Banding in the carriage movement direction (Horizontal banding).

Suspected cause

  • Print Head related adjustment failure (inclination, slant)

  • Paper feed amount correction value abnormality

  • PF Scale and PF Driven Roller Encoder abnormality

  • PF Belt tension abnormality

  • PF Driven Roller Motor failure

  • Sub PF Scale, Sub PF Driven Roller Encoder abnormality

  • Sub PF Belt tension abnormality

  • Sub PF Driven Roller Motor failure

  • Print Head nozzles missing

  • Flange clogged with paper dust

  • Paper feeding does not work correctly because the slack take-up operation is not performed correctly due a flange failure

  • Disrupted mechanical balance from transport between users

  • Wrong adjustment procedure at the repair.
Parts/Components to be checked

  1. Print Head

  2. PF Scale

  3. PF Encoder

  4. PF Belt

  5. PF Driven Roller Motor

  6. Sub PF Encoder

  7. Sub PF Belt

  8. Sub PF Driven Roller Motor

Troubleshooting
StepConfirmation points and methodsPageYESNO
1

Perform head cleaning (CL3) again

Does the product recover from the failure?

CleaningEndGo to step 2
2

Perform paper configuration with the control panel

Does the product recover from the failure?

---EndGo to step 3
3

Perform head Inclination adjustment (CR direction)/head slant adjustment (PF direction)/Ruled line deviation adjustment

Does the product recover from the failure?

Head Inclination Check & Adjustment (CR direction)

Head Slant Check & Adjustment (PF direction)

Ruled Line Deviation Adjustment (Auto)

EndGo to step 4
4

Perform PF paper feed adjustment

Does the product recover from the failure?

Paper Feed Adjustment


End

Go to step 5
5

Check for PF Scale, PF Encoder contamination/damage.

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

Does the product recover from the failure?

PF Scale Check

PF Scale

PF Encoder

EndGo to step 6
6

Check PF Belt tension.

  • Perform PF Belt tension adjustment.

Does the product recover from the failure?

PF Belt Tension Check & AdjustmentEndGo to step 7
7

Check the PF Driven Roller Motor

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

Does the product recover from the failure?

PF Driven Roller MotorEndGo to step 8
8

Check for Sub PF Scale, Sub PF Encoder contamination/damage.

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

Does the product recover from the failure?

Sub PF Scale Check

Sub PF Scale

Sub PF Encoder

EndGo to step 9
9

Check Sub PF Belt tension

  • Perform Sub PF Belt tension adjustment.

Does the product recover from the failure?

Sub PF Belt Tension Check & AdjustmentEndGo to step 10
10

Check the Sub PF Driven Roller Motor

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

Does the product recover from the failure?

Sub PF Driven Roller MotorEndGo to step 11
11

Perform PF Motor and Sub PF Motor measurement

Does the product recover from the failure?

PF Motor Measurement & Auto Adjustment

Sub PF Motor Measurement & Auto Adjustment

EndGo to step 12
12

Replace the spindle

Does the product recover from the failure?

---EndGo to step 13
13

Repair by correct adjustment procedures.

Does the product recover from the failure?

Print Head

EndEscalate to person in charge