Xerox Phaser 8400 Service Manual page 114

Solenoid, Clutch and Pick Troubleshooting Procedure
Step Questions and Actions
1 1. Run the appropriate diagnostic test:
■ 37,017.44 = Head Maintenance Clutch
■ 37,018.45 = Deskew Clutch
■ 37,019.46 = (8500/8550) Main tray
pick Clutch
■ 37,019.46 =(8400) Pick Solenoid
■ 37,020.47 = (8500/8550) Multipurpose
Pick Solenoid
■ 37,020.47 = (8400) Strip Solenoid
■ 37,021.48 = (8500/8550) Strip
Solenoid
■ 37,022.40 = (8400) Preheat Solenoid
■ 37,023.41 = (8500/8550) Head Tilt
Solenoid
2. Did the test pass?
2
1. Check the wiring for the problem clutch or
solenoid.
2. Is the wiring damaged or not working
properly?
8400 8500/8550
37,021.48: 37,024.48:
Troubleshooting Procedure for Tray 1 Elevator
Step Questions and Actions
1 1. Run the Tray 2 Lift Motor test.
2. Did the test pass?
2 1. Check the wiring to the tray 2 lift motor.
2. Is the wiring damaged?
3-48
Tray 1 elevator disconnect. The main tray elevator is not
drawing the expected power from the supply.
Phaser 8400/8500/8550 Color Printer
Yes
Go to Step 3.
Replace the
problem wiring
harness.
PEST Description
Yes
Replace the
electronics
module.
Replace the
wiring harness
No
Go to Step 2.
Replace the
problem
component:
■ Head
maintenance
clutch
■ Media path
drive assembly
■ Pick solenoid
■ Strip
solenoid
■ Head tilt
solenoid
■ Preheater
solenoid
No
Go to Step 2.
Replace the
tray lift motor.