Device and apparatus for detecting the size of an original place

Details Device and apparatus for detecting the size of an original place Device and apparatus for detecting the size of an original place

1991-10-15

1993-06-29

Grimley, A. T.

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Contact printing

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355 68, 355 75, 355233, G03G 1500

Patent

active

052239047

ABSTRACT:
An image-forming apparatus has a first sensor for sensing whether or not an original is placed on an original table, a second sensor for sensing the size of the original placed on the original table, and a setting key for selectively setting an original size detection mode in which the second sensor is allowed to perform original size detection. When the first sensor senses the presence of the original in the original size detection mode set by the setting key, the second sensor is made to start the original size detection.

REFERENCES:
patent: 3630620 (1971-12-01), Fackler
patent: 4456372 (1984-06-01), Yamauchi
patent: 4470695 (1984-09-01), Holzhauser et al.
patent: 4817933 (1989-04-01), Honjo et al.
patent: 4922350 (1990-05-01), Rombola et al.
patent: 4963934 (1990-10-01), Nezu
patent: 4978992 (1990-12-01), Kusumoto et al.

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