Print smudges

Occurrence condition

  • Unexpected smudges can be seen somewhere (including back side) on printouts.

    • A: Paper feed direction

    • B: Y direction

Suspected cause
  • Contamination of Scanner Glass
  • Contamination of Glass for ADF scanning
  • Curling/waviness of the paper used
  • Dirt transferred or foreign objects attached from feed path
  • Dirt transferred or foreign objects attached from the printhead
  • Dirt transferred from the CR Unit
Related parts
  • Platen
  • Roller
  • Ink System Unit
  • CR Unit
  • Printhead
  • Printer Mechanism
Troubleshooting
ProcedureCheck and measureYesNo
1

Check whether printing or copying

    • Check whether the symptom occurs with printing or with copying.

Occurs with printing and copying. Go to step 2

  • Occurs with copying only. Refer to ADF/SCN trouble.
2

Confirm the contamination adherence.

Inside the productCheck that there is no noticeable dirt inside the product.
PlatenCheck that there is no noticeable dirt on the platen.
Feed pathCheck that there is no dirt on the various feed rollers on the feed path.
CR side surfaceCheck that there is no dust or ink adhered.

Are the check results OK (no dirt)?

Go to step 3
  • Clean the corresponding parts.
Note / 補足

If there are large ink deposits, check that there is no ink leaking.

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

3

Check the paper and settings

  • Paper: Check that the paper is in an appropriate state (no curling).

  • Settings: Check whether or not the paper settings are appropriate.


Are the paper status and paper settings appropriate?

Go to step 4
  • Change the paper or paper settings.
  • Use the rubbing avoidance mode.

When the phenomenon is improved, explain that the phenomenon is caused due to the paper or settings, and make sure the appropriate paper and paper settings are used. Also, recommend the user to use the wear (rubbing) prevention mode.

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

4

Visually check the Inksystem Assy.
Perform the following checks to make sure there is no problem in the Inksystem Unit 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 parts

Check 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 5
  • When cap/wiper is dirty, clean the cap surface / wiper part.
  • When capping failure of the nozzle surface is confirmed, replace the Inksystem Unit.
  • When the wiper part breakage / wiper operation failure is confirmed, replace the Inksystem Unit.

If the symptom continues to occur, go to step 5.

5

Check the PG
Check the PG with the thickness gauge and check that it is within the specified value range (1.60 ±0.10 mm).

Go to step 6
  • Perform PG adjustment.

If the symptom continues to occur, go to step 6.

6

Check the nozzle surface of the Printhead.
Make sure there are no scratches or dirt in the Printhead (nozzle surface).

Go to step 7
  • When the nozzle surface of the Printhead is dirt. Clean the nozzle surface of the Printhead using a dust-free cloth.
  • When the Printhead (nozzle surface) is damaged, replace the Printhead.

If the symptom continues to occur, go to step 7.

7

Check around the CR Unit
Remove the CR Unit and check that there is no dirt on the bottom surface.

Replace the Printer Mechanism.
  • Clean the bottom of the CR Unit.

If the symptom continues to occur, go to step 8.

8

Replace the Printer Mechanism.

Does the error occur after replacing the Printer Mechanism?

Contact the EPSON Service Department.End