Developing process for forming image having high quality

Details Developing process for forming image having high quality Developing process for forming image having high quality

1990-06-27

1991-10-22

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118657, 118658, G03G 1509

Patent

active

050600230

ABSTRACT:
The present invention relates to a developing process for forming a high-quality image in the electrophotography. In this developing process, a two-component type developer is used and the moving direction of a developing sleeve is the same as the moving direction of a photosensitive material drum at the position of the sliding contact of the photosensitive material drum with a magnetic brush of the developer. In carrying out this forward direction sliding contact developing process, by setting the angle .theta. of a fixed main developing pole to the direction reverse to the moving direction of the sleeve from the line connecting the centers of the drum and sleeve and the drum/sleeve diameter ratio within certain specific ranges, the reproducibility of fine lines and the image density can be simultaneously improved very effectively in a well-balanced state, and a toner image having a high quality can be formed.

REFERENCES:
patent: 4576465 (1986-03-01), Fushida et al.

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