Electrophotography – Document handling – Copy
Patent
1997-05-19
1998-10-06
Royer, William J.
Electrophotography
Document handling
Copy
399395, 399396, G03G 1500
Patent
active
058191534
ABSTRACT:
A paper feeding unit for an electrophotographic printing apparatus which can prevent print media from being drawn to the right or left during conveyance. The paper feeding unit includes a printing station for printing each sheet of paper; a first feeding unit having a main paper cassette for containing a stack of paper, a first pick-up roller for feeding an uppermost sheet of paper from the main paper cassette to a driving roller, and first and second conveyance rollers which are coactive with the driving roller for conveying each sheet of paper to the printing station; and a second feeding unit having an option cassette for containing a stack of paper, a second pick-up roller for feeding an uppermost sheet of paper from the option cassette, and first and second relay rollers for conveying each sheet of paper fed from the second pick-up roller to the driving roller for conveyance to the printing station, wherein the first relay roller of said second feeding unit exhibits an outer diameter larger than an outer diameter of said second conveyance roller of the first feeding unit in order to prevent paper from being drawn to one side during conveyance.
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Bushnell Esq. Robert E.
Royer William J.
Samsung Electronics Co,. Ltd.
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