Photocopying – Contact printing – Light boxes
Patent
1991-01-02
1991-12-10
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355228, G03G 2100
Patent
active
050722603
ABSTRACT:
An image forming apparatus includes a movable photosensitive member, a charger for uniformly charging the photosensitive member, exposure device for illuminating an original and exposing the photosensitive member charged by the charger to the light from the original, a scanner for scanning by a laser beam the photosensitive member charged by the charger, the scanner including a deflector for deflecting the laser beam, and wherein the deflector is disposed upstream of an exposure position of the exposure device with respect to movement direction of the photosensitive member, and a scanning position of the scanner is disposed downstream of the exposure position. The laser beam forms a margin on the photosensitive member for the leading edge of a copy sheet.
REFERENCES:
patent: 3778148 (1973-12-01), Fujitsuka et al.
patent: 4046471 (1977-09-01), Branham et al.
patent: 4047811 (1977-09-01), Allis et al.
patent: 4354757 (1982-10-01), Ritzerfeld
patent: 4477179 (1984-10-01), Inuzuka et al.
patent: 4538905 (1985-09-01), Griego et al.
patent: 4655579 (1987-04-01), Adachi et al.
patent: 4728985 (1988-03-01), Nakashima et al.
Braun Fred L.
Canon Kabushiki Kaisha
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