Image-forming apparatus with a photosensitive member and a charg

Details Image-forming apparatus with a photosensitive member and a charg Image-forming apparatus with a photosensitive member and a charg

1994-06-01

1996-04-30

Grimley, A. T.

Photocopying

Contact printing

Light boxes

361225, G03G 1502

Patent

active

055129820

ABSTRACT:
An image-forming apparatus for forming an image, especially a halftone image, by using a photosensitive member, having a charging member for charging the photosensitive member, a mechanism for relatively moving the charging member and the photosensitive member, a voltage source for applying an oscillatory voltage to the charging member such that a Vp/f ratio is about from 0.08 to 0.42, wherein the Vp represents a relative moving speed between the charging member and the photosensitive member and the f represents a frequency of the oscillatory voltage, an exposing member for exposing the charged photosensitive member to form an electrostatic latent image, and a developing unit for developing the electrostatic latent image.

REFERENCES:
patent: 4727453 (1988-02-01), Ewing
patent: 5126913 (1992-06-01), Araya et al.
patent: 5146281 (1992-09-01), Kisu
patent: 5177534 (1993-01-01), Kisu et al.
patent: 5221946 (1993-06-01), Kohyama
patent: 5351109 (1994-09-01), Haneda

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