Xerox Phaser 6280 Service Manual page 212

Error Messages and Codes
3-76
Troubleshooting Procedure Table (continued)
Step Actions and Questions
4 1. Perform the Registration Sensor
test (page 4-30):
Engine Diag > Sensor Test
Sensor.
2. Does the number on the Control
Panel increase by 1 when the
Actuator of the Registration Sensor
is activated?
1. Check the wiring harness
5
connectors P/J29, P/J292, and P/
J2922 between the MCU Board and
the Registration Sensor.
2. Are the connectors securely
connected?
6 Check the Registration 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.
7 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.
Check the Registration Sensor for
8
continuity.
1. Disconnect P/J29 from the MCU
Board.
2. Is there +3.3 V across ground <=>
J29-8 pin?
Check the Registration Sensor signal.
9
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?
10 1. Check the Rollers for rotation.
2. Does the Rollers rotate smoothly?
Yes
Go to step 10.
Service Mode >
> Regi
Go to step 6.
Go to step 7.
Go to step 8.
Go to step 9.
Replace the
MCU Board
(page 8-86).
Replace the
MCU Board
(page 8-86).
Phaser 6280 Color Laser Printer Service Manual
No
Go to step 5.
Reconnect the
connectors.
Replace the
Registration
Sensor
Harness.
Replace the
Right Side
Harness.
Replace the
MCU Board
(page 8-86).
Replace the
Registration
Sensor
(page 8-43).
Replace the
defective
Rollers.
Tray 1 (MPT)
Feed Roll
(page 8-34)