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Confidential
9.18 Main PCB ASSY /
Wireless LAN PCB (Wireless LAN models only)
(1) Disconnect all harnesses and flat cables from the main PCB ASSY.
Release each harness and flat cable securing fixture from veil cover lower.
Fig. 3-75
Harness routing: Refer to “10. Left side of the machine”.
Note:
• After disconnecting flat cables, check that each cable is not damaged at its end or
shortcircuited.
• When connecting flat cables, do not insert them at an angle. After insertion, check
that the cable is not at an angle.
Relay front harness
Paper feed motor harness
HVPS flat cable
LT/TT connector harness
External temperature/humidity
sensor harness
Back cover/duplex
tray sensor harness
Toner amount detection sensor
PCB harness (light emission)
Internal temperature sensor harness
Paper empty sensor harness*
Laser unit flat cable
Low-voltage power supply harness
Erase lamp harness*
Eject sensor harness
* Models with 520-sheet T1 only
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