-discharging portion (42) for branching off a paper (P1) of maximum size on which an image has been formed toward the tray and for positioning said paper such that the front end thereof housed on the tray does not reach to paper-resupplying roller (25) in the paper-resupplying ...

Copy media registration module

A copy media registration module for positioning paper in a feed path is disclosed. More specifically, the present invention is directed to a module (200) for registering copy media on an imaging member that lies at the end of a paper path (178), where the registration module can be removed from and replaced into a machine as a single unit. In addition, enhancements can be added to the module to provide for even more accurate copy media registration and greater media substrate latitude as desired. The modular nature of the registration module allows diagnostic testing as well as repairs and/or periodic maintenance to be easily conducted on the unit outside of the machine in which it is typically used. It also provides easy replacement of the unit if it is no longer functional, or for a temporary unit to be used while the permanent unit is being repaired.

COPYING DEVICE

PURPOSE: To prevent paper jam of a copying object in a peripheral apparatus, by constituting so that the peripheral apparatus is not operated, when the copying object has been inputted to the peripheral apparatus at a speed which exceeds the processing capacity of the peripheral apparatus. CONSTITUTION: A fitting distance l of the first and the second form detectors 8, 18 is set to a distance (l=a copying object discharging speed × a copying time) at which both the detectors 8, 18 detect a form, in case when a copier is in a continuous copying mode (when a feed-in speed exceeds the processing capacity), and a discharge time interval is measured by the detectors 8, 18, and also when its time interval (a feed-in speed of the copying object) exceeds the processing capacity (for instance, in case of the continuous copying mode), the peripheral apparatus is not operated, by which paper jam is prevented. COPYRIGHT: (C)1983,JPO&Japio ...

Image forming apparatus provided with conveyance unit

An image forming apparatus includes an apparatus body, a conveyance unit withdrawably mounted on the apparatus body, and a driving mechanism disposed in the apparatus body. The conveyance unit has a power transmission member which transmits the driving force generated by the driving mechanism to the conveyance member. The power transmission member has a drive input section disposed on the outside of a housing for receiving the driving force. The driving mechanism is disposed on the apparatus body side, and has a drive output section engageable with the drive input section. The drive input section and the drive output section engage with each other in a mounted state that the conveyance unit is mounted on the apparatus body, and the engagement between the drive input section and the drive output section is released in a withdrawn state that the conveyance unit is withdrawn from the apparatus body.

IMAGE FORMING APPARATUS, STORAGE MEDIUM, AND LIFE DETERMINATION METHOD

An image forming apparatus including: a sheet feeding roller which feeds a sheet accumulated on a tray; and a hardware processor which: detects a movement speed of the sheet currently fed by the sheet feeding roller; and calculates a difference amount between the movement speed and a first reference speed, and determines a life of the sheet feeding roller based on the difference amount, wherein the hardware processor determines whether or not to use the movement speed of a first sheet for life determination based on a relationship between the movement speed of the first sheet and the movement speed of a sheet fed before the first sheet, and if the hardware processor determines not to use the movement speed of the first sheet for the life determination, the hardware processor calculates the difference amount by excluding the movement speed of the first sheet. 1. An image forming apparatus comprising:a sheet feeding roller which feeds a sheet accumulated on a tray; anda hardware processor which:detects a movement speed of the sheet that is currently fed by the sheet feeding roller; andcalculates a difference amount between the movement speed and a first reference speed, and determines a life of the sheet feeding roller based on the difference amount, whereinthe hardware processor determines whether or not to use the movement speed of a first sheet for life determination based on a relationship between the movement speed of the first sheet and the movement speed of a sheet which is fed before the first sheet, and if the hardware processor determines not to use the movement speed of the first sheet for the life determination, the hardware processor calculates the difference amount by excluding the movement speed of the first sheet.2. The image forming apparatus according to claim 1 , comprising a first sensor which is arranged downstream of the sheet feeding roller in a conveyance direction of the sheet and detects arrival of a front end of the sheet which is fed claim ...

Image forming apparatus

An image forming apparatus includes an apparatus body, a rotatable first rotary member, a rotatable second rotary member, a casing, a sheet discharge port, an opening and closing member, a duct, and a fan. The casing is provided within the apparatus body and storing the first and second rotary members. The sheet discharge port discharges the recording material that has passed through the nip portion out of the casing. The opening and closing member has the sheet discharge port and opens a conveyance path of the recording material from the nip portion to the sheet discharge port. The fan suctions air from the suction port through the duct. The duct is provided on the opening and closing member and comprises a suction port to suction air from the conveyance path. The suction port is provided on the same side as the first rotary member with respect to the conveyance path.

SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME

A sheet processing apparatus includes a conveying portion, a stack portion on which sheets are stacked, a first binding portion moving in a crossing direction crossing a conveying direction, a first regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a first rack moving in the crossing direction with the first regulating portion, a first pinion forming a rack-pinion mechanism with the first rack, a second regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a second rack moving in the crossing direction with the second regulating portion, a second pinion forming another rack-pinion mechanism with the second rack, a third regulating portion regulating a position of a sheet bundle stacked on the stack portion, and a second binding portion which binds a corner portion of a sheet bundle without a staple. 1. A sheet processing apparatus , comprising:a conveying portion which conveys sheets;a conveying path which is a path for sheets conveyed by the conveying portion;a stack portion on which sheets discharged from a discharging port of the conveying path by the conveying portion in a conveying direction are stacked;a first binding portion which moves in a crossing direction crossing to the conveying direction so that the first binding portion moves from a first side of the sheet processing apparatus to a second side of the sheet processing apparatus and moves from the second side to the first side;a first regulating portion which regulates a position of a sheet bundle, stacked on the stack portion, in the crossing direction by contacting an end of the first side of the sheet bundle in the crossing direction and moves in the crossing direction;a first rack configured to be movable in the crossing direction together with the first regulating portion;a first pinion forming a first rack-pinion mechanism together with the first rack, and moving the first ...

Image forming apparatus, server, and non-transitory computer readable medium

An image forming apparatus includes multiple parts and a drive controller. The multiple parts are used to implement an image forming operation. The drive controller exerts control in such a manner that parts, each of the parts being possibly an abnormal-noise source, among the multiple parts are sequentially driven in predetermined order in an operating state for specifying a position at which abnormal noise is produced.

ELECTRONIC DEVICE AND IMAGE-FORMING APPARATUS

Provided is an electronic device that outputs a notification sound that takes into consideration those of older age. The electronic device is an electronic device that outputs a notification sound, and includes a frequency-setting unit and a notification-sound-control unit. The frequency-setting unit sets an initial frequency for the notification sound. The notification-sound-control unit causes the notification sound to be outputted at the initial frequency, and performs control so that the frequency of the notification sound is lowered from the initial frequency as time passes. 1. An electronic device that is an electronic device that outputs a notification sound , comprising:a frequency-setting unit that sets an initial frequency for the notification sound; anda notification-sound-control unit that performs control so that the notification sound is outputted at the initial frequency, and so that the frequency of the notification sound is lowered from the initial frequency as time passes.2. The electronic device according to claim 1 , whereinthe notification-sound-control unitperforms control so that the volume of the notification sound is lowered to correspond to the lowering of the frequency of the notification sound.3. The electronic device according to claim 1 , further comprisingan operation unit that receives a setting for an audible-range age; whereinthe frequency-setting unitsets a preset frequency that corresponds to the audible-range age that is received by the operation unit as the initial frequency.4. The electronic device according to claim 1 , further comprisinga mode-setting unit that comprises a normal mode that outputs a normal-mode notification sound and a high-frequency mode that outputs a high-frequency-mode-notification sound; whereinthe frequency-setting unitsets the initial frequency in the high-frequency mode to be higher than the frequency of the normal-mode-notification sound.5. The electronic device according to claim 4 , whereinthe mode ...

Damper mechanism of turning member, relay conveying unit, and image forming apparatus

The damper mechanism includes a rack and a damper unit. The rack is provided in an apparatus main body. The damper unit is provided in a turning member. The damper unit has a movable gear, a fixed gear and a supporting member. The movable gear is configured to engage with the rack and to rotate by the turning of the turning member. The fixed gear is configured to be engaged with the movable gear and to apply a load to the rotation of the movable gear. The movable gear is supported by the supporting member so as to move relatively with respect to the fixed gear in a direction to be engaged with the fixed gear at the turning of the turning member in one direction and in another direction to be separated from the fixed gear at the turning of the turning member in the other direction.

Image Forming Apparatus With Removable Waste Toner Container and Exposable Feeding Path

An image forming apparatus is provided. The image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container.

Image forming apparatus

An image forming apparatus comprising a conveyance path of recording material comprises a door, when opened, the inside of the apparatus is exposed, and an interlock circuit which detects opening/closing state of the door. The detection unit of the door is arranged on the conveyance path. At the arranged position, the image forming apparatus comprises a registration sensor for detecting presence and absence of the recording material and delivery sensor. The CPU controls pressure to the recording material S passing the fixing nip portion formed by a pair of rollers arranged on the conveyance path. Also, the CPU decides whether the recording material exists at the fixing nip portion based on the respective detection result from the registration sensor and the delivery sensor.

IMAGE FORMING APPARATUS PROVIDED WITH SWITCHING MECHANISM FOR SWITCHING TRANSMISSION STATE OF DRIVE FORCE

An image forming apparatus includes a conveyer roller exposed to an attachment space and a drive force transmission mechanism for transmitting a drive force from a drive source. The drive force transmission mechanism includes a plate driving gear exposed to the attachment space, a transmission gear train transmitting a drive force to the conveyer roller and to the plate driving gear, and a switching mechanism. The switching mechanism includes a driven gear transmitting the drive force to the transmission gear train, a pendulum gear revolvable between a coupled position in which the pendulum gear is engaged with the driven gear and an uncoupled position in which the pendulum gear is separated from the driven gear, and a transmission switch movable between a first position for holding the pendulum gear in the uncoupled position and a second position for allowing the pendulum gear to revolve between the coupled and uncoupled positions. 1. An image forming apparatus comprising:a housing provided with a sheet cassette attachment portion defining an attachment space;an image forming unit provided in the housing and configured to form an image on a sheet;a drive source configured to supply a drive force; a lifter plate configured to support the sheet and to displace the sheet in vertical direction;', 'a plate-elevating gear configured to transmit the drive force to the lifter plate; and', 'a pressing portion;, 'a sheet cassette movable between an attached position at which the sheet cassette is attached to the sheet cassette attachment portion and a detached position at which the sheet cassette is detached from the sheet cassette attachment portion, the sheet cassette comprisinga conveyer roller exposed to the attachment space, and configured to receive the drive force from the drive source to impart a conveying force to the sheet; and a plate driving gear exposed to the attachment space, and configured to be coupled to the plate-elevating gear in the state where the sheet ...

