Samsung SL-M4580FX - Page 222

4.Troubleshooting
►ErrorCode
U3-4210
►Errormessage
Topdoorofscannerisopen
►Symptom
DSDFcoverisopen.
►Troubleshootingmethod
1)ClosetheDSDFcoverproperly.
2)Ifthiserroroccurscontinually,checkthefollowing:
a)ChecktheDSDFcoveropensensoranditsharness.Ifthereisadefectivepart,replaceit.
b)Ifbothofthemarenormal,checktheCover-OpenRib.Ifitisbroken,replacetheCover-Open.
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