Pressure Roller Lift Mechanism - Ricoh D014 Service Manual

Fusing Unit

6.10.8 PRESSURE ROLLER LIFT MECHANISM

A pressure roller lift mechanism raises the pressure roller against the hot roller and fusing
unit above and then lowers at the end of the job.
When a job starts, the pressure roller lift motor [1] switches on rotates the cam shaft
[2].
The cams [3] and [4] raise the pressure roller against the hot roller and fusing belt.
The motor (a stepper motor) stops when the actuator activates the pressure roller lift
sensor [5] and the pressure roller remains up.
At the end of the job, the motor reverses and lowers the pressure roller away from the
hot roller.
The hot roller and pressure roller remain separated while the machine is idle. This prevents
the pressure roller and hot roller from warping and thus prolongs their service lives.
D014/D015/D078/D079
CÓPIA NÃO CONTROLADA
6-96
CÓPIA NÃO CONTROLADA
SM