Xerox Phaser 6280 Service Manual page 177

Phaser 6280 Color Laser Printer Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
7 Check the Fuser signal.
1. Disconnect P/J17 from the MCU
Board.
2. Is there +3.3 V across ground <=>
J17-1 pin?
Check the Exit Sensor for signal.
8
1. Measure the voltage across ground
<=> P/J17-3 pin.
2. Does the voltage change when the
Actuator of the Exit Sensor is
activated?
1. Perform the Registration Sensor
9
test (page 4-30):
Engine Diag >
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
10
connectors P/J29, P/J292, and P/
J2922 between the MCU Board and
the Registration Sensor.
2. Are the connectors securely
connected?
Check the Registration Sensor
11
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.
12 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
13
continuity.
1. Disconnect P/J29 from the MCU
Board.
2. Is there +3.3 V across ground <=>
J29-8 pin?
Yes
Go to step 8.
Replace the
MCU Board
(page 8-86).
Go to step 15.
Service Mode >
Sensor Test > Regi
Go to step 11.
Go to step 12.
Go to step 13.
Go to step 14.
Error Messages and Codes
No
Replace the
MCU Board
(page 8-86).
Replace the
Fuser
(page 8-11).
Go to step 10.
Reconnect the
connectors.
Replace the
Registration
Sensor
Harness.
Replace the
Right Side
Harness.
Replace the
MCU Board
(page 8-86).
3-41