Photoconductor drum cleaning apparatus in an...

Details Photoconductor drum cleaning apparatus in an... Photoconductor drum cleaning apparatus in an...

2011-08-02

2011-08-02

Gray, David M (Department: 2852)

Electrophotography

Cleaning of imaging surface

Plural diverse

C399S249000, C015S256510

Reexamination Certificate

active

07991343

ABSTRACT:
A photoconductor drum cleaning apparatus in an electrophotographic printer is disclosed which is simple in makeup, which allows a wiping roll to be rotated to follow rotation of the photoconductor drum is rotated and to be serviced for a prolonged life and is capable of performing an improved cleaning operation. To this end, the photoconductor drum1comprises: disposed in order from upstream in the direction of the photoconductor drum, a blade scraper11contacting with the surface of the rotating photoconductor drum and a wiping roll12rotating reversely in rubbing contact with the surface of the rotating photoconductor drum; disposed upstream of an area of rubbing contact of the rotating wiping roll with the photoconductor drum, a squeezing roll13rotating normally in pressure contact with the surface of the rotating wiping roll; and disposed downstream of an area of rubbing contact of the rotating wiping roll with the photoconductor drum and upstream of the rotating squeeze roll, a brush roll14rotating normally or reversely in pressure contact with the surface of the rotating wiping roll, the brush roll having a portion of its outer periphery immersed in a cleaning carrier solution.

REFERENCES:
patent: 2004-271833 (2004-09-01), None
patent: 2007011142 (2007-01-01), None

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