3-46 Phaser 6280 Color Laser Printer Service Manual
Error Messages and Codes
3 1. Check the wiring harness
connectors P/J29, P/J292, and P/
J2922 between the MCU Board and
the Registration Sensor.
2.Are the connectors securely
connected?
Go to step 4. Reconnect the
connectors.
4 Check the Regi Sensor Harness for
continuity.
1.Disconnect P/J292 from the Right
Side Harness and P/J2922 from the
Regi Sensor.
2.Check continuity between P/J292
<=> P/J2922.
Go to step 5. Replace the
Regi Sensor
Harness.
5 Check the Right Side Harness for
continuity.
1.Disconnect P/J29 from the MCU
Board and P/J292 from the Regi
Sensor Harness.
2.Check continuity between P/J29 <=>
P/J292.
Go to step 6. Replace the
Right Side
Harness.
6 Check the Registration Sensor for
continuity.
1.Disconnect P/J29 from the MCU
Board.
2.Is there +3.3 V across ground <=>
J29-8 pin?
Go to step 7. Replace the
MCU Board
(
page 8-86).
7 Check the Registration Sensor signal.
1.Measure the voltage across ground
<=> J29-10 pin on the MCU Board.
2.Does the voltage change when the
Actuator of the Registration Sensor
is activated?
Replace the
MCU Board
(
page 8-86).
Replace the
Regi Sensor
(
page 8-43).
8 1. Check the paper feed.
2.Does multiple feed occur?
Go to step 4. Replace the
MCU Board
(
page 8-86).
Go to step 4.
9 1. Replace the paper.
2.Does multiple feed still occur?
Replace the
damaged
part(s):
■ Retard Roller
Assembly
(page 8-26)
■ Tray 2 Feed
Roll (page 8-47)
■ Feeder
Assembly
(page 8-36).
Complete.
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No
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