Sheet conveying apparatus and image forming apparatus

A sheet conveying apparatus includes: a drawer portion that includes a pair of conveying rollers which convey a sheet; a conveying portion that includes a pair of separating rollers which convey the sheet; and a controller that controls operations of the drawer portion and the conveying portion such that, the pair of separating rollers are separated from each other if a jam of a sheet occurs in a state in which a subsequent sheet subsequent to a preceding sheet spans the drawer portion and the conveying portion, the pair of conveying rollers convey the subsequent sheet to a part between the pair of separating rollers, the separation of the pair of separating rollers is released, and the pair of separating rollers convey the subsequent sheet along with the preceding sheet to a position at which the subsequent sheet does not span the drawer portion and the conveying portion using.

SHEET CONVEYING DEVICE AND IMAGE READING DEVICE INCLUDING THE SAME

A sheet conveying device includes a control unit. The control unit determines whether a first sheet and a second sheet being double-fed are in a full double feed state in which the first sheet and the second sheet are conveyed while overlapping each other from distal end parts of the first sheet and the second sheet in a conveyance direction or a partial double feed state in which the second sheet is conveyed while overlapping a rear part of the first sheet than the distal end part of the first sheet, stops an operation of a sheet conveying mechanism when it is determined that the sheets are in the full double feed state, and performs double feed elimination control for eliminating the double feeding of the sheets without stopping the sheet conveying mechanism when it is determined that the sheets are in the partial double feed state. 1. A sheet conveying device comprising:a conveying mechanism configured to convey sheets along a sheet conveyance path;a double feed detection sensor provided at a double feed detection position set in the sheet conveyance path and configured to output a signal for detecting double feeding of the sheets;a double feed determination unit configured to determine whether the double feeding of the sheets is occurring based on the signal of the double feed detection sensor;a double feed state determination unit configured to determine whether, when the double feed determination unit determines that the double feeding is occurring, a first sheet and a second sheet being double-fed are in a full double feed state in which the first sheet and the second sheet are conveyed while overlapping each other from distal end parts of the first sheet and the second sheet in a conveyance direction or a partial double feed state in which the second sheet is conveyed while overlapping a rear part of the first sheet than the distal end part of the first sheet in the conveyance direction; anda control unit configured to stop an operation of the conveying ...

RECORDING MATERIAL TRANSPORT SYSTEM, RECORDING MATERIAL TRANSPORT APPARATUS, AND IMAGE FORMING APPARATUS

A recording material transport system includes a first transport apparatus including a transport unit that transports a recording material and a notification unit that notifies a user about how to deal with a recording material whose transport has been stopped; and a second transport apparatus including a transport unit that transports a recording material transported from the first transport apparatus and a notification unit that notifies the user about how to deal with a recording material whose transport has been stopped, wherein in a case where a recording material has stopped in both of the first and second transport apparatus, the notification unit of the first transport apparatus notifies the user about how to deal with the recording material in the first transport apparatus, and the notification unit of the second transport apparatus notifies the user about how to deal with the recording material in the second transport apparatus. 1. A recording material transport system comprising:a first transport apparatus including a transport unit that transports a recording material and a notification unit that notifies a user about how to deal with a recording material whose transport by the transport unit has been stopped; anda second transport apparatus including a transport unit that transports a recording material transported from the first transport apparatus and a notification unit that notifies the user about how to deal with a recording material whose transport by the transport unit has been stopped,wherein in a case where a recording material that has stopped is present in both of the first transport apparatus and the second transport apparatus, the notification unit of the first transport apparatus notifies the user about how to deal with the recording material in the first transport apparatus, and the notification unit of the second transport apparatus notifies the user about how to deal with the recording material in the second transport apparatus.2. The ...

Image forming apparatus

The present invention is concerning to an image forming apparatus comprising: a drawer unit that includes therein a paper-feeding conveying path for conveying a recording medium conveyed from a paper feeding unit on which the recording mediums are stacked to an image forming unit and/or a discharge conveying path for conveying the recording medium on which an image has been formed to a discharging unit, and be drawn out from an apparatus main body; a lock unit that locks the drawer unit to the apparatus main body; a straddle detecting unit that detects whether the recording medium straddles a conveying path in the apparatus main body and a conveying path in the drawer unit; and a controller that controls the lock unit to lock the drawer unit to the apparatus main body when the straddle detecting unit detects the straddle.

CONVEYING APPARATUS, SHEET CONVEYING APPARATUS AND IMAGE RECORDING APPARATUS

A conveying apparatus includes: a casing formed with a first sheet-conveyance passage and a second sheet-conveyance passage positioned inwardly as compared with the first sheet-conveyance passage; a cover member including a first resin member having a first guide surface for defining the first sheet-conveyance passage, a second resin member attached to the first resin member and located on an inner side of the casing than the first guide surface and defining the first sheet-conveyance passage, and a third resin member attached to the second resin member at a position opposite to the first resin member with respect to the second resin member and having a third guide surface for defining the second sheet-conveyance passage; and a metal frame attached to the second resin member at a position between the second resin member and the third resin member. 1. A sheet conveying apparatus comprising:a casing formed with a conveyance passage including a curved passage;a conveyance roller positioned downstream of the curved passage in a conveyance direction of a sheet and configured to convey the sheet;a resin member positioned outwardly in relation to the curved passage, having both end portions in a widthwise direction orthogonal to the conveyance direction which are supported by the casing, and having a central portion in the widthwise direction which is elastically deformable to be warped outwardly in relation to the curved passage;a metal frame attached to the resin member such that a relative position in the widthwise direction with respect to the resin member is displaceable; andanother resin member provided closely to the curved passage as compared with the metal frame, attached to the resin member to constitute an outer guide surface for comparing at least a part of the curved passage, and having a coefficient of friction smaller than that of the resin member at least on the outer guide surface.2. The sheet conveying apparatus according to claim 1 ,wherein the metal ...

SHEET CONVEYING DEVICE AND IMAGE FORMING APPARATUS

A sheet conveying device includes a third pivoting guide member located between a first pivoting guide member on a side of fixed guide members and a second pivoting guide member on a side of an opening/closing member. In a state in which an upstream conveying path and a re-conveying path are formed, the first pivoting guide member pivots toward the third pivoting guide member to expand the upstream conveying path when pushed by a sheet conveyed from the upstream conveying path, and the third pivoting guide member pivots toward the first pivoting guide member to expand the re-conveying path when pushed by a sheet conveyed from the re-conveying path. 1. A sheet conveying device comprising:a device body;a conveyance merging part where sheets conveyed from different directions join;at least a first sheet conveying path and a second sheet conveying path configured to convey sheets to the conveyance merging part; anda guide unit provided between the first sheet conveying path and the second sheet conveying path, the guide unit including the first guide portion being a portion for constituting the first sheet conveying path, the second guide portion being a portion for constituting the second sheet conveying path;wherein the first guide portion is able to expand the first sheet conveying path by pivoting against a biasing force of the biasing member when pushed by a sheet conveyed from the first sheet conveying path, andwherein the second guide portion is able to expand the second sheet conveying path by pivoting against a biasing force of the biasing member when pushed by a sheet conveyed from the second sheet conveying path.2. The sheet conveying device according to claim 1 , further comprising:the biasing member configured to bias the first guide portion and the second guide portion in directions to separate from each other.3. The sheet conveying device according to claim 2 , wherein the first guide portion and the second guide portion are positioned due to the biasing ...

Image Forming Apparatus With Removable Waste Toner Container and Exposable Feeding Path

An image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container. 1. An image forming apparatus for forming an image on a sheet , comprising:a chassis comprising a wall having an opening;at least one processing cartridge, each having a photosensitive drum extending in a first direction;a scanner unit configured to irradiate light onto the photosensitive drum;an intermediate transfer belt configured to receive a developer image transferred from the photosensitive drum;an internal sheet-feed tray configured to accommodate a first sheet therein;a secondary transfer roller configured to transfer the developer image from the intermediate transfer belt to the sheet that is one of the first sheet and a second sheet;a first feeding path configured to feed the first sheet from the internal sheet-feed tray to the secondary transfer roller, the first feeding path comprising a first feed roller for feeding the first sheet toward the secondary transfer roller;a second feeding path configured to feed the second sheet that is inserted into the chassis through the opening,wherein the photosensitive drum is arranged in a lower position with respect to the scanner unit, and the photosensitive drum is arranged in an upper position with respect to the intermediate transfer belt;wherein the intermediate transfer belt is arranged in a lower position with respect to the photosensitive drum, and the intermediate transfer belt is arranged in an upper position with respect to the second feeding path;wherein the ...

IMAGE FORMING APPARATUS

An image forming apparatus includes an image forming unit, a fixing unit, first and second rotating members, and a discharge unit to discharge a recording material to an outside. The fixing unit fixes an image from the image forming unit onto the recording material. The first rotating member comes into contact with and guides the image bearing recording material, and is driven to rotate by conveyance of the recording material. The second rotating member comes into contact with the image bearing recording material more on a downstream side than the first rotating member in a conveyance direction of the recording material, guides the recording material, and is driven to rotate by conveyance of the recording material. The first rotating member does not perform swinging motion by coming into contact with the recording material, and the second rotating member performs swinging motion by coming into contact with the recording material. 1. An image forming apparatus comprising:an image forming unit configured to form an image on a recording material;a fixing unit configured to fix the image that has been formed by the image forming unit onto the recording material;a first rotating member configured to come into contact with the recording material onto which the image has been fixed and guide the recording material, and configured to be driven to rotate by conveyance of the recording material;a second rotating member configured to come into contact with the recording material onto which the image has been fixed more on a downstream side than the first rotating member in a conveyance direction of the recording material and guide the recording material, and configured to be driven to rotate by conveyance of the recording material; anda discharge unit configured to discharge the recording material guided by the first rotating member and the second rotating member to an outside of the image forming apparatus,wherein the first rotating member is configured not to perform ...

Bypass feeder and image forming apparatus incorporating same

A bypass feeder, which is included in an image forming apparatus, includes an opening/closing unit opening and closing with respect to an apparatus body between a unit closed state and a unit open state, a bypass tray opening and closing with respect to the opening/closing unit between a tray closed state and a tray open state, a linkage including a flexible-member fixing member and connecting the opening/closing unit to the apparatus body, and a flexible member having one end fixed to the fixing member and the other end fixed to the bypass tray. When the opening/closing unit is changed to the unit open state while the bypass tray is rotated away from the opening/closing unit to the tray open state, the fixing member of the linkage shifts by pulling the flexible member to hold the bypass tray at a substantially horizontal line with respect to a sheet loading surface.

