Incremental printing of symbolic information – Ink jet – Medium and processing means
Patent
1998-11-24
2000-11-14
Eickholt, Eugene
Incremental printing of symbolic information
Ink jet
Medium and processing means
347 37, 400 23, 400 48, B41J 201
Patent
active
061459801
ABSTRACT:
An inkjet printer includes a ball roller assembly for driving a paper-supporting platen along the width and length of the paper supported by the platen. A stepper motor activates the ball roller assemblies in response to drive signals from a motor driver. A first printhead includes a first array of inkjet nozzles which are in fluid communication with an ink supply and which fire in response to drive signals from a printhead driver. A microprocessor is provided to coordinate x and y axis movement of the paper with the firing of the first array of inkjet nozzles to print a predetermined pattern. In one embodiment, the ink supply includes a second print-mode ink supply in fluid communication with a second array of inkjet nozzles on the first printhead and a first print-mode ink supply in fluid communication with the first array of nozzles. In another embodiment, the printer further includes a second printhead, which includes a third array of inkjet nozzles in fluid communication with the first print-mode ink supply and a fourth array of inkjet nozzles in fluid communication with the second print-mode ink supply. The microprocessor activates the first and third arrays during a first operational mode and activates the second and fourth arrays during a second operational mode. The microprocessor can simultaneously enable the first and second operational modes according to requirements of a print job.
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Eickholt Eugene
Hewlett--Packard Company
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