Fusing Unit Exit Sensor Off Jam (Short); Chain 77; Fusing Unit Exit Sensor Off Jam (Long) - Fuji Xerox DocuCentre SC2020 Service Manual

077-104 Regi. Sensor Off Jam
BSD-ON:CH8.3
Paper does not Regi Sensor OFF within the specified time range from turning On the Regi Clutch.
Cause/Action
Check the following:
• Malfunction of Regi. Sensor (Digital Input[077-104]).
• Malfunction of Sub Motor (Digital Output[042-003]).
• Malfunction of Regi. Clutch (Digital Output[077-002].
• The Regi Roll and Pinch Roll for transportation failure due to contamination, wear, and deterioration.
• The Transfer Unit for a decrease in transportation force.
• The Drive Gear for wear and damage.
• A paper transportation failure due to foreign substances on the paper path.
• Usage of out of spec paper.
If no problem is found, replace the following parts in sequence:
• DRIVE PWB (PL 18.2)
• ESS PWB (PL 18.2)
077-106 Fusing Unit Exit Sensor On Jam
BSD-ON:CH10.4
The Fusing Unit Exit Sensor did not turn ON within the specified time after the Regi Clutch On.
Cause/Action
Check the following:
• Malfunction of Fusing Unit Exit Sensor (Digital Input[077-101]).
• Malfunction of Fusing Motor (Digital Output[042-005]).
• Malfunction of Regi. Clutch (Digital Output[077-002].
• The Fusing Unit Exit Chute for improper installation and deformation.
• The Transfer Unit for a decrease in transportation force.
• The Drive Gear for wear and damage.
• The Heat Roll for wound up, stuck paper.
• A paper transportation failure due to foreign substances on the paper path.
• Usage of out of spec paper.
If no problem is found, replace the following parts in sequence:
• DRIVE PWB (PL 18.2)
Version 1.1
DC SC2020
(PL 15.1)
(PL 3.4)
(PL 15.1)
(PL 7.1)
(PL 3.4)
(PL 15.1)
• ESS PWB (PL 18.2)

077-108 Fusing Unit Exit Sensor Off Jam (Short)

BSD-ON:CH10.4
The time taken for the Fusing Unit Exit Sensor to turn from ON to OFF is shorter than the specified time.
Cause/Action
Check the following:
• Malfunction of Fusing Unit Exit Sensor (Digital Input[077-101]).
• Malfunction of Regi. Sensor (Digital Input[077-104]).
• Malfunction of Fusing Motor (Digital Output[042-005]).
• Malfunction of Invert Drive Motor (Digital Output[077-014] (Exit)). (When installing Duplex)
• The Heat Roll for wound up, stuck paper.
• Usage of out of spec paper.
If no problem is found, replace the following parts in sequence:
• DRIVE PWB (PL 18.2)
• ESS PWB (PL 18.2)

077-109 Fusing Unit Exit Sensor Off Jam (Long)

BSD-ON:CH10.3
After the Regi Sensor Off, the Fusing Unit Exit Sensor did not turn OFF within the specified time.
Cause/Action
Check the following:
• Malfunction of Fusing Unit Exit Sensor (Digital Input[077-101]).
• Malfunction of Fusing Motor (Digital Output[042-005]).
• Malfunction of Invert Drive Motor (Digital Output[077-014] (Exit)). (When installing Duplex)
• The Exit Roll and Pinch Roll for transportation failure due to contamination, wear, and deterioration.
• The Transfer Unit for a decrease in transportation force.
• The Heat Roll for wound up, stuck paper.
• The Drive Gear for wear and damage.
• Usage of out of spec paper.
If no problem is found, replace the following parts in sequence:
• DRIVE PWB (PL 18.2)
05/2014
2-87
(PL 7.1)
(PL 15.1)
(PL 3.4)
(PL 17.1)
(PL 7.1)
(PL 3.4)
(PL 17.1)

CHAIN 77

Troubleshooting