Xerox Phaser 6280 Service Manual page 273

Phaser 6280 Color Laser Printer Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
13 1. Check the Print Cartridges for
correct installation.
2. Are the Print Cartridges correctly
installed?
Does the error still occur?
14
15 1. Check the toner density. Perform
Gradation Test Print (page 5-13):
Service Mode
Gradation ESS.
2. Compare the density of four colors
toner. Is there dark color on the
print?
Check the Solenoid in the Transfer Unit
16
for operation.
1. Perform the ADC Sensor Solenoid
test (page 4-58):
Engine Diag >
(CTD) Sensor Solenoid.
2. Perform the ADC Sensor LED test
(page 4-59): Service Mode
Engine Diag >
(CTD) Sensor LED.
3. Does the ADC Sensor operate
properly?
1. Check the wiring harness
17
connectors P/J27, P/J272, and P/
J2721 between the MCU Board and
the Transfer Unit.
2. Are the connectors securely
connected?
Check the Front Cover Harness for
18
continuity.
1. Disconnect P/J2721 from the
Transfer Unit and P/J272 from the
Right Side Harness.
2. Check continuity between P/J2721
<=> P/J272.
Check the Right Side Harness for
19
continuity.
1. Disconnect P/J27 from the MCU
Board and P/J272 from the Front
Cover Harness.
2. Check continuity between P/J27 <=>
P/J272.
Yes
Go to step 15.
Go to step 15.
Go to step 16.
> Test Print >
Go to step 21.
Service Mode >
Motor Test > ADC
>
Motor Test > ADC
Go to step 18.
Go to step 19.
Go to step 20.
Error Messages and Codes
No
Reseat the Print
Cartridge(s)
(page 8-10).
Go to step 14.
Complete.
Replace the
MCU Board
(page 8-86).
Go to step 17.
Reconnect the
connectors.
Go to step 18.
Replace the
Front Cover
Harness.
Replace the
Right Side
Harness.
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