3-74 Phaser 7500 Printer Service Manual
Error Messages and Codes
Heat Roll NC Sensor Range Fail
When the compensation output AD value of the Center Control Temperature
Sensor was detected to be less than 130 10 or more times in a row.
When the detection output AD value of the Center Control Temperature Sensor
was detected to be less than 150 10 or more times in a row.
Applicable Chain-Link Code
• 010-335: Heat Roll NC Sensor Range 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 Fuser Assembly for improper installation.
3. Check 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
■ Fuser Assy, PL7.1.1
■ MCU PWB, PL18.3.6
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