Fusing Entrance Guide Shift - Ricoh K-C3 Service Manual

B245/B276/B277/B268/B269 Service Manual
The hot roller [L] takes a shorter time to become hot enough if it is not turning during
warming up. When, however, the fusing temperature (at the start) is low, the temperature of
the hot-roller surface may become uneven.
You can disable this control (
Drive Release Solenoid
Solenoid Drive gear
Off Engaged
On Released
The fusing drive release solenoid [E] is on the rear end of the gear holder. When the
solenoid is off, the spring [D] pulls the gear holder, and the drive gear engages with the
fusing unit drive gear. When the solenoid is on, it pulls the top end of the gear holder to the
right, and the gear holder turns clockwise. As a result, the drive gear is released from the
fusing unit drive gear.
The release solenoid comes on when you turn on the main switch if the fusing temperature
is 18C or higher. The solenoid releases the drive gear from the fusing unit drive gear. The
fusing lamps heat the hot roller [L] more effectively since the heat is not conducted to the
pressure roller [K]. When the hot roller becomes hot enough, the release solenoid turns off,
letting the drive gear engage with the fusing unit drive gear.

Fusing Entrance Guide Shift

The entrance guide [A] is adjustable for paper thickness to prevent creasing. The outer
screw holes [B] on each side are used as the default setting.
p.135).
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