Service Manual

Diagnostic information 2-87
4062
916.01 Internal duplex drive
motor over speed
failure
The duplex drive motor does
not rotate at the specified
speed.
1. Check all the connections on
the duplex drive motor
assembly.
2. Check all the connections on
the system card assembly.
3. Replace the duplex drive
motor assembly if problem
remains.
Go to “Duplex drive motor
assembly removal (T652,
T654)” on page 4-19.
920.00 Fuser under
temperature
Fuser type = 1
Fuser does not maintain proper
operating temperature within
steady state control.
1. Turn the machine off/on
and ensure the fuser unit
assembly is properly
installed.
2. Ensure the proper voltage
fuser is installed in the
machine.
3. Replace the fuser unit
assembly if problem
remains. Go to “Fuser unit
assembly removal (T650,
T652, T654)” on
page 4-23.
920.01 Fuser warm-up failure
Fuser type = 1
The fuser hot roll took too long
to heat up after transitioning to
new enhanced mode within
standby control only.
1. Turn the machine off/on
and ensure the fuser unit
assembly is properly
installed.
2. Ensure the proper voltage
fuser is installed in the
machine.
3. Replace the fuser unit
assembly if problem
remains. Go to “Fuser unit
assembly removal (T650,
T652, T654)” on
page 4-23.
920.02 Fuser warm-up failure
Fuser type = 1
The fuser hot roll fell to far
below desired temperature
while in standby control.
1. Turn the machine off/on
and ensure the fuser unit
assembly is properly
installed.
2. Ensure the proper voltage
fuser is installed in the
machine.
3. Replace the fuser unit
assembly if problem
remains. Go to “Fuser unit
assembly removal (T650,
T652, T654)” on
page 4-23.
Error
code or
message
Error contents Description/Action Possible repair actions