iPF8400S Basic Guide
When printing on thin roll paper, the printed surface becomes scratched
The roll paper has sagged during printing, scratching the
surface of the paper and causing wrinkle creases in the
Set Roll Tension to High in the Control Panel menu.
(See "Menu Settings.")➔User's Guide
If you change the Roll Tension setting, We recommend
that you perform Adj. Quality.
(See "Automatic Banding Adjustment.")➔P.100