Process control patch generator

Details Process control patch generator Process control patch generator

1989-08-16

1990-08-14

Evans, Arthur G.

Recorders

Electric recording

Electrochemical

364519, G01D 1500

Patent

active

049491059

ABSTRACT:
Method and apparatus for generating a process control patch on a charge-retaining member in a photocopier or printer. Patch data is stored in binary form for a small portion of the first two lines of the patch. This data is replicated throughout the patch to provide the pixel data for the entire patch. Blank pixel data is sent to the printhead during portions of line scans which do not contain the control patch.

REFERENCES:
patent: 4368491 (1983-01-01), Saito
patent: 4684243 (1987-08-01), Minor
patent: 4693592 (1987-09-01), Kurpan

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