Ricoh B286, Service Manual

Page: 590 / 622

Fusing Unit
B286/B289 6-82 SM
6.9.8 WRINKLE PREVENTION
Motor Speed Control
During normal operation, the hot roller [A] (controlled by the fusing motor) is slightly faster
than the registration rollers [B] (controlled by the main motor).
This stretches the paper between the registration rollers and the fusing unit to keep the
paper from wrinkling inside the fusing unit.
Inching Control
This machine also has an inching control feature that controls the temperature of the
pressure roller to prevent wrinkling. (See Section 6.9.5 “Temperature Control.”)