Lexmark C510 Service Manual page 124

5021-0XX
Step Questions / actions
5 If waste toner bottle is
removed, reinsert it.
Ensure rear cover
assembly is shut. Override
top and front cover
interlock switches. For
location, see
switch locations" on
page 5-8. Reconnect
operator panel. Turn printer
on. Allow printer to run until
error posts. Disconnect
connector from developer
motor and check the
following on disconnected
cable connector:
Pin 4 to pin 5—24VDC
Pin 6 to pin 5—24VDC
Pin 10 to pin 5—5VDC
Are voltages present?
6 Remove I/O board shield.
See "I/O board removal"
on page 4-70
remove I/O board shield.
Disconnect DCN11 from
I/O board. Check for
continuity and shorted pins
on cable that connects
DCN11 to developer motor.
Is cable okay?
2-46
Service Manual
"Interlock
for steps to
Yes
Replace
developer motor.
See "Developer
motor removal"
on page 4-31.
Go to step 8
Go to step 7.
No
Go to step 6.
Replace cable.
Retest printer. If
error clears,
problem solved,
otherwise go to
step 7.