Xerox Phaser 6280, Service Manual, Page: 148 / 672

3-12 Phaser 6280 Color Laser Printer Service Manual
Error Messages and Codes
5 1. Perform the Registration Sensor
test (page 4-30): Service Mode >
Engine Diag > Sensor Test > Regi
Sensor .
2. Does the number on the Control
Panel increase by 1 when the
Actuator of the Registration Sensor
is activated?
Go to step 11. Go to step 6.
6 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 7. Reconnect the
connectors.
7 Check the Registration Sensor
Harness for continuity.
1. Disconnect P/J292 and P/J2922.
2. Check continuity between P/J292
<=> P/J2922.
Go to step 8. Replace the
Registration
Sensor
Harness.
8 Check the Right Side Harness for
continuity.
1. Disconnect P/J29 and P/J292.
2. Check continuity between P/J29 <=>
P/J292.
Go to step 9. Replace the
Right Side
Harness.
9 Check the Registration Sensor signal.
1. Disconnect P/J29 on the MCU
Board.
2. Is there +3.3 V across ground <=>
J29-8 pin?
Go to step 10. Replace the
MCU Board
(page 8-86).
10 Check the Registration Sensor for
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
Registration
Sensor
(page 8-43).
11 1. Perform the Tray 2 Motor test
(page 4-43): Service Mode >
Engine Diag > Motor Test > Tray 2
Motor .
2. Does the Motor operate?
Go to step 15. Go to step 12.
12 1. Check the wiring harness
connectors P/J25 and P/J251
between the MCU Board and the PH
Drive Assembly.
2. Are the connectors securely
connected?
Go to step 13. Connect the
connectors.
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No