Xerox Phaser 6121MFP Service Manual page 172

Error Messages and Codes
Jam at Duplex Unit Open Top Cover and Duplex Unit Cover
3-66
Troubleshooting Procedure Table
Step Action and Questions
1 Perform a Tray 1 Paper Feed test
(page 6-31).
Does Tray 1 feed paper normally?
2 Clean the 500-Sheet Feeder Paper Pick-
up Roller (page 7-10).
Does the problem persist?
3 Check the Engine Control Board
connector P/J21.
Is the connector seated properly?
4 On the Engine Control Board, check the
Registration Sensor signal at P/J12-6.
Is the sensor operational?
5 Replace the 500-Sheet Feeder
(page 8-109).
Does the problem persist?
6 Replace the Engine Control Board
(page 8-59).
For detection of misfeed at the Duplex Unit reverse drive/storage section, the
Transport Sensor (PS15) is not unblocked even after the lapse of a predetermined
period of time when the Duplex Switchback Motor has been energized for reverse
drive.
Applicable Error Code
• Jam at Duplex Unit
Open top cover and
duplex unit cover
Initial Actions
Follow the directions in "Initial Actions for Jam Errors" on page 3-56.
Yes No
Go to step 5. Go to step 2.
Go to step 2. Complete.
Go to step 3. Reseat the
connector. If
the problem
persists, go to
step 3.
Go to step 4. Replace the
Registration
Sensor
(page 8-106).
If the problem
persists, go to
step 4.
Go to step 5. Complete.
Complete.
Phaser 6121MFP Service Manual