2-54 Service Manual
7541-03x
146.05 Tray 5 error
Note: This is the third expansion tray.
171.01 Fuser fan error
Step Action and questions Yes No
1 Check CN 121 on the second expansion paper
feeder’s expansion feeder controller board for proper
connectivity. Is it properly connected?
Go to step 3. Go to step 2.
2
Reconnect the cable to CN 121.Did this fix the
problem?
Problem
resolved.
Go to step 3.
3
Check CN 120 on the third expansion paper feeder’s
expansion feeder controller board for proper
connectivity. Is it properly connected?
Go to step 5. Go to step 4.
4
Reconnect the cable to CN 120.Did this fix the
problem?
Problem
resolved.
Go to step 5.
5
Check CN 103 on the third expansion paper feeder’s
expansion feeder controller board for proper
connectivity. Is it properly connected?
Go to step 7. Go to step 6.
6
Reconnect the cable to CN 103.Did this fix the
problem?
Problem
resolved.
Go to step 7.
7
Replace the paper full sensor. Does this fix the
problem?
Problem
resolved.
Go to step 8.
8
Replace the expansion paper feeder controller board.
Does this fix the problem?
Problem
resolved.
Contact you
second level
support.
Step Questions/actions Yes No
1 Is there anything obstructing the fan’s movement? Clear the
obstruction.
Go to step 2.
2
Check connector CN21 on the MDCONT board. Is it
properly connected?
Go to step 3 Reconnect the
connectors.
3
Replace the fuser fan. Does this remedy the situation? Problem solved. Go to step 4.
4
Replace the engine controller board. Does this remedy
the situation
Problem solved. Contact your
second level
support.