Printing system with receiver capacitance estimation

A printing system includes a rotatable transport member that transports a receiver on its obverse. A tackdown unit includes an electrode arranged facing the reverse of the transport member. A source responsive to the control system produces a tackdown current, and a charger spaced apart from the transport member facing the obverse thereof selectively deposits charge on the receiver in response to the tackdown current. A non-contact voltmeter arranged facing the receiver on the obverse after the charger measures a resulting voltage. A control system drives a selected voltage or current through the charger using the source and measures a resulting voltage using the non-contact voltmeter. The selected voltage or current and the measured resulting voltage are used to automatically estimate a capacitance of the receiver.

PRODUCING RAISED PRINT USING LIGHT TONER

A method for producing a raised print on a receiver includes receiving image data and height data. The height data specify that raised printing should be produced in non-first-color region of the image data. Separation data are determined for a clear toner, a light toner having the first color, and at least two additional colored toners. The separation data for the clear toner is determined in response to the height data and the separation data for the light toner is determined in response to the image data and the height data so that the clear and light-toner separations specify that respective toners be deposited one atop the other in the non-first-color region. Respective toner images are deposited on the receiver, each corresponding to respective separation data. The deposited toner is fixed to the receiver member. 1. A method for producing a raised print on a receiver , the method comprising:selecting a light toner having a first color;receiving image data and height data for an image to be printed, the image data including a non-first-color region and the height data specifying that raised printing should be produced in the non-first-color region; 'wherein the clear toner has a volume-weighted median diameter ranging between 15 and 30 μm, the light toner has a volume-weighted median diameter ranging between 12 and 20 μm, and the at least two additional colored toners have respective volume-weighted median diameters between 3 μm and 12 μm;', 'using a processor, automatically determining separation data for a clear toner, the light toner, and at least two additional colored toners, wherein the separation data for the clear toner is determined in response to the height data and the separation data for the light toner is determined in response to the image data and the height data so that the toner separation data specify that clear and light toners be deposited one atop the other in the non-first-color region,'}using an electrophotographic printer, depositing ...

PRODUCING RAISED PRINT USING YELLOW TONER

A method for producing a raised print on a receiver includes receiving image data and height data. The height data specify that raised printing should be produced in non-yellow region of the image data. Separation data are determined for a clear toner, a yellow toner, and at least two additional colored toners. The separation data for the clear toner is determined in response to the height data and the separation data for the yellow toner is determined in response to the image data and the height data so that the clear and yellow separations specify that respective toners be deposited one atop the other in the non-yellow region. Respective toner images are deposited on the receiver, each corresponding to respective separation data. The deposited toner is fixed to the receiver member. 1. A method for producing a raised print on a receiver , the method comprising:receiving image data and height data for an image to be printed, the image data including a non-yellow region and the height data specifying that raised printing should be produced in the non-yellow region; 'wherein the clear toner has a volume-weighted median diameter ranging between 15 and 30 μm, the yellow toner having a volume-weighted median diameter ranging between 12 and 20 μm, and the at least two additional colored toners have respective volume-weighted median diameters between 3 μm and 12 μm;', 'using a processor, automatically determining separation data for a clear toner, a yellow toner, and at least two additional colored toners, wherein the separation data for the clear toner is determined in response to the height data and the separation data for the yellow toner is determined in response to the image data and the height data so that the separation data specify that the clear and the yellow toners be deposited one atop the other in the non-yellow region,'}using an electrophotographic printer, depositing respective developed toner images on the receiver using respective printing modules, each ...

TRANSFER UNIT WITH COMPENSATION FOR VARIATION

A transfer unit includes a rotatable static-dissipative member with a time-varying electrical property. A second member selectively transfers toner to or from the static-dissipative member. A power source selectively produces an electrostatic transfer field between the static-dissipative member and the second member, so that toner is transferred between the static-dissipative member and the second member. A charger spaced apart from the static-dissipative member selectively deposits charge thereon. A control system successively drives a plurality of different selected voltages or currents through the charger and measures a plurality of respective resulting charger currents or voltages. It uses the selected voltages or currents and the respective charger currents or voltages to automatically estimate a variation in the electrical property. It then causes the power source to produce an electric transfer field that transfers toner and compensates for the estimated variation. 1. A transfer unit , comprising:a) a rotatable static-dissipative member having a time-varying electrical property;b) a second member adapted to transfer toner to or from the static-dissipative member;c) a control system;d) a power source responsive to the control system for selectively producing an electrostatic transfer field between the static-dissipative member and the second member, so that toner is transferred between the static-dissipative member and the second member; ande) a charger spaced apart from the static-dissipative member and adapted to selectively deposit charge thereon in response to the control system; i) successively drive a plurality of different selected voltages or currents through the charger and measure a plurality of respective resulting charger currents or voltages;', 'ii) using the selected voltages or currents and the respective charger currents or voltages, automatically estimate a variation in the electrical property; and', 'iii) cause the power source to produce an ...