Image forming apparatus

An image forming apparatus ( 100 ) includes a discharge section ( 210 ), a paper receiving tray ( 93 ), a first detecting section ( 211 ), a lever ( 220 ), a second detecting section ( 230 ) and a decision section ( 240 ). The first detecting section ( 211 ) is disposed in the discharge section ( 210 ), and detects a paper jam. The second detecting section ( 230 ) detects a swinging state of the lever ( 220 ) from a first position at which the lever ( 220 ) is not in the process of receiving an action of the paper sheet to a second position. The decision section ( 240 ) judges an occurrence factor in a paper jam to be a user-induced factor when the second detecting section ( 230 ) detects a state in which the lever is at the first position in a state where the first detecting section ( 211 ) detects the paper jam. Also, the decision section ( 240 ) judges the occurrence factor in the paper jam to be an image forming apparatus-induced factor when the second detecting section ( 230 ) detects a state in which the lever is swung over the first position in the state where the first detecting section detects the paper jam.

SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME

A sheet processing apparatus includes a conveying portion; a conveying path for sheets conveyed by the conveying portion; a stack portion where sheets discharged from the conveying path are stacked; a first binding portion moving in a crossing direction crossing the conveying direction; a first regulating portion regulating a position of a sheet bundle stacked on the stack portion; a first guide member guiding the first regulating portion; a second regulating portion regulating a position of a sheet bundle on the stack portion in the crossing direction; a second guide member guiding the second regulating portion; a third regulating portion regulating a position of a sheet bundle on the stack portion in the conveying direction; and a second binding portion binding a corner portion of a sheet bundle without a staple. The first binding portion binds a corner portion of a sheet bundle by a staple. 1. A sheet processing apparatus , comprising:a conveying portion which conveys sheets;a conveying path which is a path for sheets conveyed by the conveying portion;a stack portion on which sheets discharged from a discharging port of the conveying path by the conveying portion in a conveying direction are stacked;a first binding portion which moves in a crossing direction crossing to the conveying direction so that the first binding portion moves from a first side of the sheet processing apparatus to a second side of the sheet processing apparatus and moves from the second side to the first side;a first regulating portion which regulates a position of a sheet bundle, stacked on the stack portion, in the crossing direction by contacting an end of the first side of the sheet bundle in the crossing direction and moves in the crossing direction;a first guide member configured to guide the first regulating portion;a second regulating portion which regulates a position of a sheet bundle, stacked on the stack portion, in the crossing direction by contacting an end of the second side ...

IMAGE FORMING APPARATUS AND SHEET FEEDING DEVICE

An image forming apparatus includes a main assembly; an image forming portion for forming an image on a sheet; an openable member rotatably supported by the main assembly; a first feeding guide provided on the openable member; a second feeding guide provided in the main assembly, wherein when the openable member is closed, a sheet feeding path for feeding the sheet is formed by the first and second feeding guides; a hole provided in the first feeding guide; and an illumination device, provided on the openable member, for illuminating at least a part of the second feeding guide through the hole when the openable member is open. 118-. (canceled)19. A system comprising:an image forming apparatus configured to form an image on a sheet;a door rotatably supported by a body of said image forming apparatus;a first conveying guide provided on said door;a second conveying guide provided in said body, wherein when said door is closed, a sheet conveying path for conveying the sheet is formed by said first and second conveying guides;a sheet conveying apparatus, provided downstream of said image forming apparatus, said sheet conveying apparatus being detachably connected to said image forming apparatus and configured to convey to a post-processing device the sheet discharged from said image forming apparatus;a cover provided on said sheet conveying apparatus, wherein in a case where said sheet conveying apparatus is connected to said image forming apparatus, said door is opened after said cover is opened;a grip provided on said door;a first illumination device configured to illuminate said grip when said cover of said sheet conveying apparatus is opened; anda second illumination device configured to illuminate said second conveying guide when said door of said image forming apparatus is opened.20. A system according to claim 19 , further comprising a first opening/closing sensor configured to detect opening/closing of said cover claim 19 ,wherein on the basis of a detection ...

Image Forming Apparatus With Removable Waste Toner Container and Exposable Feeding Path

An image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container. 1. An image forming apparatus , comprising: a front wall having an opening; and', 'a rear wall spaced apart from the front wall in a predetermined direction,, 'a chassis comprisinga plurality of photosensitive drums aligned along the predetermined direction;a plurality of developing rollers for forming developer images on the plurality of photosensitive drums;a plurality of cartridges;an intermediate transfer belt configured to receive the developer images from the plurality of photosensitive drums;a secondary transfer roller configured to transfer the developer images from the intermediate transfer belt to a sheet;a first feed roller configured to feed the sheet toward the secondary transfer roller;a first sheet guide configured to guide the sheet to the first feed roller; anda second sheet guide attachable to and detachable from the chassis, the second sheet guide extending in the predetermined direction, the second sheet guide being configured to guide the sheet from the opening to the first sheet guide when the second sheet guide is attached to the chassis,wherein, when the second sheet guide is attached to the chassis, a rear end of the second sheet guide is located at a position frontward with respect to a rearmost one of the plurality of photosensitive drums2. The image forming apparatus according to claim 1 , wherein each of the plurality of cartridges comprises one of the plurality of photosensitive drums.3. The ...

BYPASS FEEDER AND DOOR ON AN IMAGE FORMING APPARATUS

A bypass feeder, which is included in an image forming apparatus, includes an opening/closing unit opening and closing with respect to an apparatus body between a unit closed state and a unit open state, a bypass tray opening and closing with respect to the opening/closing unit between a tray closed state and a tray open state, a linkage including a flexible-member fixing member and connecting the opening/closing unit to the apparatus body, and a flexible member having one end fixed to the fixing member and the other end fixed to the bypass tray. When the opening/closing unit is changed to the unit open state while the bypass tray is rotated away from the opening/closing unit to the tray open state, the fixing member of the linkage shifts by pulling the flexible member to hold the bypass tray at a substantially horizontal line with respect to a sheet loading surface. 19-. (canceled)10. A bypass feeder attached to an apparatus body of an image forming apparatus , the bypass feeder comprising:an opening/closing unit having a first fulcrum.the opening/closing unit configured to rotate about the first fulcrum and to open and close with respect to the apparatus body between a unit closed state in which the opening/closing unit is disposed at a position close to the apparatus body and a unit open state in which the opening/closing unit is disposed at a position separated from the apparatus body;a bypass tray having a sheet loading surface on which a sheet is loaded and having a second fulcrum,the bypass tray configured to rotate about the second fulcrum and to open and close with respect to the opening/closing unit between a tray closed state in which the bypass tray is disposed at a position close to the opening/closing unit and a tray open state in which the bypass tray is disposed at a position separated from the opening/closing unit;a linkage including a fixing member and openably connecting the opening/closing unit to the apparatus body;a support having one end fixed ...

Image Forming Apparatus With Removable Waste Toner Container and Exposable Feeding Path

An image forming apparatus is provided. The image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container. 1. An image forming apparatus configured to form an image on a recording sheet , comprising:a chassis having an opening formed on one side thereof;a photosensitive drum stored in the chassis;an intermediate transfer belt arranged to face the photosensitive drum;a first roller arranged in a lower position with respect to the intermediate transfer belt,the first roller being configured to convey the recording sheet from the one side of the chassis toward another side of the chassis opposite from the one side; anda unit configured to support the first roller, the unit being slidable between a drawn-out position, in which the first roller is drawn outside the chassis through the opening, and a stored position, in which the first roller is stored inside the chassis.2. The image forming apparatus according to claim 1 , wherein the chassis comprises a guide configured to guide the unit.3. The image forming apparatus according to claim 2 ,wherein the guide is a groove, of which height is greater in an area closer to the one side and smaller in an area closer to the another side of the chassis.4. The image forming apparatus according to claim 3 ,wherein the unit comprises a projection projecting outward in a direction parallel with an axial direction of the first roller, the projection being engageable with the guide.5. The image forming apparatus according to claim 4 ,wherein the projection ...

IMAGE FORMING APPARATUS

An image forming apparatus includes: a rotary member which transports a recording material; a first detecting unit which is provided upstream of the rotary member in a transport direction of the recording material and detects the recording material; a second detecting unit which is provided downstream of the rotary member in the transport direction of the recording material and detects the recording material; a driving unit which drives the rotary member; a control unit which controls the driving unit to rotate and stop the rotary member; and stopping units and which operate independently of the control unit and forcibly stop the driving unit based on detection results of the first detecting unit and the second detecting unit. 1. An image forming apparatus comprising:a rotary member that transports a recording material;a first detecting unit which is provided upstream of the rotary member in a transport direction of the recording material and detects the recording material;a second detecting unit which is provided downstream of the rotary member in the transport direction of the recording material and detects the recording material;a driving unit which drives the rotary member;a control unit which controls the driving unit to rotate and stop the rotary member; anda stopping unit which operates independently of the control unit and forcibly stops the driving unit based on detection results of the first detecting unit and the second detecting unit.2. The image forming apparatus according to claim 1 , wherein the stopping unit has a higher operating speed than the control unit.3. The image forming apparatus according to claim 1 , wherein claim 1 , in a case that the second detecting unit does not detect a leading end of the recording material after elapse of a predetermined time from detection of the leading end of the recording material by the first detecting unit claim 1 , the stopping unit forcibly stops the driving unit.4. The image forming apparatus according to ...

Image forming apparatus

An image forming apparatus, including: a fixing device arranged downstream of a transfer portion and configured to fix a toner image on a sheet; a regulation member arranged upstream of the fixing device and configured to regulate the sheet; a rotary shaft configured to rotatably support the regulation member; an urging member configured to urge the regulation member so as to bring a tip end portion of the regulation member into contact with the transfer portion at a contact portion; and an openable and closable member provided to a main body to open an opening portion, wherein the tip end portion can be rotated from a side opposite to the rotary shaft to a side of the rotary shaft with respect to a straight line extending from the contact portion and contacting the fixing device.

