Photocopying – Contact printing – Light boxes
Patent
1992-11-16
1994-04-26
Smith, Matthew S.
Photocopying
Contact printing
Light boxes
219216, 355204, 355208, 355289, 355290, G03G 1520
Patent
active
053071344
ABSTRACT:
An electrophotographic apparatus for providing a thermally fixed toner image on a recording medium and wherein the fixing temperature can be selectively canceled. The apparatus is of the type including: an image forming unit for forming a toner image to be printed and for then transferring the toner image onto a recording medium, a feed mechanism for feeding a recording medium supplied via one of at least two guide paths to the image forming unit, a fixing unit for thermally fixing the transferred toner image on the recording medium, and a temperature control unit for setting a fixing temperature for the fixing unit. A controller is provided to determine the particular guide paths used to supply the recording medium and to command the temperature control unit to set a fixing temperature in accordance with the determined guide path. Preferably, one of the guide path is supplied by a sheet feeder and the other guide path is a horizontal path permitting manual insertion, and the controller causes a lower fixing temperature to be set when the recording medium is supplied by the feeder and a higher fixing temperature when the recording mechanism is supplied via the horizontal guide path.
REFERENCES:
patent: 4349269 (1982-09-01), Okada
patent: 4373801 (1983-02-01), Itoh
patent: 4603245 (1986-07-01), Yagasaki
patent: 4719489 (1988-01-01), Ohkubo et al.
patent: 4998121 (1991-03-01), Koh et al.
patent: 5012286 (1991-04-01), Kawano et al.
patent: 5164570 (1992-11-01), Okimura
Morimoto Koji
Nakajima Shigeki
OKI Electric Industry Co., Ltd.
Smith Matthew S.
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