Reconditioning rotatable photoreceptor in electrophotographic printer

An electrophotographic photoreceptor is prepared for charging. Corona electrodes before and after the erase lamp apply respective biases to provide the correct sign of charge for cleaning, and to discharged trapped charges in the photoreceptor. Toner is then cleaned off the photoreceptor. This leaves the photoreceptor electrically and mechanically reconditioned and ready for its next printing cycle.

PRINTING IMPROVED TACTILE IMAGES USING INTERMEDIATE TRANSFER MEMBER

A method of forming an electrophotographic image having raised information providing a distinct tactile feel. One or more layers of marking particles are formed on an intermediate transfer member using an electrophotographic process responsive to visible image data. A layer of non-marking particles is then formed over the layers of marking particles responsive to tactile image data, wherein a volume average diameter of the non-marking particles is between 150% and 200% of the volume average diameter of the marking particles. The formed layers of marking particles and non-marking particles are then transferred onto a receiver medium so that the non-marking particles are in direct contact with the receiver medium. The transferred layers of non-marking particles and marking particles are then fused onto the receiver medium, wherein the layer of fused non-marking particles has a maximum thickness of at least 20 μm to provide the distinct tactile feel. 1. A method of forming an electrophotographic image on a receiver medium having raised information providing a distinct tactile feel , comprising:forming one or more layers of marking particles on a surface of an intermediate transfer member using an electrophotographic process responsive to visible image data,forming a layer of non-marking particles over the one or more layers of marking particles on the surface of the intermediate transfer member using an electrophotographic process responsive to tactile image data, wherein a volume average diameter of the non-marking particles is at least 150% of a volume average diameter of the marking particles and is no more than 200% of the volume average diameter of the marking particles;transferring the formed layers of marking particles and non-marking particles from the intermediate transfer member onto the receiver medium so that the non-marking particles are in direct contact with the receiver medium; andfusing the transferred layers of marking particles and non-marking ...

RECONDITIONING ROTATABLE PHOTORECEPTOR IN ELECTROPHOTOGRAPHIC PRINTER

An electrophotographic photoreceptor is prepared for charging. Corona electrodes before and after the erase lamp apply respective biases to provide the correct sign of charge for cleaning, and to discharged trapped charges in the photoreceptor. Toner is then cleaned off the photoreceptor. This leaves the photoreceptor electrically and mechanically reconditioned and ready for its next printing cycle. 1. A method of preparing a rotatable photoreceptor in an electrophotographic (EP) printer , comprising:providing the EP printer having the rotatable photoreceptor;providing a charger, an exposure subsystem, a development station, a transfer station, an erase lamp, and a cleaning station arranged in that order around the photoreceptor in the direction of rotation thereof;providing a first corona electrode disposed within 3 cm of a surface of the photoreceptor, but not in contact therewith, between the transfer station and the erase lamp, the transfer station and the erase lamp being less than 2 cm apart;providing a second corona electrode disposed within 3 cm of the surface of the photoreceptor, but not in contact therewith, between the erase lamp and the cleaning station, the erase lamp and the cleaning station being less than 2 cm apart; and charging a selected active area of the photoreceptor with charge of a selected polarity to a selected surface potential using the charger;', 'image-wise exposing the photoreceptor to reduce the magnitude of surface charge in exposed portions of the active area using the exposure subsystem;', 'selectively applying toner to the active area using the development station;', 'transferring some of the applied toner from on the active area to a receiver using the transfer station;', 'applying a first bias to the first corona electrode to charge the exposed and unexposed portions of the active area to respective selected pre-erase potentials of the same polarity as the selected surface potential and to charge toner remaining in the active ...