FIXING DEVICE AND IMAGE FORMING APPARATUS

A fixing device includes first and second rotatable members; a movable member; a first supporting side plate including an opening; a second supporting side plate; a detecting portion; a supporting plate; a holding portion; a slit portion; a first projected portion; a second projected portion; and a hole. When the position of the holding portion with respect to the height direction is regulated by the second projected portion in contact with the supporting plate, in a projection plane in which the outside of the first supporting side plate is viewed in the longitudinal direction of the first rotatable member, the flag portion is accommodated inside the opening and is in a non-overlapping position with the detecting portion. When the projected portion is engaged in the hole, in the projection plane, the flag portion is in an overlapping position with the detecting portion. 1. A fixing device comprising:first and second rotatable members forming a nip where a toner image on a recording material is formed;a movable member movable by arrival of the recording material at a predetermined position which is downstream of the nip with respect to a recording material feeding direction and which is within a passing region in which the recording material is passable with respect to a longitudinal direction of said first rotatable member,wherein said movable member includes a contact portion contactable to the recording material being in the predetermined position and includes a flag portion movable together with movement of said contact portion by the recording material contacting said contact portion;a first supporting side plate positioned outside the passing region with respect to the longitudinal direction and configured to rotatably support said first rotatable member, wherein said first supporting side plate including an opening having such a size that said flag portion is passable;a second supporting side plate positioned opposite from said first supporting side plate ...

IMAGE FORMING APPARATUS

An image forming apparatus includes a stacking unit, an access detecting unit, a malfunction detecting unit, a counting unit, and a process deciding unit. The stacking unit receives, as stacked, a recording material. The access detecting unit detects an access to the stacking unit by an operator. The malfunction detecting unit detects that a conveyance malfunction of the recording material has occurred on a conveying path guiding the recording material supplied from the stacking unit. The counting unit counts, after the access detecting unit detects an access to the stacking unit by the operator in a state that the malfunction detecting unit does not detect that the conveyance malfunction has occurred, the number of the conveyance malfunction detected by the malfunction detecting unit. The process deciding unit decides a process to address the conveyance malfunction based on the number of the conveyance malfunction counted by the counting unit. 1. An image forming apparatus comprising:a stacking unit on which a recording material is stacked;an access detecting unit configured to detect an access to the stacking unit by an operator;a malfunction detecting unit configured to detect that a conveyance malfunction of the recording material has occurred on a conveying path guiding the recording material supplied from the stacking unit;a counting unit configured to count, after the access detecting unit detects an access to the stacking unit by the operator in a state that the malfunction detecting unit does not detect that the conveyance malfunction has occurred, the number of the conveyance malfunction detected by the malfunction detecting unit; anda process deciding unit configured to decide a process to address the conveyance malfunction based on the number of the conveyance malfunction counted by the counting unit.2. The image forming apparatus according to claim 1 , further comprising:a display unit configured to display information,wherein, in a case where the ...

Opening/closing unit and image forming apparatus including the same

Provided is an opening/closing unit including a cover member and a conveying unit. The cover member is provided to one side surface of an apparatus main body so as to open and close a sheet conveying path. The conveying unit is provided inside of the cover member in the apparatus main body. The sheet conveying path includes a first conveying path formed between the conveying unit and the apparatus main body, and a second conveying path formed between the conveying unit and the cover member. When an operating lever of the cover member is rotated to a second position, opening operation of the cover member is enabled. When the operating lever is rotated to a first position in a state where the cover member is opened, the conveying unit rotates with respect to the cover member so that the second conveying path is opened.

SHEET CONVEYING DEVICE, IMAGE FORMING APPARATUS INCORPORATING THE SHEET CONVEYING DEVICE, AND POST PROCESSING DEVICE INCORPORATING THE SHEET CONVEYING DEVICE

A sheet conveying device, which is included in an image forming apparatus and a post processing device, includes a position detector configured to detect a position of a sheet, a sheet conveying body, a fixed body, a movable body configured to move, relative to the fixing body, between a first position and a second position different from the first position, and an index mounted on the fixed body. The sheet conveying device further includes a data storing device, a conveyance positional deviation calculator configured to calculate a positional deviation amount of the sheet to the reference sheet conveyance position, a detected positional deviation calculator configured to calculate a positional deviation amount of the position detector to the index based on a result of the position detector, and a reference position detector configured to correct the reference sheet conveyance position based on a result of the detected positional deviation calculator. 1. A sheet conveying device comprising:a position detector configured to detect a position of a sheet;a sheet conveying body configured to convey the sheet;a fixed body;a movable body on which the position detector is mounted and configured to move, relative to the fixing body, between a first position at which the position detector detects the position of the sheet and a second position different from the first position; andan index mounted on the fixed body and configured to function as a reference position based on which a positional deviation amount of the position detector at the first position is calculated.2. The sheet conveying device according to claim 1 , further comprising a detected positional deviation calculator configured to calculate a positional deviation amount of the position detector relative to the index claim 1 , based on a detection result of a position of the index by the position detector.3. The sheet conveying device according to claim 2 , further comprising a reference position corrector ...

Image Forming Apparatus With Removable Waste Toner Container and Exposable Feeding Path

An image forming apparatus is provided. The image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container. 1. An image forming apparatus configured to form an image on a recording sheet , comprising:a chassis having an opening formed on one side thereof;a plurality of photosensitive drums stored in the chassis and aligned along a predetermined direction;an intermediate transfer belt arranged to face the plurality of photosensitive drums;a first roller arranged in a lower position with respect to the intermediate transfer belt, the first roller being configured to convey the sheet in a direction from the one side of the chassis toward the other side opposite from the one side; anda unit removably installed in the chassis from the one side, the unit being configured to support the first roller.2. The image forming apparatus according to claim 1 , further comprising:a second roller arranged to face the first roller, the second roller being mounted on the chassis.3. The image forming apparatus according to claim 2 ,wherein the unit comprises a third roller arranged in a position displaced from the first roller in a sheet-conveying direction.4. The image forming apparatus according to claim 1 , wherein the first roller is a driven roller.5. The image forming apparatus according to claim 1 ,wherein the chassis comprises a guide configured to guide the unit toward the other side of the chassis.6. The image forming apparatus according to claim 5 ,wherein the guide comprises a guide groove, a ...

FEEDING APPARATUS

A feeding apparatus includes a feeding rotary member, a conveying rotary member pair, an output unit, a detection unit, and a control unit. The conveying rotary member pair includes first and second rotary members. The control unit stops a feeding operation when the detection unit does not detect the recording material by the time when a threshold time has elapsed after an operation of feeding a recording material is stated. The control unit determines that the recording material is stopped at a position on an upstream side relative to the nip portion in the feeding direction in a case where a rotation speed of the second rotary member, indicated by a state signal output from the output unit at least in a period of time from when the recording material reaches the nip portion to when the feeding operation is stopped, is faster than a threshold speed. 1. A feeding apparatus comprising:a feeding rotary member configured to feed a recording material accommodated in an accommodation unit; 'wherein the conveying rotary member pair includes first and second rotary members which form a nip portion and the recording material is conveyed while being nipped in the nip portion;', 'a conveying rotary member pair configured to convey the recording material fed by the feeding rotary member,'}an output unit configured to output a state signal in accordance with a rotation state of the second rotary member;a detection unit configured to determine whether the recording material has reached a position on a downstream side relative to the nip portion in a feeding direction of the recording material; anda control unit configured to stop the feeding operation in a case where the detection unit does not detect the recording material by the time when a threshold time has elapsed after the feeding operation is started on the recording material by the feeding rotary member and the conveying rotary member pair,wherein the control unit determines that the recording material is stopped at a ...

IMAGE FORMING APPARATUS HAVING FUNCTION FOR DETECTING SHEET CONVEYANCE DELAY

An image forming apparatus comprises a container, a supplier, a conveyor, a grammage detector, a sheet detector, an image former, and a processor. The processor set a flag when the detected grammage exceeds a first grammage, measures a conveyance time of a sheet to the sheet detector, determines a conveyance delay of the sheet based on whether the conveyance time is greater than or equal to a first amount of time, counts a number of occurrences of the conveyance delay in a state where the detected grammage exceeds the first grammage, and prohibits supply of sheets from the container when the detected grammage exceeds a second grammage larger than the first grammage or the number of occurrences of the conveyance delay is greater than or equal to a threshold value. 1. An image forming apparatus comprising:a container configured to contain sheets;a supplier configured to supply a sheet contained in the container to a conveyance path;a conveyor configured to convey the sheet in the conveyance path;a grammage detector configured to detect a grammage of the sheet conveyed in the conveyance path;a sheet detector configured to detect the sheet at a predetermined position in the conveyance path;an image former configured to form an image on the sheet; andat least one processor, a function for setting a flag in a case where the grammage detected by the grammage detector exceeds a first grammage,', 'a function for measuring a conveyance time of the sheet to the sheet detector,', 'a function for determining a conveyance delay of the sheet based on whether the conveyance time is greater than or equal to a first amount of time,', 'a function for counting a number of occurrences of the conveyance delay in a state where the grammage detected by the grammage detector exceeds the first grammage, and', 'a function for prohibiting supply of sheets from the container when the grammage exceeds a second grammage larger than the first grammage or the number of occurrences of the conveyance ...

Sheet processing apparatus and control method

A sheet processing apparatus is described. The sheet processing apparatus includes a housing section, a conveyance mechanism and a controller. The housing section accommodates a sheet. The conveyance mechanism conveys the sheet accommodated in the housing section to a predetermined position at the downstream side in a sheet conveyance direction. The controller controls the conveyance mechanism to remove a needle-free binding section of a sheet bundle if a conveyance jam of the sheet occurs.

IMAGE FORMING APPARATUS AND OPERATION METHOD THEREOF

An image forming apparatus includes an image transfer device, an image fixing device disposed downstream with respect to the image transfer device in a sheet conveying direction, one or more sheet sensors disposed along a sheet conveying path, a control panel, and a controller. The image fixing device is configured to fix a toner image transferred onto a sheet by the image transfer device. The controller is configured to determine whether or not a jammed sheet is at least partially positioned between the image transfer device and the image fixing device based on a detection result of the one or more sheet sensors. The controller is further configured to control the control panel to display different procedures to handle the jammed sheet, depending on the determination whether or not the jammed sheet is at least partially positioned between the image transfer device and the image fixing device. 1. An image forming apparatus comprising:an image transfer device;an image fixing device disposed downstream with respect to the image transfer device in a sheet conveying direction, and configured to fix a toner image transferred onto a sheet by the image transfer device;one or more sheet sensors disposed along a sheet conveying path;a control panel; and determine whether or not a jammed sheet is at least partially positioned between the image transfer device and the image fixing device based on a detection result of the one or more sheet sensors; and', 'control the control panel to display different procedures to handle the jammed sheet, depending on the determination whether or not the jammed sheet is at least partially positioned between the image transfer device and the image fixing device., 'a controller configured to2. The image forming apparatus according to claim 1 , wherein the controller is configured to:control the control panel to display a first procedure to handle the jammed sheet when determining that the jammed sheet is not positioned between the image ...

SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME

A sheet processing apparatus includes a conveying portion for conveying sheets, a conveying path for sheets, a stack portion for stacking sheets, a first binding portion having a first binding member and moving in a crossing direction crossing to the conveying direction, a first regulating portion which regulates a position of a sheet bundle stacked on the stack portion, a second regulating portion which regulates a position of a sheet bundle stacked on the stack portion, a third regulating portion which regulates a position of a sheet bundle, and a second binding portion which has a second binding member and binds a corner portion of a sheet bundle without a staple. The first binding portion binds a corner portion of a sheet bundle by a staple. The second binding member is located at a downstream of the first binding member in the conveying direction. 1. A sheet processing apparatus , comprising:a conveying portion which conveys sheets;a conveying path which is a path for sheets conveyed by the conveying portion;a stack portion on which sheets discharged from a discharging port of the conveying path by the conveying portion in a conveying direction are stacked;a first binding portion which has a first binding member and which moves in a crossing direction crossing to the conveying direction so that the first binding portion moves from a first side of the sheet processing apparatus to a second side of the sheet processing apparatus and moves from the second side to the first side;a first regulating portion which regulates a position of a sheet bundle, stacked on the stack portion, in the crossing direction by contacting an end of the first side of the sheet bundle in the crossing direction and moves in the crossing direction;a second regulating portion which regulates a position of a sheet bundle, stacked on the stack portion, in the crossing direction by contacting an end of the second side of the sheet bundle in the crossing direction and moves in the crossing ...

IMAGE HEATING APPARATUS

An image heating apparatus includes a rotatable heating member, a first motor configured to rotationally drive the rotatable heating member, a belt unit, a position detecting portion, a tilting mechanism including a second motor for tilting the belt unit, a jam detecting portion, and a controller. When the occurrence of the jam is detected by the jam detecting portion during a tilting operation of the belt unit, the controller stops drive of the first motor and drive of the second motor in response to detection of the occurrence of the jam by the jam detecting portion. 1. An image heating apparatus comprising:a rotatable heating member configured to heat a toner image on a recording material;a first motor configured to rotationally drive said rotatable heating member;a belt unit including an endless belt configured to heat said rotatable heating member in contact with an outer peripheral surface of said rotatable heating member and including first and second supporting rollers configured to rotatably support said endless belt;a position detecting portion configured to detect that said endless belt is deviated from a predetermined zone with respect to a widthwise direction of said endless belt;a tilting mechanism including a second motor as a driving source for tilting said belt unit and configured to tilt said belt unit in a direction for returning the endless belt to the predetermined zone, in response to an output of said position detecting portion;a jam detecting portion configured to detect occurrence of a jam; anda controller configured to control said first and second motors,wherein when the occurrence of the jam is detected by said jam detecting portion during a tilting operation of said belt unit, said controller stops drive of said first motor and drive of said second motor in response to detection of the occurrence of the jam by said jam detecting portion.2. An image heating apparatus according to claim 1 , wherein when the occurrence of the jam is ...

Removable duplexer tray module for an imaging apparatus

A removable media handling module includes a body that is horizontally slidable into and removable from an imaging apparatus. The media handling module includes a lower media guide extending between a front and a rear of the body in a direction of insertion of the body into the imaging apparatus. With the media handling module inserted into the imaging apparatus, the lower media guide is positioned parallel to and spaced from a corresponding upper media guide mounted in the imaging apparatus to form at least a portion of a duplex media path therebetween. The media handling module includes a media feed through channel extending from a bottom of the body to an entrance of a simplex media path to allow media to be fed from a media tray below the media handling module and into the simplex media path when the media handling module is installed in the imaging apparatus.

Image forming apparatus

An image forming apparatus includes a first plurality of image forming sections that form a first toner image for adjustment and transfer the first toner image for adjustment to a medium; a second plurality of image forming sections that form a second toner image for adjustment and transfer the second toner image for adjustment to the medium; and a detection device configured to detect a misregistration between the first toner image for adjustment transferred to the medium and the second toner image for adjustment transferred to the medium.

Image forming system and image forming apparatus

An image forming system according to the present invention includes a jam detection unit 111 which detects a jam of a paper conveyed along conveyance paths 118 e, 127, 138 , and 148 of an image forming system 100 , and a control unit 111 which temporarily stops the conveyance of papers when the jam has been detected by the jam detection unit, after the originating paper is removed, conveys papers, other than an originating paper having caused the jam, remaining in the conveyance path in such away that an interval between a preceding paper and a following paper in the conveyance path is expanded, and discharges the papers from the image forming system.

SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME

A sheet processing apparatus includes a conveying portion, a stack portion which stacks sheets, a first regulating portion which regulates a position of a sheet bundle in a crossing direction crossing to a conveying direction, a second regulating portion which regulates a position of a sheet bundle in the conveying direction, a first binding portion which moves from a first side to a second side and binds a corner portion of a sheet bundle by a staple, a second binding portion which binds a corner portion of a sheet bundle without a staple. The second binding portion includes a first face having a plurality of projections and a second face having a plurality of concave grooves matching the plurality of projections. A sheet bundle is bound by pressing the first face and the second face. 1. A sheet processing apparatus , comprising:a conveying portion which conveys sheets;a stack portion on which sheets conveyed in a conveying direction by the conveying portion are stacked;a first regulating portion which regulates a position of a sheet bundle, stacked on the stack portion, in a crossing direction crossing to the conveying direction by contacting an end of the sheet bundle in the crossing direction;a second regulating portion which regulates a position of a sheet bundle, stacked on the stack portion, in the conveying direction by contacting an end of the sheet bundle in the conveying direction;a first binding portion which moves in the crossing direction so that the first binding portion moves from a first side of the sheet processing apparatus to a second side of the sheet processing apparatus and moves from the second side to the first side, and binds a corner portion of a sheet bundle by a staple, the corner portion including an end where the first regulation portion has contacted and an end where the second regulation portion has contacted, the corner portion being on the first side of the sheet bundle;a second binding portion which binds a corner portion of a ...

PRINTING EQUIPMENT AND PRINTING METHOD

There is provided printing equipment that enhances the overprinting position accuracy in overprinting and a printing method for the printing equipment. In the printing method, a paper meandering profile acquisition part acquires a meandering profile of paper from a result of detection by a paper deviation detection sensor. A paper speed profile acquisition part acquires a paper speed profile from a result of detection by a paper conveyance speed detection sensor. A paper feed error calculator calculates a paper feed error on the basis of the meandering profile and paper speed profile. A paper feed error corrector corrects the image formation timing on the basis of a result of calculation by the paper feed error calculator. 1. Printing equipment comprising:a paper deviation detector for detecting deviation of paper being conveyed, in a main scanning direction;a paper meandering profile acquisition part for acquiring a profile of meandering in a width direction of the paper from a result of detection by the paper deviation detector;a paper feed error calculator for calculating a paper feed error on the basis of the meandering profile acquired by the paper meandering profile acquisition part; anda corrector for correcting image formation timing on the basis of a result of calculation by the paper feed error calculator.2. The printing equipment according to claim 1 , further comprising:a paper feed device for feeding continuous paper as the paper;an image forming apparatus for forming an image on the continuous paper fed from the paper feed device; anda paper take-up device for winding up the continuous paper after formation of the image in the image forming apparatus.3. The printing equipment according to claim 1 , wherein the paper feed error calculator calculates the paper feed error before start of printing.4. The printing equipment according to claim 3 , wherein the paper feed error calculator continues to calculate the paper feed error even during printing claim 3 ...

Image forming apparatus

An image forming apparatus includes a transferer that transfers a toner image to a sheet and a fixer that thermally fixes the toner image transferred on the sheet by the transferer, and forms an image on the sheet, the image forming apparatus further including: a loop detector that detects a loop amount of a loop formed on the sheet between an upstream side conveying member and a downstream side conveying member that convey the sheet; and hardware processor that controls the loop amount on the basis of a detection signal of the loop detector, wherein the hardware processor performs prediction control of the loop amount in a case where it is determined that a distorted loop has occurred on the sheet on the basis of the detection signal of the loop detector.

IMAGE FORMING APPARATUS

An image forming apparatus includes a roller, a motor, a control circuit, an interlock switch, and a regeneration diode. The roller is configured to transport a printing sheet or a document sheet. The motor is configured to drive the roller and the motor is supplied electric power from a predetermined power supply system. The control circuit is connected to the predetermined power supply system. The interlock switch is arranged between the motor and the control circuit in the power supply system. The regeneration diode is arranged to the interlock switch. Further, the control circuit includes a processor that acts in accordance with a program, and increases power consumption of the processor by changing an action of the processor if the interlock switch breaks power supply from the power supply system to the motor. 1. An image forming apparatus , comprising:a roller configured to transport a printing sheet or a document sheet;a motor configured to drive the roller, the motor supplied electric power from a predetermined power supply system;a control circuit connected to the predetermined power supply system;an interlock switch arranged between the motor and the control circuit in the power supply system; anda regeneration diode arranged to the interlock switch;wherein the control circuit comprises a processor configured to act in accordance with a program, and increases power consumption of the processor by changing an action of the processor if the interlock switch breaks power supply from the power supply system to the motor.2. The image forming apparatus according to claim 1 , wherein if the interlock switch breaks power supply from the power supply system to the motor claim 1 , the control circuit causes the processor to repeatedly process a no operation code and thereby increases power consumption of the processor.3. The image forming apparatus according to claim 1 , wherein the processor comprises an analog circuit and controls the analog circuit on on-off ...

FIXING DEVICE AND IMAGE FORMING APPARATUS

A fixing device () includes a fixing member (), a pressing member (), a rotation detector (), and an auxiliary driving part (). The fixing member (), with rotating around an axis, heats a toner image on a medium (S). The pressing member (), with rotating around an axis, forms a pressing area (N) with the fixing member () and presses toner on the medium (S) passing through the pressing area (N). The rotation detector (), when the medium (S) stops while being sandwiched between the fixing member () and the pressing member (), detects rotation of the fixing member () or the pressing member () generated in a process of extracting the medium (S) toward an upstream side or a downstream side in a passing direction. The auxiliary driving part (), while the medium (S) is being extracted, determines a rotating direction of the fixing member () or the pressing member () based on a detection result by the rotation detector (), and rotates the fixing member () or the pressing member () in the rotating direction. 1. A fixing device comprising:a fixing member, with rotating around an axis thereof, heating a toner image on a medium;a pressing member, with rotating around an axis thereof, forming a pressing area with the fixing member and pressing toner on the medium passing through the pressing area;a rotation detector, when the medium stops while being sandwiched between the fixing member and the pressing member, detecting rotation of the fixing member or the pressing member generated in a process of extracting the medium toward an upstream side or a downstream side in a passing direction;an auxiliary driving part, while the medium is being extracted, determining a rotating direction of the fixing member or the pressing member based on a detection result by the rotation detector, and rotating the fixing member or the pressing member in the rotating direction;a pressure adjusting part pressurizing the pressing area by moving one of the fixing member and the pressing member in a ...

