Bowed support for belt photoreceptor to equalize blade cleaning

Details Bowed support for belt photoreceptor to equalize blade cleaning Bowed support for belt photoreceptor to equalize blade cleaning

1992-07-28

1993-09-07

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355299, G03G 500

Patent

active

052433854

ABSTRACT:
Apparatus for increasing the cleaning efficiency of rigid blade cleaners used to clean compliant belt-type photoreceptors in low to high volume, black and white and color electrophotographic copiers and printers. A center portion of a backing photoreceptor support roll is proportionately bowed outward toward the cleaning blade to compensate for nonuniform belt tension under the blade cleaner due to the deflection of the backing support roll. In particular, the appropriate amount of bow in the center portion of a backing photoreceptor support roll or, alternatively, channel backer, results in a uniform cleaning blade load and, therefore, enhanced cleaning across a compliant belt photoreceptor having non-uniform belt tension, that is inexpensive and easy to manufacture and implement.

REFERENCES:
patent: 3984183 (1976-10-01), Maksymiak
patent: 4499849 (1985-02-01), Tomita et al.
patent: 4630920 (1986-12-01), Silverberg et al.
patent: 4690544 (1987-09-01), Forbes, II et al.
patent: 4812878 (1989-03-01), Kaieda
Thayer et al.; EPA #322,229; Jun. 1989.

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