Determining transfer bias settings in electrophotographic printing

A method for determining transfer bias settings in an electrophotographic printing system having a plurality of printing modules, each printing module including a respective transfer subsystem operated at an associated transfer bias setting. The method includes defining a plurality of test transfer bias sets, each test transfer bias set including a transfer bias setting for the transfer subsystem in each of the printing modules. For each of the defined test transfer bias sets, a plurality of process control patches are transferred onto a measurement surface, wherein the process control patches include a monochrome patch printed using a particular printing module and at least one multi-color patch. A monochrome transfer function and a multi-color transfer function are determined characterizing the amount of the transferred toner as a function of the transfer bias, and are used to determine a transfer bias setting for the particular printing module.

METHOD FOR CREATING A SCRATCH-OFF DOCUMENT

A method for creating a scratch-off document having hidden information, the method includes providing a substrate; depositing a first layer of first toner particles on the substrate, wherein the first layer includes at least two thicknesses in which one region is thicker than the other region; depositing a second layer of toner particles on the first layer, wherein the first toner particles have a different thermal conductivity than the second toner particles; and applying heat to the first and second layers simultaneously so that the first layer adheres to the substrate in regions of the lesser thickness of the first toner particles and does not adhere in the regions of greater thickness of the first toner particles; wherein the first and second layers in the regions of greater thickness of the first toner layer can be removed thereby revealing hidden information. 1. A method for creating a scratch-off document having hidden information , the method comprising:providing a substrate;depositing a first layer of first toner particles on the substrate, wherein the first layer includes at least two thicknesses in which one region is thicker than the other region;depositing a second layer of second toner particles on the first layer, wherein the first toner particles have a different thermal conductivity than the second toner particles; andapplying heat to the first and second layers simultaneously so that the first layer adheres to the substrate in regions of the lesser thickness of the first toner particles and does not adhere in the regions of greater thickness of the first toner particles; wherein the first and second layers in the regions of greater thickness of the first toner layer can be removed thereby revealing the hidden information.2. The method as in claim 1 , wherein the second toner particles are optically opaque.3. The method as in claim 1 , wherein the first layer has the thicker region applied at a mass lay-down of the toner in excess of 0.60 mg/cm.4. ...

ELECTRICAL RECONDITIONING FOR PRINTER PHOTORECEPTOR

Apparatus for electrically reconditioning a rotatable photoreceptor in an electrophotographic (EP) printer includes a charger, an exposure subsystem, a transfer station, and an erase lamp arranged in that order around the photoreceptor in the direction of rotation thereof. A first corona electrode is disposed within 3 cm of the surface of the photoreceptor, but not in contact therewith, between the transfer station and the erase lamp. The transfer station and the erase lamp are at most 1 cm apart. A second corona electrode is disposed within 3 cm of the surface of the photoreceptor, but not in contact therewith, after the erase lamp in the direction of rotation of the photoreceptor. The erase lamp and the second corona electrode are less than 1 cm apart.

Printing tactile images with improved image quality

A method of forming an electrophotographic image having raised information providing a distinct tactile feel. A layer of non-marking particles is formed onto a receiver medium using an electrophotographic process responsive to tactile image data. One or more layers of marking particles are then formed over the layer of non-marking particles responsive to visible image data, wherein a volume average diameter of the non-marking particles is between 150% and 200% of the volume average diameter of the marking particles. The formed layers of non-marking particles and marking particles are then fused onto the receiver medium, wherein the layer of fused non-marking particles has a maximum thickness of at least 20 m to provide the distinct tactile feel.

Producing raised print using three toners

A method for producing a raised print using a three-component printer includes receiving image data and height data for an image to be printed, the height data specifying that raised printing should be produced in a non-yellow region of the image data. Separation data are determined for a yellow toner and two additional colored toners. The yellow separation data is determined based on the image data and the height data. The yellow separation and at least one of the colored separations specify that respective toners be deposited one atop the other in the non-yellow region. The two additional colored toners include respective amounts of black colorant. Using the printer with exactly three printing modules, respective toner images are deposited on the receiver, each corresponding to respective separation data. The deposited toner is fixed to the receiver.

