Density detecting apparatus which detects image density accordin

Details Density detecting apparatus which detects image density accordin Density detecting apparatus which detects image density accordin

1984-07-06

1987-05-05

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3SH, 355 14SH, 355 8, 271258, 271265, G03G 1500

Patent

active

046627383

ABSTRACT:
An image processing apparatus for a copying machine with an ADF, a facsimile or a printer, has a platen for placing originals or documents thereon, an optical system for scanning the original image, an AE measurement circuit for measuring the intensity over the entire surface of the original, a document convey mechanism for feeding/ejecting the original to and from the exposure position, and a control section including a micro computer for controlling the operation sequence. An image of optimal intensity can be reproduced for any type of original including an original having both light and dark portions.

REFERENCES:
patent: 4124295 (1978-11-01), Gardiner
patent: 4239374 (1980-12-01), Tatsumi et al.
patent: 4352553 (1982-10-01), Hirahara

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