Transfer Roller Clutch Service Check; Transfer Belt Cleaning Roller Clutch Service Check - Lexmark X500n Service Manual

7100-XXX

Transfer roller clutch service check

Step
1 Turn printer off and remove printer right
cover. See "Right cover removal" on
page 4-13. Is cable properly connected to
transfer roller clutch?
2 Disconnect transfer roller clutch from cable.
Measure resistance between two outer pins
on transfer roller clutch. Does resistance
measure between 119 and 145 ohms?
3 Remove engine controller board shield. See
"Engine controller board removal" on
page 4-34 for steps to remove engine
controller board shield. Disconnect cable
from MCN4 on engine controller board.
Check cable continuity from MCN4 pins 5
and 6 (cable) to connector that attaches to
transfer roller clutch. Ensure that pins are
not shorted. Is cable okay?

Transfer belt cleaning roller clutch service check

Step
1 Turn printer off, and remove printer right
cover. See "Right cover removal" on
page 4-13. Is cable properly connected to
cleaning roller clutch?
2 Disconnect transfer belt cleaning roller
clutch from cable. Measure resistance
between two outer pins on cleaning roller
clutch. Does resistance measure between
198 and 242 ohms?
3 Remove engine controller board shield. See
"Engine controller board removal" on
page 4-34 for steps to remove shield.
Disconnect cable from MCN4 on engine
controller board. Check cable continuity
from MCN4 pins 1 and 2 (cable) to
connector that attaches to cleaning roller
clutch. Ensure that pins are not shorted. Is
cable okay?
2-18
Service Manual
Questions / actions
Questions / actions
Yes
Go to step 2.
Go to step 3.
Replace engine controller
board. See "Engine
controller board removal"
on page 4-34. If problem
persists, replace faulty
transfer roller clutch. See
"Clutch removal" on
page 4-27.
Yes
Go to step 2.
Go to step 3.
Replace engine controller
board. See "Engine
controller board removal"
on page 4-34. If problem
persists, replace faulty
cleaning roller clutch. See
"Cleaning roller clutch
removal" on page 4-25.
No
Properly connect cable. If
problem persists, go to step
2.
Replace faulty transfer
roller clutch. See "Clutch
removal" on page 4-27.
Replace cable. If problem
persists, replace faulty
transfer roller clutch. See
"Clutch removal" on
page 4-27.
No
Properly connect cable. If
problem persists, go to step
2.
Replace faulty cleaning
roller clutch. See
"Cleaning roller clutch
removal" on page 4-25.
Replace cable. If problem
persists, replace faulty
cleaning roller clutch. See
"Cleaning roller clutch
removal" on page 4-25.