Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1982-05-27
1984-05-29
Prescott, A. C.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 14SH, 355 3R, 355 14R, 355 14E, 355 35H, 355 14CH, G03G 1500
Patent
active
044511370
ABSTRACT:
Apparatus including a recirculating feeder and document positioner is coupled to a copier. The copier has variable contrast and density controls. Ordinarily, the document positioner directly feeds document sheets seriatim to the recirculating feeder tray. However, if a document sheet requires copier contrast or density adjustments, the document sheet is stopped at the copier exposure platen, adjustments made to the contrast and density controls and a copy is made. Further adjustments and copies are made until a proof copy having an acceptable contrast and density is produced. The document sheet is then delivered to the tray. A memory stores the location in the document of each stopped document sheet and the proof copy adjustment information. When all document sheets are in the tray, then the recirculating feeder, copier and memory operate to produce a production run with each copy sheet having acceptable contrast and density.
REFERENCES:
patent: 4179215 (1979-12-01), Hage
patent: 4294536 (1981-10-01), Paxton
patent: 4350435 (1982-09-01), Fiske et al.
patent: 4365889 (1982-12-01), Silverberg
Eastman Kodak Company
Prescott A. C.
Rushefsky Norman
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