Xerox Phaser 6180MFP - Cannot scan to computer; Cannot send or receive fax; Print job sent but the light of the Ready indicator is not blinking or on; Error indicator is on

Phaser 6180MFP Multifunction Printer Service Manual 3-25
Error Messages and Codes
4 1.Replace the paper.
2.Does the error still occur?
Replace the Tray
2 Retard Roller
(page 8-15).
Complete.
5 1.Replace the Feed Roller (page 8-14).
2.Does the error still occur?
Go to step 6. Complete.
6 1.Check the paper?
2.Does the error still occur?
Replace the
Feeder Unit
(page 8-47).
Complete.
7 1.Check the wiring harness
connectors P/J23, P/J232, and P/
J2322 between the MCU Board and
the Registration Sensor.
2.Are the connectors securely
connected?
Go to step 8. Reconnect the
connectors.
8 Check the Registration Sensor
Harness for continuity.
1.Disconnect P/J2322 from the
Registration Sensor.
2.Disconnect P/J232 from the Right
Side Harness.
3.Check continuity between P/J232
<=> P/J2322.
Go to step 9. Replace the
Registration
Sensor
Harness.
9 Check the Right Side Harness for
continuity.
1.Disconnect P/J23 from the MCU
Board.
2.Disconnect P/J232 from the
Registration Sensor Harness.
3.Check continuity between P/J23 <=>
P/J232.
Go to step 10. Replace the
Right Side
Harness.
10 Check the Registration Sensor signal.
1.Disconnect P/J23 from the MCU
Board.
2.Is there +3.3 V across ground <=>
J23-8 pin on the MCU Board?
Replace the
MCU Board
(page 8-88).
Replace the
Registration
Sensor
(page 8-44).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No