摘要:
A printer (10) stores print image data in memory (56) as the print image data is used by a print engine (12) to print an image in accordance with the print image data. In one embodiment, separate data buses (17, 46) and separate processors (40, 50) are used to transfer the print image data to the print engine and the memory so that the transfer operations can occur independently and in parallel. In another aspect, the print image data is compressed before it is stored in the memory. In yet another aspect, an overrun condition is detected when the transfer of data to the memory falls behind the transfer of data to the print engine. During the overrun condition, transfer of data to the memory is suspended until after the page has been printed.
摘要:
A dense array of ink jets is achieved by a fanning-in of chambers (126) to a linear array of orifices (124). The ends of the chambers (126) remote from the orifices have actuation locations (128) which are coupled to elongated transducers (130) having axes of elongation which are parallel to the axes of ejection of droplets from the orifices (124).
摘要:
Method and apparatus for an ink jet, in which ink is maintained in a solid-state in a reservoir and in a liquid state in an imaging system, during a standby mode, the ink is heated in the reservoir to change the phase of the ink to the liquid phase, and the ink in the reservoir and in the imaging system is maintained in a liquid state during the ink droplet ejection mode.
摘要:
A demand or impulse ink jet (14) ejects droplets (24) of hot melt ink. The hot melt ink is heated from a solid state to a liquid state in the jet prior to the ejection of droplets on demand. The ink is then cooled on striking the target. The ink may contain a wax.
摘要:
Ink jet apparatus includes two ink supply modules (12:14) which are coupled in series to an ink jet orifice (10) so that a bubble trap chamber (32a) and level sensor (36a) of one supply module (12) are maintained in a functional orientation while the second module (10) may be randomly oriented.