摘要:
A printhead module comprising at least first and second rows configured to print ink of a similar type or color, at least some nozzles in the first row being aligned with respective corresponding nozzles in the second row in a direction of intended media travel relative to the printhead, the printhead module being configurable such that the nozzles in the first and second rows are fired such that some dots output to print media are printed to by nozzles from the first row and at least some other dots output to print media are printed to by nozzles from the second row.
摘要:
A print engine is provided having printhead modules and a controller. Each printhead module has a plurality of ejection nozzles. The nozzles of at least one of the printhead modules is rotationally displaced relative to the other printhead modules. The controller communicates ejection data to the ejection nozzles in accordance with a cumulative correction factor for each printhead module, including printhead modules having non-rotationally displaced nozzles, to at least partially compensate for the rotational displacement.
摘要:
A printer controller for supplying dot data to at least one printhead module, the at least one printhead module comprising a plurality of rows, each of the rows comprising a plurality of nozzles for ejecting ink, wherein the printhead module includes at least first and second rows configured to print ink of a similar type or color, the printer controller being configured to supply the dot data to the at least one printhead module such that, in the event a nozzle in the first row is faulty, a corresponding nozzle in the second row prints an ink dot at a position on print media at or adjacent a position where the faulty nozzle would otherwise have printed it.
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:
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.