Photocopying – Contact printing – Light boxes
Patent
1989-06-06
1991-08-06
Moses, R. L.
Photocopying
Contact printing
Light boxes
355246, 355326, 118657, G03G 1509, G03G 1501
Patent
active
050381768
ABSTRACT:
An image forming apparatus having plural developing devices, comprising: a photosensitive member arranged rotatably in one direction and holding an electrostatic latent image corresponding to an original image; a developing sleeve rotatably arranged in each developing device at a position confronting said photosensitive member to transport a developer; a device for simultaneously driving for rotation of each of said developing sleeves in said developing devices; and an adjusting mechanism for adjusting operation of said developing devices so that in a region where said developing sleeves confront with said photosensitive member, a developer packaged density (F) in said developing device arranged at an upstream side in a rotational direction of said member is larger than that of said developing device arranged at a downstream side in the rotational direction of said member, which is
REFERENCES:
patent: 4282827 (1981-08-01), Andrews
patent: 4398817 (1983-08-01), Nishimura et al.
patent: 4591261 (1986-05-01), Saruwatari et al.
patent: 4816869 (1989-03-01), Kasai et al.
patent: 4910535 (1990-03-01), Yoshino et al.
Nagao Taisuke
Toda Kunio
Yokoyama Tomoaki
Minolta Camera Kabushiki Kaisha
Moses R. L.
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