FrameMaker Ver.5.5(PC) Di251/Di351 TROUBLESHOOTING
05.03.01
T-51
(4)
Foggy Background
Section
Step
Check
Result
Action
—
1
Sunlight or any other extraneous light
enters the copier.
YES
Protect the copier from
extraneous light.
Engine
1
PC Drum is dirty.
YES
Clean.
2
Comb Electrode contact terminal is
dirty or deformed.
YES
Clean or change.
3
Grid voltage contact terminal is dirty or
deformed.
YES
Clean or change.
4
Charge Neutralizing Sheet contact ter-
minal is dirty or deformed.
YES
Clean or change.
5
Erase Lamp is dirty.
YES
Clean.
6
Erase Lamp is conducting.
NO
Change Erase Lamp.
7
Select functions in the following order:
Tech. Rep. Mode
→
Tech. Rep. Choice
→
Printer. The image problem is cor-
rected when the “Image Density” value
is changed toward the minus side.
YES
Make setting again.
8
Select functions in the following order:
Tech. Rep. Mode
→
Tech. Rep. Choice
→
Printer. The image problem is cor-
rected when the “VG Adjust” value is
changed toward the minus side.
YES
Make setting again.
NO
Change I/C.
Change PH Assy.
Change High Voltage
Unit.
Change Master Board.
IR
1
Mirror, lens, and/or Original Glass are
dirty.
YES
Clean.
2
Exposure Lamp is dirty or deteriorated.
YES
Clean or change.
3
CCD2 Board and MFB2 Board are
connected properly.
NO
Correct.
4
MFB2 Board and Master Board are
connected properly.
YES
Change CCD Unit.
Change MFB2 Board.
NO
Correct.
<Typical Faulty Images>
4011T519AA
4011T538AA
When engine is faulty.
When IR is faulty.
Summary of Contents for Di251
Page 1: ...Di251 Di351 SERVICE MANUAL GENERAL 4011 7990 11 ...
Page 2: ...INDEX GENERAL GENERAL MECHANICAL ELECTRICAL ...
Page 3: ...GENERAL ...
Page 18: ...MECHANICAL ELECTRICAL ...
Page 24: ...M 4 3 DRIVE SYSTEM 1 Scanner Motor M10 2 Main Motor M2 3 I C Motor M1 1 3 2 4011M002AA ...
Page 71: ...Di251 Di351 SERVICE MANUAL FIELD SERVICE 4011 7991 11 ...
Page 83: ...Di251 Di351 Allgemein Mechanik Elektrik Rev 1 1 0 03 01 I 1 INSTALLATION 3 ...
Page 88: ...Di251 DI351 Rev 1 1 0 03 01 I 6 ...
Page 93: ...I 5 Di251 Di351 Rev 11 0 0 03 01 10 Grounding plate screws 3 1 2 3 4 5 6 7 8 9 10 ...
Page 99: ...I 11 Di251 Di351 Rev 11 0 0 03 01 6 Fit the Exit Tray 7 Close the Finisher Cover ...
Page 178: ...I 90 Di251 Di351 Rev 1 1 0 0 03 01 ...
Page 179: ...DIS REASSEMBLY ADJUSTMENT 10230 ...
Page 241: ...SWITCHES ON PWBs TECH REP SETTINGS 17196 ...
Page 296: ...TROUBLESHOOTING 14413 ...