Sheet jamming-proof mechanism for paper-feeding system

Details Sheet jamming-proof mechanism for paper-feeding system Sheet jamming-proof mechanism for paper-feeding system

1997-05-30

1999-06-15

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

With means to align sheet

271240, 271248, 27126501, 27126502, 271902, 271261, B65H 702

Patent

active

059114177

ABSTRACT:
A sheet jamming-proof mechanism for a paper-feeding system provided outside of a left and a right paper boundaries delimited along a predetermined paper-feeding pathway to supervise the paper-feeding direction for preventing sheet jamming. The sheet jamming-proof mechanism includes: a plurality of touch plates, each touch plate being closely contiguous to the outside of the left or right boundary of paper-feeding pathway and being elastically hold by the paper-feeding system so that the touch plate is forced to shift when the contact plate is pressed by a deviated paper; a plurality of detectors, each detector locates in the vicinity of the touch plate to sense the shift of the touch plate; and a controller which controls the driving device of the paper-feeding system to alter the ordinary paper-feeding operation for preventing sheet jamming when shift of any touch plate is sensed by the detectors.

REFERENCES:
patent: 5091754 (1992-02-01), Abe et al.
patent: 5110106 (1992-05-01), Matsumura et al.

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