Canon iR4570 Series Service Manual page 322

Chapter 7
F-7-117
When you have disconnected the connector [1], be
sure to take care so that it will not come into contact
with the PCB that is mounted to the laser scanner unit.
(The PCB is equipped with a laser intensity
adjustment variable resistor. Contact with the PCB
can change the adjustment setting.)
2) Open the wire saddle [1], and disconnect the
connector [2].
F-7-118
3) Remove the screw [1], and detach the fixing [2].
7-46
F-7-119
4) Lift the front of the laser unit [1], and slide it to the
front.
F-7-120
When sliding out the laser scanner unit, be sure to take
care not to touch the PCB mounted to the laser scanner
unit. (The PCB is equipped with a laser scanner
intensity adjustment variable resistor, and contact
with the PCB can change the adjustment setting.)
7.12.4.11 Removing
Hopper Assembly
iR2270 / iR2870 / iR3570 / iR4570 / iR3530
1) Remove the inside base cover [1] and the inside
right color [2].
the
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