Symptom
Action
Jam
5.
6.
7.
Abnormal noise
1.
2.
3.
Check that the FCU CN11 - rx motor connection is not loose.
Does the rx motor work?
Y
N
Does the FCU output phase drive signals on CN11, pins 1 - 4?
Y
N
Replace the FCU.
Replace the rx motor.
There may be a cutter problem. Do a paper cycle. Does the cutter work proper-
ly? If not, check the following.
Check that the connector from FCU CN6 to the cutter is not loose.
Does the FCU output a cutter motor drive signal on CN6-1?
Y
N
Replace the FCU.
Replace the cutter motor and/or connector.
Check that the cutter sensor (SB-7) actuation mechanism works properly.
Does the FCU receive signals at CN6-3 during a paper cycle?
Y N
Replace SB-7 and/or the connector.
Replace the FCU.
Replace the FCU.
Is the cover closed properly?
Check that the printer mechanisms are assembled correctly.
Replace the rx motor or the FCU.
5-13
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