SDL Bi-Fold Eject Jam (Feed delay)

Error code
  • 121 SDL Paper Transport Jam (Feed delay)
Occurrence condition
  • SDL output sensor does not turn ON even after the specified time has passed after the half-folding operation has started.
Assumed cause
  • Rollers, guides, etc. are dirty, deformed, or not installed properly
  • Damaged or malfunctioning SDL Discharge Sensor
  • SDL Folding Blade Drive Motor Dirty, Missing or Broken
  • Failure of the SDL Unit Main Board
  • Floor Finisher main board failure
Related parts
  • SDL Eject Paper Sensor
  • SDL Folding Blade Drive Motor
  • SDL Unit Main Board
  • Floor Finisher Main Board
Troubleshooting

Step

Confirmation and action

YES

NO

1

Check the Paper transport parts

Is the  Paper transport parts installed properly?

Are the paper transport parts dirty or deformed?

Reinstall the paper transport assembly

Replace if not repaired

Go to step 2

2

SDL Ejection Paper SensorCheck the connection of the connector

Is the SDL paper ejection sensor properly connected?

Go to step 3 reconnect SDL paper ejection sensor
3

SDL Ejection Paper SensorOperation Check

Is the SDL paper ejection sensor operating normally in the diagnostics menu?

Go to step 4 replace SDL paper ejection sensor
4

Confirmation of connector connection of SDL Folding Blade Drive Motor

Is the SDL Folding Blade drive motor connected properly?

Go to step 5 Reconnect the SDL Folding Blade Drive Motor
5

Operation check of SDL Folding Blade Drive Motor

Is the SDL Folding Blade drive motor operating normally in the diagnostics menu?

Go to step 6 Replace SDL Folding Blade Drive Motor
6

Replace SDL Unit Main Board

Have you reconnected and repaired the connector on the SDL unit main board?

Go to step 7 Replace the SDL Unit Main Board
7

Replacing floor finisher main board

Have you reconnected and repaired the connector on the floor finisher main board?

End Replace floor finisher main board