3-18 Phaser 6180 Color Laser Printer Service Manual
Error Messages and Codes
Jam at Tray 1 (MPT)
Paper fed from Tray 1 (MPT) did not reach the Registration Sensor on time.
Applicable Chain Link
■ Chain Link 075-100: Jam at Tray 1
Initial Actions
■ Try picking paper from a different tray.
■ Check the paper path for obstructions or debris.
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map Reference
■ MCU Board, PL9.1.20
■ Tray 1 (MPT) Retard Holder Kit, 
PL2.1.3
■ MPT Feed Roll, PL3.1.10
■ Tray 1 Feed Solenoid, PL3.1.3
■ Turn Roll, PL3.2.32
■ Feeder Unit, PL3.2.1
■ Registration Sensor Harness, 
PL3.2.37
■ Right Side Harness, PL10.1.15
■ Turn Clutch, PL3.2.25
■ Drive Assembly, PL8.1.7
■ “Map 2 - Laser Unit” on page 10-11
■ “Map 4 - LVPS and MCU Board” on 
page 10-13
■ “Tray 1 (MPT) and Registration” on 
page 10-32
■ “Feeder” on page 10-36
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 Check the paper condition. Is the 
paper damaged?
Replace the 
paper.
Go to step 2.
2 Check the paper setting. Does the 
paper in use match with the paper 
settings on the Control Panel?
Go to step 3. Correct the 
paper settings 
on the Control 
Panel. Go to 
step 3.
3 Does the error still occur? Go to step 4. Complete.
4 Reseat the Tray 1 Side Guides. Does 
the error still occur?
Go to step 5. Complete.