Error Messages and Codes
3-27
Laser Unit Failure
Error Codes
Laser Fails at warm-up; U2-1 Laser Fail / Power Off
Laser Fails Motor Speed; U2-2 Laser Fail/ Power Off
LD Power is high; U2-3 Laser Fail/ Power Off
LD Power is low; U2-4 Laser Fail/ Power Off
Troubleshooting Reference
Applicable Parts
Wiring and Plug/Jack Map References
■
Laser Unit Assembly
■
HVPS/Engine Logic Board
■
Print Cartridge
■
Laser Unit Assembly Harness
■
LVPS
■
“Laser Unit, 5 V Interlock, Interlock Switch
Assembly” on page 10-24
■
“Print Cartridge, Transfer Roller Assembly” on
page 10-21
■
“24 V Interlock, Rear Cover Switch, Main Motor, Sub
Fan, Exit Motor Assembly” on page 10-18
■
“Print Engine General Wiring Diagram” on
page 10-17
■
“Print Engine Plug/Jack Locator” on page 10-3
Troubleshooting Procedure
Steps
Actions and Questions
Yes
No
1
Enter Service Diagnostics and select
Engine NVRAM Adjustments.
Is the Laser Power setting at the factory
default value of 4?
Go to “Laser Unit
Assembly” on
page 4-13.
Go to Step 2.
2
Set Laser power to default value of 4, and
then check again.
Does the error still occur?
Go to “Laser Unit
Assembly” on
page 4-13.
Problem solved.
Summary of Contents for Phaser 4500
Page 1: ...laser printer Phaser 4500 Service Manual...
Page 2: ......
Page 13: ...xii Phaser 4500 Laser Printer...
Page 35: ...1 14 Phaser 4500 Service Manual...
Page 55: ...2 20 Phaser 4500 Service Manual 1 Print Cartridge 2 Transfer Roller s4500 10 1 2...
Page 153: ...3 74 Phaser 4500 Service Manual...
Page 223: ...4 70 Phaser 4500 Service Manual...
Page 230: ...Print Quality Troubleshooting 5 7 Fusing Test Print Phaser4500 030129 2 S 8 5x11 SEF s4500 258...
Page 273: ...5 50 Phaser 4500 Service Manual...
Page 276: ...Adjustments and Calibrations 6 3 s4500 256 Test Print Phaser4500 030129 2 S 8 5x11 SEF...
Page 296: ...FRU Disassembly 8 7 Right Cover PL1 1 4 1 Thumbscrew 2 Bottom Hooks s4500 058 1 2...
Page 373: ...8 84 Phaser 4500 Service Manual Main Fan PL12 1 10 1 Main Fan 2 Label 1 s4500 147 2...
Page 423: ...8 134 Phaser 4500 Service Manual Stacker Cover PL23 1 1 1 Stacker Cover s4500 201 1...
Page 522: ...A Appendix Appendix Contents Menu Map Service Diagnostics Menu Map...
Page 527: ...A 6 Phaser 4500 Service Manual...
Page 536: ......
Page 537: ...071 0867 00 A...