Apparatus and method for sheet registration using a single senso

Details Apparatus and method for sheet registration using a single senso Apparatus and method for sheet registration using a single senso

1998-01-08

1999-03-30

Burr, Edgar

Typewriting machines

Sheet or web

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

271227, 271250, 399395, B41J 1142

Patent

active

058879960

ABSTRACT:
A deskewing and registering device for an electrophotographic printing machine. A single sensor determines the position and skew of a sheet in a paper path and generate signals indicative thereof. A pair of independently driven nips forward the sheet to a registration position in skew and at the proper time based on signals from a controller which interprets the position signals and generates the motor control signals. An additional single sensor can be used at the registration position to provide feedback for updating the control signals as rolls wear or different substrates having different coefficients of friction are used.

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