T-32
(5)
Image reading system: Black spots
<Sample of Image Quality Problem>
<Troubleshooting Procedures>
(6)
Image reading system: Blank streaks or bands
<Sample of Image Quality Problem>
<Troubleshooting Procedures>
Step
Check
Result
Action
1
Is the document damaged or dirty?
YES Replace the document.
3
Scratch on the PC Drum.
YES Replace the Drum Cartridge.
4
The problem has been eliminated after
performing step 3.
NO
Replace the CIS Assy.
Step
Check
Result
Action
1
Defective Print head unit.
YES Replace the Print head unit.
2
Defective the PC Drum.
YES Replace the Drum Cartridge.
3
Defective CIS.
YES Replace CIS.
4
Are there no bent connector pins on the
cables connecting the control boards,
are all connectors correctly plugged in,
and are no cables broken?
NO
Correctly plug in the connectors.
Replace connection cables.
4011T521AA
4011T015AA
4011T020AA
Содержание NEFAX 671
Страница 1: ...SERVICE MANUAL FIELD SERVICE NEC Unified Solutions Inc NEFAX 671 691...
Страница 271: ...T 9 2 5 Location of Misfeed Detection Sensors Exit Sensor PS1 Paper Take Up Switch S1...
Страница 314: ...PF 125 Service Manual...
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