Photocopying – Contact printing – Light boxes
Patent
1989-03-16
1990-03-20
Prescott, A. C.
Photocopying
Contact printing
Light boxes
355 21, 355203, G03G 1500
Patent
active
049105515
ABSTRACT:
An image forming apparatus with a position detection capability to prevent an image forming operation starting signal being generated by mistake to thereby start the image forming operation when an image forming apparatus is not in its normal installed state for use, for example, when the apparatus is in its carried state or its erected state with one side thereof facing downward.
REFERENCES:
patent: 4465359 (1984-08-01), Nakahata
patent: 4609281 (1986-09-01), Miyai et al.
patent: 4635010 (1987-01-01), Miyai et al.
patent: 4684235 (1987-08-01), Kohmoto et al.
patent: 4692018 (1987-09-01), Tamura
IBM Technical Disclosure Bulletin, vol. 21, No. 4, Sep. 1978, pp. 1345-1346.
Ikemoto Isao
Kanemitsu Shinji
Kitajima Hajime
Mizutani Morikazu
Onoda Shigeyoshi
Canon Kabushiki Kaisha
Prescott A. C.
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