Abstract:
An article (46) for cooling an imaging material (26) which has been heated to a first temperature by a thermal processor (10). The article (46) includes a first cooling section (47) on which the imaging material (26) rides after the imaging material (26) exits the thermal processor (10). The first cooling section (47) is at a lower temperature than the first temperature. The first cooling section (47) has a curved shape such that the imaging material (26) is curved when riding on and being cooled by the first cooling section (47).
Abstract:
The present invention provides magnetic recording media comprising a magnetic layer and optionally a backside coating provided on a substrate. At least one of the magnetic layer and the optional backside coating comprises a polymeric binder, wherein the polymeric binder is an electron beam radiation cross-linked matrix of ingredients comprising a binder polymer component and a polymeric radiation cross-linking agent. The polymeric radiation cross-linking agent comprises a plurality of (meth)acrylate-functional chain segments of formula (I), wherein B is a segment of the polymer backbone, X is a single bond or a divalent organic linking group, n has a value in the range from 2 to 6, and R is H or -CH3. The polymeric radiation cross-linking agent has a molecular weight of at least 4000 and has sufficiently high molecular flexibility to effectively cross-link the polymeric binder upon exposure of the polymeric radiation cross-linking agent to electron beam radiation.
Abstract:
A system for registration of one or more color separation images on a photoconductor belt prevents misregistration that otherwise can occur between different scan lines and between different latent images due to side-to-side movement of the photoconductor belt. The registration system operates to detect movement of the photoconductor belt (12). Based on the detected movement, the system operates to control modulation of laser beams (46) used to form the latent images to ensure precise registration of the color separation images. As one advantage, the movement of the photoconductor belt can be detected precisely and inexpensively by a photodetector (92) scanned with the same laser beam used for imaging, the photodetector being disposed adjacent the edge (62) of the photoconductor belt.
Abstract:
A system for registration of color separation images on a photoconductor belt (12) in an imaging system operates to detect (76) a position of an edge of the photoconductor belt (12). The registration system detects the position with the same laser scanner used for forming latent images on the photoconductor belt. The registration system includes a belt steering control (103) system that steers the photoconductor belt (12) based on the detected position to reduce deviation of the belt from a continuous transport path. The registration system also may include a scan control system (88) that, based on the detected position, controls the modulation of laser beams scanned to form latent images on the photoconductor belt (12). By controlling belt steering (103) and laser beam scanning (88), the registration system maintains the image quality of a final multi-color image upon transfer of registered color separation images to an output substrate.
Abstract:
Various structures are described to minimize tape edge creasing in a tape cartridge. Several structures prevent the flange from being pressed by the housing of the tape cartridge into the tape pack with sufficient force to crease the edges of any exposed tape strands. Use of various structures or alternative materials also can stiffen the flange, again reducing the likelihood of the flange deflecting into the tape pack.
Abstract:
A cooling article (10) includes a plate (20) positioned adjacent the exit of a thermal processor. The plate (20) has a surface for receiving a sheet of thermally-processed material such that the sheet of thermally-processed material moves along the surface. A first region (30) of the surface of the plate adjacent the exit of the thermal processor includes a thermally insulative material, whereas a second region (32) of the surface of the plate on a side of the first region opposite the exit of the thermal processor includes a thermally conductive material. The sheet of thermally-processed material contacts the thermally insulative material during movement in the first region, and contacts the thermally conductive material during movement in the second region. The thermally insulative material prevents excessive heating of the first region of the cooling plate by leading portions of the sheet of thermally-processed material. The thermally insulative material thereby reduces defects in the trailing portion of the sheet of thermally-processed material due to uneven cooling. The reduction of defects contributes to improved quality in the images produced on sheets of thermally-processed material.
Abstract:
A squeegee apparatus and method for removing excess developer liquid from an imaging substrate in a liquid electrographic imaging system make use of a squeegee roller having a core with a crowned profile. With determination of a proper loading force, the squeegee apparatus and method achieve substantially uniform loading force along the length of the squeegee roller, and thus along the width of a nip formed along the imaging region of the imaging substrate. As a result, the squeegee apparatus and method provide substantially uniform removal of developer liquid from the imaging substrate, enhancing quality of an ultimate printed image.
Abstract:
The invention is an apparatus for continuously removing excess carrier liquid from a photoreceptor comprising an image drying means which contacts the photoreceptor, wherein the image drying means has an outer layer which absorbs and desorbs carrier liquid and an inner layer having a Shore A hardness of 10 to 60 which is phobic to the carrier liquid, and a heating means which heats the surface of the image drying means for at least 0.05 seconds to no more than 5 DEG C below the flashpoint of the carrier liquid, wherein the photoreceptor is moving at a speed of greater than 45 mm/sec. The invention is also the method of removing excess carrier liquid from a photoreceptor comprising contacting the photoreceptor with such a drying element and then heating the drying element to no more than 5 DEG C below the flashpoint of the carrier liquid for at least 0.05 seconds.
Abstract:
An apparatus and method useful within an imaging apparatus which is capable of producing a multi-colored image on a medium from image data in an electrophotographic system comprises a photoreceptor (110) on which a plurality of electrostatic images can be captured. The photoreceptor (110) can be driven through a photoreceptor path and caused to be transported at a cyclically varying velocity. A plurality of exposure devices (130) direct light beams (132) which strike the photoreceptor (110) at various locations along the path, the lengths between where the beams (132) strike is such that a plurality of images can be registered relative to each other and such that the registrations account for the cyclically varying velocity. The photoreceptor (110) can be driven by a stepper motor (134) and scanned once with each step of the stepper motor (134) or once for a plurality of discrete steps.