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Phaser 6280 Color Laser Printer Service Manual
3-37
Error Messages and Codes
11
Check the Duplex Unit Harness for
continuity.
1. Disconnect P/J428 from the Duplex
Board and P/J2720 from the Front
Cover Harness.
2. Check continuity between P/J428
<=> P/J2720.
Go to step 12.
Replace the
Duplex Unit
(page 8-99).
12
Check the Front Cover Harness for
continuity.
1. Disconnect P/J2720 from the Front
Cover Harness and P/J272 from the
Right Side Harness.
2. Check continuity between P/J2720
<=> P/J272.
Go to step 13.
Replace the
Front Cover
Harness.
13
Check the Right Side Harness for
continuity.
1. Disconnect P/J272 from the Front
Cover Harness and P/J27 from the
MCU Board.
2. Check continuity between P/J27 <=>
P/J272.
Go to step 14.
Replace the
Right Side
Harness.
14
Check the Duplex Board signal.
1. Disconnect P/J27 from the MCU
Board.
2. Is there +3.3 V across ground <=>
J27-15 pin on the MCU Board?
Replace the
Duplex Unit
(page 8-99).
Replace the
MCU Board
(page 8-86).
15
Check the Duplex Jam Sensor signal.
1. Disconnect P/J430 from the Duplex
Unit Board.
2. Does the voltage change when the
actuator of the Duplex Jam Sensor
is activated?
Perform steps
10 through 14.
Replace the
Duplex Unit
(page 8-99).
16
1. Check the wiring harness connector
P/J 431 between the Duplex Unit
Board and the Duplex Clutch.
2. Is P/J431 connector securely
connected?
Go to step 18.
Reconnect P/
J431 connector.
17
Check the Duplex Clutch for continuity.
1. Disconnect P/J431 from the Duplex
Clutch.
2. Is there +24 V across ground <=>
J431-1 pin on the Duplex Board?
Replace the
Duplex Unit
(page 8-99).
Perform steps
10 through 14.
18
1. Check the wiring harness connector
P/J 429 between the Duplex Unit
Board and the Duplex Motor.
2. Is P/J429 connector securely
connected?
Go to step 20.
Reconnect P/
J429 connector.
Troubleshooting Procedure Table (continued)
Step
Actions and Questions
Yes
No
Содержание Phaser 6280
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