993-Fuser Clutch Service Check - Lexmark C510 Service Manual

993—Fuser clutch service check
Step Questions / actions
1 Turn printer off and remove
printer right cover. See
"Right cover removal" on
page 4-22. Disconnect
fuser clutch from cable.
Measure resistance
between two outer pins on
fuser clutch. Does
resistance measure
between 133 and 163
ohms?
2 Remove I/O board shield.
See "I/O board removal"
on page 4-70
remove I/O board shield.
Disconnect cable from
DCN10 on I/O board.
Check cable continuity from
DCN10 pins 5 and 6
(cable) to connector that
attaches to cleaning roller
clutch. Ensure that pins are
not shorted. Is cable okay?
3 Remove engine controller
board shield. See
controller board removal"
on page 4-55
remove shield. Check cable
that connects I2CN on
engine controller board to
DCN3 on I/O board for
proper connection,
damage, pin shorting, and
continuity. Is cable okay?
Go to step 2.
Replace I/O
board. See
for steps to board removal"
on page
problem
persists, go to
step 3.
Replace engine
"Engine controller board.
See
for steps to controller
board removal"
on page
Yes
Replace faulty
fuser clutch. See
"Clutch
removal" on
page
Replace cable.
"I/O
4-70. If
Replace cable.
"Engine
4-55.
Diagnostic information
5021-0XX
No
4-40.
2-69