Phaser 6180 Color Laser Printer Service Manual 3-53
Error Messages and Codes
Tray and Paper Errors
Load Tray 1 (MPT) (Paper Mismatch)
The paper size mismatch is detected in Tray 1 (MPT).
Applicable Chain Link
■ Chain Link 024-958: Load Tray 1 (MPT)
Initial Actions
■ Inspect the tray to ensure that it is free of obstructions, is loaded with 
supported paper, and the Guides are adjusted correctly.
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map Reference
■ Tray 1 (MPT) Cover, PL2.1.24
■ Size Switch, PL7.1.18
■ MCU Board, PL9.1.20
■ Registration Sensor Harness, 
PL3.2.37
■ Right Side Harness, PL10.1.15
■ Registration Sensor, PL3.2.30
■ Feeder Unit, PL3.2.1
■ Tray 1 (MPT) Feed Roll, PL3.1.10
■ “Map 1 - Electrical and Drive” on 
page 10-10
■ “Map 2 - Laser Unit” on page 10-11
■ “Map 4 - LVPS and MCU Board” on 
page 10-13
■ “Main Drive” on page 10-34
■ “Feeder” on page 10-36
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 Check the paper size. Does the paper 
size meet specifications?
Go to step 2. Replace the 
paper with the 
correct 
specifications.
2 Check the paper size setting. Does the 
paper match with the settings in the 
Control Panel?
Go to step 4. Correct the 
paper settings 
in the Control 
Panel. Go to 
step 3.
3 Does the error still occur? Go to step 4. Complete.