ARRANGEMENT FOR READING FROM AND/OR WRITING TO FLEXIBLE SHEET MEDIA IN A CURVED CONFIGURATION AND METHOD

An arrangement is described for reading information from and/or writing information to a sheet of flexible sheet material. A platen supports the sheet in a curved configuration across its width such that its first surface is inwardly oriented with respect to a curved configuration to define a tubular shape having lengthwise edges of the sheet positioned in a confronting relationship. An actuator moves the sheet in a direction along a lengthwise path oriented at least generally along the length and transverse to the direction of curvature, but without rotation about the lengthwise path. At least one of a read head and a write head, which can be fixed in the direction of movement along the lengthwise path, performs at least one of reading and writing information widthwise across the surface of the sheet as the sheet is moved along the path. 1. An apparatus for reading information from and/or writing information to at least one sheet of flexible sheet material , said sheet having a length and a width defining first and second opposing surfaces and opposing lengthwise and widthwise edges , said apparatus comprising:a platen to support said sheet in a curved configuration across said width such that said first surface is inwardly oriented with respect to said curved configuration to define a tubular shape having said lengthwise edges positioned in a confronting relationship;an actuator to move said flexible sheet material so supported in a direction along a lengthwise path oriented at least generally along said length and transverse to the direction of curvature, but without rotation about the lengthwise path; andat least one of a read head and a write head for at least one of reading and writing information widthwise across said first surface of said sheet as the sheet is moved along said path in said tubular shape.2. The apparatus according to wherein a second surface of said sheet is outwardly oriented and wherein said second surface is received against said platen.3. ...

ARRANGEMENT FOR READING FROM AND/OR WRITING TO FLEXIBLE SHEET MEDIA IN A CURVED CONFIGURATION AND METHOD

An assembly for transferring information to and/or from flexible sheet media in a highly advantageous curved configuration is disclosed. The sheet material includes a length and a width defining first and second opposing surfaces. The assembly includes support means for supporting the sheet the curved configuration across its width, having the first surface inwardly oriented with respect to the curved configuration. Thereafter, moving means moves the flexible sheet material so supported in a direction along a read/write path generally parallel to the sheet material length and transverse to the direction of curvature. A read/write arrangement is provided which is configured for reading and/or writing information across the width of the first surface of the sheet as the sheet is moved along the path in the curved configuration. In one feature, means is provided for rotationally moving the read/write arrangement in a predetermined way in the housing such that the read/write arrangement is in a confronting relationship with the first, inwardly oriented surface and cooperates with the movement provided by the sheet material moving means so as to cause the read/write arrangement to sequentially read information from and/or write information to the inwardly oriented, first surface of the sheet as the read/write arrangement traverses the width of the flexible sheet material while the latter is on the read/write path in the curved configuration. In another feature, a read and/or write operation may be performed on the second, outwardly oriented surface of the sheet material. 1. An apparatus for reading information from and/or writing information to at least one sheet of flexible sheet material , said sheet having a length and a width defining first and second opposing surfaces and opposing lengthwise and widthwise edges , said apparatus comprising:a platen for supporting said sheet in a curved configuration across said width such that said first surface is inwardly oriented ...

LIGHT SCANNING DEVICE AND IMAGE FORMING APPARATUS WITH THE SAME

A light scanning device includes: a first semiconductor laser that emits a light beam L; a polygonal mirror that deflects the light beam L; a reflective mirror that reflects the light beam L deflected by the polygonal mirror and causes the light beam L to enter a photosensitive drum ; and a BD sensor that detects the light beam L deflected by the polygonal mirror . The light scanning device scans the photosensitive drum with the light beam L and set scanning timing of the photosensitive drum using the light beam L based on detection timing of the light beam L using the BD sensor . The BD sensor is arranged in the position farther from the polygonal mirror than the last reflective mirror that reflects the light beam L immediately before entering the photosensitive drum and arranged inside a scanning angle range α of the light beam L corresponding to an effective scan area of the photosensitive drum 1. (canceled)2. A light scanning device , comprising:a light-emitting element;a deflecting section configured to deflect a light beam emitted from the light-emitting element;at least one reflective mirror configured to reflect the light beam and cause the light beam to enter a scan object, the light beam being emitted from the light-emitting element and deflected by the deflecting section; andan optical sensor configured to detect the light beam deflected by the deflecting section, whereinthe light scanning device is configured to scan the scan object with the light beam and set scanning timing of the scan object using the light beam based on detection timing of the light beam using the optical sensor, andthe optical sensor is arranged inside a scanning angle range of the light beam corresponding to an effective scan area of the scan object.3. The light scanning device according to claim 2 , further comprisinga detecting mirror configured to reflect a light beam deflected by the deflecting section and cause the light beam to enter the optical sensor, whereinthe detecting ...

Valuable file identification device

A valuable file identification device, comprising a housing; a hollow transparent drum; an annular clamping belt supported by at least two tension rollers and pressing against the transparent drum, the outer surface of the annular clamping belt and the outer surface of the transparent drum forming a clamping and conveying channel for the valuable file, and the length of the clamping and conveying channel being greater than that of the valuable file in the conveying direction; at least one information acquisition device, the information acquisition element of the information acquisition device being adjacent to the inner surface of the transparent drum, facing at least a part of the outer surface of the annular clamping belt, and being fixed relative to the side wall of the housing; and a power-driven device respectively driving the transparent drum and the annular clamping belt to move synchronously in opposite directions.

CHASSIS STRUCTURE, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS

A chassis structure includes: a chassis that houses a component used for an image forming apparatus inside and that includes an opening; a cover member that covers the opening of the chassis; and a seal member that is provided between the cover member and the chassis and that, when the cover member is attached to the chassis, is compressed and deformed so as to seal a gap between the cover member and the chassis. An attached section of the cover member to which the seal member is attached is provided with a hole. 1. A chassis structure comprising:a chassis that houses a component used for an image forming apparatus inside and that includes an opening;a cover member that covers the opening of the chassis; anda seal member that is provided between the cover member and the chassis and that, when the cover member is attached to the chassis, is compressed and deformed so as to seal a gap between the cover member and the chassis, whereinan attached section of the cover member to which the seal member is attached is provided with a hole.2. The chassis structure according to claim 1 , wherein a bottom section;', 'an outer wall section that rises from an outer circumference of the bottom section; and', 'an inner wall section that is provided inside the outer wall section, and, 'the cover member includes'}the attached section of the cover member is a section that is surrounded by the bottom section, the outer wall section, and the inner wall section.3. The chassis structure according to claim 2 , wherein the hole is provided on the bottom section between the outer wall section and the inner wall section.4. The chassis structure according to claim 2 , wherein the hole has a shape that protrudes in a thickness direction of the bottom section and in a direction that is opposite to a direction in which the outer wall section exists.5. The chassis structure according to claim 2 , wherein the outer wall section and/or the inner wall section has a guiding shape that enables the ...

Light scanning device and image forming apparatus with the same

A light scanning device includes: a first semiconductor laser 44 a that emits a light beam L 1; a polygonal mirror 42 that deflects the light beam L 1; a reflective mirror 64 a that reflects the light beam L 1 deflected by the polygonal mirror 42 and causes the light beam L 1 to enter a photosensitive drum 13; and a BD sensor 72 that detects the light beam L 1 deflected by the polygonal mirror 42. The light scanning device scans the photosensitive drum 13 with the light beam L 1 and set scanning timing of the photosensitive drum 13 using the light beam L 1 based on detection timing of the light beam L 1 using the BD sensor 72. The BD sensor 72 is arranged in the position farther from the polygonal mirror 42 than the last reflective mirror 64 a that reflects the light beam L 1 immediately before entering the photosensitive drum 13 and arranged inside a scanning angle range α of the light beam L 1 corresponding to an effective scan area of the photosensitive drum 13.

