摘要:
In a method of forming aninkreceptive card substrate (46), an ink-receptive material (30) is provided. The ink-receptive material (30) includes a backing layer (34) and an ink-receptive coating (32) on a surface of the backing layer (34). Next, a card member (38) is provided. Finally, the ink receptive material (30) is laminated to a surface (40) of the card member (38) with the ink-receptive coating (32) facing the surface (40) of the card member (38). This results in the bonding of the ink-receptive coating (32) to the surface (40) of the card member (38). Additional embodiments of the present invention are directed to devices that are configured to perform the above-identified method.
摘要:
A capping mechanism for a print engine includes a capping member (592) mountable in alignment with a printhead of the print engine. The capping member is displaceable into and out of abutment with the printhead for capping and uncapping the printhead respectively. A torsion bar (728) arrangement acts on the capping member for displacing the capping member. A mechanical displaceable element (570) co-operates with the torsion bar arrangement such that, when the element is in a parked position, the element engages the torsion bar arrangement to cause the capping member to be displaced into abutment with the printhead to cap the printhead. When the displaceable element is out of its parked position, the capping member is urged by leaf spring (734) by the torsion bar arrangement out of abutment with the printhead. Element (570) also moves a cutting device (566) for separating the printed sheet after printing.
摘要:
A pagewidth inkjet printer is described which includes printhead (11) with a plurality of print nozzles (30) for ejecting ink drops towards a print medium. A space is defined between the nozzles and a nozzle guard (43) with a series of apertures (44) aligned with the nozzles. During printing operation, positive air pressure is supplied to this space, the air exiting the space through the apertures, preventing blockage by paper dust. When not printing, the air supply is closed off by air valve member (66) and a capping member (80) on a rotary platen (14) contacts the printhead to maintain a closed atmosphere at the surface of the nozzles, reducing drying of ink on the nozzles.
摘要:
An ejector mechanism (576) for a print engine (500) includes a support member (510) carrying a plurality of fluid conduits (514) for feeding fluids from a source of each fluid to a printhead (516) of the print engine (500), one of the fluid conduits being an air feed conduit for feeding air to the printhead (500). A seal (544) is displaceably arranged relative to the support member (510) for sealing inlet openings of the fluid conduits (514) when the seal (544) is in a first position. The seal (544) is displaceable to a second position to expose the openings of the fluid conduits (514) to place the fluid conduits (514) in fluid communication with their respective sources of fluid. A coil spring (588) acts on the seal (544) for urging the seal to its first position.
摘要:
A pump assembly for a print engine, where the print engine has a printhead (590) employing a fluid cleaning arrangement such as filtered air, includes a housing defining a fluid inlet (526) and a fluid outlet (528). An impeller (522) is arranged within the housing for drawing fluid through the inlet and ejecting it through the outlet. A drive motor (530) rotatably drives the impeller. The drive motor is also the drive motor of the print engine, which controls feeding of print media (504) to the printhead for printing of an image on the print media.
摘要:
A method and apparatus is provided for compensating for variable overlap between segments of a page width print head system to reduce visually perceptible artifacts due to misalignment of adjacent overlapped segments. One method employs a summation means which sums a current dither value from a dither matrix with an overlap signal to provide an output value which is then compared in a comparator with an input continuous tone data value providing an output compensated dither value to control nozzles in the overlap region of the segments. Another method uses a software program to provide the compensated dither matrix. A sensing means provides a measure of the degree of overlap of the segments to generate the overlap signal. The sensing means may sense temperature or relative displacement of the segments. The degree of overlap may be determined for various temperatures and stored in a ROM.