Sheet conveying method and apparatus

Details Sheet conveying method and apparatus Sheet conveying method and apparatus

1997-04-28

1999-10-19

Ellis, Christopher P.

Sheet feeding or delivering

Feeding

Separator and conveyor

271 317, 271242, B65H 500

Patent

active

059675063

ABSTRACT:
A printer constituted to drive a pair of feed rollers FR3 and a pair of resist rollers RR so that the leading end of paper P may one stop at a position of a paper sensor S1 at the upstream side when reaching the resist rollers RR and then the entire paper P may be conveyed at a second conveying speed, when conveying a sheet of paper P at a relatively fast first conveying speed by the feed rollers FR3, and conveying at a second conveying speed lower than the first conveying speed by aligning the leading end by the resist rollers RR. It solves the problems of error in printing starting position due to slipping-out of the leading end of the paper from the resist rollers, failure in control to a desired deflection amount when deflecting the paper by colliding with the resist rollers, impact noise when the paper collides with the resist rollers, especially impact noise in thick paper, and possibility of oblique running after passing through the resist rollers.

REFERENCES:
patent: 4645192 (1987-02-01), Watanabe
patent: 5634635 (1997-06-01), Kobayashi et al.
patent: 5775685 (1998-07-01), Yamaoka et al.

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