Multi-position lens assembly apparatus for exposing photosensitive media in a rotary printer

A multi-position lens enables the use of photosensitive media of multiple thicknesses in the printer, while utilizing the same projection optics. A printer includes a support (22) which receives and holds print media in a cylindrical shape in a manner that the outer surface of the print media is fixed, while the position of the inner surface of the print media varies with the thickness of the received print media. A rotor (11) is mounted for simultaneous rotation within, and linear translation along the axis of, the cylindrical shape of received print media. A write head assembly (32) on the rotor includes a light source, projection optics adapted to focus light from the source onto the inner cylindrical surface of received media, and apparatus for adjusting the focus of the projection optics so that the inner surface of received print media can be kept in focus for different thicknesses of print media light source. The projection optics is adapted to simultaneously focus light from the light source onto the inner cylindrical surface of received media.

Internal drum scophony raster recording device

An optical recording and data processing system for exposing an image on to a flexible, light sensitive medium, which includes a medium holder having an inner cylindrical wall portion against which is held said medium, and a light source having an approximately rectangular emitting aperture, with a short aperture axis and a long aperture axis, operative to emit a beam of light having a rectangular cross section with a long axis corresponding to the long aperture axis and a short axis corresponding to the short aperture axis. An optical modulator is aligned with the light source so as to intercept light from the beam of light and produce a spatial modulation pattern across the long axis of the beam of light. A pattern shifter for shifting the spatial modulation pattern across the length of the long axis at a constant rate is provided as is a pattern rotator for rotating the spatial modulation pattern at a rate equal to the rate of shifting of the spatial modulation pattern. A scanner for scanning the beam of light onto and across the circumference of the inner cylindrical wall portion and a driver for advancing the scanner mechanism, after scanning a row, to an adjacent row to repeat the scanning are both provided. The relative phase angle between rotation of the spatial modulation pattern and scanning of the pattern is maintained such that the direction of movement of the projected image of said shifting is parallel to the scan motion, but opposite in direction. An optical system is provided to project the modulated beam of light and focus it to produce an image of the shifting modulation pattern at the recording medium so that the rate of shifting motion cancels the scan motion.

Sheet material advancing device

FIELD: sheet advancing equipment, particularly to perform checking up, marking and other treatment or monitoring operations. SUBSTANCE: device is operated with the use of rigid rotary lever system including grippers which advance sheets along radial path from inner side of printed sheet, namely from concave side of path. EFFECT: provision an access to all sheet surface, improved ability of sheet treatment, possibility of device integration into current-technology printing machines. 16 cl, 11 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) (13) 2 248 317 C2 B 65 H 5/12 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2002132887/12, 30.04.2001 (72) Àâòîð(û): ØÅÄÅ Éîõàííåñ Ãåîðã (DE), ÐÀÉÍÕÀÐÄ Ãåðàëüä Éîçåô (DE), ÁÐÀÓÍ Ñòèâ (CH) (24) Äàòà íà÷àëà äåéñòâè ïàòåíòà: 30.04.2001 (30) Ïðèîðèòåò: 08.05.2000 (ïï.1-16) CH 907/00 (45) Îïóáëèêîâàíî: 20.03.2005 Áþë. ¹ 8 (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 09.12.2002 Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé (54) ÓÑÒÐÎÉÑÒÂÎ ÏÎÄÀ×È ËÈÑÒÎÂÎÃÎ ÌÀÒÅÐÈÀËÀ (57) Ðåôåðàò: æåñòêîé âðàùàþùåéñ ðû÷àæíîé ñèñòåìû ñ Èçîáðåòåíèå îòíîñèòñ ê óñòàíîâêàì äë çàõâàòàìè, ïîäàþùèìè ëèñòû ïî ðàäèàëüíîé ïîäà÷è ëèñòîâ è îáåñïå÷èâàåò ïðîâåðêó, òðàåêòîðèè ñ âíóòðåííåé ñòîðîíû ïå÷àòíîãî ëèñòà, ìàðêèðîâêó èëè ïðî÷èå îïåðàöèè îáðàáîòêè èëè òî åñòü ñ âîãíóòîé ñòîðîíû òðàåêòîðèè äâèæåíè , íàáëþäåíè ïîäàâàåìîãî ëèñòîâîãî ìàòåðèàëà è ÷åì äîñòèãàåòñ äîñòóïíîñòü ëèñòà îäíîâðåìåííî äîïóñêàåò êîìïàêòíîå è ãèáêîå èíòåãðèðîâàíèå ïî âñåé ïîâåðõíîñòè è óïðîùàåòñ åãî îáðàáîòêà. óñòðîéñòâà â ñîâðåìåííûå ïå÷àòíûå ìàøèíû. 15 ç.ï.ô-ëû, 11 èë. Ðàáîòà óñòðîéñòâà îñóùåñòâë åòñ ñ ïîìîùüþ R U 2 2 4 8 3 1 7 (87) Ïóáëèêàöè PCT: WO 01/85586 (15.11.2001) Ñòðàíèöà: 1 RU C 2 C 2 (86) Çà âêà PCT: CH 01/00270 (30.04.2001) 2 2 4 8 3 1 7 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: EP 0818307 ...

Patent JPS6219724B2

Scanning device

Exposure plant with internal drum

Изобретение относится к экспонирующим установкам с внутренним барабаном для переноса данных на носители информации. Установка содержит приемное средство для размещения носителей информации и передающую головку по меньшей мере с одним средством связи для переноса данных на носитель информации. При этом приемное средство, предпочтительно, по меньшей мере частично выполнено в форме цилиндра. Сторона носителя информации, предусмотренная для записи данных, обращена к оси цилиндра приемного средства. Приемное средство и передающая головка установлены с возможностью перемещения относительно друг друга таким образом, чтобы передающая головка могла перемещаться в направлении оси цилиндра приемного средства и вращаться вокруг нее. Средства связи выполнены в виде мощных лазерных диодов с длиной волны излучения 405 нм в ультрафиолетовой области спектра. Кроме того, лазерные диоды установлены в виде легко заменяемой диодной компоновки, а также легко заменяются по отдельности. Использование изобретения позволяет экспонировать обычные офсетные пластины. 25 з.п. ф-лы. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 400 939 (13) C2 (51) МПК H04N 1/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008141705/02, 19.03.2007 (24) Дата начала отсчета срока действия патента: 19.03.2007 (73) Патентообладатель(и): ЭКСПОУЗ ХОЛДИНГ АГ (CH) R U (30) Конвенционный приоритет: 21.03.2006 CH 438/06 (72) Автор(ы): БЕРНЕР Петер (CH) (43) Дата публикации заявки: 27.04.2010 2 4 0 0 9 3 9 (45) Опубликовано: 27.09.2010 Бюл. № 27 (56) Список документов, цитированных в отчете о поиске: WO 9852645 A1, 19.11.1998. EP 1189425 A2, 20.03.2002. EP 1543899 A2, 22.08.2005. RU 2181217 C2, 10.04.2002. 2 4 0 0 9 3 9 R U (86) Заявка PCT: CH 2007/000151 (19.03.2007) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 21.10.2008 (87) Публикация PCT: WO 2007/107030 (27.09.2007) Адрес для переписки: 129090, Москва, ул.Б. ...

