Muratec MFX-2550 Field Engineering Manual page 266

No. Symptom
19 An unusual 1. Does the sound occur during scan-
sound occurs.
2. Does the sound occur during scan-
3. Are there any objects interfering with
4. Has the ADF motor sounded abnor-
5. Are there any objects interfering with
6. Has the FBS motor sounded abnor-
7. Are there any objects interfering with
8. Are there any objects interfering with
9. Are there any objects interfering with
10. Does the sound occur while record-
11. If you remove the drum or toner car-
12. Are there any objects interfering with
13. If you replace the toner or drum car-
14. If you replace the transfer roller or
15. Are there any objects interfering with
16. If you replace the main control
1. Have the main control board and the
20 The document
memory can not
be backed up.
2. Is the battery voltage above +3V
3. Did you charge the battery for more
4. If you replace the battery, the symp-
5. If you replace the main control board,
What to confirm
ning?
ning using the ADF or document glass
?
the roller or roller shaft?
mal?
the ADF gear?
mal?
the FBS gear?
the FBS pulley?
the mirror carriage traveling surface?
ing?
tridge, the sound still occurs.
the drum gear, developing gear, or
transfer gear?
tridge, the symptom will be fixed.
fuser, the symptom will be fixed.
the driving mechanism?
board, the symptom will be fixed.
battery been connected to P81?
when the machine in shut down?
than 24 hours?
tom will be fixed.
the symptom will be fixed.
Yes Check No. 2.
No Check No. 10.
Yes Check No. 3.
No Check No. 6.
Remove the objects.
Yes
No Check No. 4.
Yes Clean the roller. Check the harness.
No Check No. 5.
Remove the objects.
Yes
No Check No. 6.
Yes Check the harness.
No Check No. 7.
Remove the objects.
Yes
No Check No. 8.
Remove the objects.
Yes
No Check No. 9.
Remove the objects using lint free
Yes
waste.
No
Check No. 10.
Yes Check No. 11.
No Check No. 17.
Yes Check No. 12.
No Replace the toner or drum cartridge.
Remove the objects.
Yes
No Check No. 13.
Yes Replace the toner or drum cartridge.
No Check No. 14.
Yes Replace the transfer roller or fuser.
No Check No. 15.
Remove the objects.
Yes
No Check No. 16.
Yes Replace the main control board.
No Replace the machine.
Yes Check No. 2.
No Connect it.
Yes Check No. 5.
No Check No. 3.
Yes Check No. 4.
No Charge the battery.
Yes Replace the battery.
No Check No. 5.
Yes Replace the main control board.
No Replace the machine.
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Countermeasure