3-76 Phaser 7500 Printer Service Manual
Error Messages and Codes
Fuser On Time Fail
The Main Lamp or Sub Lamp has been On continuously for longer than the setting
time (NVM).
Applicable Chain-Link Code
• 010-338: Fuser On Time Fail
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
1. Turn the power Off and On.
2. Check the following:
• The Fuser Assembly for improper installation.
• The Drawer Connector between the Fuser Assembly and the Main Unit
(DP/DJ600) for broken/ bent pins, debris, burns, and etc.
• The connection between the Fuser Assembly DJ600 and the MCU PWB
J431 for open circuit, short circuit, and poor contact broken/ bent pins,
debris, burns, and etc.
• The connection between the Fuser Assembly J600 and the Main LVPS J31
for open circuit, short circuit, and poor contact.
• The connection between the MCU PWB J414 and the Main LVPS J530 for
open circuit, short circuit, and poor contact.
3. If no problems are found, replace the following parts in sequence:
•Fuser Assembly (REP 7.1, page 8-67)
•Main LVPS (REP 18.7, page 8-194)
• MCU PWB (REP 18.12, page 8-202)
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
â– Fuser Assy, PL7.1.1
â– Main LVPS, PL18.1.11
â– MCU PWB, PL18.3.6