Xerox Phaser 7400

3-134 Phaser 7400 Color Printer Service Manual
Finisher Punch Registration Sensor Failure
An error was detected in the Horizontal Registration Home Position Sensor.
Applicable Status Code:
Code 136: Punch Registration Sensor Failure
Initial Actions:
■ Cycle the printer's power.
■ If the problem persists follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Horizontal Registration Home Position Sensor
■ Punch Control Board
■ Finisher Control Board
■ Options Map 2 Punch Controller Board
■ Options Punch Controller Sensors and Motors
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Test the Punch Registration Sensor.
Run the Service Diagnostics Punch
Registration Sensor test.
Does the sensor function correctly?
Go to Step 6. Go to Step 2.
2
Check the sensor harness connection.
Is P/J1006 connected to the Punch Control
Board?
Replace the
sensor. If the error
persists, go to
Step 3.
Connect the
harness.
3
Check the harness continuity.
Disconnect P/J1006 and P/J2007.
Is the harness conductive?
Go to Step 5. Replace the
harness.
4
Check for +5 V to the sensor.
Disconnect P/J1006.
Is there +5 V at J1006-3 <=> ground?
Go to Step 5. Replace the
Punch Control
Board.
5
Replace the Finisher Control Board.
Does the error still occur?
Replace the
Engine Control
Board
(
page 8-112).
Complete.