FB BS+ excess speed detection (flatbed) (error code: 100073)

Occurrence condition

  • State in which driven at unexpected speed (PID: fast, BS: slow) for control.

Suspected cause

  • FFC disconnection insertion failure in ADF/SCN

  • Mechanical load error (light)

  • Main Board failure.

  • SCN Encoder failure

  • SCN Scale is dirty or damaged.

Related parts
  • ADF/SCN Unit
  • Main Board Assy
Troubleshooting
ProcedureCheck and measureYesNo
1Visually check the FFCs of the ADF/SCN Unit.
  • Check the FFCs (x2) in ADF/SCN to make sure that it is not inserted obliquely, disconnected, or damaged.
Go to step 2
  • Correctly insert the two FFCs.
  • If FFC is damaged, replace the ADF/SCN Unit.
    (Replace the unit even if one of the two FFCs is damaged.)
2Replace the ADF/SCN Unit.
  • Does the error occur after replacing the ADF/SCN Unit?
Go to step 3End
3Replace the Main board Assy.
  • Does the error occur after replacing the Main Board Assy?
Contact the EPSON Service Department.End