Photocopying – Contact printing – Light boxes
Patent
1991-07-23
1994-04-05
Picard, Leo P.
Photocopying
Contact printing
Light boxes
355282, 355285, G03G 2100
Patent
active
053009819
ABSTRACT:
An electrophotographic printing apparatus includes a paper conveyor path, a photosensitive drum arranged on the paper conveyor path, a conveyor unit for conveying paper along the conveyor path, an image forming unit for forming an electrostatic latent image on the photosensitive drum, developing the electrostatic latent image by depositing a developer on the electrostatic latent image, and transferring the developer image onto paper, and a fixing unit, arranged on the paper conveyor path, for fixing the transferred image on the paper by heat and pressure. The printing apparatus further comprises a control circuit for detecting overheating of the fixing unit and commanding the conveyor unit to stop conveyance of paper after confirming that no paper is present in the fixing unit when the fixing unit is detected to be overheating.
REFERENCES:
patent: 3586450 (1971-06-01), Hosey et al.
patent: 3705289 (1972-12-01), Szostak et al.
patent: 3748088 (1973-07-01), Mooney et al.
patent: 3791732 (1974-02-01), Mihalik et al.
patent: 3804516 (1974-04-01), De Mott
patent: 4118178 (1978-10-01), Calvi et al.
patent: 4168903 (1979-09-01), Tolmie
patent: 4402594 (1983-09-01), Pelda et al.
patent: 4569585 (1986-02-01), Masuda
patent: 4613227 (1986-09-01), Honjo
patent: 4740671 (1988-04-01), Kuroda
patent: 4956651 (1990-09-01), Emori
Patent Abstracts of Japan; vol. 5, No. 92, p. 66; Jun. 1981; & JP A-56 038 071 (Canon).
IBM Technical Disclosure Bulletin, vol. 21, No. 2, Jul. 1978, pp. 481-482 "Copier Fuser Controls".
Horgan Christopher
Picard Leo P.
Tokyo Electric Co. Ltd.
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