Patent JPH0149071B2

Printing plate exposure system using tilt distortion cancellation signal

Production of drum assembly for internal drum type image forming device and the drum assembly

(57)【要約】 （修正有） 【課題】ドラム断面が半円筒形より大きいドラム表面材 を備えた内面ドラム画像装置のドラム組立品製造方法 と、その製造方法に従ってドラム装置を製造すること。 【解決手段】軸を有する円筒状マンドレルの周囲に、上 記画像形成面を構成するドラム表面材１６を着脱可能に 巻くステップと；このマンドレル７０に巻かれた状態の ドラム表面材の外側にドラム部材を装着し、該マンドレ ルとドラム表面材との間に真空室を形成するステップ と；上記ドラム表面材をマンドレルから分離するため に、該ドラム表面材とマンドレルとの間に流体軸受を形 成するステップと；ドラム表面材とマンドレルとの間に 流体軸受を形成したまま、上記ドラム部材に装着された ドラム表面材をマンドレルに対して軸方向に移動させ、 該ドラム部材とドラム表面材により、半円筒形より大き い上記画像形成面を形成するステップと；を有する内面 ドラム型画像装置のドラム組立品の製造方法。

MULTI-BEAM INTERNAL DRUM RECORDING DEVICE WITH MULTIPLE WAVELENGTHS

METHOD FOR MANUFACTURING A DRUM ASSEMBLY FOR AN INTERNAL DRUM IMAGING DEVICE AND DRUM ASSEMBLY

L'invention concerne un procédé de fabrication d'un ensemble de tambour, destiné à un appareil d'imagerie du type à tambour interne (28) et définissant une surface d'imagerie qui est au moins semi-cylindrique. Il comprend les étapes consistant à : enrouler de façon libérable, autour d'un mandrin généralement cylindrique (70) comportant un axe (85), un revêtement (16) de tambour qui définit une surface d'imagerie; attacher, tandis que le revêtement de tambour est enroulé autour du mandrin, un tambour au revêtement de tambour pour qu'ils définissant ensemble une surface au moins semi-cylindrique et coopèrent pour définir une chambre de vide; engendrer un palier fluidique entre le revêtement et le mandrin pour les séparer; et déplacer par rapport au mandrin le tambour et le revêtement attaché, dans une direction parallèle à l'axe afin d'enlever du mandrin l'ensemble de tambour, en maintenant le palier fluidique entre revêtement et mandrin. L'invention concerne aussi un ensemble de tambour ainsi fabriqué. A method of fabricating a drum assembly for an internal drum type imaging apparatus (28) defining an imaging surface which is at least semi-cylindrical. It comprises the steps of: releasably wrapping around a generally cylindrical mandrel (70) having an axis (85) a drum cover (16) which defines an imaging surface; attaching, while the drum liner is wrapped around the mandrel, a drum to the drum liner so that they together define an at least semi-cylindrical surface and cooperate to define a vacuum chamber; generating a fluidic bearing between the coating and the mandrel to separate them; and moving the drum and attached liner relative to the mandrel, in a direction parallel to the axis, to remove the drum assembly from the mandrel, maintaining the fluid bearing between liner and mandrel. The invention also relates to a drum assembly thus manufactured.

DEVICE AND METHOD FOR POSITIONING PHOTOSENSITIVE INFORMATION MEDIA ON AN EXPOSURE PLATINUM

Un procédé pour produire un signal d'horloge de pixel pour un scanner à laser et à dispositif de balayage rotatif à miroir permet de renvoyer un faisceau le long de l'axe (Z) du dispositif de balayage rotatif à un tambour support partiellement cylindrique séparé de l'axe par une distance donnée. Selon l'invention, on fait tourner le moteur (224) du dispositif de balayage rotatif à une vitesse constante, on prévoit des moyens de codage (228) au niveau du moteur et on code la vitesse angulaire du moteur pour créer une première fréquence avec une première résolution donnée, on divise (315) la première fréquence par une constante donnée (C) pour créer une seconde fréquence possédant une seconde résolution, on sélectionne la constante pour que la seconde résolution soit sensiblement supérieure à la première, et on utilise la seconde fréquence comme signal d'horloge de pixel pour transférer des données d'image à la source laser (26) pour former l'image sur un support à surface photosensible. A method for producing a pixel clock signal for a laser scanner and rotary mirror scanner returns a beam along the (Z) axis of the rotary scanner to a separate partially cylindrical support drum of the axis by a given distance. According to the invention, the motor (224) of the rotary scanning device is rotated at a constant speed, encoding means (228) are provided at the level of the motor and the angular speed of the motor is encoded to create a first frequency with a first given resolution, we divide (315) the first frequency by a given constant (C) to create a second frequency having a second resolution, we select the constant so that the second resolution is appreciably greater than the first, and we use the second frequency as a pixel clock signal for transferring image data to the laser source (26) to form the image on a photosensitive surface medium.

DRUM FOR PHOTOTRACER AND METHODS FOR MANUFACTURING AND ALIGNING IT.

L'invention concerne un tambour pour phototraceur. Le tambour (4) comporte une base dans laquelle est formé un évidement partiellement cylindrique (7), qui est défini en partie par plusieurs surfaces en saillie créant un appui sur lequel est disposée une feuille de matière (33) créant une surface exposée (S) pour supporter un substrat; ce tambour est formé par un procédé selon lequel un outil sur lequel est disposée la feuille de matière est amené au contact de l'appui précité et est obligé de conserver sa forme à l'aide d'un adhésif interposé entre les deux éléments; l'invention concerne également un procédé de compensation mécanique d'irrégularités de surface au moyen d'une adaptation de l'analyseur du phototraceur par rapport à la surface portante (S) après que des réglages ont été effectués. The invention relates to a drum for a photoplotter. The drum (4) has a base in which is formed a partially cylindrical recess (7), which is defined in part by several protruding surfaces creating a support on which is disposed a sheet of material (33) creating an exposed surface (S ) to support a substrate; this drum is formed by a process according to which a tool on which the sheet of material is placed is brought into contact with the aforementioned support and is obliged to retain its shape using an adhesive interposed between the two elements; the invention also relates to a method of mechanically compensating for surface irregularities by means of an adaptation of the analyzer of the photoplotter relative to the bearing surface (S) after adjustments have been made.

HIGH RESOLUTION IMAGE RESTITUER AUTHORIZING THE REAL-TIME DEVELOPMENT OF INSOLATED FILMS

RESTITUTEUR D'IMAGES DE HAUTE RESOLUTION COMPRENANT UN PORTE-FILM 10 POUR RECEVOIR UN FILM PLAN REVETU D'UNE MATIERE PHOTOSENSIBLE, UNE SOURCE LUMINEUSE 22 PRODUISANT UN FAISCEAU 18 LUMINEUX, UN MODULATEUR 28 SUR LE TRAJET DU FAISCEAU LUMINEUX ET UN DISPOSITIF 16, 14 POUR BALAYER PAR LIGNES SUCCESSIVES 42 LEDIT FILM AU MOYEN DUDIT FAISCEAU 20, CARACTERISE EN CE QU'IL COMPREND DES MOYENS AMOVIBLES 48 POUR RECEVOIR UNE BOBINE 46 DEBITRICE DE FILM 44 ENROULE EN CONTINU, DES MOYENS 54 POUR ENTRAINER LE FILM HORS DE LA BOBINE LE LONG D'UN PLAN D'APPROVISIONNEMENT 52 DE FILM, DES MOYENS 60 POUR PLAQUER UNE PORTION DE FILM SUR LE PORTE-FILM 10, DES MOYENS DE DECOUPE TRANSVERSALE 62 DU FILM, DES MOYENS D'ENTRAINEMENT 70, 74 DU FILM HORS DU PORTE-FILM LE LONG D'UN PLAN D'EVACUATION 72, DES MOYENS AMOVIBLES 76 POUR RECEVOIR LES PORTIONS DE FILM EXPOSEES ET DECOUPEES EVACUEES DU PORTE-FILM 12. HIGH-RESOLUTION IMAGE RESTORER INCLUDING A FILM HOLDER 10 FOR RECEIVING A PLAN FILM COATED WITH A PHOTOSENSITIVE MATERIAL, A LIGHT SOURCE 22 PRODUCING A LIGHT BEAM 18, A MODULATOR 28 ON THE PATH OF THE LIGHT BEAM, 14 AND A DEVICE 16 TO SCAN BY SUCCESSIVE LINES 42 LEDIT FILM BY MEANS OF SAID BEAM 20, CHARACTERIZED IN THAT IT INCLUDES REMOVABLE MEANS 48 FOR RECEIVING A REEL 46 FILM DEBTOR 44 CONTINUOUSLY WINDING, MEANS 54 FOR DRIVING THE FILM OUT OF THE ALONG A FILM SUPPLY PLAN 52, MEANS 60 FOR PLACING A PORTION OF FILM ON THE FILM HOLDER 10, CROSS CUTTING MEANS 62 OF THE FILM, DRIVING MEANS 70, 74 OF THE FILM OUT OF THE DOOR -FILM ALONG AN EVACUATION PLAN 72, REMOVABLE MEANS 76 FOR RECEIVING THE EXPOSED AND CUT PORTIONS OF FILM EVACUATED FROM THE FILM HOLDER 12.

