Banding in the paper feeding direction. (Vertical banding)

Suspected cause

  • PG adjustment failure

  • CR Scale and CR Encoder abnormality

  • CR Belt tension abnormality

  • Suction power setting failure

  • Suction Fan failure

  • Lubrication on the CR moving parts is insufficient

  • The Print Head FFC and the tube clamp are not mounted at equal intervals of 92 mm. (This causes the tube bundle to note move smoothly and fly around.)*1
    *1: Pay particular attention after removing the clamps, for example, for Ink Tube or Head FFC replacement.

  • Disrupted mechanical balance from transport between users

Parts/Components to be checked

  1. Print Head

  2. Check clamp gap

  3. CR Scale

  4. CR Encoder

  5. CR Belt

  6. CR Oil Pad

  7. CR Motor

  8. Platen Suction Fan.

Troubleshooting
StepConfirmation points and methodsPageYESNO
1

Perform head cleaning (CL3) again

Does the product recover from the failure?

CleaningEndGo to step 2
2

Perform head inclination adjustment (CR direction)/head slant adjustment (PF direction)/Bi-D Adjustment/ruled line deviation adjustment

Does the product recover from the failure?

Head Inclination Check & Adjustment (CR direction)

Head Slant Check & Adjustment (PF direction)

Bi-D Adjustment

Ruled Line Deviation Adjustment (Auto)

EndGo to step 3
3

Perform PG Check & Adjustment

Does the product recover from the failure?

PG Check & AdjustmentEndGo to step 4
4

Check for CR Scale, CR Encoder contamination/damage

  • Perform CR Scale contamination check with Service Program.
  • Check if the CR Scale is damaged or contaminated.
    Clean the CR Scale if contaminated.
  • Check that the CR Encoder is installed correctly.
  • If the CR Scale/CR Encoder is damaged, replace it.

Does the product recover from the failure?

CR Scale Check

CR Scale

CR Encoder

EndGo to step 5
5

Check CR Belt tension

  • Perform CR Belt tension adjustment.

Does the product recover from the failure?

CR Belt Tension Check & AdjustmentEndGo to step 6
6

Check if the media is warped

  • If so, carry out paper feed again.

Does the product recover from the failure?

---EndGo to step 7

7

Use the Service Program to run an operation check of the Suction Fan.

  • If there is a problem with the Platen Suction Fan, then replace.

Does the product recover from the failure?

Suction Fan Check

Platen Suction Fan.

EndGo to step 8
8

Lubrication to the CR Oil Pad.

Does the product recover from the failure?

Lubrication 10EndGo to step 9
9

Check the CR Motor

  • Check if any service call related to the CR Motor has occurred using the NVRAM viewer.
  • If so, replace the CR Motor.

Does the product recover from the failure?

CR MotorEndEscalate to person in charge