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3-68
Phaser 6280 Color Laser Printer Service Manual
Error Messages and Codes
4
1. Perform the CRU Sensor test:
Service Mode
>
Engine Diag
>
Sensor Test
>
CRU Sensor
.
■
Yellow CRU Sensor (page 4-32)
■
Magenta CRU Sensor (page 4-33)
■
Black CRU Sensor (page 4-34)
■
Cyan CRU Sensor (page 4-35)
2. Does the number on the Control
Panel increase by 1 when the Print
Cartridge is reseated?
Replace the
MCU Board
(page 8-86).
Go to step 5.
5
1. Check the Toner Sensor wiring
harness connectors between the
Print Cartridge Sensor and the MCU
Board.
■
Yellow: P/J19 and P/J191
■
Magenta: P/J19 and P/J192
■
Black: P/J19 and P/J193
■
Cyan: P/J19 and P/J194
2. Are the connectors securely
connected?
Go to step 6.
Reconnect the
connectors.
Go to step 6.
6
Does the error still occur?
Go to step 7.
Complete.
7
Check the Toner Sensor Harness for
continuity.
1. Disconnect P/J Harnesses from the
MCU Board and the Print Cartridge
Sensor.
■
Yellow: P/J19 and P/J191
■
Magenta: P/J19 and P/J192
■
Black: P/J19 and P/J193
■
Cyan: P/J19 and P/J194
2. Check continuity between P/J
connectors:
■
Yellow: P/J19 <=> P/J191
■
Magenta: P/J19 <=> P/J192
■
Black: P/J19 <=> P/J193
■
Cyan: P/J19 <=> P/J194
Go to step 8.
Replace the
Toner Sensor
Harness.
8
Check the Print Cartridge Sensor
signal.
1. Disconnect P/J19 from the MCU
Board.
2. Is there +3.3 V across the Toner
Sensor Harness?
■
Yellow: J19-1 pin <=> J19-2 pin
■
Magenta: J19-4 pin <=> J19-5 pin
■
Black: J19-7 pin <=> J19-8 pin
■
Cyan: J19-10 pin <=> J19-11 pin
Go to step 9.
Replace the
MCU Board
(page 8-86).
Troubleshooting Procedure Table (continued)
Step
Actions and Questions
Yes
No
Содержание Phaser 6280
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