IMAGE FORMING APPARATUS

An image forming apparatus includes, a main body of the image forming apparatus configured to form an image on a sheet, and provided with a stacking portion on which a sheet with an image formed thereon is stacked, a sheet conveyance device detachably attached to the stacking portion. of the main body of the image forming apparatus, and provided with a conveyance path for conveying a sheet, a guide portion disposed in the sheet conveyance device, and configured to guide the conveyed sheet, a vertically extending wall portion disposed in the main body of the image forming apparatus, facing the stacking portion, and a restriction portion protruded from the wall portion, and configured to restrict a movement of the guide portion in a direction for opening the conveyance path. 1. An image forming apparatus comprising:a main body of the image forming apparatus configured to form an image on a sheet, and provided with a stacking portion on which a sheet with an image formed thereon is stacked;a sheet conveyance device detachably attached to the stacking portion of the main body of the image forming apparatus, and provided with a conveyance path for conveying a sheet;a guide portion disposed in the sheet conveyance device, and configured to guide the conveyed sheet;a vertically extending wall portion disposed in the main body of the image forming apparatus, facing the stacking portion; anda restriction portion protruded from the wall portion, and configured to restrict a movement of the guide portion in a direction for opening the conveyance path.2. An image forming apparatus comprising:a main body of the image forming apparatus configured to form an image on a sheet, and provided with an open space above a stacking portion on which a sheet with an image formed thereon is stacked;a sheet conveyance device detachably attached to the stacking portion of the main body of the image forming apparatus, and provided with a conveyance path where the sheet with an image formed ...

PRESSURE APPLYING DEVICE AND FIXING DEVICE

A pressing device includes a cam member , a bearing , a cam portion , a cam engaging portion of snap fit fashion. The bearing is rotatably supported by a fixing frame . The cam portion is provided on one side of the bearing and contacts a pressing lever. The cam engaging portion is provided on the other side of the bearing and engage with a hole formed on the outer surface of a cam shaft . The cam engaging portion engages with the hole at a position away from maximum load portion of the cam portion by not less than 90 degrees phase different. 1. A pressing device for pressing an object , said pressing device comprising:a pressing lever rotatable about a fulcrum and configured to press the object;a rotatable shaft;a side plate supporting said rotatable shaft;a cam portion fixed on said rotatable shaft and having an outer peripheral surface including portions away from the rotational axis of said rotatable shaft by different distances, said cam portion being contactable to said pressing lever to cause said pressing lever to apply a pressure to the object; anda snap fit portion including at its free end an engaging portion engageable with a portion-to-be-engaged provided on said rotatable shaft to fix said cam portion and said rotatable shaft,wherein said cam portion is provided on one side of said side plate with respect to a direction of the axis, and said snap fit portion is provided on the other side thereof, andwherein said portion-to-be-engaged has a phase not less than 90 degrees away from a portion of the outer peripheral surface of said cam portion where the distance between the rotational axis and the outer peripheral surface of said cam portion is maximum.2. A device according to claim 1 , wherein said portion-to-be-engaged is in the form of a hole provided in an outer peripheral surface of said rotatable shaft.3. A device according to claim 1 , wherein a plurality of such maximum distance portions are provided claim 1 , and said engaging portion is in a ...

IMAGE FORMING APPARATUS

A protruding portion protruding in a rotation axis direction of an image bearing member is provided at a position between the tip of a separation claw and an apex of the separation claw, when the apex of the separation claw is disposed at a position farthest from the surface of the image bearing member in a direction perpendicular to a straight line connecting the tip and the rotation center of a shaft portion of the separation claw. 1. An image forming apparatus comprising:an image bearing member configured to bear a toner image and transfer the toner image onto a sheet at a transfer position;a cleaning mechanism configured to clean toner on the image bearing member; anda separation mechanism disposed between the transfer position and the cleaning mechanism in a rotation direction of the image bearing member, the separation mechanism including a separation claw configured to come into contact with the image bearing member and separate the sheet, and a support base that rotatably supports the separation claw,wherein the separation claw extends towards the image bearing member from the support base, and includes a leading edge that comes into contact with a surface of the image bearing member and a protruding portion, protruding in a rotation axis direction of the image bearing member,wherein an apex of the separation claw is disposed at a position farthest from the surface of the image bearing member in a direction perpendicular to a straight line connecting a tip portion of the leading edge and a rotation center of a shaft portion of the separation claw engaged with the support base, and wherein the protruding portion is disposed at a position between the tip portion and the apex.2. The image forming apparatus according to claim 1 , further comprising an urging member between the support base and the separation claw and configured to urge the leading edge of the separation claw against the surface of the image bearing member.3. The image forming apparatus according ...

Paper supply stand

내용 없음. No content.

Laser beam printer without paper supply cassette

The laser beam printer comprises a main body with a laser scanning unit for converting an electric signal into a laser beam and scanning the laser beam. A fixation part fixes the developed paper and a development part disposed at a front of the laser scanning unit develops an image on paper. A front cover supplies the paper and covers the main body and is mounted to a side of the main body by a hinged connection mounted to a lower portion of the main body in order to connect the cover to the main body. A guide slot allows the developing part to be disposed to the main body, and a paper discharge unit discharges the paper having been fixed and comprises a pair of paper discharge rollers and a discharging type select roller.

Developing member, process cartridge and electrophotographic apparatus

본 발명에 의하면, 고온 하에서의 변형 회복성이 우수하고, 또한 저온 하에서의 내필르밍성을 만족시키는 고품위의 현상 부재가 제공된다. 본 발명의 현상 부재는, 축심체와, 상기 축심체의 외주면에 형성된 탄성층과, 상기 탄성층의 외주면을 피복하고 있는 표면층을 포함하고, 상기 표면층은 제1 수지 및 제2 수지를 함유하고, 상기 제1 수지는 인접하는 2개의 우레탄 결합 사이에 특정한 구조를 갖고, 상기 제2 수지는 특정한 구조를 가지며 유리 전이점 Tg가 20℃ 이상 120℃ 이하인 수지이다. According to the present invention, there is provided a high-quality developing member which is excellent in deformation recovery under high temperature and satisfies the anti-foaming property at a low temperature. The developing member of the present invention comprises an axial core, an elastic layer formed on the outer peripheral surface of the axial core, and a surface layer covering the outer peripheral surface of the elastic layer, wherein the surface layer contains a first resin and a second resin, The first resin has a specific structure between two adjacent urethane bonds, and the second resin has a specific structure and has a glass transition point Tg of 20 ° C or more and 120 ° C or less.

Image forming apparatus and sheet conveying apparatus

Jam paper discharge control method for jam removal

본 발명은 복사기등에서 잼(JAM) 발생시 사용자가 직접 잼걸린 용지를 제거하지 않더라도, 자동으로 잼(JAM)이 제거되도록 하기 위한 잼용지 자동배출 제어방법에 관한 것으로, 잼의 제거를 자동으로 시도하는 잼자동 제거모드와, 잼이 발생한 뒤 사용자가 복사시작키를 누름으로서 잼제거를 시도하는 반자동 제거모드, 기존 복사기와 같은 잼발생시 복사기가 정지하는 수동제거모드를 두어, 강제배출로 인한 롤러의 마모등 기구부의 열화를 방지할 수 있도록 한다. 그리고, 사용자가 복사기의 도어(DOOR)를 열지 않고도 바로 잼된 용지를 제거할 수 있도록 하되, 복사기 현상부 및 정착부의 오염과 기구부의 손상을 최소화하며, 잼제거중 또는 잼용지 수동제거를 표시하여 이를 사용자가 인식할 수 있도록 한다. The present invention relates to a jam paper automatic discharge control method for automatically removing the jam (JAM) even if the user does not remove jammed paper when a jam occurs in the copier, etc., attempting to automatically remove the jam The automatic jam removal mode, semi-automatic removal mode in which the user attempts to remove the jam by pressing the copy start key after the jam has occurred, and the manual removal mode in which the copier stops when a jam occurs, such as an existing copier, are worn. Prevent deterioration of the luminaire. In addition, the user can remove the jammed paper immediately without opening the door of the copier, while minimizing contamination of the copier developing unit and the fixing unit and damage of the mechanism unit, and displaying the jam removal or manual removal of the jam paper. Make the user aware.

画像形成装置及びこれに用いられるシート供給ユニット

画像形成装置

(57)【要約】 【課題】 隣り合う２側面の上部カバーと側部カバーに 開閉順序を設けるだけで、遮蔽部材のようなものを別部 材を設ける必要があり、部品点数が増加するだけでな く、構造が複雑になりコストが高くなるという問題があ った。 【解決手段】 画像形成装置本体１に前面及び側面にフ ロントカバー６とサイドカバー７を開閉可能に設け、フ ロントカバー６のサイドカバー７側の一端に、フロント カバー６及びサイドカバー７の閉成状態においてサイド カバー７の開放端側の一部を覆いサイドカバー７の開成 動作を阻止する阻止体６ａを設けている。

用紙検知装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

画像形成装置

【課題】残留したシートを除去する場合の作業性を向上する。【解決手段】加熱部材と加圧部材とを有する本体部と、本体部に設けられ、係合位置と載置位置との間を揺動可能な外装カバーと、を備えた画像形成装置であって、定着部と外装カバーの間に設けられ、本体部に設けられ、案内位置と退避位置との間を揺動可能な搬送ガイドと、搬送ガイドに設けられ、本体部に対して解除可能に係合して搬送ガイドを案内位置に保持する解除レバーと、搬送ガイドの解除レバーより鉛直方向下側に設けられ、加熱部材に対して加圧部材を、第一の押圧力より小さい第二の押圧力で押圧する押圧位置に移動させる操作レバーと、搬送ガイドの解除レバーと操作レバーの間に設けられ、外装カバー側に向けて垂直方向に突出した第一の突出部と、第一の突出部の操作レバー側に設けられ、操作レバー側に突出した第二の突出部であって、垂直方向において第一の突出部の外装カバー側の端部より搬送ガイド側の位置に設けられた第二の突出部と、を備えた。【選択図】 図７

Copying apparatus

Device for taking out jammed paper

Image forming device

Image formation apparatus

Automatic Jam Paper Discharge Control Method for Automatic Jam Removal

Recording device

Apparatus for copying both sides of paper

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Image forming apparatus including a sheet refeeding unit

An image forming apparatus having a refeeding unit for temporarily containing image-formed sheets as a horizontal pile and for refeeding the sheets for the second image forming operation. The refeeding unit can be pulled out from a body frame in the direction perpendicular to a sheet transporting direction. A setting position of the refeeding unit in the body frame can be adjusted to be parallel with the sheet transporting direction. The refeeding unit has an intermediate tray on which the sheets are piled, a refeeding roller which feeds the sheets piled on the intermediate tray from the most bottom sheet successively one by one, a sheet front end aligning member, a sheet rear end aligning member, a sheet side aligning member and a sheet pressing plate which, every time a sheet is transported to the intermediate tray and every time a sheet is refed from the intermediate tray, presses the sheet toward the refeeding roller.

