Xerox 7750DXF - Phaser Color Laser Printer - Page 87

Error Messages and Codes 3-21
8
1. Using a Type II Toner Vacuum, vacuum
out the belt cleaner and waste auger.
2. Is the actuating lever broken off of the
belt cleaner toner gate?
Replace the belt
cleaner assembly.
Go to step 9.
9
1. Remove the waste toner cartridge.
2. Enter service diagnostics and run the
Agitator Motor test.
3. Does the motor operate correctly?
Verify the waste
toner cartridge is
fully seated.
Complete.
Go to step 10.
10
1. Check the voltage at J532A16 on the
harness.
2. Is the voltage +24 VDC?
Go to step 12. Go to step 11.
11
1. Check the voltage at J43-12 on the
harness.
2. Is the voltage +24 VDC?
Replace the
engine control
board.
Go to step 13.
12
1. Check the voltage at J532A17 on the
harness.
2. Is the voltage +24 VDC?
Replace the
engine control
board.
Replace the
waste toner
agitator motor.
13
Is +24 VDC present at the low-voltage
power supply board?
Troubleshoot the
wiring between
the +24 VDC
LVPS and the
Engine Control
Board.
See
"Troubleshooting
the Low-Voltage
Power Supplies"
on page 4-17.
14
1. Remove the accumulator belt
assembly.
2. Enter Service Diagnostics and run the
Accum Belt Motor test.
3. Does the motor turn?
Diagnose and
repair the
mechanical
condition binding
the accumulator
belt assembly.
Since the
accumulator belt
drive motor is a
servo motor,
there are no
voltage checks.
This failure can
be caused by 1 of
3 components.
Replace and test
in the following
order:
■ motor
■ interface
board
■ engine control
board
Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No