Nozzles missing

Occurrence condition
  • Nozzles clogged
Suspected cause
  • Inksystem Assy dirty (Cap or Wiper dirty)
  • Air bubbles collected in ink tubes
  • Inksystem Assy failure
  • Print Head failure
Related parts
  • Inksystem  Assy
  • Printhead
Troubleshooting
ProcedureCheck and measureYesNo
1

Check the nozzle check pattern.

Print nozzle check patterns and check whether there are nozzles missing or deflection.

  • Nozzle condition is excellent?

End (No reproduction)

Carry out head cleaning following the nozzle missing table below.

StrengthNumber of missing nozzles
CL11 to 5
CL26 to 20
CL321 or more


If the symptom continues to occur, go to step 2.

2

Visually check the Inksystem Assy.

Checks to make sure there is no problem in the Inksystem Assy related components.

Caution / 注意

* Unlock the CR Unit before the following checks.

Cap parts

Check that the cap surfaces are not dirty.

Visually check that the nozzle surface has been appropriately capped.

  • Manually turn the gear of the Inksystem Unit, move the cap up and down.
Wiper partsCheck that there is not soiling or damage to the wiper parts.

Make sure the wiper is properly moving to the front and backward.

  • Manually turn the gear of the Inksystem Unit.

Is the Inksystem Unit normal?

Go to step 3
  • When cap/wiper is dirty, clean the cap surface / wiper part.
  • When capping failure of the nozzle surface is confirmed, replace the Inksystem Assy.
  • When the wiper part breakage / wiper operation failure is confirmed, replace the Inksystem Assy.


If the symptom continues to occur, go to step 3.

3

Check the ink tubes

Visually check that air bubbles have not collected in the ink tubes.

Note / 補足

If there are parts where the color is unmistakably pale in the supply system ink tubes, air bubbles may have collected.

  • Ink tube is correct condition?
Go to step 4

Execute the head cleaning and then check that the bubbles have been removed from inside the tubes.


If the symptom continues to occur, go to step 4.

4

Replace the Printhead.

  • Replace the Printhead. Has the phenomenon (missing nozzle) been resolved?
EndContact the EPSON Service Department.