Image forming apparatus having stopper

본 발명은 배출된 인쇄용지가 적재되는 용지적재부에 스톱퍼가 구비된 화상형성장치에 관한 것으로서, 상기 용지적재부의 용지배출방향의 선단부에 용지배출방향을 따라 형성된 수용부와; 상기 수용부에 용지배출방향을 따라 슬라이딩 이동 가능하도록 부분적으로 수용되는 베이스플레이트와; 상기 베이스플레이트와 힌지결합되어, 용지를 차단하는 기립위치와 상기 용지적재부에 적어도 일부 수용되도록 상기 베이스플레이트에 절첩되는 후방절첩위치와 용지배출방향으로 절첩되는 전방절첩위치 간을 회동하는 스톱퍼를 포함하는 것을 특징으로 한다. 이에 의해, 화상형성부로부터 배출되는 용지를 용지적재부의 일정위치에 정렬할 수 있으며, 용지적재부에 적재된 용지를 용이하게 취출할 수 있다. The present invention relates to an image forming apparatus having a stopper in a paper loading portion on which discharged printing paper is loaded, comprising: a receiving portion formed along a paper discharge direction at a leading end of the paper loading direction; A base plate partially accommodated in the accommodating part to be slidably moved along the paper discharge direction; A stopper hinged to the base plate to pivot between an upright position for blocking paper and a rear folding position folded at the base plate so as to be accommodated at least partially in the paper loading portion and a front folding position folded in the paper discharge direction; Characterized in that. As a result, the paper discharged from the image forming portion can be aligned at a predetermined position of the paper loading portion, and the paper loaded on the paper loading portion can be easily taken out. 인쇄용지배출, 적재, 취출 Printing paper discharge, loading, take out

Image forming device

一种成像装置，其包括：装置主体；成像部分，其布置在所述装置主体中；传送带，其在自身与成像部分之间形成第一传送路径；罩盖，其由一支撑轴轴向支撑，从而该罩盖可相对于所述装置主体枢转；以及包括所述传送带的传送带单元，其被轴向支撑从而该传送带单元可相对于所述罩盖枢转，并且在自身与罩盖之间形成第二传送路径，该第二传送路径使记录介质返回到第一传送路径。可通过使所述罩盖枢转而打开所述第一传送路径，且使所述传送带单元与罩盖一体枢转，并且可在其中所述第一传送路径已经打开的状态下通过使所述传送带单元枢转而打开第二传送路径。

Method of detecting paper

용지검지방법이 개시된다. 개시된 용지검지방법은 이송되는 용지가 용지검지장치에 검지 되었는가를 판단하는 단계와, 용지가 용지검지장치에 검지되었으면 계수기를 조정하는 단계와, 구동모터를 역회전시켜 일면에 화상이 형성된 용지를 반송경로를 따라 반송시키는 단계와, 반송되는 용지가 상기 용지검지장치에 검지되었는가를 판단하는 단계와, 용지가 용지검지장치에 검지되었으면 계수기를 조정하는 단계를 포함한다. A paper detection method is disclosed. The disclosed paper detecting method includes determining whether the paper to be conveyed is detected by the paper detecting device, adjusting the counter when the paper is detected by the paper detecting device, and conveying the paper having an image formed on one surface by rotating the driving motor in reverse. Conveying along the path, determining whether the conveyed sheet is detected by the sheet detecting device, and adjusting the counter when the sheet is detected by the sheet detecting device.

Method for driving image forming apparatus

본 발명에 따른 화상 형성 장치의 구동 방법은, 잠상을 형성하기 위한 감광 부재와, 상기 감광 부재에 형성된 잠상을 노광하기 위한 노광 장치와, 상기 노광된 잠상을 현상하기 위한 현상 장치와, 상기 현상된 잠상을 인쇄 용지로 전사시키기 위한 전사 장치와, 상기 인쇄 용지로 전사된 화상을 정착시키는 정착 장치와, 상기 감광 부재에 잔류하고 있는 전하 및 토너를 제거하기 위한 클리닝 장치와, 상기 인쇄 용지의 픽업을 감지하는 픽업 센서와, 상기 인쇄 용지의 급지를 감지하는 급지 센서, 및 상기 인쇄 용지의 배지를 감지하는 배지 센서를 구비하는 화상 형성 장치의 구동 방법에 있어서, 에러 신호가 발생하면, 상기 화상 형성 장치의 동작을 일단 정지시키는 단계와, 설정 시간 이내에 상기 에러 신호가 제거되면, 상기 화상 형성 장치를 재동작시키는 단계, 및 상기 에러 신호가 제거되지 않은 상태에서 설정 시간이 초과하면, 상기 감광 부재, 상기 전사 장치, 상기 정착 장치 및 상기 클리닝 장치중 적어도 어느 하나의 장치를 별도로 동작시키는 단계를 포함한다. A driving method of an image forming apparatus according to the present invention includes a photosensitive member for forming a latent image, an exposure apparatus for exposing a latent image formed on the photosensitive member, a developing apparatus for developing the exposed latent image, and the developed A transfer device for transferring a latent image to printing paper, a fixing device for fixing an image transferred to the printing paper, a cleaning device for removing charges and toner remaining in the photosensitive member, and a pickup of the printing paper. A driving method of an image forming apparatus, comprising: a pickup sensor for sensing, a paper feeding sensor for sensing feeding of the printing paper, and a discharge sensor for sensing discharge of the printing paper, wherein the image forming apparatus is provided when an error signal is generated. Once the operation of the image forming apparatus is restarted, if the error signal is removed within a set time; Step, and a step of if the error signal is set in the timeout state has not been removed, at least any one of operations of said device separate from the photosensitive member and the transfer device, the fixing device and the cleaning device.

Fixing device and image forming apparatus

定影装置(7)具有定影部件(21)、加压部件(22)、旋转检测部(41)和辅助驱动部(42)。定影部件(21)一边绕轴旋转一边对介质(S)上的调色剂图像进行加热。加压部件(22)一边绕轴旋转一边与定影部件(21)之间形成加压区域(N)，并对通过加压区域(N)的介质(S)上的调色剂进行加压。旋转检测部(41)在介质(S)在被定影部件(21)和加压部件(22)夹持的状态下停止的情况下，对在将介质(S)朝着通过方向的上游侧或下游侧抽出的过程中所产生的定影部件(21)或加压部件(22)的旋转进行检测。辅助驱动部(42)在介质(S)的抽出持续着的情况下，根据旋转检测部(41)的检测结果，判别定影部件(21)或加压部件(22)的旋转方向，并使定影部件(21)或加压部件(22)沿该旋转方向旋转。

Image forming device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Image forming apparatus

【課題】ユニット及び開閉カバーの開閉操作の操作性をより向上させることを可能とする画像形成装置を提供する。 【解決手段】画像形成装置１０は、画像形成部１３及びシート搬送機構１５が収納された画像形成装置本体１２を有している。画像形成部１３又はシート搬送機構１５の一部分は、画像形成装置本体１２に対して開閉可能に設けられたユニット４５を構成している。また、画像形成装置本体１２は、画像形成装置本体１２に対して開閉可能な開閉カバー１７と、ユニット４５及び開閉カバー１７を連結する連結機構１４０と、連結機構１４０によるユニット４５及び開閉カバー１７の連結を解除する連結解除機構１４２と、ユニット４５を閉じる方向に付勢する付勢機構９６と、連結機構１４０による連結を解除する連結解除機構１４２とを有している。 【選択図】図６

Image forming apparatus

Fixing device

Paper feed controller

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Picture forming device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Image forming apparatus

Image forming apparatus

본 발명에 따른 화상 형성 장치는 장치 본체와, 장치 본체에 설치된 화상 형성부와, 상기 화상 형성부와의 사이에 제 1 반송로를 형성하는 반송 벨트와, 상기 장치 본체에 대하여 회동(回動) 가능하게 지지축에 의해 축지지된 커버체, 및 상기 반송 벨트를 구비하고, 상기 커버체에 대하여 회동 가능하게 축지지되며, 기록 매체를 상기 제 1 반송로로 되돌리는 제 2 반송로를 상기 커버체와의 사이에 형성하는 반송 벨트 유닛을 구비하며, 상기 제 1 반송로는 상기 커버체를 회동시킴으로써 상기 반송 벨트 유닛이 일체로 회동해서 개방 가능하고, 상기 제 2 반송로는 상기 제 1 반송로를 개방한 상태에서 상기 반송 벨트 유닛을 회동시킴으로써 개방 가능하다. An image forming apparatus according to the present invention includes a device belt, an image forming portion provided on the device body, a conveying belt for forming a first conveying path between the image forming portion, and a rotation about the apparatus body. The cover includes a cover body axially supported by a support shaft, and the conveyance belt, the second conveying path being axially supported relative to the cover body and returning a recording medium to the first conveying path. A conveyance belt unit formed between the sieve, and the said 1st conveyance path is rotatable and the said conveyance belt unit can be opened integrally by rotating the said cover body, and the said 2nd conveyance path is a said 1st conveyance path It can be opened by rotating the said conveyance belt unit in the state which opened. 반송로, 반송 벨트, 지지축, 커버, 벨트 유닛, 개방 Conveying path, conveying belt, support shaft, cover, belt unit, opening

Recording paper guide device of copying machine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Image forming device

