Xerox Phaser 6600 Service Manual page 296

Error Troubleshooting
077-304 IOT Cover Rear Open
Step Check
Possible causative parts:
• Rear Interlock Switch (PL19.1.21)
• LVPS (PL18.1.34)
1 Check the Rear Interlock Switch operation
Execute Digital Input diagnostic test 041-301, and check the
Rear Interlock Switch operation.
Does it function normally?
2 Check the Rear Interlock Switch connection
Check the connection between the Rear Interlock Switch and
the LVPS.
Is P/J41 connected securely?
3 Check after replacing the Rear Interlock Switch
Replace the Rear Interlock Switch.
Does the error still occur?
091-400 IOT Waste Toner Box Near Life
091-911 IOT Waste Toner Box Life Over
Step Check
Possible causative parts:
• Toner Full Sensor (PL4.1.17)
• MCU Board (PL18.1.13)
1 Check the Toner Full Sensor operation
Execute Digital Input diagnostic test 094-202, and check the
Toner Full Sensor operation.
Does it function normally?
2 Check the Toner Full Sensor connection
Check the connection between the Toner Full Sensor and the
MCU Board.
Are P/J203 and P/J29 connected securely?
3 Check the power to the Toner Full Sensor (+5 VDC)
Check if the voltage between the MCU Board ground and the
P/J29-20 pin is about +5 VDC.
2-200 Phaser 6600 and WorkCentre 6605
Service Manual
Yes No
Replace the MCU Go to step 2.
Board.
Go to step 3. Connect P/J41
Replace the LVPS.
Yes No
Replace the MCU Go to step 2.
Board.
Go to step 3. Connect P/J203
Replace the
Toner Full Sensor. page 2-223.
Xerox Internal Use Only
securely.
Finished.
and P/J29
securely.
Refer to