Phaser 6280 Color Laser Printer Service Manual 4-13
General Troubleshooting
CRU Sensor (Y) CRU Sensor Y
â– OFF
â– H - 0
â– L - 0
Tests the Yellow Print Cartridge Sensor.
CRU
Sensor (M)
CRU Sensor M
â– OFF
â– H - 0
â– L - 0
Tests the Magenta Print Cartridge
Sensor.
CRU Sensor (K) CRU Sensor K
â– OFF
â– H - 0
â– L - 0
Tests the Black Print Cartridge Sensor.
CRU Sensor (C) CRU Sensor C
â– OFF
â– H - 0
â– L - 0
Tests the Cyan Print Cartridge Sensor.
Tray 3 Low
Paper
Tray 3 Low Paper
â– OFF
â– L - 0
â– H - 0
Tests Tray 3 Low Paper Sensor.
Tray 3 No Paper Tray 3 No Paper
â– OFF
â– L - 0
â– H - 0
Tests Tray 3 No Paper Sensor.
Duplex Fan
Alarm
Duplex Fan Alarm
â– OFF
â– L - 0
â– H - 0
Tests Duplex Fan Alarm.
Tray 3 Feed
Motor Alarm
Tray 3 FdMotorAlm
â– OFF
â– L - 0
â– H - 0
Tests Tray 3 Feed Motor Alarm.
MPT No Paper MPT No Paper
â– OFF
â– H - 0
â– L - 0
Tests Tray 1 No Paper Sensor.
Tray 2 No Paper Tray 2 No Paper
â– OFF
â– H - 0
â– L - 0
Tests Tray 2 No Paper Sensor.
Main Motor
Alarm
Main Motor Alarm
â– OFF
â– H - 0
â– L - 0
Tests Main Motor Alarm.
Service Diagnostic Test Table (continued)
Test Control Panel Display Test Description