![background image](http://html1.mh-extra.com/html/xerox/3450b-phaser-b-w-laser-printer/3450b-phaser-b-w-laser-printer_service-manual_3375634061.webp)
3-14
Phaser 3450 Laser Printer Service Manual
Fuser Failure/Low Heat/or Overheat/ 0x56/
0x57/0x58
The printer’s front panel displays “Fuser Failure, Engine Fuser Over Heat Error, or
Engine Fuser Low Heat Error”. The fuser has been removed, reseated, and locked into
place. Any obstructions, media, or debris has been removed from the fuser paper path.
Printer power has been cycled and the error still appears.
Troubleshooting Reference
Applicable Parts
Wiring and Plug/Jack Map References
Fuser heat lamp
"Print Engine Interconnect Diagram" on page 10-2
Fuser overheat thermostat
Thermistor
Main Board
Troubleshooting Procedure
Steps
Actions and Questions
Yes
No
1
Remove Fuser
Go to Step 2.
- -
2
Check resistance of overheat thermostat.
Is thermostat open?
Replace Fuser.
Go to Step 3.
3
Check resistance of thermistor. Is
thermistor open?
Replace Fuser.
Go to Step 4.
4
Check resistance of heat lamp. Is heat
lamp open?
Replace Fuser.
Replace Main
Board.
Summary of Contents for 3450B - Phaser B/W Laser Printer
Page 1: ...Service Manual P h a s e r L a s e r P r i n t e r 3450...
Page 2: ......
Page 13: ...xii Phaser 3450 Laser Printer...
Page 19: ...xviii Phaser 3450 Laser Printer...
Page 28: ...General Information 1 9 Consumables 1 Print Cartridge 1 s3450 164...
Page 47: ...2 14 Phaser 3450 Laser Printer Service Manual...
Page 92: ...6 Chapter Adjustments and Calibrations In this chapter Margin Calibration Resetting NVRAM...
Page 97: ...7 4 Phaser 3450 Laser Printer Service Manual...
Page 143: ...8 46 Phaser 3450 Laser Printer Service Manual...
Page 175: ...10 6 Phaser 3450 Laser Printer Service Manual...
Page 179: ......
Page 180: ...071 0866 00...