Cover open, Duplex unit

Detection condition
  • The Duplex Cover is open.
Defect-related parts
  • Interlock Switch
  • Cover open, Duplex unit
  • Harness
  • Mechanical control board
Troubleshooting
Step Confirmation and action YES NO
1

Check the status of Duplex Cover

  • Is the Duplex Cover closed correctly?
 Go to step 2 Close the cover correctly
2

Check the shape of Duplex Cover

  • Check the shape of the part pressing the Interlock Switch. Is there any deformation or damage on the corresponding part?
 Replace the Paper feed cover Go to step 3
3

Check the operation of interlock switch
Check the operation of  the Interlock Switch using the diagnostic function.

  • Judgment: Does the signal change by opening/closing the cover?

Replace the mechanical control board

 Go to step 4
4

Check the installation of interlock switch and connector

  • Make sure the interlock switch is installed normally or the connector is inserted all the way seated.
 Fully insert the connectors. Replace the Interlock Switch