Phaser 6128MFP Service Manual 3-41
Error Messages and Codes
Jam at Front Cover
The Manual Feed No Paper Sensor did not detect media. This troubleshooting
procedure applies to this error.
Applicable Error
• Jam at Front Cover
Initial Actions
• Check the condition of the Manual Feed Detect Sensor actuator.
• Cycle printer power.
• If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Manaul No Paper Sensor, PL3.2.13
■ Left Side Harness, PL10.4.18
■ MCU Board, PL10.7.7
■ “Map 2 - Feed and Laser Unit” on page 10-7
■ “Media Feed” on page 10-15
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Run the Manual Feed Sensor test
(DI-0) (page 4-39).
Use the actuator to toggle the
sensor output.
Does the sensor operate?
Go to step 2. Go to step 3
2 Cycle system power.
Does the error persist?
Replace the
MCU Board
(page 8-57).
Complete.
3 Check connectors P/J23 and P/J233
between the MCU Board and the
Manual Feed No Paper Sensor.
Are the connectors secure?
Go to step 4. Reconnect the
connectors.
4 Check Left Side Harness continuity.
Disconnect P/J23 from the MCU
Board and P/J233 from the Manual
Feed No Paper Sensor.
Is the harness damaged?
Repair or
replace the
harness
(PL10.4.18).
Go to step 5.
5 Check for +3.3 V at J23 on the MCU
Board.
Is +3.3 V available between J23-6
<=> ground?
Go to step 6. Replace the
MCU Board
(page 8-57).
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