Symptom: Polygonal Mirror Motor Failure (Error Code 9-23) *
This error occurs in either of the following conditions:
•
If MFDU CN14-4 does not go low within 10 s of the polygonal mirror motor being
switched on (sub-code 31)
•
If MFDU CN14-4 goes back to high for 3 s or more during polygonal mirror motor opera-
tion (sub-code 32)
Check
Action if Yes
Action if No
1. Check the connection between the MFDU (CN14) and the polygonal mirror motor.
2. Check that +24VM from
the MFDU (CN14-1) is
supplied to the polygonal
mirror motor.
Replace the polygonal
mirror motor.
Replace the MFDU.
If the problem still remains,
replace the MFCE.
Symptom: Main Motor Failure (Error Code 9-24)
This error occurs in either of the following conditions:
•
If MFDU CN15-4 does not go low within 10 s of the main motor being switched on (sub-
code 41)
•
If MFDU CN15-4 goes back to high for 3 s or more during main motor operation (sub-
code 42)
Check
Action if Yes
Action if No
1. Check that the main motor drive mechanism is not obstructed.
2. Check that all the main motor drive gears are correctly installed.
3. Replace the main motor.
Does the problem still re-
main?
Replace the MFDU.
If the problem still occurs,
replace the MFCE.
T
roubl
e-
shoot
ing
December 21st, 1995
TROUBLESHOOTING
SERVICE CALL CONDITIONS *
6-29