Method of determining a relative speed between independently...

Details Method of determining a relative speed between independently... Method of determining a relative speed between independently...

2006-05-23

2006-05-23

Smith, R. Alexander (Department: 2859)

Electrophotography

Control of electrophotography process

Control of fixing

C399S396000

Reexamination Certificate

active

07050734

ABSTRACT:
A method of determining a relative speed between two separately driven members in an image forming apparatus, includes the steps of: transporting a print medium using a print media transport assembly including an exit nip, the print media transport assembly operable at a first transport speed; driving a rotatable member associated with an entrance nip using an electric motor at a second transport speed which is independent from the first transport speed; transferring the print medium from the exit nip to the entrance nip; detecting an electrical characteristic of the motor when the print medium is present in each of the exit nip and the entrance nip; and determining a relative speed between the first transport speed and the second transport speed.

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