Color or print density unevenness within a page or across pages.
Suspected cause
Ink in ink cartridge is not agitated enough
Deterioration of ink quality
Uneven density when switching heads used for printing
Density unevenness in the difference between heads 1 and 2 caused by high-precision ID adjustment failure of the Print Head
PG adjustment failure
Flange clogged with paper dust
Flange failure (flange could not withstand the slack take-up operation, resulting in folding, etc.)
Parts/Components to be checked
Ink Cartridges
Print Head
Spindle
Troubleshooting
| Step | Confirmation points and methods | Page | YES | NO |
|---|---|---|---|---|
| 1 | Check the expiration date of the Ink Cartridge
Does the product recover from the failure? | --- | End | Go to step 2 |
| 2 | Agitation of the Ink Cartridge.
Does the product recover from the failure? | --- | End | Go to step 3 |
| 3 | Perform head cleaning (CL3) Does the product recover from the failure? | Cleaning | End | Go to step 4 |
| 4 | Perform High-Precision ID and Raster Calibration Does the product recover from the failure? | Colorimetric & Raster Calibration | End | Go to step 5 |
| 5 | From the printer panel, set "Leading Edge Margin" to 45 mm. Does the product recover from the failure? | --- | End | Go to step 6 |
| 6 | In Printer Driver Settings, [Advanced Quality Settings] of printer driver, select and set [Optimize Leading Edge Quality] or [Optimize All Edge Image Quality] for [Optimize Edge Quality]. *[Optimize Leading Edge Quality]: All are in 2 head mode, so this prints with no difference from normal print speed, but the leading edge margin is larger than normal. *[Optimize All Edge Image Quality]: All are in 1 head mode, so the printing speed is lower than normal. Does the product recover from the failure? | --- | End | Go to step 7 |
| 7 | Reinstall the roll paper onto the spindle.
Does the product recover from the failure? | --- | End | Go to step 8 |
| 8 | Perform PG Check & Adjustment Does the product recover from the failure? | PG Check & Adjustment | End | Go to step 9 |
| 9 | Discharge and refill with ink Does the product recover from the failure? | End | Escalate to person in charge |