Abstract:
Drum intermediate transfer member or fuser apparatus, for use in a printer or copier, comprising: a drum having a drum surface and including a liquid-containing region in the interior of the drum thermally connected to the drum surface, such that the liquid is capable of heating and cooling the drum surface; and a liquid transfer system including a hot liquid reservoir, a cold liquid reservoir, at least one pump, pipes and optionally at least one valve arranged to selectively pump liquid between the liquid-containing region and the hot liquid reservoir, and between the liquid-containing region and the cold liquid reservoir.
Abstract:
An imaging device comprising: an imaging surface on which images are formed; an image transfer surface which receives the images at a first transfer region and from which the images are transferred at a second transfer region downstream of the first transfer region; and a cleaning arrangement which engages said image transfer surface at a cleaning region of the image transfer surface situated between the first and second transfer regions downstream of said first transfer region and upstream of the second transfer region.
Abstract:
A system for double-sided imaging on a continuous-web substrate (101) having first and second substrate surfaces, the system including an imaging device comprising a toner-image bearing surface (40) having selectively formed thereon first and second images. The system further includes a web-feeder system (102, 110, 112, 113, 126, 39, 41) which selectively brings the first and second substrate surfaces into operative engagement with the toner-image bearing surface (40), to transfer thereto the first and second images, respectively, in accordance with a preselected imaging sequence.
Abstract:
Imaging apparatus including an imaging surface having a toner image formed thereon and an intermediate transfer member (30, 102, 104), which receives the toner image from the imaging surface and from which it is subsequently transferred. The intermediate transfer member (30, 102, 104) includes a drum (30) having mounting recesses formed therein and an intermediate transfer blanket (104) mounted on the drum (30). The blanket (104) has a layered transfer portion having a transfer surface (109) on one face thereof which receives the toner image and optionally an adhesive layer (126) on the opposite face thereof and a mounting fixture (106), attached to one edge of the layered transfer portion and adapted to mate with the mounting recesses in the drum, whereby the transfer blanket (104) is fixedly and removably mounted on the drum (30).
Abstract:
Imaging apparatus including an imaging surface (12) having formed thereon a latent image, including image portions at a first voltage and background portions at a second voltage and a developer operative to develop the latent image with a liquid toner comprising charged toner particles and carrier liquid. The developer includes an electrified moving developer electrode (18), operatively engaged with the imaging surface to form a development region therebetween, whereat the latent image is developed and a resilient blade (32), having an operative edge urged against the outer surface (19) of the developer electrode (18) after it leaves the development region, for removing toner particles from the developer electrode. The resilient blade (32) includes a relatively thin base sheet (38) formed of a relatively hard material comprising the operative edge and having a back surface (42) facing generally outwardly from the development roller and a built-up portion (44) having a non-uniform, hydrodynamically shaped thickness profile and mounted on at least a portion of the back surface (42) adjacent the operative edge of the resilient blade, the built-up portion being operative to substantially reduce accumulation of the toner particles on the resilient blade.
Abstract:
Apparatus for reducing contamination of a corona emitter (30) during an imaging operation of imaging apparatus including a source of high voltage (32) operative to energize the corona emitter (30) during the imaging operation and a heater power supply (34) operative to heat the corona emitter (30) to a temperature above that of its surroundings during the imaging operation.
Abstract:
A homogeneous liquid composition, for use in the preparation of lliquid toners containing at least one charge director and in which the electrical properties of the charge director(s) is/are stabilized, comprises: (1) insulating non-polar carrier liquid compatible with liquid toners for electrostatic imaging; (2) at least one charge director other than an amine salt; and (3) at least one stabilizing component in an amount effective to stabilize the electrical properties of said at least one charge director, said component being selected from non-quaternary amine salts and being soluble in the carrier, e.g. diethylammonium chloride and isopropylamine dodecylbenzenesulfonate. The invention further relates to liquid toners for electrostatic imaging comprises thermoplastic resin particles dispersed in an insulating non polar carrier liquid, preferably a hydrocarbon having a volume resistivity above 109 ohm-cm and a dielectric constant below 3.0, colorant particles micro-dispersed in said carrier liquid, at least one charge director, and at least one stabilizing component (3), as defined above; a method for producing the liquid toners; and an electrostatic imaging process utilizing the liquid toners.
Abstract:
A liquid toner imaging system having at least one metal product, having a coating on at least a portion thereof, the coating having a thickness of between about 0.1 and about 2 microns thereon, said coating comprising an anionic fluorosurfactant, said coating being in contact with liquid toner therein.
Abstract:
A method of printing a multi-page job including producing separate non-bit mapped files for each page of the multi-page job, producing a page file for each page of the multi-page job, storing the page files in a memory and printing the page files in sequence. The page file may include color separations for the various colors to be printed on the page or other convenient forms of storage devoted to a single page. The page file may be in a bit mapped format or may be in the form of a continuous tone image in a format which can be easily converted into a bit-map format by the printer during the printing process. Preferably, the continuous tone image can be converted into a bit map for printing on the fly.
Abstract:
A method of printing a multi-page job including producing separate non-bit mapped files for each page of the multi-page job, producing a page file for each page of the multi-page job, storing the page files in a memory and printing the page files in sequence. The page file may include color separations for the various colors to be printed on the page or other convenient forms of storage devoted to a single page. The page file may be in a bit-mapped format or may be in the form of a continuous tone image in a format which can be easily converted into a bit-mapped format by the printer during the printing process. Preferably, the continuous tone image can be converted into a bit map for printing on the fly.