Photocopying – Projection printing and copying cameras – Methods
Patent
1985-11-20
1986-12-09
Prescott, A. C.
Photocopying
Projection printing and copying cameras
Methods
355 14R, 355 14C, 355 55, 355 3R, G03G 1500
Patent
active
046277218
ABSTRACT:
The present invention is concerned with the automatic adjustment of the optical components in an optical scanning system after the tech rep has visually inspected sample copies with a test pattern and entered adjustment numbers at the control console. The control determines the optimum relative position of the optical components for a focus and various magnification ratios and stores these relationships as reference numbers in memory for reference at the selected magnification ratios. These reference numbers can be altered as future copies are inspected by the tech rep and appropriate evaluation numbers are entered into the control. In a specific embodiment, one sample copy is compared by the tech rep with the test pattern to adjust the magnification setting and a sequence of five set copies are produced to coarse adjust and fine adjust focus.
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patent: 4460268 (1984-07-01), Forrester
Buchar Wayne A.
Nguyen Tuan A.
Sosinski Ronald T.
Chapuran R. F.
Prescott A. C.
Xerox Corporation
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