Incorrect Colors

Assumed cause
  • Wrinkles due to paper waving (originating from paper and poor paper absorption)
  • Paper transport failure
  • Fluctuation of ink droplet ejection speed due to defective voltage applied to head
  • PG failure

Defect-related parts
  1. Head Drive Board
    Input voltage failure
  2. Belt Drawer Unit
    Paper suction / charge failure
  3. Head Unit
    Incorrect application of input voltage / Discharge failure
  4. HP Sensor, PG
    PG failure Check if PG setting is correct
  5. Main Board
    Poor image data
  6. Head FFC
    Data transfer failure
  7. Anti Static Brush
    Erroneous load on the Conveyor belt
  8. HIGH VOLTAGE POWER SUPPLY UNIT
    Poor charging of the Conveyor belt
Troubleshooting
Step Confirmation and action YES NO
1

Run Head Cleaning (CL0)
Print the color gradation pattern.

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

Print the 20102 Ruled Line Pattern on non-user paper

  • Has the image defect been improved?

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

 End of work Go to step 3
3

Print Adsorption Check Pattern.

  • Is the head nozzle surface rubbed?

(Head waveform input failure or transport belt (paper transport, PG) failure or isolation)
Go to step 4
4

Replace the Head Drive Board
Print the Ruled Line Pattern

  • Has the image quality been improved. (Is the input voltage appropriate?  )
 End of work Go to step 5
5

Clean the Belt Drawer Unit
Print the Ruled Line Pattern

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

Replace the Belt Drawer Unit
Print the Ruled Line Pattern

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

Replace the Head Unit
Print the Ruled Line Pattern

  • Has the image defect been improved?
 End of work

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