Abstract: A print engine includes: a media support chassis defining a curved media feed path; a maintenance chassis mounted on the media support chassis; a plurality of maintenance modules fixedly mounted between sidewalls of the maintenance chassis; a plurality of guide rails extending radially upwards from the maintenance chassis; a plurality of print module carriers, each print module carrier being slidingly received on respective parallel guide rails; a plurality of print modules releasably engaged with a respective one of the print module carriers; and a lift mechanism for radially raising and lowering the plurality of print module carriers relative to the maintenance chassis between a maintenance position a printing position.

Abstract: A printing assembly includes: a print chassis having a fixed sleeve and a print module slidably and releasably mounted in a respective sleeve. The print module has a supply module and replaceable printhead cartidge, the printhead cartridge being slidably and releasably mounted to the supply module. The printhead cartridge is removable from the print module only when the print module is released from the fixed sleeve.

Abstract: A printer includes: a media support defining a media feed path; and a pagewide printing unit for printing onto media fed along the media feed path. The printing unit includes: a maintenance chassis fixedly positioned over the media feed path, the maintenance chassis having a maintenance module fixedly mounted thereto; a print bar chassis movably mounted on the maintenance chassis, the print bar chassis including a print module having a printhead; and a lift mechanism for raising and lowering the print bar chassis relative to the maintenance chassis between a maintenance position a printing position. The printhead extends and retracts through a space defined by the maintenance module in the printing and maintenance positions, respectively.

Abstract: A printhead capping system includes: a mounting bracket having a fixed shaft; a cap assembly mounted on the mounting bracket; and an arm hingedly connected to the shaft, the arm moving the cap assembly between a capping position and a printing position. The shaft is a drain shaft for receiving fluid drained from the cap assembly.

Abstract: A pagewide printing unit for mounting over a media feed path and printing onto media. The printing unit includes: a print module having a printhead; a maintenance module having a fixed frame supporting a capper and a wiper, the print module being movable relative to the fixed frame; and a lift mechanism for raising and lowering the print module relative to the fixed frame between a maintenance position a printing position. The fixed frame is in a same fixed position in both the maintenance and printing positions. Further, the capper and the wiper are each independently movable relative to the fixed frame.

Abstract: A modular printer includes: a media support defining a media feed path; and a plurality of pagewide printing units spaced apart along a media feed direction of the media feed path. Each printing unit includes: a maintenance chassis fixedly positioned over the media feed path; and a print bar chassis seated on the maintenance chassis, the print bar chassis supporting one or more print modules extending across a width of the media feed path. A lift mechanism raises and lowers the print bar chassis relative to the maintenance chassis, with each print bar chassis being independently liftable from a printing position to a maintenance position. A footprint of each printing unit in both the printing and maintenance positions is defined by a perimeter of the maintenance chassis.

Abstract: A printhead maintenance system includes: a maintenance chassis having a maintenance module with a laterally movable capper; a print bar chassis movably mounted on the maintenance chassis, the print bar chassis having a printhead and a cover for the capper; a lift mechanism for raising and lowering the print bar chassis relative to the maintenance chassis between a capping position a printing position; and a retraction mechanism for laterally extending and retracting the capper between the capping position and the printing position. The printhead is engaged with the capper in the capping position and the cover is engaged with the capper in the printing position.

Abstract: A print module including a printhead cartridge releasably engaged with a supply module The supply module includes a body housing electronic circuitry for supplying power and data to a printhead of the printhead cartridge; and an ink inlet module and an ink outlet module flanking the body at opposite sides thereof. Each of the ink inlet and ink outlet modules having a respective ink coupling engaged with complementary inlet and outlet couplings of the printhead cartridge.

Abstract: A printer including: a print module having a printhead for printing onto media fed along a media feed path and a maintenance module for maintaining the printhead. The maintenance module includes an L-shaped frame having a longer arm extending parallel with a longitudinal axis of the printhead and a shorter arm. The longer arm includes a capper for capping the printhead and the shorter arm includes a wiper for longitudinally wiping the printhead.

Abstract: A print module includes: a body housing at least one printed circuit board (PCB); an air inlet and an air outlet positioned in a roof of the body; an air pathway extending through the body between the air inlet and the air outlet; and an inkjet printhead positioned at a lower part of the body opposite the roof, the inkjet printhead electrically communicating with the PCB.

