Laser printer employing overlapped color plane processing

Details Laser printer employing overlapped color plane processing Laser printer employing overlapped color plane processing

1998-05-05

2000-01-25

Popvici, Dov

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 117, G06F 1500

Patent

active

060184000

ABSTRACT:
The method of the invention controls a printer to overlap the processing of color plane image data and assures that there is no interruption between the processing of color planes. More specifically, the method of the invention provides a pair of queues, an imaging queue (IQ) wherein page strips are listed prior to being rasterized and a print engine queue (EQ) wherein page strips are listed after being rasterized. A first parameter identifies the color plane of page strips of a first color plane listed on the IQ and is associated with each of the page strips. A second parameter identifies the color plane of page strips that are being listed on the EQ after being rasterized. If the second parameter indicates that page strips of an earlier color plane are being passed to the EQ while the first parameter indicates that a page strip of a later color plane are being passed to the rasterizer, the page strips exiting from the rasterizer are listed on a work ahead queue (WAQ) instead of being listed on the EQ. When the parameters thereafter indicate the same color plane, the WAQ becomes the EQ and the process continues with the page strips in accordance with data in a next color plane.

REFERENCES:
patent: 5129049 (1992-07-01), Cuzzo et al.
patent: 5479587 (1995-12-01), Campbell et al.
patent: 5524186 (1996-06-01), Campbell
patent: 5781707 (1998-07-01), Kunz et al.
patent: 5805174 (1998-09-01), Ramchandran
patent: 5850504 (1998-12-01), Cooper et al.
patent: 5915075 (1999-06-01), Kadowaki
patent: 5915079 (1999-06-01), Vondran, Jr. et al.

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