Error Messages and Codes
3-33
Fan Failure, Code 48
The machine logic detected a failure of the Fuser fan, LVPS fan, or rear fan.
Troubleshooting References
Applicable Parts
Wiring and Plug/Jack Map References
■
Fuser Fan
■
LVPS Fan
■
Rear Fan
Troubleshooting Procedure
Step
Actions and Questions
Yes
No
1
1.
Enter service diagnostics and run the
fan test.
2.
Does the fuser fan rotate at a high
speed?
Go to step 4.
Go to step 2.
2
1.
Check for voltage at J222-4.
2.
Does the voltage m24 VDC?
Go to step 3.
Check the wiring
to the fuser fan, if
the wiring is OK,
replace the
engine control
board.
3
Does the front panel indicate the fans are
ON?
Replace the fan.
Check the wiring
to the fuser fan, if
the wiring is OK,
replace the
engine control
board.
4
Does the rear fan revolve at high speed?
Go to step 7.
Go to step 5.
5
1.
Check for voltage at J552-1.
2.
Does the voltage m24 VDC?
Go to step 6.
Check the wiring
to the rear fan, if
the wiring is OK
replace the
interface board. If
the problem
continues,
replace the
engine control
board.
Содержание Phaser 7750DXF
Страница 1: ...Service Manual P h a s e r C o l o r L a s e r P r i n t e r 7750...
Страница 2: ......
Страница 14: ...xii Phaser 7750 Color Laser Printer...
Страница 22: ...xx Phaser 7750 Printer...
Страница 36: ...1 14 Phaser 7750 Printer Service Manual...
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Страница 160: ...4 32 Phaser 7750 Printer Service Manual...
Страница 188: ...5 28 Phaser 7750 Printer Service Manual...
Страница 210: ...6 22 Phaser 7750 Printer Service Manual...
Страница 211: ...7 Chapter Cleaning and Maintenance In this chapter Service Preventive Maintenance Procedure Recommended Tools Cleaning...
Страница 213: ...8 Chapter Service Parts Disassembly In this chapter Overview General Notes on Disassembly Disassembly Procedures...
Страница 278: ...9 4 Phaser 7750 Printer Service Manual Parts List 1 1 Drive Unit s4500 345...
Страница 296: ...9 22 Phaser 7750 Printer Service Manual Part List 5 1 Lift Unit s7750 366...
Страница 300: ...9 26 Phaser 7750 Printer Service Manual Part List 6 1 Developer Unit 1 of 2 s7750 372...
Страница 306: ...9 32 Phaser 7750 Printer Service Manual Part List 9 1 Electrical Components 1 of 3 s7750 377...
Страница 324: ...9 50 Phaser 7750 Printer Service Manual...
Страница 335: ...10 11 Map 2 MOB Sensor Assembly 7750 063 P J117 P J144 P J255 P J116...
Страница 337: ...10 13 Map 4 Duplex Transport P J136 P J538 J626 P J539 P J540 P J135 DUPLEX TRANSPORT ASSEMBLY 7750 065...
Страница 339: ...10 15 Map 6 Fuser P J212 P J211 P J264 WHT P600 BLK FUSER REAR P J260 BLU P J261 RED P J263 P J262 FS38 FS37 7750 067...
Страница 340: ...10 16 Phaser 7750 Printer Service Manual Map 7 Exit Transport 7750 068 P J104 P J220 P J611 P J222 P J172...
Страница 350: ...10 26 Phaser 7750 Printer Service Manual Map 21 Tray 3 Feeder HCF P J822 P J823 P J829 P J825 TRAY 3 FEEDER 7750 082...
Страница 410: ...Phaser 7750 Printer 10 85 Phaser 7750 Wiring Schematic 1 of 6...
Страница 411: ...10 86 Phaser 7750 Printer Phaser 7750 Wiring Schematic 2 of 6...
Страница 412: ...Phaser 7750 Printer 10 87 Phaser 7750 Wiring Schematic 3 of 6...
Страница 413: ...10 88 Phaser 7750 Printer Phaser 7750 Wiring Schematic 4 of 6...
Страница 414: ...Phaser 7750 Printer 10 89 Phaser 7750 Wiring Schematic 5 of 6...
Страница 415: ...10 90 Phaser 7750 Printer Phaser 7750 Wiring Schematic 6 of 6...
Страница 416: ......
Страница 421: ...11 5 Finisher Assemblies S7700 445 Gate Unit Horizontal Transport Staple Finisher Stacker Stand...
Страница 425: ...11 9 Finisher Sensor Interlock and Switch Locator Map...
Страница 458: ...11 42 Phaser 7750 Printer Service Manual Finisher Service Parts List PL 17 1 Finisher...
Страница 464: ...11 48 Phaser 7750 Printer Service Manual PL 17 5 Covers s7750 408...
Страница 466: ...11 50 Phaser 7750 Printer Service Manual PL 17 6 Top Cover and Eject Roll s7750 409...
Страница 468: ...11 52 Phaser 7750 Printer Service Manual PL 17 7 Paper Transport 1 of 2 s7750 410...
Страница 470: ...11 54 Phaser 7750 Printer Service Manual PL 17 8 Paper Transport 2 of 2 s7750 411...
Страница 472: ...11 56 Phaser 7750 Printer Service Manual PL 17 9 Staple Unit Assembly s7750 412...
Страница 474: ...11 58 Phaser 7750 Printer Service Manual PL 17 10 Compiler Tray Assembly s7750 413...
Страница 476: ...11 60 Phaser 7750 Printer Service Manual PL 17 11 Stacker Elevator Assembly s7750 414...
Страница 478: ...11 62 Phaser 7750 Printer Service Manual PL 17 12 Exit Assembly s7750 415...
Страница 480: ...11 64 Phaser 7750 Printer Service Manual PL 17 13 Electrical Components s7750 416...
Страница 482: ...11 66 Phaser 7750 Printer Service Manual PL 17 14 Finisher Rack Stand s7750 417...
Страница 484: ...11 68 Phaser 7750 Printer Service Manual...
Страница 505: ...071 0864 00 A...