18-9.Aidc Sensor Shutter Mechanism - Minolta CF1501 Service Manual

18-9. AIDC Sensor Shutter Mechanism
• In the 2nd image transfer stage, the shutter is moved to cover the AIDC Sensors to pre-
vent them from being dirtied with toner.
• The shutter operation is in synchronism with the pressure and retraction motion of the
2nd Image Transfer Roller.
2nd Image Transfer Roller
Retracted
Pressed
AIDC Sensor 1
(UN20)
Shutter
Shutter
Uncovers sensors
Covers sensors
2nd Image Transfer Roller
AIDC Sensor 2
(UN21)
Shutter
M-76
4004M587AA
Shutter Open/Close Lever
4004M589AA