Moving document imaging system with retard separator wear debris

Details Moving document imaging system with retard separator wear debris Moving document imaging system with retard separator wear debris

1998-11-13

1999-11-02

Grimley, Arthur T.

Electrophotography

Internal machine environment

Particle or contaminant control

15 151, 271121, 271167, 399367, G03G 2100

Patent

active

059786221

ABSTRACT:
In a moving documents imaging system in which documents are separated and sequentially fed from a stack thereof to an imaging platen surface by a separator-feeder system comprising an elastomeric document feeding roller and a frictionally engaging retard member producing elastomeric wear particles optically contaminating the imaging platen surface, an electrostatically attractive shield member is closely spaced from and closely partially surrounding the elastomeric document feeding roller surface to attract and retain these elastomeric wear particles to the interior surface of the shield member so that these particles are not transported by documents to the imaging surface and may be removed by removal of the shield or the entire separator-feeder system. The same shield member may extend to be additionally closely spaced around an elastomeric nudger wheel upstream of the sheet feeding roller. The system may further include a simple triboelectric charging member engaging the document feeding roller surface.

REFERENCES:
patent: 4750018 (1988-06-01), Gooray et al.
patent: 5435538 (1995-07-01), Billings et al.
patent: 5534989 (1996-07-01), Rubscha et al.
patent: 5717505 (1998-02-01), Chang et al.

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