Oki B431L6

6. Procedures for Repairing
Oki Data CONFIDENTIAL
44983601TH Rev.1
6-12 /
[Jam Error]
-1 Paper feed jam
• 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connector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.
192
)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
Paper feed orientation