Oki ES9160 Maintenance Manual page 598

8.3.10 Paper feeding system related service call
[C040] PFP motor is abnormal
Classification
Paper feeding system related service
call
Proce
Check item
dure
1 Is the PFP motor working?
(Perform the output check
in the test mode: 03-109/
159)
2 Is the LED on the PFP
motor board lit without
flickering?
3 PFP board
LGC board
Parts to be replaced
PFP motor
PFP board
LGC board
ES9160 MFP / ES9170 MFP
ERROR CODE AND TROUBLESHOOTING
PFP motor is abnorma
Result
Yes
No 1. Check if the signal line connector CN506 of
the PFP motor is disconnected.
2. Check if the connector CN246 on the PFP
board is disconnected.
3. Check if the connector CN241 on the PFP
board is disconnected.
4. Check if the connector CN318 on the LGC
board is disconnected.
5. Check if the connector pins are
disconnected and the harnesses are open
circuited.
6. Check if the conductor patterns on the PFP
motor board, PFP board and LGC board are
short circuited or open circuited.
7. Replace the PFP motor.
8. Replace the PFP board.
9. Replace the LGC board.
Yes
No 1. Check if the connector pins are
disconnected and the harnesses are open
circuited.
2. Check if the conductor patterns on the PFP
motor board, PFP board and LGC board are
short circuited or open circuited.
3. Replace the PFP motor.
4. Replace the PFP board.
5. Replace the LGC board.
1. Check if the PLL lock signal CN246-7
output from the PFP board is always "L"
level.
2. Check if the voltage supplied to the
microcomputer input terminal IC5-17 is
always "L" level.
3. Replace the PFP board.
4. Replace the LGC board.
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