Ripple pattern

Assumed cause
  • Flight bending occurs due to ink adhesion to the head nozzle surface
  • PG is high, ink droplets are affected by air resistance and flight bend occurs
  • High input voltage, high ink ejection speed (causing airflow inside the machine, causing flight bending)

Defect-related parts
  1. HP Sensor, PG
    PG failure
  2. Head Unit
    PG and input voltage setting value failure in head memory
  3. Belt Drawer Unit
    PG is changing due to Conveyor belt tilt
Troubleshooting
Step Confirmation and action YES NO
1

Run Head Cleaning (CL3)
Print the color gradation pattern.

  • Has the image defect been improved?
 End of work Go to step 2
2

Check device settings (including driver settings)
Check that the user's print settings are set to the rub avoid mode.
After changing to OFF, print the Gradation Pattern.

  • Has the image defect been improved?
 End of work Go to step 3
3

Replace the HP Sensor, PG
Print the color gradation pattern.

  • Has the image defect been improved?
 End of work Go to step 4
4

Replace the Head Unit
Print the color gradation pattern.

  • Has the image defect been improved?
 End of work Go to step 5
5

Replace the Belt Drawer Unit
Print the color gradation pattern.

  • Has the image defect been improved?

(Check that the setting values of Head Memory, PG and Input Voltage are correct)

 End of work

Contact Epson local service representatives.