Image reading apparatus which calculates an original reading dom

Details Image reading apparatus which calculates an original reading dom Image reading apparatus which calculates an original reading dom

1984-12-05

1987-11-24

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250578, 358293, H01J 516

Patent

active

047091479

ABSTRACT:
An image reading apparatus has a CCD, a reference point on a reference plate, an image signal reading circuit, an image signal control circuit, and a CPU. When an optical element is shifted from its normal position, such a positional error can be automatically corrected without requiring readjustment of the optical element.

REFERENCES:
patent: 4327287 (1982-04-01), Saito et al.
patent: 4459619 (1984-07-01), Yoshida
patent: 4465939 (1984-08-01), Tamura
patent: 4518999 (1985-05-01), Kurata et al.

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