본 발명의 화상 형성 장치는, 횡방향으로 착탈(着脫) 가능하게 장치 본체에 설치되고, 종렬(縱列) 배치된 복수의 프로세스 카트리지; 상기 프로세스 카트리지에 대면(對面)하여 배치되고, 상기 프로세스 카트리지의 착탈 진로로부터 퇴피(退避) 가능한 벨트 몸체; 상기 벨트 몸체가 걸어 감기는 걸어 감김 롤러의 양단을 지지하는 내(內) 프레임; 상기 내 프레임의 외측에 설치되어 상기 내 프레임을 지지하는 외(外) 프레임; 및 상기 복수의 프로세스 카트리지의 각각의 단부(端部)에 설치되고, 상기 내 프레임과 상기 외 프레임 사이로부터 돌출되어, 상기 프로세스 카트리지의 착탈시에 파지(把持)되는 손잡이를 포함한다. An image forming apparatus of the present invention includes: a plurality of process cartridges which are attached to a main body of the apparatus so as to be detachable in a lateral direction and are arranged in a row; A belt body disposed to face the process cartridge and retractable from a detachable path of the process cartridge; An inner frame for supporting both ends of a winding roller to which the belt body is wound; An outer frame installed outside the inner frame to support the inner frame; And a handle that is provided at each end of the plurality of process cartridges, protrudes from between the inner frame and the outer frame, and is gripped when the process cartridge is attached or detached. 프로세스 카트리지, 벨트 몸체, 내 프레임, 외 프레임, 손잡이 Process cartridge, belt body, inner frame, outer frame, handle

Electrostatic recording apparatus

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Image forming apparatus

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Jam eliminating method of image forming device

[청구범위에 기재된 발명이 속한 기술분야] [Technical field to which the invention described in the claims belong] 본 발명은 화상형성장치에 관한 것으로, 특히 이송중인 용지에 잼이 발생한 경우 이를 제거하기 위한 잼 제거방법에 관한 것이다. The present invention relates to an image forming apparatus, and more particularly, to a jam removing method for removing a jam in a paper being conveyed. [발명이 해결하고자 하는 기술적 과제] [Technical Problem to Solve] 화상형성장치의 용지 이송 경로상에서 발생된 잼 용지를 제거할 수 있는 잼 제거방법을 제공함에 있다. The present invention provides a jam removing method capable of removing jam paper generated on a paper transfer path of an image forming apparatus. [발명의 해결방법의 요지] [Summary of the solution of the invention] 자동용지 급지장치를 구비하는 화상형성장치의 잼 제거방법에 있어서, 소정의 비디오데이타에 따른 화상을 프린팅하는 경우 잼 감지수단을 통해 잼이 발생되었는가를 판단하는 제1과정과, 상기 판단결과 잼이 발생된 경우 이에 응답하여 상기 잼 발생위치를 검색하는 제2과정과, 상기 검색결과 잼 발생 위치가 급지영역인 경우 이에 대응하여 용지 카세트를 상기 장치의 외부로 배출시키는 제3과정과, 상기 검색결과 잼 발생 위치가 전사영역 혹은 정착영역일 경우 이에 대응하여 잼 발생 용지의 구겨짐의 정도가 허용치 범위 이내인가를 검사하는 제4과정과, 상기 제4과정의 검사결과 상기 잼 발생 용지의 구겨짐의 정도가 허용치 범위 이내일 경우 주모터를 회전시켜 용지를 배출하는 반면, 상기 잼 발생 용지의 구겨짐의 정도가 허용치 범위 이상일 경우 상기 장치의 커버를 개폐시키는 제5과정과, 상기 제4과정의 검사결과 상기 잼 발생 위치가 배지영역일 경우 이에 대응하여 상기 주모터를 회전시켜 용지를 배출시키는 제6과정으로 이루어짐을 특징으로 한다. In the jam removing method of the image forming apparatus having an automatic paper feeder, the first step of determining whether the jam is generated by the jam detection means when printing the image according to the predetermined video data, and the determination result jam A second process of searching for the jam occurrence position in response to the occurrence of the jam; and a third process of discharging the paper cassette to the outside of the apparatus in response to the search result if the jam occurrence position is the paper feed area; and the search result. The fourth step of checking whether the jam generating paper is within the allowable range when the jam generating position is the transfer area or the fixing area; and the result of the inspection of the fourth step determines that the jam generating paper is ...

Copying machine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Protecting device for paper conveyance unit of electronic copying machine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Image forming system and image forming device

一种图象形成系统和图象形成装置，图象形成装置具备图象记录装置和记录材料供给装置，外部记录材料供给装置与记录材料供给装置并列设置并组装。该记录材料供给装置的记录材料供给装置本体设置成在连接外围设备一侧的内部侧壁与从记录材料供给装置把记录材料运送到图象记录装置的纵运送路径之间具有能把该纵运送路径从记录材料供给装置的正面一侧打开的空间部。

Image forming apparatus

An image forming apparatus comprising: an image recording unit including image carriers on which toner images are respectively formed, a paper carrier which conveys paper fed to a paper drawing-in position while drawing therein, and transfer units which transfer respective toner images on the image carriers onto the paper on the paper carrier at predetermined image transfer positions of the image carriers; paper jam detecting means for detecting a paper jam occurring when the paper drawn in by the paper carrier adheres to the surfaces of the image carriers; conveyor rollers disposed in a paper feeding unit which feeds the paper to a paper drawing-in position in the image recording unit at a predetermined timing; an inlet chute including an upper paper guide and a lower paper guide for guiding the paper fed from the conveyor rollers toward the paper drawing-in position; conveyor roller rotation control means which suspend the rotation of the conveyor rollers until the paper stretched between the image recording unit and the conveyor rollers of the paper feeding unit has passed through the conveyor rollers, if a paper jam arises while the paper is stretched between them; reverse rotation suspending means which rotates the paper carrier in a reverse direction if a paper jam arises and then suspends the rotation; and a removable member configured so as to be detachable from, and attachable to, a main unit of the image forming apparatus.

Paper feed structure for an image forming apparatus

在供纸盒内，具有标准尺寸纸张的收纳部和比该标准尺寸纸张面积小的小尺寸纸张的收纳部，并设置有用于将标准尺寸纸张及小尺寸纸张从各收纳部导入图像形成部中的各纸张输送通路，在各纸张输送通路上，沿上下方向设置有相互共用的部分。

Patent FR2646529B1

IMAGE FORMING APPARATUS AND ASSISTANCE SYSTEM THEREOF

Recording device

OPENING AND CLOSING MECHANISM

Dans un appareil d'impression tel qu'une imprimante utilisant une feuille d'impression appelée à pliage paravent 4 et une paire de brosses à poussière de papier 5 entre lesquelles la feuille d'impression à pliage paravent est avancée, est prévu un mécanisme pour séparer les brosses dans le cas où un couvercle 2, un panneau et analogue est ouvert. Autrement dit, il est facilement possible d'insérer la feuille, ou d'extraire la feuille coincée, puisque les brosses sont séparées lorsque le couvercle est ouvert. In a printing apparatus such as a printer using a so-called fan-fold printing sheet 4 and a pair of paper dust brushes 5 between which the fan-fold printing sheet is fed, a mechanism is provided for separate the brushes in the event that a cover 2, a panel and the like is opened. In other words, it is easily possible to insert the sheet, or extract the jammed sheet, since the brushes are separated when the cover is opened.

Assembly for managing one or more image-forming apparatuses

The invention relates to the management of several image-forming apparatuses. It relates to an assembly which comprises a management apparatus (104) connected to several image-forming apparatuses via a communications line (102b), a timer which receives a signal indicating jamming of a sheet of paper in the apparatuses and which measures the time which has elapsed during the jam, an alarm device which receives a signal from the timer, and an adjustable-level reference member transmitting a signal to the alarm device for determining the alarm transmission level. Application to the management of several image-forming apparatuses.

Document feeding device, and image forming apparatus

【課題】給紙ローラを駆動する駆動軸に原稿が引っ掛かって生じる搬送ジャムを防止することのできる原稿送り装置および画像形成装置を提供する。【解決手段】原稿送り装置２０は、装置本体２１に対して開閉自在に設けられる開閉カバー２２を有すると共に、装置本体２１側に給紙ローラ２３２および給紙ローラ２３２の駆動軸２３５を有している。開閉カバー２２の下面には、開閉カバー２２が閉じられた状態で、給紙ローラ２３２および駆動軸２３５に対向する位置に凹部２２１が設けられている。給紙ローラ２３２のローラ軸線方向の外側では、駆動軸２３５に対してガイド部材３０が回転可能に取り付けられている。ガイド部材３０は、開閉カバー２２が閉じられた状態で、凹部２２１の開口部分を覆い、搬送される原稿をガイドするペーパーガイドとして機能する。【選択図】図８

Apparatus for detecting opening of electro-photographic printer exit cover

본 발명은 하나의 센서로 정착유닛에 용지가 잼된 것과 배지커버가 열리고 닫힌 것을 알 수 있는 전자사진방식 인쇄기의 배지커버 열림감지장치에 관한 것이다. 이와 같은 목적을 달성하기 위해 본 발명에 의한 배지커버 열림감지장치는 인쇄기의 본체에 대해 여닫을 수 있도록 설치된 배지커버와, 배지커버에 회전할 수 있도록 설치되며 인쇄기 본체에서 이송되는 용지에 의해 동작하는 액추에이터와, 인쇄기 본체에 설치되며 액추에이터의 동작을 감지하는 센서, 및 센서로부터 신호를 받는 제어부를 포함하며, 용지에 의해 액추에이터가 동작되거나 배지커버가 열리면 센서가 제어부로 신호를 송신하는 것을 특징으로 한다. 여기서, 액추에이터는 용지의 이송경로 상에 위치하며 이송되는 용지와 간섭되는 용지감지편과, 용지감지편을 배지커버에 대해 회전지지하는 회전축, 및 회전축의 일단에 용지감지편과 소정의 각도를 갖도록 형성되며 용지감지편의 위치에 따라 상기 센서를 동작시키는 센싱도그를 포함하는 것을 특징으로 한다. 이때, 센싱도그는 용지감지편이 용지와 간섭되지 않은 경우에는 센서의 감지영역에 위치하는 것이 바람직하다.

Sheet supplying device

A sheet supplying device has at least one sheet stacking por­tion (25, 26, 27, 28) for stacking a plurality of sheets to be fed, a unit (62) for drawing the sheets out of the sheet stacking portion (25, 26, 27, 28) to feed the drawn sheet to a predetermined path (22), and a unit (66, 74, 81) for return­ing a sheet into the sheet stacking portion (25, 26, 27, 28). This sheet is drawn by the drawing unit (62) but stayed in a position that the leading edge thereof is out of the sheet stacking portion (25, 26, 27, 28).

Image forming apparatus