Tube1 PID reverse error / Tube1 PID lock error / Tube1 PID overload error

Error code
  • 000341 Tube1 PID overload error
  • 000343 Tube1 PID reverse error 
  • 000344 Tube1  PID lock error
Occurrence condition
  • Ink Ejection Pump Motor cannot operate due to large motor load.
  • Ink Ejection Pump Motor is rotating in reverse.
  • Ink Ejection Pump Motor cannot rotate.
Assumed cause
  • An abnormal load was suddenly applied to the motor, and the motor rotated in the opposite direction due to the reaction force.
  • +42V power is not supplied.
  • The load on the motor is greater than expected.
Related parts
  • Harness polarity wrong
  • Ink Ejection Pump Motor (Ink Ejection Pump Encoder)
  • Gears are locked due to foreign object
  • Mechanical control board
  • Main Board
Troubleshooting
Step Confirmation and action YES NO
1

Check harness connection

Is there any abnormality in the harness connected to Maintenance Unit?

Go to step 2

Reconnect the harness.

2

Replace the suspected part

Replace the Maintenance Unit. Does the error still occur?

Go to step 3 End
3

Replace the suspected part

Replace the Mechanical Controller Board. Does the error still occur?

Go to step 4 End
4

Replace the suspected part

Replace the Main Board. Does the error still occur?

Contact Epson local service representatives. End