Phaser 7500 Printer Service Manual 3-65
Error Messages and Codes
Heat Roll In NC Sensor Differential Amp Fail
The temperature monitor AD value of the Center Control Temperature Sensor was
detected to be abnormal 10 times in a row.
To clear this Fail, clear the history in NVM and then turn the power Off and On
(Clear Tech Rep Faults).
Applicable Chain-Link Code
• 010-319: Heat Roll NC Sensor Differential Amp Fail
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
To clear this Fail, clear the history in NVM and then turn the power Off and On.
1. Clear the history at the NVM then turn the power Off and On.
2. Check the Fuser Assembly for improper installation.
3. Check the The Drawer Connector between the Fuser Assembly and the Main
Unit (DP/DJ600) for broken/ bent pins, debris, burns, and etc.
4. Check the connection between the Fuser Assembly DJ600 and the MCU PWB
J431 for open circuit, short circuit, and poor contact.
5. If no problems are found, replace the following parts in sequence:
•Fuser Assembly (REP 7.1, page 8-67)
• 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– MCU PWB, PL18.3.6
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