Iot Fan Motor Failure; 01H) Main Motor Fail; Chain 42; 02H) Ymc Link Sensor Fail - Fuji Xerox DocuCentre SC2020 Service Manual

042-313 IOT Fan Motor Failure

BSD-ON:CH10.4
Abnormality in Fusing Exhaust Fan.
Procedure
Enter CE Mode and turn Digital Output[042-010] ON. Does the Fusing Exhaust Fan rotate?
Y N
Check the power supply line of the Fusing Exhaust Fan (+24VDC). Is the Fusing Exhaust Fan
power supply normal?
Y N
Check the power supply circuit to the Fusing Exhaust Fan.
Turn OFF the power and check the following:
• Disconnection, shortage or contact failure of wire between the Fusing Exhaust Fan and DRIVE
PWB J202.
• Disconnection, shortage or contact failure of wire between DRIVE PWB
• Load towards the Fusing Exhaust Fan.
If no problem is found, replace the following parts in sequence:
• Fusing Exhaust Fan (PL 4.1)
• DRIVE PWB (PL 18.2)
Press [Stop] and turn OFF the power. Check for disconnection, shortage or contact failure of wire
between the Fusing Exhaust Fan and DRIVE PWB J202-3.
If no problem is found, replace the following parts in sequence:
• DRIVE PWB (PL 18.2)
• ESS PWB (PL 18.2)
• Fusing Exhaust Fan (PL 4.1)

042-325 (01h) Main Motor Fail

BSD-ON:CH4.1
Rotation abnormality of the Main Motor.
Procedure
Enter CE Mode and turn Digital Output[042-001] ON.. Does the Main Motor rotate?
Y N
Check the power supply line of the Main Motor (+24VDC).. Is the Main Motor power supply nor-
mal?
Y N
Check the power supply circuit to the Main Motor.
Turn OFF the power and check the following:
• Disconnection, shortage or contact failure of wire between Main Motor
J411.
• Disconnection, shortage or contact failure of wire between DRIVE PWB
A
Version 1.1
DC SC2020
A
• The Drive Gear for wear, damage, and bearing blockage.
• Load towards the Main Motor.
If no problem is found, replace the following parts in sequence:
• Main Motor
• DRIVE PWB
Press [Stop] and turn OFF the power. Check for disconnection, shortage or contact failure of wire
between Main Motor J208-6 and DRIVE PWB J411-1.
If no problem is found, replace the following parts in sequence:
• DRIVE PWB
• ESS PWB
• Main Motor

042-325 (02h) YMC Link Sensor Fail

BSD-ON:CH9.9
J1 and ESS PWB J6.
Abnormality in YMC Link Sensor detection (Malfunction in switching drive between Color Mode and BW
Mode).
Procedure
Remove the Rear Cover. Enter CE Mode and turn Digital Output[042-009] (1st BTR Initialize) ON. The
FC/BW Drive Switch operation will be turned on.. Is the Operating Link Bar moving Up (or Down)?
Y N
Turn OFF the power and check the following:
• Disconnection, shortage or contact failure of wire between DRIVE PWB
SOLENOID P211.
• Wear, damage of Gear type of the DRIVE, Link Bar.
If no problem is found, replace the following parts in sequence:
• DRIVE ASSEMBLY
• DRIVE PWB
• ESS PWB
Turn OFF the power and check the following:
• Dislocation, poor assembly of YMC LINK SOLENOID.
• Disconnection, shortage or contact failure of wire between DRIVE PWB
SOR P109.
If no problem is found, replace the following parts in sequence:
• DRIVE ASSEMBLY
• DRIVE PWB
• ESS PWB
042-326 Sub Motor Fail
J208 and DRIVE PWB
BSD-ON:CH4.2
J1 and ESS PWB J6.
05/2014
2-67
(PL 3.4)
(PL 18.2)
(PL 18.2)
(PL 18.2)
(PL 3.4)
(PL 3.1)
(PL 18.2)
(PL 18.2)
(PL 3.1)
(PL 18.2)
(PL 18.2)
J416 and YMC LINK
J409 and YMC LINK SEN-

CHAIN 42

Troubleshooting