Service Manual

Diagnostic information 2-105
4062
927.01 Main cooling fan
failure.
The cooling fan is obstructed or
has failed.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the main cooling
fan. Go to “Output cover
assembly removal (T650,
T652, T654)” on
page 4-54.
927.02 Print cartridge cooling
fan failure.
The cooling fan is obstructed or
has failed.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the print cartridge
cooling fan. Go to “Print
cartridge cooling fan
removal (T650, T652,
T654)” on page 4-57.
927.03 Main cooling fan
control failure.
The main cooling fan does not
reach the specified speed.
4. Check for cooling fan
obstructions.
5. Check the connections on
the main cooling fan.
6. Replace the main cooling
fan. Go to “Output cover
assembly removal (T650,
T652, T654)” on
page 4-54.
927.04 Main cooling fan
under speed failure
The main cooling fan does not
reach the specified speed.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the main cooling
fan. Go to “Output cover
assembly removal (T650,
T652, T654)” on
page 4-54.
927.05 Main cooling fan over
speed failure.
The main cooling fan does not
reach the specified speed.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the main cooling
fan. Go to “Output cover
assembly removal (T650,
T652, T654)” on
page 4-54.
927.06 Main cooling fan over
speed failure.
The main cooling fan does not
reach the specified speed.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the main cooling
fan. Go to “Output cover
assembly removal (T650,
T652, T654)” on
page 4-54.
Error
code or
message
Error contents Description/Action Possible repair actions