Chapter5 Troubleshooting Print Quality Problems 317 Status Cause Solution and Reference Vertical (Paper Width Direction) White Banding The printed paper was fed backward. • If printed paper is fed backward, the paper is stepped on by the paper pressure rollers and print quality deteriorates. Be sure to separate paper that has already been printed with the (cut) button. • Before the paper is fed backward, separate the printed paper with the (cut) button or set the [Settings For Paper Handling After Print] to other than [Do not cut (stop at cut position)] or [Do not cut (stop at specified position)].
The [Settings For Paper Handling After Print] can be set in the [Media Settings] of the printer driver. U "Media (Paper) Settings" on page 93 Horizontal (Printing Direction) White Banding The nozzles are clogging. Use the [Print Head Nozzle Check] function to check the nozzles for clogging. U "Test Print" on page 79 If the nozzles are clogging, run [Print Head Cleaning]. If the symptom persists after repeating [Print Head Cleaning] three or more times, run [Power Cleaning]. U "Print Head Cleaning" on page 309 If the auto nozzle check system is disabled, change it to enabled (default). U "Auto Nozzle Check System" on page 30 White or Black Banding The paper is not loaded correctly.
Reload the paper. U "Loading Paper" on page 66 The paper being used and the Media Coating Type setting differ. Check the paper being used and the Media Coating Type setting of the printer driver. U "Printer driver for Windows" on page 91 White banding or black banding can occur if the paper feeding setting is not appropriate for the paper used. Perform [Adjust Uneven Colors]. Click on [Adjust Uneven Colors] in PrinterSetting. U "Adjust Uneven Colors" on page 204 The banding reduction setting is not appropriate. Color banding (unevenness) may become less noticeable by correcting the overlap of print areas of adjacent print heads.
Change the [Banding Reduction] setting in the printer driver or PrinterSetting. U "Media (Paper) Settings" on page 93 U "Print results adjustment" on page 193