Abstract: An imaging apparatus includes a controller and a media detection device mechanically engaged with a stack of print media. The media detection device has a movable indicator having a surface with distinct reflectance characteristics. A reflectance sensor is communicatively coupled to the controller. The reflectance sensor reads a reflectance of the surface and outputs a signal to the controller indicative of at least one characteristic of the print media.

Abstract: A modular print engine assembly for a peripheral comprises an upper paper support, a tray base, the upper paper support pivotally connected to one of the tray base or an extender disposed between the upper paper support and the tray base. The extender allows the modular print engine to be utilized across multiple print models or platforms with housings of various shape and size.

Abstract: A trough support rib for improved edge-to-edge printing having a media feedpath extending in a first direction, a printhead reciprocally movable in a second direction, the second direction defining a print zone, an ink trough, at least one support rib beneath the print zone within the ink trough, the at least one support rib having an upper angled edge for engaging print media defined by two beveled surfaces, the rib further including a notch for removal of overspray ink to the ink trough.

Abstract: An imaging apparatus includes a printhead carrier for mounting a printhead cartridge. The printhead carrier includes a carrier back wall having an upper portion. A back portion of a printhead cartridge cradle is connected to the carrier back wall. A first proximal end of a latch lever is pivotably attached to a front portion of the printhead cartridge cradle. The latch lever has at least one cam follower, with each cam follower being located near the first distal end of the latch lever. A second proximal end of a carrier lid is pivotably attached to the upper portion of the carrier back wall. Each cam of the carrier lid is formed near a second distal end of the carrier lid, and each cam is positioned for progressive engagement by a corresponding cam follower as the latch lever is moved from an open position toward a latched position.

Abstract: A modular print engine assembly for a peripheral comprises an upper paper support, a tray base, the upper paper support pivotally connected to one of the tray base or an extender disposed between the upper paper support and the tray base. The extender allows the modular print engine to be utilized across multiple print models or platforms with housings of various shape and size.

Abstract: An imaging apparatus includes a controller and a media detection device mechanically engaged with a print media. The media detection device has a movable indicator having a surface with distinct reflectance characteristics. A reflectance sensor is communicatively coupled to the controller. The reflectance sensor reads a reflectance of the surface and outputs a signal to the controller indicative of at least one characteristic of the print media.

Abstract: An imaging apparatus includes a controller and a media detection device mechanically engaged with a stack of print media. The media detection device has a movable indicator having a surface with distinct reflectance characteristics. A reflectance sensor is communicatively coupled to the controller. The reflectance sensor reads a reflectance of the surface and outputs a signal to the controller indicative of at least one characteristic of the print media.

Abstract: An electronic circuit that drives a driven element to which driving voltage or driving current is supplied. The electronic circuit includes a signal line, a unit circuit connected to the signal line, and a voltage supply line. The unit circuit includes a driving transistor, a switching element, and a capacitive element. The driving transistor includes a gate terminal, a first terminal, a second terminal connected to the voltage supply line, and a channel formed between the first terminal and the second terminal. The switching element controls electrical connection between the gate terminal of the driving transistor and one of the first terminal and the second terminal. The capacitive element includes a first electrode connected to the gate terminal of the driving transistor and a second electrode connected to the signal line. A conductive state between the first terminal and the second terminal is controlled by a gate voltage applied to the gate terminal.

Abstract: A power supply keying method for use with an electrical apparatus includes defining a plurality of power supply classes; associating with the plurality of power supply classes a plurality of power supplies, each of the plurality of power supplies including a power supply housing having a unique keying arrangement corresponding to one power supply class of the plurality of power supply classes; and providing in the electrical apparatus a power supply receptacle for receiving at least one power supply of the plurality of power supplies, the unique keying arrangement of the power supply housing in conjunction with the power supply receptacle permitting reception of a particular power supply of the plurality of power supplies into the power supply receptacle only if the power supply class associated with the particular power supply has power supply electrical characteristics that satisfy electrical power requirements of the electrical apparatus.

Abstract: An ink jet printer jets ink onto a section of a front side of a print medium. The ink jet printer includes an ink jetting printhead facing the front side of the print medium. A media support apparatus opposes the printhead. The media support apparatus includes a substantially flexible body having an outer surface engaging a back side of the print medium such that the section of the print medium receiving the ink is substantially flat. A substantially rigid elongate element engages the body and has a length direction substantially perpendicular to a feed direction of the print medium. The elongate element provides at least a portion of the outer surface of the body with a predetermined degree of straightness.

Abstract: An imaging apparatus provides a machine frame including a first side frame and a second side frame. A first plurality of platen mounting members is provided which are spaced apart and extend from the first side frame. A second plurality of platen mounting members is provided which are spaced apart and extend from the second side frame. A platen is positioned to extend between the first side frame and the second side frame. The platen has a first end including a first plurality of engagement members and has a second end including a second plurality of engagement members. A biasing assembly is coupled to the machine frame, wherein the biasing assembly applies a biasing force to the platen to move the first plurality of engagement members into respective engagement with the first plurality of platen mounting members and to move the second plurality of engagement members into respective engagement with the second plurality of platen mounting members.

Abstract: A print media handling system for an imaging apparatus having a media feed path includes a pair of media support members, each have a first wall defining a media contact surface and a support portion defining a media support surface. The pair of media support members are pivotally mounted to the imaging apparatus for symmetrical operation with respect to a centerline of the media feed path. The pair of media support members define a media bin for receiving printed media. The print media handling system further includes a drive system for operating the pair of media support members between a first position wherein the media support surface of the pair of support members carries a printed media sheet and a second position wherein the printed media sheet is released to fall into the media bin.

Abstract: Disclosed is a replaceable media guide for use with a sheet feeding mechanism. The media guide includes a support plate, an edge guide projecting substantially at right angles from the support plate, and a first sheet engaging friction pad engaged with the support plate. The guide is designed so that the first friction pad faces a friction roller of a sheet feeding mechanism when the guide is mounted on the sheet feeding mechanism. A sheet feeding apparatus is also provided in which the media guide is inserted into the sheet feeding mechanism.