Phaser 6180 Color Laser Printer Service Manual 3-57
Error Messages and Codes
Load Tray 3 (Paper Mismatch)
The paper size mismatch is detected in Tray 3.
Applicable Chain Link
■ Chain Link 024-911: Load Tray 3
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 References
■ Tray 3, PL12.3.1
■ Tray 3 Size Switch, PL12.3.5
■ 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 3 Retard Roll, PL12.3.10
■ “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 the 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.
3 Does the error still occur? Go to step 4. Complete.
4 Reseat the paper End Guide. Does the 
error still occur?
Go to step 5. Complete.
5 Replace Tray 3. Does the error still 
occur?
Replace the 
MCU Board 
(page 8-87).
Complete.