DRUM FOR PHOTOTRACER AND METHODS OF MANUFACTURING AND ALIGNING THE SAME.

Printing plate exposure device utilizing inclination distortion negating signal

IMAGING DEVICE AND APPARATUS FOR HANDLING IMAGING MEDIA

La présente invention réalise un appareil de photo-traçage (10). Il comprend d'une part un traceur (12) à tambour interne, destiné à exposer un support d'imagerie photosensible (26), comprenant: un tambour (22) à surface intérieure définissant une chambre d'exposition (23); une source de rayonnement (34) pour engendrer un rayonnement et le diriger d'une façon réglable et un moyen (54, 64, 67) destiné à éliminer sensiblement les turbulences engendrées dans la chambre. Il comprend aussi un appareil (14) de maniement de supports d'imagerie, pour déplacer en séquence à partir d'une pile la feuille supérieure de support d'imagerie. La pile inclut des intercalaires entre feuilles. L'appareil comprend un moyen de pincement pour venir au contact du bord avant de la feuille supérieure (26) et d'une intercalaire, un moyen de saisie articulé (163) pour dégager du moyen de pincement le bord avant, le soulever et soulever le bord arrière; un moyen de direction d'un écoulement d'air comprimé et un moyen destiné à enlever de la pile l'intercalaire. The present invention provides a photo-tracing apparatus (10). It comprises on the one hand a plotter (12) with an internal drum, intended to expose a photosensitive imaging medium (26), comprising: a drum (22) with an internal surface defining an exposure chamber (23); a radiation source (34) for generating and directing radiation in an adjustable manner; and means (54, 64, 67) for substantially eliminating the turbulence generated in the chamber. It also includes an imaging media handling apparatus (14) for sequentially moving the top sheet of imaging media from a stack. The stack includes dividers between sheets. The apparatus includes pinching means for contacting the leading edge of the topsheet (26) and a spacer, hinged grasping means (163) for disengaging the leading edge from the pinching means, lifting and lifting it. the rear edge; means for directing a flow of compressed air and ...

Multiple beam scanning system for an imaging device

A multiple beam scanning system for an imaging device, such as a photoplotter and scanner, includes a plurality of scanning assemblies slidably coupled to a spar that extends the length and parallel to the longitudinal axis of a scanning surface of an internal drum. The scanning assemblies simultaneously reflect a plurality of optical beam to or from a plate of media disposed on the scanning surface. A photoplotter includes a plurality of independently controlled optical beam generators that emit an optical beam to a corresponding scanning assembly which then reflects the optical beams to the media. A scanner includes a plurality of optical beam receivers that generate imaging signals indicative of the optical beam reflected from the media by each corresponding scanning assembly. The optical beam generators and receivers may be disposed at one end of the internal drum. This embodiment requires the rearward scanning assembly include an optical periscope for reflecting the optical beam parallel to the longitudinal axis of the internal drum. A controller generates independent drive signals to move each of the scanning assemblies along the spar at a preferred rate for scanning the media. For a photoplotter, the controller also provides modulating signals representative of the image to be scanned to each of the beam generators.

MULTI-BEAM SCAN SYSTEM FOR AN IMAGING DEVICE

L'invention concerne un système de balayage de supports, à faisceaux multiples, comme un photo-traceur et un dispositif de balayage ou analyseur ; des générateurs (21, 22) de faisceaux optiques (28, 30) ; des ensembles de balayage (32, 33) , accouplés de façon mobile à des surfaces d'un longeron, et réfléchissant les faisceaux vers les supports ; des excitateurs de moteurs (37, 37) pour chaque ensemble et un dispositif de commande. Pour un photo-traceur, ce dernier comprend : deux moyens de réception de signaux pour un signal d'erreur de position de supports et pour des signaux d'emplacement d'un ensemble sur le longeron ; et, pour chaque excitateur ; deux moyens de génération de signaux pour déplacer indépendamment chaque ensemble ; et un moyen d'envoi de signaux d'une image à balayer. A multi-beam media scanning system such as a photo-tracer and a scanning device or analyzer; generators (21, 22) of optical beams (28, 30); scanning assemblies (32, 33), movably coupled to surfaces of a spar, and reflecting the beams to the supports; motor exciters (37, 37) for each assembly and a controller. For a photo-plotter, the latter comprises: two means for receiving signals for a support position error signal and for signals for the location of an assembly on the spar; and, for each exciter; two signal generating means for independently moving each set; and means for sending signals of an image to be scanned.

Improvements to devices for image transmission

METHOD AND APPARATUS FOR INCREASING THE PRECISION OF SCANNERS.

Un appareil pour améliorer la précision de systèmes optiques tels que des phototraceurs à tambour interne (10) inclut un dispositif à balayage par trame (22) sensible à des signaux de commande pour créer une ligne de balayage et pour faire avancer de manière coopérante par rapport au substrat le faisceau optique (24) suivant une seconde direction sensiblement perpendiculaire à la première direction. Un générateur de signal produit un signal d'horloge qui commande l'avancement du faisceau optique (24) suivant une première direction. Une mémoire stocke des signaux d'erreur indicatifs de déviations de la surface incurvée par rapport à une valeur de courbure qui a la préférence. L'appareil est caractérisé par un contrôleur (26) qui génère des signaux de commande en fonction des signaux d'erreur de telle sorte que la phase du signal d'horloge soit ajustée d'où la suppression de l'erreur de courbure pour un segment de la ligne de balayage.

Improvements to devices for image transmission

AIR CUSHION MOVEMENT DEVICE, MAGNETICALLY PRELOADED, FOR IMAGING DEVICE

Un dispositif de déplacement sur coussin d'air, préchargé magnétiquement, destiné à un système de mouvement d'un système d'imagerie inclut un chariot (30) pour déplacer un moyen de balayage (26) le long d'une poutre rigide (38) pour réfléchir sur un support (18) un faisceau optique d'amenée. Le chariot (30) inclut une paire de parois orthogonales (72, 72) pour venir en prise avec les surfaces orthogonales de la poutre, et un système de coussin d'air (120, 122) y est agencé. Le coussin d'air (120, 122) inclut une série d'aimants permanents (128) fixés selon une configuration prédéterminée aux surfaces orthogonales (72, 72) du chariot (30) de manière à exercer une force d'attraction pour accoupler le chariot à la poutre (38). Le chariot (30) inclut en outre une série de passages (82), qui se terminent à une série d'orifices de sortie (84) agencés selon une configuration prédéterminée sur les surfaces orthogonales du chariot. Un système d'air comprimé est connecté électriquement au moteur linéaire (42) pour commander le déplacement du chariot (30) le long de la poutre (38). A magnetically preloaded air cushion displacement device for an imaging system motion system includes a cart (30) for moving a scanning means (26) along a rigid beam (38 ) to reflect on a support (18) an optical feed beam. The carriage (30) includes a pair of orthogonal walls (72, 72) for engaging the orthogonal surfaces of the beam, and an air cushion system (120, 122) is arranged therein. The air cushion (120, 122) includes a series of permanent magnets (128) fixed in a predetermined configuration to the orthogonal surfaces (72, 72) of the carriage (30) so as to exert an attractive force to couple the beam carriage (38). The carriage (30) further includes a series of passages (82), which terminate at a series of outlet ports (84) arranged in a predetermined configuration on the orthogonal surfaces of the carriage. A compressed air system is electrically ...

