Sheet transport system with sheet velocity manipulation

Details Sheet transport system with sheet velocity manipulation Sheet transport system with sheet velocity manipulation

1991-09-04

1993-07-13

Grimley, A. T.

Photocopying

Contact printing

Light boxes

271202, 271204, 271270, 271277, 355275, 355326, G03G 2100

Patent

active

052278549

ABSTRACT:
A method and apparatus for manipulating the velocity of a copy sheet in a color reprographic system creates a buckle in the copy sheet to decouple accelerations of the leading edge of the copy sheet from the portion that is in contact with the photoreceptor belt and reduces the buckle on long copy sheets for which the buckle can become large enough that the toner image on the body of the copy sheet can become disrupted by contact with stationary portions of the system. The method and apparatus also accelerates the leading edge of the copy sheet as the trailing edge disengages from the photoreceptor belt to prevent the uncontrolled trailing edge of lightweight copy sheets from contacting stationary portions of the system.

REFERENCES:
patent: 2571806 (1951-10-01), Wood
patent: 4849795 (1989-07-01), Spehrley, Jr. et al.
patent: 4891674 (1990-01-01), Seyfried
patent: 5075734 (1991-12-01), Durland et al.
patent: 5138399 (1992-08-01), Castelli et al.

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