EPSON AcuLaser C1900/AcuLaser C900 Revision B
Operating Principles Description of Mechanisms 107
2.4.5.3  Transfer Belt Cleaner Mechanism
TRANSFER BELT CLEANER
The cleaning blade removes the residual toner on the transfer belt.
Figure 2-18. Transfer Belt Cleaner Mechanism
TRANSFER BELT CLEANER SEPARATION
The transfer belt cleaner is separated by turning on and off of the Cleaner Pressure Flapper 
Solenoid  (SL4) which activates rotation of the cam on the printer body.
(Driven by the main motor)
The cam driven on the printer body is brought into contact directly with the cleaner housing 
to estrange the transfer belt cleaner. As the cam rotates and the belt cleaner position 
detection sensor (PC9) is turned off, the transfer belt cleaner is detected to be separated.
Figure 2-19. Transfer Belt Cleaner Separation
Cam
Belt Position Detection Sensor (PC5)
Cleaner Pressure Flapper Solenoid (SL4)
Cleaner Counter-roller
Cleaning Blade
ON
OFF
ON