PHOTOCOMPOSITION APPARATUS

LA PRESENTE INVENTION CONCERNE UN APPAREIL DE PHOTOCOMPOSITION. IL COMPREND UN SEGMENT CYLINDRIQUE CIRCULAIRE 11 EN ALUMINIUM A L'INTERIEUR DUQUEL ON DISPOSE UNE MATIERE PHOTOGRAPHIQUE EN FEUILLE 12 AVEC LA COUCHE PHOTOGRAPHIQUE VERS L'INTERIEUR. UN MIROIR TOURNANT DISPOSE SUR UN CHARIOT EST ALIMENTE AXIALEMENT PAR UN FAISCEAU LASER ET BALAIE LA MATIERE PHOTOGRAPHIQUE 12 DANS LA DIRECTION PERIPHERIQUE, TANDIS QUE LE CHARIOT EST AVANCE AXIALEMENT. LA MATIERE PHOTOGRAPHIQUE 12 EST DISPOSEE SUR TOUTE SA SURFACE SUR LE COTE INTERNE DU SEGMENT CYLINDRIQUE 11 PAR COMPRESSION DANS LA DIRECTION PERIPHERIQUE. LA MATIERE PHOTOGRAPHIQUE 12 EST GUIDEE A L'INTERIEUR DU SEGMENT CYLINDRIQUE 11 PAR DEUX BAGUES DE GUIDAGE 23 PLACEES A DES DISTANCES DIFFERENTES. APPLICATION A LA PHOTOCOMPOSITION SUR DU MATERIEL PHOTOGRAPHIQUE DE FORMATS DIFFERENTS.

Optical scanner with polarisation switch and position encoder

L'invention concerne un dispositif d'entraînement en rotation pour l'exécution d'un balayage double, destiné à être utilisé dans des systèmes de scanners. Ce système (10) comporte un dispositif de balayage de trame (22) pour déplacer un faisceau optique sur un substrat (21), et un dispositif (81) pour commuter la polarisation du faisceau entre deux directions sur la base de signaux de commande établis à partir d'un codeur (28) et d'un dispositif de commande (26), le système comportant un dispositif d'entraînement en rotation (34) servant à réaliser la commutation de polarisation. Application notamment aux traceurs photosensibles à balayage de trame.

Method and device for ultra-fast remote reproduction by facsimile

Image recording device

Internal-surface-scanning image recording apparatus

A laser beam (L) emitted from a laser beam generator (18) is modulated by a laser beam modulator (40) depending on an image to be recorded, and then guided by a reflecting area (48) or a transmitting area (50) of a laser beam switcher (42) towards one of the reflecting surfaces (20,22) of two spinners (14,16). The laser beam (L) is then reflected thereby toward a recording medium (F) attached to an inner circumferential surface of a semicylindrical drum (12). The spinners (14,16) alternately scan the recording medium (F) with the laser beam (L) while they are being displaced axially in the semicylindrical drum (12), so that a two-dimensional image can efficiently be recorded on the recording medium (F).

Patent FR2486263B1

Correcting method of light beam position in a scanning apparatus

A method for correcting recording positions of light beams scanned by a light beam scanning apparatus, in which at least one of plural light beams is deflected by an optical deflecting device and all the plural light beams are combined and scanned by a common scanning optical system. The beam position correction data for the optical deflecting device for keeping positions of the light beams constant is obtained by detecting the beam positions before the scanning optical system. The recording positions of respective light beams on a recording surface is also detected to obtain an additional correction data for correcting deviations of the recording positions due to uneven optical power distribution of the light beam or astigmatism of the scanning optical system. The additional correction data is added to the beam position correction data to obtain the final correction data, by which the optical deflecting device is controlled.

PHOTOCOMPOSITION APPARATUS

Printing plate exposure apparatus using inclination skew cancellation signal

컴퓨터로부터의 화상정보를 드럼에 감은 인쇄용 쇄판에 복수 화소의 밴드폭으로 나선형으로 기록하는 경우에, 기록화상이 쇄판에 대해서 경사하는 비뚤어짐을 해소하는 것을 과제로 한다. 드럼에 정원통(正圓筒)형으로 감겨진 인쇄용 쇄판과, 이 쇄판에 광빔에 의해 화상정보를 밴드형상으로 기록하는 노광기와, 드럼이 1회전하는 동안에 상기한 노광기를 드럼에 대해서 드럼 축방향으로 1밴드폭만큼 상대적으로 이동시키는 이동기구와, 밴드의 기록개시를 시점으로서 드럼의 회전주기와 동일한 주기의 톱니파상(波狀)의 경사비뚤어짐 취소(打消)신호를 발생시키는 회로로 구성하고, 이 경사비뚤어짐 취소신호를 상기한 노광기에 인가해서 드럼 1회전동안에 광빔을 1밴드폭 어긋날 때까지 상기한 이동기구의 이동방향과 역방향으로 순차적으로 편향시켜 간다. In the case of spirally recording image information from a computer on a printing board wound on a drum with a band width of a plurality of pixels, it is a problem to eliminate the skew of the recording image with respect to the printing board. A printing plate wound on a drum in a drum shape, an exposure unit for recording image information in a band shape by a light beam on the printing plate, and the exposure unit described above while the drum rotates one drum in the drum axial direction. And a circuit for generating a sawtooth wave skew cancellation signal having the same period as the drum's rotation period as the starting point of recording the band. The tilt skew cancellation signal is applied to the above-described exposure machine to sequentially deflect the light beam in the opposite direction to the moving direction of the moving mechanism until the light beam is shifted by one band during one drum rotation.

Apparatus for moving a radiation beam across a medium

The invention relates to an apparatus for moving a radiation beam across a medium printable using a radiation beam. The apparatus comprises means (12, 14) for rotating a radiation beam (18) around an axis normal to the length of the beam (18) and a holder (16) having a zone across which the beam (18) moves as the beam (18) is rotated. The holder (16) holds the medium (8), as the medium (8) moves through the holder (16), such that the medium (8) simultaneously has a portion having a linear configuration in a direction normal to the direction of movement of the medium, prior to the zone and a portion having a curved configuration in a direction normal to the direction of movement of the medium, at the zone. In one embodiment, shown in Figure 1, the linear portion is located at a roll (32) of the medium (8) and the curved portion is configured by guides (22) and a former (24). The curvature of the curved portion is such that the beam (18) intersects the curved portion along an arc co-axial with the axis as the beam (18) moves across the zone, the portions being connected by a transitional portion of the medium (8) without creases.

Writing apparatuses and methods

Patterns are written on workpieces, such as, glass sheets and/or plastic sheets used in, for example, electronic display devices such as LCDs. The workpiece may be larger than about 1500 mm may be used. An optical writing head with a plurality of writing units may be used. The workpiece and the writing head may be moved relative to one another to provide oblique writing.

Method for manufacturing a drum assembly for an internal drum imaging device and a drum assembly

Facsimile line skipping apparatus

Acousto-optic element light deflector light beam scanning apparatus and image recording apparatus

An xyz coordinate system is determined so that a z-axis may coincide with an incident direction of an incident light, an x-axis may coincide with a polarizing direction of the incident light and a y-axis may be defined as the right-handed system from the z-axis and x-axis. An acousto-optic element is rotated around the z-axis, around the axis in a direction of propagation of an ultrasonic wave and around an axis B perpendicular to a plane formed by the z-axis and the direction of propagation of the ultrasonic wave, so that the attitude of the acousto-optic element to the incident light is adjusted.