Printer with compressible and incompressible transfer backups

An electrophotographic (EP) printer prints on a receiver sheet moving on a tensioned rotatable transport web with a Young's modulus of at least 1 GPa. The transport web is wrapped around a compliant image-bearing member. Two transfer stations are arranged along the belt, each with a rotatable image-bearing member. The first station has a first rotatable nip-forming member disposed adjacent to the transport web on the opposite side thereof from the first image-bearing member. The first rotatable nip-forming member is relatively stiffer than the first image-bearing member. The second station has a nip-forming member on a compliant mount. The second rotatable nip-forming member is relatively less stiff than the second image-bearing member.

BIASED MEMBER TO PREVENT CONTAMINATION

A method for preventing contamination of a lens assembly by charged particles on an image bearing surface in an electrophotographic printer includes providing a conductive electrode with an opening adjacent the lens assembly; charging the conductive electrode with a variable voltage power supply; and matching a voltage on the image bearing surface with the variable voltage power supply. 1. A method for preventing contamination of a lens assembly by charged particles on an image bearing surface in an electrophotographic printer comprising:providing a conductive electrode with an opening adjacent the lens assembly, wherein said conductive electrode is provided upstream and downstream of the lens assembly with respect to a direction of movement of the image bearing surface;charging the conductive electrode with a variable voltage power supply; andmatching a voltage on the image bearing surface with the variable voltage power supply so as to reduce an attractive force between the image bearing surface and the conductive electrode.2. The method of claim 1 , wherein the conductive electrode is attached to a dielectric layer and the dielectric layer is attached to a housing of the lens assembly.3. The method of claim 2 , wherein the conductive electrode is made of a metallic material.4. The method of claim 1 , wherein the variable voltage power supply is the same power supply used to energize a corona charger grid in the electrophotographic printer.5. The method of claim 1 , wherein the image bearing surface is a photoreceptor used to create a latent image and the surface of the photoreceptor is charged to a voltage level by a corona charger.6. The method of claim 5 , wherein the voltage level of the surface of the photoreceptor matches a voltage level applied to the corona charger grid by a corona charger grid power supply.7. An exposure subsystem for an electrophotographic printer comprising:an LED array for forming an image on an image bearing surface;a lens assembly ...

Method for creating a scratch-off document

A method for creating a scratch-off document having hidden information, the method includes providing a substrate; depositing a first layer of first toner particles on the substrate, wherein the first layer includes at least two thicknesses in which one region is thicker than the other region; depositing a second layer of toner particles on the first layer, wherein the first toner particles have a different thermal conductivity than the second toner particles; and applying heat to the first and second layers simultaneously so that the first layer adheres to the substrate in regions of the lesser thickness of the first toner particles and does not adhere in the regions of greater thickness of the first toner particles; wherein the first and second layers in the regions of greater thickness of the first toner layer can be removed thereby revealing hidden information.

Electrophotographic printer with compressible-backup transfer station

An electrophotographic (EP) printer for transferring a toner image to a receiver sheet has a tensioned rotatable transport web with a Young's modulus of at least 1 GPa. The transport web is wrapped around a compliant image-bearing member. A compressible, rotatable nip-forming member that is relatively less stiff than the image-bearing member is adjacent to the transport web on the opposite side thereof from the image-bearing member. A mount holds the nip-forming member against the image-bearing member, and permits the axis of rotation of the nip-forming member to move closer to or farther from the transport web. When the leading edge of the receiver on the web engages with the image-bearing member, the nip-forming member compresses. The axis of rotation of the nip-forming member translates by an amount less than the thickness of the receiver sheet minus the compression of the compliant coating of the image-bearing member.

PRINTING SYSTEM WITH RECEIVER CAPACITANCE ESTIMATION

A printing system includes a rotatable transport member that transports a receiver on its obverse. A tackdown unit includes an electrode arranged facing the reverse of the transport member. A source responsive to the control system produces a tackdown current, and a charger spaced apart from the transport member facing the obverse thereof selectively deposits charge on the receiver in response to the tackdown current. A non-contact voltmeter arranged facing the receiver on the obverse after the charger measures a resulting voltage. A control system drives a selected voltage or current through the charger using the source and measures a resulting voltage using the non-contact voltmeter. The selected voltage or current and the measured resulting voltage are used to automatically estimate a capacitance of the receiver. 1. A printing system , comprising:a) a rotatable transport member having an obverse and a reverse and adapted to transport a receiver on its obverse; i) an electrode arranged facing the reverse of the transport member;', 'ii) a source for selectively producing a tackdown current;', 'iii) a charger spaced apart from the transport member facing the obverse thereof, the charger adapted to selectively deposit charge on a receiver on the obverse in response to the tackdown current; and', 'iv) a non-contact voltmeter arranged facing the receiver on the obverse after the charger; and, 'b) a tackdown unit that includes i) drive a selected voltage or current through the charger using the source and measure a resulting voltage using the non-contact voltmeter; and', 'ii) using the selected voltage or current and the measured resulting voltage, automatically estimate a capacitance of the receiver., 'c) a control system adapted to2. The printing system according to claim 1 , further including: i) a rotatable static-dissipative member adapted to transfer toner to the receiver on the obverse; and', 'ii) a transfer power source responsive to the control system for ...

