Sheet carrying apparatus

Details Sheet carrying apparatus Sheet carrying apparatus

1995-07-19

1997-03-11

Eickholt, Eugene H.

Typewriting machines

Sheet or web

Including skew correction responsive to position of sheet or...

101228, 271227, 25055937, B41J 1142

Patent

active

056094280

ABSTRACT:
A sheet carrying apparatus reduces skew of a sheet during carriage, and realizes high-quality print. A position detecting sensor detects a position in a direction perpendicular to a sheet carrying direction of the sheet carried by a sheet carrying roller. A skew angle of the sheet is calculated depending upon a deviation of the detected position from a predetermined reference position. Load rollers are on the right and left sides with respect to a sheet center line in the sheet carrying direction, and are respectively opposed to following rollers through the sheet so as to bring the sheet into pressure contact. A torque limiter to apply a braking force to the load roller, and the load roller are coupled or released by electromagnetic clutches. Thereby, the carrying forces can independently be controlled on the right and left sides of the sheet depending upon the skew angle.

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