3-60 Phaser 6180 Color Laser Printer Service Manual
Error Messages and Codes
Insert Tray 3 (Tray 3 Missing)
The Tray 3 Size Switch indicates that Tray 3 is not installed.
Applicable Chain Link
■ Chain Link 024-947: Insert Tray 3 (Tray Missing)
■ Chain Link 024-947: Insert Tray 3
Initial Actions
■ Remove the tray and inspect the tray cavity to ensure that it is free of 
obstructions or debris.
■ Reinstall the tray and cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Tray 3 Size Switch, PL12.2.5
■ MCU Board, PL9.1.20
■ C2 Chute Harness, PL12.2.7
■ “Map 6 - Optional 550-Sheet Feeder” on 
page 10-15
■ “Optional 550-Sheet Feeder Wiring 
Diagram” on page 10-50
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Check the tray for correct installation. 
Is Tray 3 correctly installed?
Go to step 3. Reseat tray 2.
2 Does the error still occur? Go to step 3. Complete.
3 Perform the Tray 3 Paper Size test 
(page 4-39): Service Mode > Sensor 
Test > Tray3 Paper Size.
Does the Switch operate properly?
Complete. Go to step 4.
4 Check the C2 Chute Harness for 
continuity.
1. Disconnect P/J421 and P/J4211.
2. Check continuity between P/J421 
<=> P/J4211.
Go to step 5. Replace the C2 
Chute Harness.
5 Replace the Tray 3 Size Switch 
(page 8-105). Does the error still 
occur?
Replace the 
MCU Board 
(page 8-87).
Complete.