CONCURRENTLY REMOVING SHEET CHARGE AND CURL

Decurling a charged sheet and removing charge from the charged sheet prior to stacking, includes forming a nip between a roller and a compliant surface and applying pressure between the roller and compliant surface so that the nip has a decurling shape and when the nip engages the sheet it will perform a decurling function; and moving the charged sheet through the nip while the compliant surface has an AC voltage applied thereto so that a first side of the charged sheet is in contact with the compliant surface and has its charge substantially dissipated, whereby charge substantially remains on a second side of the charged sheet in contact with the roller and curling of the charged sheet is reduced. The method further includes using at least one non-contact charge removal device to remove charge from the second side of the charged sheet; and stacking the discharged sheet.

PRODUCING RAISED PRINT USING THREE TONERS

A method for producing a raised print using a three-component printer includes receiving image data and height data for an image to be printed, the height data specifying that raised printing should be produced in a non-yellow region of the image data. Separation data are determined for a yellow toner and two additional colored toners. The yellow separation data is determined based on the image data and the height data. The yellow separation and at least one of the colored separations specify that respective toners be deposited one atop the other in the non-yellow region. The two additional colored toners include respective amounts of black colorant. Using the printer with exactly three printing modules, respective toner images are deposited on the receiver, each corresponding to respective separation data. The deposited toner is fixed to the receiver. 1. A method for producing a raised print on a receiver using an electrophotographic printer including exactly three printing modules , the method comprising:receiving image data and height data for an image to be printed, the image data including a non-yellow region and the height data specifying that raised printing should be produced in the non-yellow region; 'wherein the yellow toner has a volume-weighted median diameter up to 30 μm and the two additional colored toners have respective volume-weighted median diameters between 3 μm and 12 μm, and the two additional colored toners include respective amounts of black colorant;', 'using a processor, automatically determining separation data for a yellow toner and two additional colored toners, wherein the separation data for the yellow toner is determined in response to the image data and the height data so that the yellow separation and at least one of the two additional colored separations specify that respective toners be deposited one atop the other in the non-yellow region,'}using the electrophotographic printer including the exactly three printing modules, ...

Transfer unit with compensation for variation

A transfer unit includes a rotatable static-dissipative member with a time-varying electrical property. A second member selectively transfers toner to or from the static-dissipative member. A power source selectively produces an electrostatic transfer field between the static-dissipative member and the second member, so that toner is transferred between the static-dissipative member and the second member. A charger spaced apart from the static-dissipative member selectively deposits charge thereon. A control system successively drives a plurality of different selected voltages or currents through the charger and measures a plurality of respective resulting charger currents or voltages. It uses the selected voltages or currents and the respective charger currents or voltages to automatically estimate a variation in the electrical property. It then causes the power source to produce an electric transfer field that transfers toner and compensates for the estimated variation.

Intermediate transfer member, imaging apparatus, and method

An intermediate transfer member for electrophotography includes a substrate, a cured static dissipative silicone compliant layer comprising crosslinked silicone polymer formed from a UV light curable siloxane and a UV curing catalyst, and an outermost surface ceramer layer. This intermediate transfer member can be incorporated into a suitable imaging apparatus for forming a toned image on a receiver element.

