Horizontal black streaks might occur at the position 270 mm from the leading edge of the paper due to the shock when the paper is inserted being transmitted to the paper transfer part.
This may occur if:
When printing on a paper with length longer than 270 mm
Thick paper is used
Printing a halftone image
To adjust the following settings, pre-register the type of paper in use as a custom paper. For details about registering custom papers, see "Registering a Custom Paper", Preparation.