Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-43
Service Parts Disassembly
Process Drive (PL4.0.14)
Caution
Replacement drives come with two pins to hold the gears in position. Use
either the pins that come with replacement drives, or a paper clip, bent
into a U shape to hold the gears in their proper position during removal
and replacement. If the Process Drive is incorrectly installed, the printer
could be damaged. See “Homing the Process Drive Train” on page 6-8
.
Torque the Process Drive screws to 12 in. lbs. Irreversible damage can
result if these screws are over tightened.
1. Remove the Right Side Cover (page 8-5).
2. Disconnect the drum heater harness from the Drum Heater Relay Board
and free other wiring harnesses from the gearbox cable restraint.
3. Pin the gears in position to maintain correct alignment on replacement.
4. Remove 3 screws and remove the Process Drive.
5. Disconnect the harness from the Process Drive motor.
Process Drive Motor
and Gearbox
Hole in gear
aligns with
arrow on
frame
Holes in process
drive frame aligns
with holes in
gears
Hole in gear
aligns with
arrow on frame
s8500-107
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