Facsimile transmitter-receiver comprising light source and photoelectric device aligned with axis of rotation of photo-sensing and recording disk

An original picture and a recording paper are fed in side by side relation along the axis of a photo-sensing and recording rotatable disk with a predetermined gap left between the sheetlike members and the periphery of the disk. A light source and a photoelectric device are aligned with the axis. A light conductive device directs the light to one or more points predetermined relative to the periphery and from the points to the photoelectric device to provide the photo-sensing device.

OPTO-ELECTRONIC DOCUMENT ANALYSIS DEVICE, AND FACSIMILE TRANSMISSION SYSTEM USING SUCH A DEVICE

La présente invention concerne les dispositifs d'analyse optoélectronique de document Elle consiste essentiellement dans des dispositifs optiques et mécaniques permettant de maintenir en position fixe le document à télécopier, 1, pendant son analyse point par point effectuée sur une ligne par exploration à l'aide d'un miroir tournant, 3, en relation avec un groupe opto-électronique 7, tous deux montés sur un chariot 4 animé d'un mouvement de translation par pas élémentaire à chaque changement de ligne. Application aux systèmes de transmission par fac-similé. The present invention relates to optoelectronic document analysis devices. It essentially consists of optical and mechanical devices making it possible to maintain the document to be faxed in a fixed position, 1, during its point-by-point analysis carried out on a line by scanning using a rotating mirror, 3, in connection with an opto-electronic unit 7, both mounted on a carriage 4 driven by a translational movement in elementary steps at each change of line. Application to facsimile transmission systems.

Apparatus for routing hoses and cables in an imaging system

A hose and cable routing system for routing and flexing a coolant supply hose (52), a coolant return hose (54), and an electrical cable (60) to a laser system (36) mounted on a movable optical carriage (38) in an imaging system (10) without introducing mechanical disturbances to the optical carriage (38). The hose and cable routing system includes a support tray (122), mounted to the imaging system (10), for supporting the coolant hoses (52, 54) and electrical cable (60), and a movable support bracket (76) for supporting and running the coolant hoses (52, 54) and electrical cable (60) from the support tray (122) to the optical carriage (38). A track (84) is provided to guide the movable support bracket (76) along the imaging system in response to a displacement of the optical carriage (38). A vibration isolator (102) is mounted between the support bracket (76) and the optical carriage (38). Other embodiments of the hose and cable routing system are also disclosed.

Method and apparatus for recording latent photographic images

Method and apparatus for inner face scanning with multi beams

There is proposed a method and apparatus for multibeam scanning an inner face of a cylindrical drum, in which scanning lines are straightened under a simple control, and an interval between the scanning lines can be easily changed, thereby simplifying a constitution. In an embodiment, while keeping an interval between two light beams projected to an optical scanning system, the light beams are one-dimensionally deflected in mutually orthogonal directions in synchronism with a rotation of the spinner, respectively. In a second embodiment, one light beam is projected along a central axis common with the spinner and the cylindrical drum to the spinner. The other light beams are inclined in a plane including the central axis by a constant angle  y separately predetermined for each of the other light beams, and further inclined in a direction orthogonal to the plane including a rotation axis by an angle  x which is determined in synchronism with a rotation angle  of the spinner.

Method and apparatus for image nonlinearity compensation in scanning systems

A method and apparatus for use in improving the accuracy of scanning systems is disclosed and claimed. Systems such as internal drum photoplotters include a raster scanner responsive to control signals for advancing relative to a substrate an optical beam across a substrate surface in a first direction forming a scan line of pixels and for cooperatively advancing relative to the substrate the optical beam in a second direction substantially perpendicular to the first direction. The clock signal which is provided to a spinner to advance the optical beam across the scan line is independent from the pixel clock signal which is provided to control the generation of pixels. There is a memory for storing error compensation signals indicative of compensation needed to remove deviations of the separation between adjacent pixels in said scan line from preferred values thereof. The apparatus is characterized by a controller for generating control signals in dependence on the error compensation signals such that the phase of the clock signal is adjusted, thereby removing the pixel separation error for a segment of the scan line.

Housing structure, optical scanning device, and image forming apparatus

Transporting photosensitive media

Apparatus and method for enhancing printing efficiency to reduce artifacts

Apparatus and methods for exposing multilayered thermal imaging media to eliminate "cloud" or "woodgrain" artifacts by proper optimization of the exposing radiation angle of incidence. The exposure angle of incidence is large enough so that all rays with high reflectance loss are paired with equally many with low reflectance loss to increase printing efficiency.

EXPOSURE INSTALLATION WITH INTERNAL DRUM

1. Экспонирующая установка с внутренним барабаном для переноса данных на носители информации в виде пластин, содержащий приемное средство для размещения носителей информации, и передающая головку по меньшей мере с одним средством связи для переноса данных на носитель информации, причем приемное средство по меньшей мере частично выполнено в форме цилиндра, а сторона носителя информации, предусмотренная для записи данных, обращена к оси цилиндра приемного средства, причем приемное средство и передающая головка установлены с возможностью перемещения относительно друг друга таким образом, чтобы передающая головка могла перемещаться в направлении оси цилиндра приемного средства и вращаться вокруг нее, а средство связи выполнено в виде лазерных диодов, отличающаяся тем, что лазерные диоды, являются мощными лазерными диодами, использующими ультрафиолетовое излучение с длиной волны 405 нм, и скомпонованы в виде легко заменяемой компоновки лазерных диодов. ! 2. Экспонирующая установка с внутренним барабаном по п.1, отличающаяся тем, что лазерные диоды обладают мощностью по меньшей мере 100 МВт, предпочтительно, по меньшей мере 140 МВт. ! 3. Экспонирующая установка с внутренним барабаном по п.1 или 2, отличающаяся тем, что передающая головка имеет оптическую систему, пригодную для передачи на длине волны 405 нм или пригодную также для передачи наряду на длине волны 405 нм и на других длинах волн. ! 4. Экспонирующая установка с внутренним барабаном по п.1, отличающаяся тем, что передающая головка имеет две оптические системы, причем одна из этих оптических систем приспособлена для передачи на длине волны 405 нм. ! 5. Экспонирующа� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 141 705 (13) A (51) МПК H04N 1/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008141705/02, 19.03.2007 (71) Заявитель(и): ЭКСПОУЗ ХОЛДИНГ АГ (CH) (30) Конвенционный приоритет: 21.03.2006 CH 438/06 (43) Дата публикации ...

Method and apparatus for improving a computed radiography image

An optical system for an internal drum readout apparatus is disclosed. The optical system includes a hollow cylindrical segment defining a central axis, a support structure configured and adapted to translate along the central axis, a mirror mounted on the support structure for translational movement therewith and for rotational spinning around the central axis, a light source mounted to the support structure for providing a beam capable of being directed along the central axis which in turn is directed against the medium thereby producing a stimulated light, a detector coaxially aligned with the central axis, the detector being configured and adapted to absorb stimulated light direct toward and reflected off of the angled mirror, and a shroud mounted on the support structure for blocking stimulated light not directed toward the angled mirror, wherein the stimulated light not directed toward the angled mirror would otherwise degrade the medium prematurely.

Scanning apparatus and method

ABSTRACT The invention relates to a scanning device for reading and/or writing using a laser beam. A drum (243) includes a rotatable shaft (102) carrying optical elements (120) which are moved rotationally and translationally to cause a laser beam to scan sheet material lying around the surface of a cylinder coaxial with the shaft. A sheet to be scanned is placed on a flexible transport (150) while flat and then the transport is fed into the drum until a surface of the transport is in intimate contact with a location wall (243) of the drum. A bed (191) supports the flat transport outside the drum and there is a support (211,212) for supporting a transport above the bed together with positioning means (200) for the bed and support either for driving a transport on the bed into the drum or for driving a transport in the drum onto the support. The shaft (102) is rotatable in a housing (101) on air journal bearings (100) and end thrusts are balanced by air thrust bearings defined between a wall (125) of a reaction air turbine for driving the shaft, and a wall (124) of a porous plate through which air for the bearing is supplied through a controllable restriction (1232,1233).

