Method for measurement of tone reproduction curve using a single

Photocopying – Contact printing – Light boxes

Patent

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355246, G03G 2100

Patent

active

055438962

ABSTRACT:
A method of development control by storing a reference tone reproduction curve and providing a single test pattern including a scale of pixel values in the interdocument zone of an imaging surface. The test pattern is then sensed in the interdocument zone and a control respond to the sensing of the test patern and the reference tone reproduction curve to adjust the machine operation for print quality correction.

REFERENCES:
patent: 5471313 (1995-11-01), Thieret et al.

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