Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1984-07-03
1985-09-03
Moses, R. L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 3FU, 219216, G03G 1520
Patent
active
045389020
ABSTRACT:
An image formation apparatus includes a device for forming an image on a sheet fed thereto, a fixing device for heat-fixing the image, a detector for detecting the temperature of the fixing device, a temperature controller for controlling the electric power supplied to a heat source in accordance with the detected temperature, a detector for detecting disconnection of an element in the temperature detector, and a controller for operating the disconnection detector after a predetermined time from a point of time at which the fixing device starts to be heated.
REFERENCES:
patent: 3735092 (1973-05-01), Traiser
patent: 3791732 (1974-02-01), Mihalik et al.
patent: 3916256 (1975-10-01), Kotani
patent: 3985433 (1976-10-01), Calvi
patent: 4006985 (1977-02-01), Hutner
patent: 4007456 (1977-02-01), Paige et al.
patent: 4104692 (1978-08-01), Sudo et al.
Inuzuka Tsuneki
Ishida Masato
Kawatsura Yoshihiro
Canon Kabushiki Kaisha
Moses R. L.
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