Method of and system for cleaning roller members

Details Method of and system for cleaning roller members Method of and system for cleaning roller members

1994-12-23

1996-07-02

Moses, R. L.

Photocopying

Contact printing

Light boxes

355219, 355271, 355296, G03G 2100

Patent

active

055327958

ABSTRACT:
The clean surfaces of rollers in contact with photoconductive element of an image forming apparatus are cleaned of toner and other contaminants by increasing pressure between the contact surfaces of the roller and the photoconductive element during non-sensitive phases of operation, so that toner and other contaminants are transferred from the rollers to the photoconductive element. Alternatively, the rotational speed of the rollers are decreased, increased or reversed during non-sensitive phases of operation to effect transfer of toner and other contaminants to the photoconductive element for removal by the development station and/or development station. The system and cleaning method, which is particularly useful for charging, transfer and discharging rollers, are applicable to image forming apparatus wherein accumulation of toner and other contaminants decreases the quality of reproduction, require troublesome maintenance, decrease the life of the rollers requiring replacement, and prevents a compact image forming apparatus.

REFERENCES:
patent: 4339195 (1982-07-01), Gabelman
patent: 5132738 (1992-07-01), Nakamura et al.
patent: 5150165 (1992-09-01), Asai
patent: 5182604 (1993-01-01), Asai
patent: 5298953 (1994-03-01), Lindblad
patent: 5303014 (1994-04-01), Yu et al.
patent: 5331383 (1994-07-01), Nou et al.
patent: 5371575 (1994-12-01), Sekino et al.

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