Laser beam printer capable of forming line images having stable

Details Laser beam printer capable of forming line images having stable Laser beam printer capable of forming line images having stable

1992-08-27

1994-07-12

Grimley, A. T.

Photocopying

Contact printing

Light boxes

346160, 355208, G03G 2100

Patent

active

053293398

ABSTRACT:
An image forming apparatus wherein a latent image is electrostatically formed on a surface of a photosensitive member and developed by a developing device. In the above image forming apparatus, the reference line image is formed on the surface of the photosensitive member outside the effective image forming area. The width of the reference line image is detected by a sensor. A developing bias voltage applied to the developing device is controllably changed based on the result of detection by a sensor.

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patent: 4984022 (1991-01-01), Matsushita et al.
patent: 5099279 (1992-03-01), Shimizu
patent: 5148289 (1992-09-01), Nishiyama et al.

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