Mechanism for preventing skew of cut paper sheet

Details Mechanism for preventing skew of cut paper sheet Mechanism for preventing skew of cut paper sheet

1989-12-11

1992-03-03

Bollinger, David H.

Sheet feeding or delivering

Feeding

With means to align sheet

271184, 271186, 271248, 271291, B65H 900

Patent

active

050925792

ABSTRACT:
A mechanism for preventing the skew of a cut paper sheet, for use in a duplex printing machine or a paper reversing mechanism having a switchback mechanism for switching the cut sheet backward from its trailing end by reverse rollers and so on immediately after the cut sheet subjected to the printing at a printing portion is once discharged onto a reverse plate by paper discharge rollers and so on, the mechanism comprising: a plurality of paper guides formed on a surface of the reverse plate of the switchback mechanism so as to limit the lateral movement of the cut sheets of several kinds in the direction of the width thereof, the paper guides being arranged in a manner to correspond respectively to the widths of the cut sheets of several kinds to be discharged onto the reverse plate, the distance between each two paper guides for guiding a respective one of the cut sheets being slightly greater than the width of the corresponding cut sheet, and the paper guide for guiding the wider cut sheet being higher than the paper guide for guiding the narrower cut sheet, whereby each of the cut sheets discharged onto the reverse plate is guided by the corresponding paper guides according to the size of the cut sheet, and is switched backward, thereby preventing the skew of the cut sheet.

REFERENCES:
patent: 4657239 (1987-04-01), Ikesue et al.
patent: 4736937 (1988-04-01), Okuda et al.

Affiliated with

Also associated with

Rating

Mechanism for preventing skew of cut paper sheet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanism for preventing skew of cut paper sheet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanism for preventing skew of cut paper sheet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-267233