Electrophotography – Document handling – Copy
Patent
1999-01-27
1999-11-02
Smith, Matthew S.
Electrophotography
Document handling
Copy
399388, 399394, G03G 1500
Patent
active
059786426
ABSTRACT:
A printing system for printing multiple colors on a sheet of print media includes an electrophotographic printer having a photoconductor drum and a transfer roller configured to interact in co-rotation with the drum during transfer of a color image plane from the drum onto a sheet of print media passed therebetween. A paper drive sheet feeder system is included which has a grit shaft extending generally transverse of a paper travel path, a first pinch roller configured to interact in co-rotation with the grit shaft along a first edge of a sheet of print media, and a second pinch roller configured to interact in co-rotation with the grit shaft along a second edge of the sheet of print media. The grit shaft is driven in rotation to drive the sheet of print media along a bidirectional sheet travel path such that a plurality of different colored image planes is superposed onto the sheet of print media in accurate registration therebetween. A method for printing multiple colors is also described.
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patent: 5212532 (1993-05-01), Storlie
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patent: 5727890 (1998-03-01), Stodder et al.
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Arcaro David J.
Bearss James G.
Hewlett--Packard Company
Smith Matthew S.
Tran Hoan
LandOfFree
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