Method and apparatus for illumination of light-sensitive materials

The invention relates to a method of exposing films and other light-sensitive materials in a scanner. According to the invention, a first light beam is conducted from a light source with the wavelength .lambda.1 to a first exposure point on the light-sensitive material via an optical system comprising at least one input end and one output end as well as at least one optical rotating reflecting or transmitting element arranged relatively to the optical output end, wherein at least one additional light source generates an additional light beam with a wavelength .lambda.x which is different from .lambda.1, said additional light beam with the wavelength .lambda.x being conducted via the input end of the optical system to the output end of the optical system, so as to be geometrically coincident with the first light beam at the output end of the optical system, said additional light beam being conducted from there to an additional exposure point on the light-sensitive material inside the image setter drum in dependence on .lambda.x or the mutual difference between the wavelengths .DELTA..lambda., said light beams being conducted completely or partly from the input end of the optical system via one or more light guides, preferably optical fibres, to the output end of the optical system.

Positioning media sheets in exposing apparatus

Light scanning device and image formation apparatus provided therewith

本发明的光扫描装置具备：出射光束(L1)的第一半导体激光器(44a)；使光束(L1)偏向的多面反射镜(42)；对由多面反射镜(42)偏向后的光束(L1)进行反射以使其入射到感光鼓(13)的反射镜(64a)；和检测由多面反射镜(42)偏向后的光束(L1)的BD传感器(72)，利用光束(L1)扫描感光鼓(13)，根据BD传感器(72)检测到光束(L1)的检测时刻，设定光束(L1)扫描感光鼓(13)的扫描时刻，上述光扫描装置的特征在于：BD传感器(72)配置在与在即将入射到感光鼓(13)前对光束(L1)进行反射的最后级的反射镜(64a)相比远离多面反射镜(42)的位置，并且配置在与感光鼓(13)的有效扫描区域对应的光束(L1)的扫描角度范围(α)的内侧。

HIGH RESOLUTION IMAGE RESTITUER AUTHORIZING THE REAL-TIME DEVELOPMENT OF INSOLATED FILMS

Optical beam scanning apparatus

Device and Method for Processing Sheets, Particularly for Printing

A processing device for processing at least one curved passing sheet. The processing device comprises a processing assembly for applying processing to one or more passing sheets, and a feed assembly for passing the sheets by the processing assembly via a non-linear path.

Radiation imaging system with multiple light spot size and method

Inner drum exposure apparatus

An exposure process is executed by multi-beams divided by polarizing and combining laser beams (La, Lb) modulated based on an image signal so as to be emitted by a light source side optical system by using a polarized light beam splitter, and by converting the laser beams (La, Lb) emitted as right circular polarized light and left circular polarized light into mutually orthogonal linear polarized light by using a quarter wave plate arranged on a light path of a scanning portion, and thereafter transmitting through an optical element of uniaxial crystal. An appropriate image can be formed by setting a division width of beam spots on a scanning surface set by the optical element of uniaxial crystal such that scanning unevenness of an image formed on a scanning surface is within an allowable range even when changing resolution of the inner drum exposure apparatus.

PICTURE SET DEVICE

Magnetically preloaded air bearing motion system for an imaging device

A magnetically preloaded air bearing motion system for an imaging system motion system includes a carriage for moving a scanning means along a rigid spar for reflecting an optical feed beam onto media. The carriage includes a pair of orthogonal walls for engaging the orthogonal walls of the spar and an air bearing system disposed therein. The air bearing includes a plurality of permanent magnets secured in a prearranged pattern to the orthogonal walls of the carriage for providing an attractive force to couple the carriage to the spar. The carriage further includes a series of passageways terminating at a plurality of output orifices arranged in a predetermined pattern on the orthogonal walls of the carriage. Compressed air is system is electrically connected to the linear motor for controlling the movement of the carriage along the spar.

Internal drum scophony raster recording device

An optical recording and data processing system for exposing an image on to a flexible, light sensitive medium, which includes a medium holder having an inner cylindrical wall portion against which is held said medium, and a light source having an approximately rectangular emitting aperture, with a short aperture axis and a long aperture axis, operative to emit a beam of light having a rectangular cross section with a long axis corresponding to the long aperture axis and a short axis corresponding to the short aperture axis. An optical modulator is aligned with the light source so as to intercept light from the beam of light and produce a spatial modulation pattern across the long axis of the beam of light.

Light beam scanning device

Corona electrifying rotary head

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Original analyzer

Multibeam multi-wavelength internal drum recording apparatus

Internal drum recording apparatus provided with a rotating deflecting element, comprising two (or more) beams of different wavelenghts, which are simultaneously operatable, and optical elements for bringing the two or more beams to a common optical path before they reach the rotating deflecting element. The deflecting element may have dispersing properties such that beams of different wavelengths will leave it at slightly different angles. The beams of different wavelengths may be generated by laser diodes or tunable laser diodes. The apparatus may further comprise a beam combiner to combine the beams generated by the light sources.

High resolution image reproducer for real-time developing of insulated films

Restituteur d'images de haute résolution comprenant un porte film (10) pour recevoir un film plan revêtu d'une matière photosensible, une source lumineuse (22) produisant un faisceau (18) lumineux, un modulateur (28) sur le trajet du faisceau lumineux et un dispositif (16, 14) pour balayer par lignes successives (42) ledit film au moyen dudit faisceau (20), carctérisé en ce qu'il comprend des moyens amovibles (48) pour recevoir une bobine (46) débitrice de film (44) enroulé en continu, des moyens (54) pour entraîner le film hors de la bobine le long d'un plan d'approvisionnement (52) de film, des moyens (60) pour plaquer une portion de film sur le porte film (10), des moyens de découpe transversale (62) du film, des moyens d'entraînement (70, 74) du film hors du porte film le long d'un plan d'évacuation (72), des moyens amovibles (76) pour recevoir les portions de film exposées et découpées évacuées du porte film (12). High resolution image renderer comprising a film holder (10) for receiving a flat film coated with a photosensitive material, a light source (22) producing a light beam (18), a modulator (28) in the beam path luminous and a device (16, 14) for scanning in successive lines (42) said film by means of said beam (20), characterized in that it comprises removable means (48) for receiving a reel (46) supplying film (44) continuously wound, means (54) for driving the film out of the reel along a film supply plane (52), means (60) for pressing a portion of film on the film holder (10), transverse cutting means (62) of the film, drive means (70, 74) of the film out of the film holder along a discharge plane (72), removable means (76) to receive the exposed and cut film portions removed from the film holder (12).

Optical system for facsimile transmission of documents

Multi-beam scanner with acousto-optic element for scanning imaging surfaces

Picture transmission

Scanning apparatus with self-propelled linear motion carriage

A scanning apparatus is disclosed in an imagesetter with an internal drum recording surface, having an improved carriage system which is self-propelled and carries scanning optics for recording an image including a spin motor/mirror, a laser diode, and a focusing lens. The drive system is mounted to the carriage to allow the carriage to move linearly inside the drum as a self-propelled direct drive. An electronic control device mounted on the carriage provides precision motion control of the carriage.

Method and apparatus for synchronizing system operations using a programmable element

A method and apparatus for synchronizing the operation of multiple elements of a system to the motion of a movable element using a programmable element as the control element.

