Dark lines/Banding

Assumed cause
  • Cockling (wrinkling) of paper
  • Foreign objects on Nozzle surface
  • Excess ink impact between head chips

Defect-related parts
  • Head Unit
    BRS incorrect adjustment in manufacturing process
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

Print gradation patterns. Do not use the user’s paper.

  • Has the image defect been improved?

(Due to user paper or separation. Use unopened or conditioned paper)

End of work
* If user paper cannot be changed > Go to step 3.

 Go to step 3
3

Perform the Head Angular Adjustment
Perform the Banding Adjustment: By Feed Speed Mode

  • Has the image defect been improved?

(Re-adjust the machine)

 End of work Go to step 4
4

Replace the Head Unit

  • Has the image defect been improved?
 End of work

Contact Epson local service representatives.