Xerox Phaser 6280 Service Manual page 223

Phaser 6280 Color Laser Printer Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
5 1. Check the No Paper Actuator.
2. Does the Actuator operate
smoothly?
1. Perform the Tray 2 No Paper test
6
(page 4-38): Service Mode
Engine Diag >
No Paper.
2. Does the number on the Control
Panel increase by 1 every time the
Actuator is activated?
1. Check the wiring harness
7
connectors P/J29, P/J292, and P/
J2921 between the No Paper Sensor
and the MCU Board.
2. Are the connectors securely
connected?
Check the Right Side Harness for
8
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.
9 Check the Registration Sensor
Harness for continuity.
1. Disconnect P/J292 from the Right
Side Harness and P/J2921 from the
No Paper Sensor.
2. Check continuity between P/J292
<=> P/J2921.
10 Check the No Paper Sensor signal.
1. Disconnect P/J29 from the MCU
Board.
2. Is there +3.3 V across ground <=>
J29-5 pin?
11 Check the No Paper Sensor for
operation.
1. Measure the voltage across ground
<=> J29-7 pin.
2. Does the voltage change when the
No Paper Actuator of the No Paper
Sensor is activated?
Yes
Go to step 6.
Replace the
> MCU Board
Sensor Test > Tray 2 (page 8-86).
Go to step 8.
Go to step 9.
Go to step 10.
Go to step 11.
Replace the
MCU Board
(page 8-86).
Error Messages and Codes
No
Replace the
Feeder
Assembly
(page 8-36).
Go to step 7.
Reconnect the
connectors.
Go to step 8.
Replace the
Right Side
Harness.
Replace the
Registration
Sensor
Harness.
Replace the
MCU Board
(page 8-86).
Replace the No
Paper Sensor
(page 8-45).
3-87