Photocopying – Contact printing – Light boxes
Patent
1991-04-24
1992-08-11
Grimley, A. T.
Photocopying
Contact printing
Light boxes
219 1057, 219216, 355282, 355285, G03G 1520
Patent
active
051383926
ABSTRACT:
An electrophotographic image forming apparatus for forming a color toner image by a developing device and fixing the toner image by a fixing device including top and bottom rollers. When OHP mode for forming images on transparency sheets is selected, the time required for fixing the toner image is prolonged so as to assure the transparency of the image fixed to a recording member. That is, if the size of the transparency sheet is larger than a predetermined value, the transparency sheet is sent to a returning path which returns the recording member discharged from the fixing device to the fixing device again, and if the size of the transparency sheet is smaller than the predetermined value, the fixing device is operated more slowly than a case of forming images on non-transparency sheets. Further, when the OHP mode is selected, heating power is supplied to both top and bottom fixing rollers, and when the OHP mode is not selected, the heating power is supplied to the top fixing roller only.
REFERENCES:
patent: 4549803 (1985-10-01), Ohno et al.
patent: 4593992 (1986-06-01), Yoshinaga et al.
patent: 5041718 (1991-08-01), d'Hondt et al.
Ideyama Hiroyuki
Kinoshita Naoyoshi
Kusumoto Keiji
Grimley A. T.
Minolta Camera Kabushiki Kaisha
Stanzione P. J.
LandOfFree
Image forming apparatus with a fixing device capable of fixing a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image forming apparatus with a fixing device capable of fixing a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus with a fixing device capable of fixing a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-350096