Ink smear 1 (smear on printed side)

Assumed cause
  • Ink accumulation on the head surface
  • Head rubbing due to paper waving
  • Head surface rubbing due to PG abnormality
  • Bits of paper on head or cap
  • Path dirt

Defect-related parts
  1. Anti Static Brush
    The head surface is rubbed because the paper cannot be suppressed
  2. Registration Unit
    Head surface is rubbed against paper due to paper feed failure
  3. Belt Drawer Unit
    Head surface is rubbed against paper due to paper suction failure
  4. High voltage circuit board
    Head surface is rubbed against paper due to paper suction failure
  5. EJ Unit
    Ink smear in paper feed path
  6. HP Sensor, PG
    Head surface rubbing due to PG abnormality
  7. Head Unit
    Ink dripping due to head failure
important / 重要
  • since the envelope cannot be adsorbed, there is a possibility that one-sided paper stains occur. check first.
  • for envelopes, straighten the curl and place it in the Paper Tray.
Troubleshooting
Step Confirmation and action YES NO
1

Run Head Cleaning (CL0)
Print the Ruled Line Pattern

  • Has the image defect been improved?

(Determination of ink accumulation on the head surface or foreign substances adhesion)

 End of work Go to step 2
2

Check the head nozzle surface
Check the head nozzle surface for any foreign objects, such as a piece of paper left, and remove any foreign substances.

  • Has the image quality been improved?(Remove the EJ unit and check directly)
 End of work Go to step 3
3

Print the Ruled Line Pattern on non-user paper

  • Has the image defect been improved?

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

 Go to step 4 Go to step 5
4

Thick paper setting
Select “System Administration” > “Printer Settings” > “Thick paper” on the control panel, then select mode 1 or mode 2* to print Ruled Line Pattern,
Print the Ruled Line Pattern.

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

Clean the Paper Feed Path
Clean the paper supply / discharge path.

  • Has the image defect been improved?
 End of work Go to step 6
6

Clean the Belt Unit (Cleaning ）

  • Has the image defect been improved?
 End of work Go to step 7
7

Replace the Anti Static Brush Unit
Has the image defect been improved?

 End of work Go to step 8
8

Replace the Registration Unit
Has the image defect been improved?

 End of work

Replace the parts/components to be checked one by one.

* : Mode 1: Print quality may be reduced due to changing the height of PG (head surface and print surface).
Mode 2: Mode 1 + printing speed is reduced to 1/4.
The rub reduction setting can be set from the PC driver / main unit panel, and the driver setting has priority.
Example) Even if the mode is set on the main unit panel, if it is off on the driver, it will be off during PC printing.