2-17
[Jam Error]
-1 Paper feed jam (Error 390)(Error 391)(Error 392)
• Does a jam error occur when turning on the power?
• Yes
Is there any paper in the entrance sensor?
• Yes
Remove the paper
• No
Does the entrance sensor lever work normally? (It moves
freely by touching.)
• No
Replace the entrance sensor lever.
• Yes
Clean the entrance sensor, or replace the main board.
• No
A jam error occurs after feeding paper.
• Yes
Is the paper sent to the entrance sensor lever?
• Yes
Does the entrance sensor lever work normally? (It
moves freely by touching.)
• No
Replace the entrance sensor lever.
• Yes
Is the IN _WR connec tor of the main board
connected properly?
• No
Connect the IN_WR connector properly.
• Yes
Clean the entrance sensor, or replace the main
board.
• No
Replace the paper feed roller, pick-up roller or paper
cassette.
• No
Does the paper feed roller rotate?
• Yes
Set the paper cassette appropriately.
• No
Does the paper feed clutch work normally?
• Yes
Replace the paper feed roller and shaft.
• No
Is HCLT connector of the main board appropriately connected?
• No
Connect HCLT connector appropriately.
• Yes
Is the coil resistance of the paper feed clutch (Normal
resistance: Pin1, Pin2, and approx. 240 ) normally?
• No
Replace the paper feed clutch.
• Yes
Replace the main board.
Ejection sensor
Paper ejection roller
Heat roller
Transfer roller
Write sensor
Regist roller
Entrance sensor
Paper-end sensor
Pick-up roller
Feed roller
Pa
per f
eed or
ientation
2. Procedures for Repairing