Xerox Phaser 6280 Service Manual page 172

Error Messages and Codes
3-36
Troubleshooting Procedure Table (continued)
Step Actions and Questions
3 1. Perform the Duplex Jam Sensor test
(page 4-28): Service Mode
Engine Diag > Sensor Test
Duplex Jam Sensor.
2. Does the Duplex Jam Sensor
operate properly?
4 1. Perform the Duplex Clutch test
(page 4-57): Service Mode
Engine Diag > Motor Test
Clutch.
2. Does the clutch operate properly?
1. Perform the Duplex Motor test
5
(page 4-44): Service Mode
Engine Diag > Motor Test
Motor.
2. Does the motor operate properly?
1. Check the wiring harness
6
connectors P/J430 and P/J4301
between the Duplex Board and the
Duplex Jam Sensor.
2. Are the connectors securely
connected?
Check the Duplex Sensor Harness for
7
continuity.
1. Disconnect P/J4301 from the Regi
Sensor and P/J430 from the Duplex
Board.
2. Check continuity between P/J430
<=> P/J4301.
8 Check the Duplex Jam Sensor signal.
1. Disconnect P/J430 from the Duplex
Board.
2. Is there +3.3 V across ground <=>
J430-1 pin when the Interlock
Switch is activated?
1. Perform the Duplex Jam Sensor test
9
(page 4-28): Service Mode
Engine Diag > Sensor Test
Duplex Jam Sensor.
2. Does the sensor operate properly?
1. Check the wiring harness
10
connectors P/J428, P/J2720, P/
J272, and P/J27 between the Duplex
Board and the MCU Board.
2. Are the connectors securely
connected?
Yes
Go to step 4.
>
>
Go to step 6.
>
> Duplex
Replace the
> Duplex Unit
> Duplex (page 8-99).
Go to step 7.
Go to step 8.
Go to step 9.
Replace the
> Duplex Unit
> (page 8-99).
Go to step 11.
Phaser 6280 Color Laser Printer Service Manual
No
Go to step 6.
Go to step 19.
Go to step 18.
Reconnect the
connectors.
Replace the
Duplex Unit
(page 8-99).
Go to step 10.
Perform steps
10 through 14.
Reconnect the
connectors.