Fuser Sts (Rear) Warm Time Failure, Code 46; Fuser Ssr2 On Time Failure, Code 47 - Xerox 7750DXF - Phaser Color Laser Printer Service Manual

Fuser STS (Rear) Warm Time Failure, Code 46

Sub-heater warm-up error. The temperature did not reach "Ready" temperature within
the specified time.

Fuser SSR2 On Time Failure, Code 47

The Sub-heater remained ON for more than the specified time.
Troubleshooting References
Applicable Parts
Fuser
Engine Control Board
Troubleshooting Procedure
Step Actions and Questions
1 1. Turn OFF power, remove the fuser
assembly and allow it to cool down.
2. Measure the resistance between the
Fuser connector P600-7 and P600-9.
3. Does the resistance measure between
30 K and 190 K Ohms?
2 1. Measure the resistance between fuser
connector P600-3 and P600-12.
2. Does the resistance measure 20 Ohms
or less?
3 1. Reinstall the fuser assembly.
2. Enter service diagnostics.
3. From the Sensor Tests run the Fuser
Temperature test.
4. Is the temperature indicated
approximately 165
4 1. Turn printer power OFF.
2. Check for an open circuit or poor
connection between J641-4 and
J641-5.
3. Is the wiring harness OK?
Error Messages and Codes
Wiring and Plug/Jack Map References
o
C?
Yes
Go to step 2.
Go to step 3.
Go to step 5.
Replace the
engine control
board.
No
Replace the fuser
assembly.
Replace the fuser
assembly.
Go to step 4.
Repair or replace
the wiring
harness.
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