INTERMEDIATE TRANSFER MEMBER, IMAGING APPARATUS, AND METHOD

An intermediate transfer member for electrophotography includes a substrate, a cured static dissipative silicone compliant layer comprising crosslinked silicone polymer formed from a UV light curable siloxane and a UV curing catalyst, and an outermost surface ceramer layer. This intermediate transfer member can be incorporated into a suitable imaging apparatus for forming a toned image on a receiver element. 1. An intermediate transfer member comprising:a substrate,a cured static dissipative silicone compliant layer comprising crosslinked silicone polymer formed from a UV light curable siloxane and a UV curing catalyst, andan outermost surface ceramer layer.2. The intermediate transfer member of wherein electrically conductive inorganic particles are incorporated into the silicone compliant layer.3. The intermediate transfer member of wherein the inorganic particles comprise conductive tin oxides or other inorganic oxides coated with conductive tin oxides.4. The intermediate transfer member of wherein the inorganic particles comprise antimony doped conductive tin oxides or other inorganic oxides coated with antimony doped conductive tin oxides.5. The intermediate transfer member of wherein conductive inorganic oxides are present in the compliant layer at from 10 to 40 wt % of the compliant layer.6. The intermediate transfer member of wherein the UV light curable siloxane comprises epoxy functionalized PDMS.7. The intermediate transfer member of wherein the UV light curable siloxane comprises epoxycyclohexylethylmethylsiloxane functionalized PDMS.8. The intermediate transfer member of wherein the UV light curable siloxane comprises epoxycyclohexylethylmethylsiloxane functionalized PDMS that is a mixture of different molecular weights and functional groups.9. The intermediate transfer member of wherein the UV catalyst is an iodonium salt.10. The intermediate transfer member of wherein the UV catalyst comprises (p-isopropyphenyl)(p-methylphenyl)iodonium tetrakis( ...

Electrophotographic printer with compressible-backup transfer station

An electrophotographic (EP) printer for transferring a toner image to a receiver sheet has a tensioned rotatable transport web with a Young's modulus of at least 1 GPa. The transport web is wrapped around a compliant image-bearing member. A compressible, rotatable nip-forming member that is relatively less stiff than the image-bearing member is adjacent to the transport web on the opposite side thereof from the image-bearing member. A mount holds the nip-forming member against the image-bearing member, and permits the axis of rotation of the nip-forming member to move closer to or farther from the transport web. When the leading edge of the receiver on the web engages with the image-bearing member, the nip-forming member compresses. The axis of rotation of the nip-forming member translates by an amount less than the thickness of the receiver sheet minus the compression of the compliant coating of the image-bearing member.

PRINTER WITH COMPRESSIBLE AND INCOMPRESSIBLE TRANSFER BACKUPS

An electrophotographic (EP) printer prints on a receiver sheet moving on a tensioned rotatable transport web with a Young's modulus of at least 1 GPa. The transport web is wrapped around a compliant image-bearing member. Two transfer stations are arranged along the belt, each with a rotatable image-bearing member. The first station has a first rotatable nip-forming member disposed adjacent to the transport web on the opposite side thereof from the first image-bearing member. The first rotatable nip-forming member is relatively stiffer than the first image-bearing member. The second station has a nip-forming member on a compliant mount. The second rotatable nip-forming member is relatively less stiff than the second image-bearing member. 1. An electrophotographic printer , comprising:a) a rotatable transport web having a Young's modulus of at least 1 GPa and maintained under tension; i) a first rotatable image-bearing member around which the transport web is at least partially wrapped so that a first transfer region is defined in which toner is transferred from the first image-bearing member to the receiver sheet, the image-bearing member having a compliant coating;', 'ii) a first rotatable nip-forming member that is relatively stiffer than the first rotatable image-bearing member and is disposed adjacent to the transport web on the opposite side thereof from the first image-bearing member; and, 'b) a first transfer station adjacent to the transport web, the first transfer station including i) a second rotatable image-bearing member around which the transport web is at least partially wrapped so that a second transfer region is defined in which toner is transferred from the second image-bearing member to the receiver sheet, the image-bearing member having a compliant coating;', 'ii) a second compressible, rotatable nip-forming member that is relatively less stiff than the second rotatable image-bearing member and is disposed adjacent to the transport web on the ...

