Sheet meandering movement preventing method

Details Sheet meandering movement preventing method Sheet meandering movement preventing method

1989-07-07

1990-10-09

Yuen, Henry C.

Heating

Processes of heating or heater operation

Continous strip, strand or web passed longitudinally through...

432 59, 219216, 219469, F27B 928

Patent

active

049617044

ABSTRACT:
In a printing sheet conveying device in which a sheet bearing a toner image is passed through a heating roll and a pressure roll, and which has means for changing the right and left contact pressures of these rolls to correct the meandering movement of the sheet when conveyance of the sheet is started; in which when conveyance of the sheet is started, the contact pressure of the rolls is made higher on one of the right and left sides than on the other side, and in a predetermined period of time the contact pressures on both sides are made equal to each other.

REFERENCES:
patent: 4119831 (1978-10-01), Sato
patent: 4440486 (1984-04-01), Isaka et al.
patent: 4473290 (1984-09-01), Iwao

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