2-60 Service Manual
5021-0XX
920—Fuser thermistor service check
Step Questions / actions Yes No
1 Remove and reinstall fuser
assembly. See “Fuser
assembly removal” on
page 4-9. Does error
clear?
Problem solved. Go to step 2.
2 Check fuser connector for
damage. Replace if
necessary. Does error
clear?
Problem solved. Go to step 3.
3 Turn printer off and check
cable that connects engine
controller board connector
FUCN to fuser for proper
connection, continuity and
pin shorts. Is cable okay?
Go to step 4. Properly connect
cable or replace
if damaged. If
error clears,
problem solved,
otherwise go to
step 4.
4 Replace fuser assembly.
See “Fuser assembly
removal” on page 4-9.
Does error clear?
Note: Fuser is a customer
order supply.
Problem solved. Replace engine
controller board.
See “Engine
controller
board removal”
on page 4-55.
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