MAKING ARTICLE WITH DESIRED PROFILE

A method of making an article such as a lens on a receiver member having a desired cross-sectional profile includes: moving the receiver member past a plurality of deposition stations, with at least two of the deposition stations having first and second sources of marking particles having different volume average diameters, and selecting at least two different deposition stations with each having different size marking particles and depositing selected amounts of different marking particles on selected different locations of the receiver member depending upon the desired cross-section of a portion of the lens, the unfused toner stack height capability of each deposition station, and the fused toner stack height capability for the fusing method. The method further includes heating the deposited marking particles to fuse the toner stack and form the article having desired cross-sectional profile. 1. A method of making an article on a receiver member having a desired cross-sectional profile , comprising:a) moving the receiver member past a plurality of deposition stations, with at least two of the deposition stations having first and second sources of marking particles having different volume average diameters,b) selecting at least two different deposition stations with each having different size marking particles and depositing selected amounts of different marking particles on selected different locations of the receiver member depending upon a desired cross-section of a portion of the lens, an unfused toner stack height capability of each deposition station, and a fused toner stack height capability for the fusing method; andc) heating the deposited marking particles to fuse the toner stack and form the article having desired cross-sectional profile.2. The method of making a lens on a receiver member having a desired cross-sectional profile , comprising:a) moving the receiver member past a plurality of deposition stations, with at least two of the deposition ...

Scratch-off document having layers of different thermal conducitivity

A scratch-off document includes a substrate and a toner covering; the toner covering including: a first layer of first toner particles on the substrate having a first and second thickness, wherein the first and second thicknesses are different; a second layer of second toner particles on the first layer of toner particles; and at least one additive in either the first or second layer for creating a thermal conductivity difference between the first and second layer, wherein a portion of the first layer having a greater thickness and a portion of the second toner layer in registration with the first layer of greater thickness is manually removable by a scratching action.

Intermediate transfer member

The present invention is an intermediate transfer member that has an endless belt of a seamed insulating material. Disposed on the endless belt is a smoothing layer that forms a continuous seamless top surface. A release layer disposed on the smoothing layer.

Intermediate transfer method and roller

A small particle toner image is formed on a primary image member (1), such as a photoconductor, and electrostatically transferred to an intermediate image member (2) and then electrostatically transferred to a receiving sheet. The intermediate image member is chosen to have characteristics making the toner less attractive to the primary image number, but more attractive to the receiving sheet than the intermediate. The intermediate transfer member can include a base (30) of a relatively compliant material having a Young's modulus 10?7 Newtons per square meter or less with a very thin outer skin (20) of a harder material having a Young's modulus of 5x10?7 Newtons per square meter or more.

Electrically biasable electrographic member

The present invention is an intermediate transfer member for use in an electrostatographic machine. The intermediate transfer member includes an insulating support layer having an inner side and outer side, with a conductive layer disposed on at least the outer side. There is at least one conductive connection between the inner side of the insulating support layer and the conductive outer layer.

Electrically biasable electrographic member

The present invention is an intermediate transfer member for use in an electrostatographic machine. The intermediate transfer member includes an insulating support layer having an inner side and outer side, with a conductive layer disposed on at least the outer side. There is at least one conductive connection between the inner side of the insulating support layer and the conductive outer layer.

Electrostatographic apparatus having improved transport member

The present invention is an electrostatographic reproduction apparatus which includes a primary imaging member for producing an electrostatic latent image, a development station for applying toner particles to said latent image which tonus a developed toner image, and a transfer station for transferring said developed toner image from the primary imaging member to a receiver. A fuser assembly is included for fixing the developed toner image to the receiver, to form a fused toner image on the receiver. An endless transport member is provided for transporting the receiver to or from the fuser assembly, the transport member having a substrate bearing an oil-absorbing porous layer that would tribocharge positively upon contact with negatively charged toner particles, and a porous overcoat outermost layer that does not tribocharge positively upon contact with negatively charged toner particles.

Electrostatographic apparatus having improved transport member

Manufacturing a low cost intermediate transfer member

The present invention is a process for making an intermediate transfer member. The process includes forming an endless belt by seaming two ends of a substrate material to form a seam. A smoothing layer is applied on top of the endless belt using a rotary cast process wherein said intermediate transfer member has a continuous seamless top surface. In a preferred embodiment the endless belt is formed by adhering at least two layers of a substrate to form a belt having an inner and outer seam.

Manufacturing a low cost intermediate transfer member

The present invention is a process for making an intermediate transfer member. The process includes forming an endless belt by seaming two ends of a substrate material to form a seam. A smoothing layer is applied on top of the endless belt using a rotary cast process wherein said intermediate transfer member has a continuous seamless top surface. In a preferred embodiment the endless belt is formed by adhering at least two layers of a substrate to form a belt having an inner and outer seam.