904-Black Developer Clutch Service Check - Lexmark C510 Service Manual

904—Black developer clutch service check
Step Questions / actions
1 Turn printer off and remove
right cover. See
cover removal" on
page 4-22. Is developer
clutch cable properly
connected?
2 Is developer clutch cable
damaged?
3 Disconnect clutch cable.
On clutch side, measure
resistance between two
outer pins. Is resistance
between 139 and 171
ohms?
4 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 23 and 24 to
connector that attaches to
black developer clutch
cable. Ensure that pins are
not shorted. Is cable okay?
Go to step 2.
"Right
Replace
developer drive
assembly. See
"Developer
drive assembly
removal" on
page
Go to step 4.
Replace I/O
board.
for steps to board removal"
on page
Go to step 5.
Yes
Properly connect
cable. Go to step
5.
Go to step 3.
4-32.
Replace
developer drive
assembly. See
"Developer
drive assembly
removal" on
page
Replace cable.
See"I/O Go to step 5.
4-70.
Diagnostic information
5021-0XX
No
4-32.
2-35