摘要:
A printer controller for supplying dot data to a printhead module having a plurality of nozzles for expelling ink, the printhead module including a plurality of thermal sensors, each of the thermal sensors being configured to respond to a temperature at or adjacent at least one of the nozzles, the printer controller being configured to modify operation of at least some of the nozzles in response to the temperature rising above a first threshold.
摘要:
A printhead controller is provided for supplying print data to a printhead having first and second rows of inkjet nozzles configured to print ink of a similar color. The controller is configured to supply the print data to the printhead such that, in the event a nozzle in the first row is faulty, a corresponding nozzle in the second row prints at a position on print media at or adjacent a position where the faulty nozzle would otherwise have printed.
摘要:
An inkjet printer is provided which has a printhead module and printer controller. The printhead module has a plurality of inkjet nozzles, with at least one of the nozzles being rotationally displaced relative to a carrier of the printhead module. The printer controller determines and communicates ink dot data to the inkjet nozzles, and is configured to determine the rotational displacement, determine at least one correction factor that at least partially compensates for an error in ink dot displacement caused by the determined rotational displacement, and alter the output of the ink dots based on the correction factor to at least partially compensate for the rotational displacement. The correction factor is at least partially based on a thickness of media being printed on.
摘要:
A printhead module having a plurality of nozzles for expelling ink, the printhead module including a plurality of thermal sensors, each of the thermal sensors being configured to respond to a temperature at or adjacent at least one of the nozzles, the printhead module being configured to modify operation of the nozzles in response to the temperature rising above a first threshold.
摘要:
A printhead is provided having at least one row that comprises a plurality of sets of n adjacent printing nozzles. Each nozzle is configured to expel ink in response to a fire signal, such that, for each set of nozzles, a fire signal is provided in accordance with the sequence: [nozzle position 1, nozzle position n, nozzle position 2, nozzle position (n−1), . . . , nozzle position x].
摘要:
Provided is a print engine pipeline subsystem of a printer controller. The subsystem includes a print engine pipeline controller for reading and writing print engine pipeline registers, and a contone decoder unit for expanding JPEG compressed continuous tone (“contone”) layers. Also included are a lossless bi-level decoder for expanding compressed bi-level layers, a line loader unit for expanding page images for a printhead, and a printhead interface for sending dot data to the printhead and for providing line synchronization between multiple printer controllers.
摘要:
A printer controller for supplying data to a printhead integrated circuit is provided. The printhead integrated circuit has a row of aligned printhead nozzles. A sequential group of the nozzles at only one end of the printhead integrated circuit is offset from the other nozzles of the row. The printer controller is configured to control order and timing of the supplied data to compensate for the offset nozzles during printing.
摘要:
A printer comprising a printhead comprising at least a first elongate printhead module, the at least one printhead module including at least one row of print nozzles for expelling ink; and at least first and second printer controllers configured to receive print data and process the print data to output dot data to the printhead, wherein the first and second printer controllers are connected to a common input of the printhead.
摘要:
A method of manufacturing a plurality of printhead modules, at least some of which are capable of being combined in pairs to form bilithic pagewidth printheads, the method comprising the step of laying out each of the plurality of printhead modules on a wafer substrate, wherein at least one of the printhead modules is right-handed and at least another is left-handed.
摘要:
A printhead comprising a plurality of printhead modules, the printhead being wider than a reticle step used in forming the modules, the printhead comprising at least two types of the modules, wherein each type is determined by its geometric shape in plan.