Abstract: A print module includes: a body housing first and second opposed printed circuit boards (PCBs), each of the first and second PCBs having heat-generating electronic components; an air inlet and an air outlet positioned towards an upper part of the body; an air pathway extending between the air inlet and the air outlet; a plurality of heatsinks, each heatsink being thermally coupled with one of the heat-generating components and having an array of cooling fins extending into the air pathway; and an inkjet printhead receiving power and print data from at least one of the first and second PCBs. The inkjet printhead is positioned toward a lower part of the print module.

Abstract: A printhead capping system includes: a fixed plate; first and second sliders slidably movable along the fixed plate; a mounting bracket having a cap assembly mounted thereon; and first and second arms interconnecting the mounting bracket and the respective first and second sliders. Movement of the first and second sliders towards each other causes lateral movement of the cap assembly away from the fixed plate, and movement of the first and second sliders away from each other causes lateral movement of the cap assembly towards the fixed plate.

Abstract: A suspended inkjet printing system includes: a pair of support beams extending across a media path; a mounting frame mounted between the support beams, a print head chassis mounted on the mounting frame, the print head chassis being actuable between at least a printing position and a maintenance position; and a plurality of print heads mounted on the print head chassis, each print head extending across the media path and spaced apart along the media path in a direction of media propagation. A plurality of projections extend from the print head chassis into engagement with the mounting frame, the projections controlling a height of the print head chassis relative to the media path.

Abstract: A printer including: a print module having a printhead for printing onto media fed along a media feed path and a maintenance module for maintaining the printhead. The maintenance module includes an L-shaped frame having a longer arm extending parallel with a longitudinal axis of the printhead and a shorter arm. The longer arm includes a capper for capping the printhead and the shorter arm includes a wiper for longitudinally wiping the printhead.

Abstract: A pagewide printing unit for mounting over a media feed path and printing onto media. The printing unit includes: a print module having a printhead; a maintenance module having a fixed frame supporting a capper and a wiper, the print module being movable relative to the fixed frame; and a lift mechanism for raising and lowering the print module relative to the fixed frame between a maintenance position a printing position. The fixed frame is in a same fixed position in both the maintenance and printing positions. Further, the capper and the wiper are each independently movable relative to the fixed frame.

Abstract: A print module including a printhead cartridge releasably engaged with a supply module The supply module includes a body housing electronic circuitry for supplying power and data to a printhead of the printhead cartridge; and an ink inlet module and an ink outlet module flanking the body at opposite sides thereof. Each of the ink inlet and ink outlet modules having a respective ink coupling engaged with complementary inlet and outlet couplings of the printhead cartridge.

Abstract: A print module includes: a body housing first and second opposed printed circuit boards (PCBs), each of the first and second PCBs having heat-generating electronic components; an air inlet and an air outlet positioned towards an upper part of the body; an air pathway extending between the air inlet and the air outlet; a plurality of heatsinks, each heatsink being thermally coupled with one of the heat-generating components and having an array of cooling fins extending into the air pathway; and an inkjet printhead receiving power and print data from at least one of the first and second PCBs. The inkjet printhead is positioned toward a lower part of the print module.

Abstract: An ink delivery system for an inkjet printer includes: a positive ink line; a negative ink line; and one or more print modules interconnected between the positive ink line and the negative ink line. Each print module includes: an inlet port; an outlet port; a printhead interconnected between the inlet port and the outlet port; a control valve positioned at the inlet port for controlling an ink pressure in the printhead; an ink pressure sensor for sensing an ink pressure in the print module; and a controller for receiving feedback from the pressure sensor and controlling the control valve. During printing, the ink pressure sensor, the controller and the control valve cooperate to control a backpressure in the printhead within a predetermined backpressure range.

Abstract: A printhead maintenance system includes: a maintenance chassis having a maintenance module with a laterally movable capper; a print bar chassis movably mounted on the maintenance chassis, the print bar chassis having a printhead and a cover for the capper; a lift mechanism for raising and lowering the print bar chassis relative to the maintenance chassis between a capping position a printing position; and a retraction mechanism for laterally extending and retracting the capper between the capping position and the printing position. The printhead is engaged with the capper in the capping position and the cover is engaged with the capper in the printing position.

Abstract: A printhead capping system includes: a fixed plate; first and second sliders slidably movable along the fixed plate; a mounting bracket having a cap assembly mounted thereon; and first and second arms interconnecting the mounting bracket and the respective first and second sliders. Movement of the first and second sliders towards each other causes lateral movement of the cap assembly away from the fixed plate, and movement of the first and second sliders away from each other causes lateral movement of the cap assembly towards the fixed plate.