System for identifying areas in pre-existing image data as test

Details System for identifying areas in pre-existing image data as test System for identifying areas in pre-existing image data as test

1994-02-23

1995-09-12

Beatty, Robert

Photocopying

Contact printing

Light boxes

355246, G03G 2100

Patent

active

054501652

ABSTRACT:
In a printing apparatus for creating images on a sheet in response to digital data, the incoming data is polled for image data corresponding to a preselected density condition, such as a particular half-tone, on an area of the final image. The area having the density condition can be used as a test patch to monitor overall print quality.

REFERENCES:
patent: 4341461 (1982-07-01), Fantozzi
patent: 4684243 (1987-08-01), Minor
patent: 4894685 (1990-01-01), Shoji
patent: 5060013 (1991-10-01), Spence
patent: 5253018 (1993-10-01), Takeuchi et al.
patent: 5266997 (1993-11-01), Nakane et al.
patent: 5315352 (1994-05-01), Nakane et al.

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