Xerox Phaser 6280, Руководство по обслуживанию

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3-140 Phaser 6280 Color Laser Printer Service Manual
Error Messages and Codes
6 1. Check the toner density. Perform
Gradation Test Print (page 5-13):
Service Mode > Test Print >
Gradation ESS .
2. Compare the density of four colors
toner. Is there dark color on the
print?
Go to step 7. Replace the
MCU Board
(page 8-86).
7 Check the Solenoid in the Transfer Unit
for operation.
1. Perform the ADC Sensor Solenoid
test (page 4-58): Service Mode >
Engine Diag > Motor Test > ADC
(CTD) Sensor Solenoid .
2. Perform the ADC Sensor LED test
(page 4-59): Service Mode >
Engine Diag > Motor Test > ADC
(CTD) Sensor LED .
3. Does the ADC Sensor operate
properly?
Go to step 12. Go to step 8.
8 1. Check the wiring harness
connectors P/J27, P/J272, and P/
J2721 between the MCU Board and
the Transfer Unit.
2. Are the connectors securely
connected?
Go to step 9. Reconnect the
connectors.
Go to step 9.
9 Check the Front Cover Harness for
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.
Go to step 10. Replace the
Front Cover
Harness.
10 Check the Right Side Harness for
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.
Go to step 11. Replace the
Right Side
Harness.
11 Check the ADC Sensor signal.
1. Disconnect P/J27 from the MCU
Board.
2. Is there +5 V across ground <=>
J27-7 pin?
Replace the
Transfer Unit
(page 8-8). Replace the
MCU Board
(page 8-86).
12 1. Replace the corresponding Print
Cartridge (page 8-10).
2. Does the error still occur?
Replace the
Laser Unit
(page 8-50). Complete.
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No