Error Messages and Codes 3-17
Misfeed at Tray 1 (MPT): Jam T1
Paper fed from Tray 1 (MPT) did not reach the Registration Sensor on time.
Applicable Status Code:
Code 155: Misfeed at Tray 1
Initial Actions:
â– Ensure that Tray 1(MPT) is securely attached to the printer.
â– Try picking paper from a different tray.
â– Check the paper path for obstructions or debris.
â– Ensure that the media guides are set correctly.
â– Cycle printer power.
â– If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
â– Feed Roller Assembly MPT, PL5.3.20
â– Interlock Switch, PL9.1.11
â– Registration Sensor, PL4.1.3
â– Feed Solenoid, PL5.3.9
â– Registration Roller Assembly, PL4.2.1
â– Main Drive Assembly, PL8.1.2
â– Print Engine Map 1 P/J Locator (page 10-5)
â– Print Engine Power Wiring Diagram (page 10-17)
â– Print Engine Drive Wiring Diagram (page 10-19)
â– Print Engine Paper Feed Wiring (page 10-26)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Check the following for evidence of fault or
damage:
â– Feed Roller Assembly MPT,
PL5.3.20
â– Tray 1 (M PT )
â– Registration Sensor, PL4.1.3
â– Main Drive Assembly, PL8.1.2
Remove any foreign objects or paper
debris from the paper path.
Is there any damage?
Replace any
damaged or
excessively worn
parts.
Go to Step 2.
2
Test the Registration Sensor.
Run the Service Diagnostics Registration
Sensor test.
Does the sensor function correctly?
Go to Step 6. Go to Step 3.