Scanning apparatus and method

The invention relates to a scanning device for reading and/ or writing using a laser beam. A drum (243) includes a rotatable shaft (102) carrying optical elements (120) which are moved rotationally and translationally to cause a laser beam to scan sheet material lying around the surface of a cylinder coaxial with the shaft. A sheet to be scanned is placed on a flexible transport (150) while flat and then the transport is fed into the drum until a surface of the transport is in intimate contact with a location wall (243) of the drum. A bed (191) supports the flat transport outsidethe drum and there is a support (211, 212) for supporting a transport above the bed together with positioning means (200) for the bed and support either for driving a transport on the bed into the drum or for driving a transport in the drum onto the support. The shaft (102) is rotatable in a housing (101) on air journal bearings (100) and end thrusts are balanced by air thrust bearings defined between a wall (125) of a reaction air turbine for driving the shaft, and a wall (124) of a porous plate through which air for the bearing is supplied through a controllable restriction (1232, 1233).

Inner scanning image recording apparatus

Image reproduction apparatus.

Optical scanning device having a spherical exit window

An optical scanning device, for reflecting a light beam produced by a laser light source, having an entrance window; a rotatable scan optic having a reflective surface and a spherical exit window; the reflective surface of the rotatable scan optic positioned adjacent the entrance window and central to the spherical exit window such that the light beam successively encounters the entrance window, the reflective surface of the rotatable scan optic, and the spherical exit window surrounding the reflective surface of the rotatable scan optic, the light beam encountering and passing through the spherical exit window after being reflected away from the rotatable scan optic; the reflective surface of the rotatable scan optic circumscribed by a chamber defined by the entrance window, the rotatable scan optic device, and the spherical exit window.

Device for conveying sheet-like material

Facsimile transceiver apparatus

1275950 Facsimile transceiver apparatus XEROX CORP 3 Sept 1969 [11 Sept 1968] 43640/69 Heading H4F In a facsimile transceiver documents or copy sheets are advanced through a semi-cylindrical passageway between inner and outer platen assemblies 500, 550, Fig. 2, past a rotating turret assembly 700 containing optical scanning means for generating electrical signals representing information on a document when the apparatus is in the transmitting mode and electrographic recording means for electrostatically charging a copy sheet according to a pattern dictated by incoming electrical signals in the receiving mode. For receiving mode operation a developing station 900 is provided to render the electrostatic pattern visible by means, for example, of iron filings mixed with electroscopic toner particles, and at a fusing station 950 the toner material is fused to the copy sheet. Electrographic processing.-The electrostatic pattern is supplied to the copy sheet by two diametrically opposed recording heads (708, 709), Fig. 14 (not shown), on the rotating turret 700. Each head includes a stylus (740) carrying a high voltage, which is movable into an operative position under the control of a solenoid (SOL 750) receiving the incoming electrical signals. After the complete copy sheet has been subjected to recording it is advanced to the developing station where it comes into brushing contact with the iron filings/toner mixer borne magnetically by a rotating drum 907, Fig. 11. The mixture is supplied to the drum 907 by two concentric helical screw conveyers 903, 905, and the desired magnetic field distribution about the drum 907 is obtained by means of fixed magnets 909, 909<SP>1</SP> within the drum 907. An electrically charged platen 916 behind the copy sheet ensures that the back ground of the sheet remains free of developer material. The copy sheet is next advanced between heated rollers 952, 954 covered with material 958 such as Teflon (Registered Trade Mark) to ...

Apparatus and method of creating a pixel clock for a scanner

Correcting method of light beam position in a scanning apparatus

Improvements to devices for image transmission

Multibeam multi-wavelength internal drum recording apparatus

Internal drum recording apparatus provided with a rotating deflecting element, comprising two (or more) beams of different wavelengths, which are simultaneously operatable, and optical elements for bringing the two or more beams to a common optical path before they reach the rotating deflecting element. The deflecting element may have dispersing properties such that beams of different wavelengths will leave it at slightly different angles. The beams of different wavelengths may be generated by laser diodes or tunable laser diodes. The apparatus may further comprise a beam combiner to combine the beams generated by the light sources.

Multi-beam scanner with mechanically moving element for scanning imaging surfaces

A multibeam scanning system (100) for scanning an imaging surface (165), includes at least one radiation emitter (105, 110) configured to emit a first beam of radiation and a second beam of radiation. A spin deflector (155), rotatable about a spin axis, is provided to direct the first beam to form a first scan line and the second beam to form a second scan line on the imaging surface. At least one moving element (180), such as a translating lens, disposed upstream of said spin deflector, operates to deflect at least one of the beams with respect to the spin axis of the spin deflector.

Printing and developing apparatus

Scanning apparatus

A simplified scanner for facsimile transmission. A cylindrical member supports the material to be scanned and a tubular member extends concentrically into the cylinder. A laser beam passes through the tubular member and is focused to a spot on the inner surface of the cylinder. Either the tubular member or the cylinder is caused to rotate about, and translate along, their common axis with the aid of air bearings. In this manner, spiral scanning is effected with only one moving member. The foregoing abstract is not to be taken either as a complete exposition or as a limitation of the present invention. In order to understand the full nature and extent of the technical disclosure of this application, reference must be had to the following detailed description and the accompanying drawings as well as to the claims.

Print head guiding device

Method and apparatus for imaging at a plurality of wavelenghts

INTERIOR RECORDING PLOTTER.

Image-recording apparatus and method

In order to can obtain parallelism of an image with respect to an image recording medium, there is provided an image-recording apparatus comprising a rotary body on which the recording medium has been wound, the image-recording section, which includes a plurality of light sources arranged in the sub-scanning direction, the image-recording section being capable of contemporaneously forming a plurality of main scanning lines on the recording medium in accordance with one cycle of main scanning, the recording medium having been pre-inclined with respect to the rotary body when being wound thereon, such that the main scanning lines formed on the recording medium are substantially parallel with one edge of the recording medium; and a control section which alters timing for forming the main scanning lines of each main scan on the basis of an angle at which the recording medium is wound with respect to the rotary body.

Device and method for compensating for inaccuracies in an optical scanning system

Multiple beam scanning system for an imaging device

Continuous sheet facsimile system

Document scanner

Methods and apparatus for pulsed radiation image acquisition

A method of acquiring at least one image from an image recording medium using a pulsed radiation source is provided. In one aspect, a method of scanning an image recording medium that has been exposed to X-ray radiation comprises providing first radiation along a plurality of scan traces over a surface of the image recording medium such that the first radiation does not impinge on the image recording over at least one interval along each of the plurality of scan traces. The pulsed laser source may reduce and/or eliminate cross-influence artifacts in images resulting from pulsed radiation image acquisition.

Writing apparatuses and methods

Patterns are written on workpieces, such as, glass sheets and/or plastic sheets used in, for example, electronic display devices such as LCDs. The workpiece may be larger than about 1500 mm may be used. An optical writing head with a plurality of writing units may be used. The workpiece and the writing head may be moved relative to one another to provide oblique writing.

Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method

An assembly for transferring information to and/or from flexible sheet media in a highly advantageous curved configuration is disclosed. The sheet material includes a length and a width defining first and second opposing surfaces. The assembly includes support means for supporting the sheet the curved configuration across its width, having the first surface inwardly oriented with respect to the curved configuration. Thereafter, moving means moves the flexible sheet material so supported in a direction along a read/write path generally parallel to the sheet material length and transverse to the direction of curvature. A read/write arrangement is provided which is configured for reading and/or writing information across the width of the first surface of the sheet as the sheet is moved along the path in the curved configuration. In one feature, means is provided for rotationally moving the read/write arrangement in a predetermined way in the housing such that the read/write arrangement is in a confronting relationship with the first, inwardly oriented surface and cooperates with the movement provided by the sheet material moving means so as to cause the read/write arrangement to sequentially read information from and/or write information to the inwardly oriented, first surface of the sheet as the read/write arrangement traverses the width of the flexible sheet material while the latter is on the read/write path in the curved configuration. In another feature, a read and/or write operation may be performed on the second, outwardly oriented surface of the sheet material.