Sheet feeding or delivering – Feeding – Separators
Patent
1998-01-30
2000-02-08
Bollinger, David H.
Sheet feeding or delivering
Feeding
Separators
271225, 271902, B65H 352
Patent
active
060220155
ABSTRACT:
A paper feed unit of a printer which includes a hopper on which a large number of sheets of recording paper can be stacked. A paper feed roller comes into contact with a portion of the uppermost sheet of paper on the hopper. A separating pad is opposed to the paper feed roller wherein the sheet of paper passes between the paper feed roller and the separating pad when the paper feed roller is normally rotated and the second and after sheets of paper are restricted by the separating pad. A mechanism is provided for rotating the paper feed roller forwardly and reversely. The printer determines completion of a printing operation and controls the mechanism for rotating based on a printing command. The reverse rotating is controlled to rotate the paper feed roller by a predetermined number of revolutions when the printing command is not given to the successive sheet of paper after a predetermined period of time has passed from completion of the printing operation conducted on an arbitrary sheet of paper.
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Bollinger David H.
PFU Limited
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