Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern increase the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern increase the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern increase the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern increase the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern change the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern change the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern change the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern change the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.

Abstract: An apparatus detects inoperative inkjets during printing operations. The apparatus includes a supply of thermal substrate that is exposed to heat to darken the substrate. The thermal substrate is printed with materials ejected from a printhead to form a test pattern. The contrast between the ejected materials and the exposed thermal substrate are imaged by an optical sensor to generate image data that are analyzed to identify inoperative inkjets.

Abstract: The present teachings provide a fuser system for use in a xerographic apparatus. The fuser system includes a fuser roller and a pressure roller. The fuser roller and the pressure roller create a nip. The fuser roller has an outer layer of carbon nanotubes dispersed in a fluoropolymer wherein the carbon nanotubes comprise from about 0.1 weight percent to about 10 weight percent of the outer layer. The pressure roller comprises a static dissipative outer surface having a surface resistivity of less than about 1010 ?/cm.

Abstract: An apparatus for eliminating transfer streaks in a printing system is provided and comprises a hollow transfer backer bar including sealed ends. The transfer backer bar further includes a plurality of holes with the holes spaced along the photoreceptor supporting surface of the transfer backer bar. Air pressure can be applied within a hollow transfer backer bar thereby creating an air flow outward through the holes. The air flow contacts the underside of a photoreceptor and floats the photoreceptor on a thin cushion of air flow during transfer of an image to paper.

Abstract: An apparatus for eliminating transfer streaks in a printing system is provided and comprises a hollow transfer backer bar including sealed ends. The transfer backer bar further includes a plurality of holes with the holes spaced along the photoreceptor supporting surface of the transfer backer bar. Air pressure can be applied within a hollow transfer backer bar thereby creating an air flow outward through the holes. The air flow contacts the underside of a photoreceptor and floats the photoreceptor on a thin cushion of air flow during transfer of an image to paper.

Abstract: The present disclosure provides systems and methods for supplying solid-ink pellets from a container to an image-forming device. The system includes a delivery tube within the container, with one or more openings to receive solid-ink pellets from the container. An agitating structure coupled to the delivery tube disturbs the solid ink pellets. The movement of the delivery tube moves the agitating structure, resulting in disturbing the solid-ink pellets and maintaining flowability of the pellets to the image-forming device.

Abstract: The present disclosure provides systems and methods for supplying solid-ink pellets from a container to an image-forming device. The system includes a delivery tube within the container, with one or more openings to receive solid-ink pellets from the container. An agitating structure coupled to the delivery tube disturbs the solid ink pellets. The movement of the delivery tube moves the agitating structure, resulting in disturbing the solid-ink pellets and maintaining flowability of the pellets to the image-forming device.

Abstract: An electronic development compensation method which is broadly applicable to SCMB development includes controlling image banding by actively correcting for mechanical development errors by modulating DC bias to a magnetic brush.

Abstract: The present teachings provide a fuser system for use in a xerographic apparatus. The fuser system includes a fuser roller and a pressure roller. The fuser roller and the pressure roller create a nip. The fuser roller has an outer layer of carbon nanotubes dispersed in a fluoropolymer wherein the carbon nanotubes comprise from about 0.1 weight percent to about 10 weight percent of the outer layer. The pressure roller comprises a static dissipative outer surface having a surface resistivity of less than about 1010 ?/cm.

Abstract: Apparatus and methods for maintaining flowability of solid-ink pellets when delivering solid-ink pellets from a container to an image-forming apparatus. The apparatus includes an extraction tube inserted into the container and connected to a vacuum source. Suction from the vacuum source impels pellets into the extraction tube through an extraction inlet, but pellet agglomerations may clog the system. Such a clog produces an immediate pressure spike within the extraction tube, an event detected by the clog detector. An actuator, responsive to the clog detector, drives an agitating structure that breaks up agglomerations and restores smooth pellet flow. Alternative embodiments can include devices having only the clog detector or the agitating structure. Alternative implementations of the agitating structure provide means for accomplishing pellet break up. The accompanying method detects the occurrence of a clog and responds by operating the agitating structure to break up agglomerations.

Abstract: According to aspects of the embodiments, there is provided methods of replenishing at least one consumable in a printer system having at least one channel with a lockout device and an indicator. The embodiments incorporate a solenoid latch on the channel, a channel closed switch and an attention light. When a consumable needs to be replaced, the user scans the new consumable label against a CRUM reader. If it is valid consumable for the printing system, the attention light above the low or empty channel is lit and its solenoid latch is released. The attention light and solenoid latch would be wired in parallel so that whenever the solenoid is energized to allow the channel to be opened, the attention light will illuminate.

Abstract: System and methods for heating and transporting liquefied solid ink in an imaging device. The system includes an electroconductive tube that not only melts the solid ink, but also permits a control system to sense the ink temperature due to the tube's inherent properties. A controller operatively coupled to the electroconductive tube provides power to the tube, which in turn enables current flow. The flow of current resistively heats the electroconductive tube, thereby heating and melting the ink. Further, the controller is configured to control the current flowing through the tube.

Abstract: A printer apparatus includes the use of at least two HSD stations to develop an electrostatic image generated by a single exposure on a photoreceptor in order to enable high speed, high quality monochrome development. A third standby HSD station can be included for increased reliability or be cycled in and out of development allowing on-the-fly cleaning of HSD wires.