Photocopying – Contact printing – Light boxes
Patent
1991-04-01
1992-09-22
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355204, 355246, 355326, G03G 2100
Patent
active
051501554
ABSTRACT:
Test patch densities are accurately determined during automatic set-up procedures, regardless of non-uniformities in the amount of wear and scumming from one part of the image receiver to another, or of variations in the coatings applied to the image receiver during manufacture, by correcting densitometer readings by obtaining density readings on the untoned image receiver during a cycle-up portion of the automatic set-up operation, saving the readings, and subtracting the saved readings from subsequent test readings of the same portion of the image receiver.
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Eastman Kodak Company
Grimley A. T.
Howley David A.
Smith Matthew S.
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