If the page size is specified in either the front-panel or
the application that the image was made in, then the
page and the image are rotated, as shown below.

However if the page size is unspecified, the page is not
rotated, only the image.

To set the rotation in the front-panel select
Page Format/Rotate.

Possibility of Clipped Images with Rotated Images

With either roll or sheet paper, if you rotate an image to
landscape whose original orientation was portrait, the
paper may not be wide enough for the image, and it
may be clipped. For example, rotating a portrait D/A1-
size image on D/A1-size paper by 90 degrees will
probably result in a clipped image. If you are using the
Jet Browser, the preview screen will confirm this with a
warning triangle.