FrameMaker Ver.5.5(PC) Di251/Di351 TROUBLESHOOTING
05.03.01
T-38
C0500,C0510
C0520
Step
Check
Result
Action
1
Fusing Roller Heater Lamp turns ON when the
Side Cover is opened and closed.
NO
Check step 3 and onward.
2
The resistance of Fusing Roller Thermistor
(across CN25-2 and 3 on the Fusing Unit end)
is infinity.
YES
Change Fusing Roller
Thermistor.
NO
Change Master Board.
3
There is continuity across CN3-1 and 2 on the
Fusing Unit end.
YES
Check step 7.
4
Fusing Roller Heater Lamp is conducting.
NO
Change Fusing Roller
Heater Lamp.
5
Fusing Roller Thermostat is conducting.
NO
Change Fusing Roller
Thermostat.
6
Fusing Roller Heater Lamp Fuse is conducting.
NO
Change Fusing Roller
Heater Lamp Fuse.
7
There is continuity across 1A and 1B, and
across 2A and 2B, when Side Cover Interlock
Switch 2 is actuated.
YES
Change Power Supply
Unit.
Change Master Board.
NO
Change Side Cover Inter-
lock Switch 2.
Step
Check
Result
Action
1
Fusing Roller Thermistor is dirty.
YES
Clean.
2
The circuit across CN25-2 and -3 on the Fus-
ing Unit end is shorted.
YES
Change Fusing Roller
Thermistor.
NO
Change Master Board.
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 ...