Phaser 7500 Printer Service Manual 3-73
Error Messages and Codes
Heat Roll NC Sensor Broken Fail
When the value of (Center Control Temp. Sensor temperature - Rear Control
Thermistor temperature) is higher than 90 (NVM)°C 10 or more times in a row.
When the value of (Rear Control Thermistor temperature - Center Control
Temperature Sensor temperature) is higher than 70 (NVM)°C 10 or more times in a
row.
Applicable Chain-Link Code
• 010-334: Heat Roll NC Sensor Broken 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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