Oki  Data  CONFIDENTIAL
44871001TH Rev.6 
8-55
8. TROUBLESHOOTING PROCEDURES
8.5.5. (4) Feed jam (Error code 380, 381)
(4-1) Jam occurs immediately after the power is turned on.
Check item Check operation
Actions for NG 
results
(4-1-1) Check condition of paper running path
Paper running path 
of the front unit
Open the front cover check if paper is not 
jammed in the paper running path.
Remove the 
paper
(4-1-2) Check condition of the mechanical parts
Write sensor Does the write sensor lever work normally? 
(It moves freely by touching.)
Replace the 
paper sensor 
plate.
Clean a sensor.  Replace the main 
board.
(4-2) Jam occurs immediately after the paper feed is started.
Check item Check operation
Actions for NG 
results
(4-2-1) Check condition of paper running path
Paper running path 
of the front unit
Open the front cover check if paper is not 
jammed in the paper running path.
Remove the 
paper
(4-2-2) Check condition of the mechanical parts
Write sensor Does the paper reach the write sensor lever? YES:
Go next question.
NO:
Go Check paper 
feed roller.
Does the ejection sensor lever work normally? 
(It moves freely by touching.)
Replace the write 
sensor lever.
Is theIN_WR connector of the main board 
connected properly?
Connect the 
IN_WR connector 
properly.
Clean the write sensor Replace the main 
board.
Paper feed roller Does the paper feed roller rotate? Replace Paper 
Feed Roller or 
Paper Feed 
Clutch.
Is the image drum cartridge appropriately set? Set the image 
drum cartridge 
appropriately.