摘要:
An image processing apparatus includes bus, adding portion, image processing portion, and output processing portion. In the case where document sheet data as a processing target is monochrome image data, the adding portion outputs, to the bus, color image data obtained by adding, to the monochrome image data, dummy image data pieces for a plurality of colors each corresponding to a predetermined processing unit amount which corresponds to a part of the monochrome image data. The image processing portion performs image processing per data amount equal to or smaller than the processing unit amount and outputs the resultant data to the bus. The output processing portion outputs image data pieces for a plurality of colors included in the color image data processed by the image processing and acquired from the bus, in accordance with synchronization signals inputted for the respective image data pieces for the plurality of colors.
摘要:
The image reading device includes: a reading unit that includes a light source emitting light to irradiate an image on a recording medium transported in a first direction and a light receiving portion that receives light reflected by the recording medium; a transport path forming unit that forms a part of a transport path for the recording medium; a light transmitting portion that is provided in the transport path forming unit and transmits the light; and plural projection members that are provided to the light transmitting portion so as to project from the light transmitting portion toward the transport path, and that are arranged in a second direction crossing the first direction while each extending in the first direction.
摘要:
A printer that has a chassis, a retractable print media tray assembly mounted on the chassis, an ink ejecting printhead assembly configured to eject ink onto an associated ink transfer roller, and at least one cleaning station for removing residual ink from the ink transfer rollers after transfer of ink from the transfer roller onto the print media.
摘要:
Dual printhead controller architecture includes a master central processor capable of being interfaced with a first printhead. A slave central processor is capable of being interfaced with a second printhead. Data transfer means is operatively connected between the master central processor and the slave central processor to permit communication between the master and slave central processors. A host link is operatively connected to the master central processor to permit the master central processor to receive page data from a host processor. Ink cartridge quality assurance integrated circuitry is connected to the master central processor.
摘要:
A printer has a chassis with a pair of guide rails. A retractable print media tray assembly is arranged on the guide rails in a displaceable manner. At least one print engine is arranged on the chassis and has an ink ejecting printhead assembly configured to eject ink onto an associated ink transfer roller. At least one cleaning station is engaged with a respective ink transfer roller and configured to clean residual ink from the transfer roller, subsequent to transfer of ink from the transfer roller onto the print media.
摘要:
The invention relates to a print engine for a compact recess-mountable pagewidth printer. The printer includes a paper tray inside a housing. The print engine includes a chassis mountable within the housing next to the paper tray to define a media path co-planar with sheets of media within said paper tray. The print engine also includes a transfer roller protruding from the chassis and configured to contact the sheets of media as they are moved along the media path. A media moving mechanism moves a sheet of media through the media path. A printhead assembly having a micro-electromechanical inkjet printhead is mounted within the chassis and is configured to transfer print onto the transfer roller. The printhead assembly has a wiper and sponge arrangement for cleaning print from the transfer roller during rotation thereof.
摘要:
A page-width inkjet printer includes a chassis. A print media feed assembly is mounted on the chassis. A page-width inkjet printhead is mounted on the chassis downstream of the feed assembly. A tubular print transfer roller is operatively positioned with respect to the printhead to receive and transfer print from the printhead to sheets of print media fed past the transfer roller. A drive mechanism is mounted on the chassis to drive the transfer roller, the drive mechanism including a drive motor and gearbox assembly received within the tubular print transfer roller.
摘要:
A controller for controlling printing on both surfaces of a sheet of print media includes a first print controller for controlling printing by a page width printhead of a first print engine and a second print controller for controlling printing by a page with printhead of a second print engine substantially simultaneously with the printing by the printhead of the first print engine. A first communications link interconnects the first print controller and the second print controller for synchronizing the print controllers. An second communications link is connected to at least one of the print controllers for interfacing with a host system for receipt from the host system of descriptions of pages to be printed on said surfaces of the sheet of print media by the print engines.
摘要:
Disclosed is a page-width printhead for a print engine having a a motorized transfer roller located adjacent to the printhead. The transfer roller is also adjacent to the sheet media path of the device which uses the engine. The printhead is oriented to print directly onto the transfer roller. The engine has a second roller closely adjacent to the transfer roller and on an opposite side of the path for pressing the sheet onto the transfer roller. In some embodiments, the printhead has a surface adjacent to the transfer roller that carries capping seals on either side of the ink ejecting area. The printhead is held off of the transfer roller by a solenoid but parked against the transfer roller when not in use.
摘要:
A page-width inkjet printer includes a chassis. A print media feed assembly is mounted on the chassis. A page-width inkjet printhead is mounted on the chassis downstream of the feed assembly. A tubular print transfer roller is operatively positioned with respect to the printhead to receive and transfer print from the printhead to sheets of print media fed past the transfer roller. A drive mechanism is mounted on the chassis to drive the transfer roller, the drive mechanism including a drive motor and gearbox assembly received within the tubular print transfer roller.