Epson TM-L90 Technical Reference Manual page 26

When you install the printer horizontally, attach the control panel label as shown in the
illustration below.
Control panel label
Note:
To hang the printer on the wall, see the Wall Hanging Bracket Set Installation Manual provided with the
WH-10 for instructions.
When you use TM-L90 horizontally, peel off the backing sheet of the paper exit guide and attach
it as shown below to prevent cut paper from falling inside the printer after paper is cut by the
autocutter.
CAUTION:
When using the paper exit guide, do not use roll paper with a core that is smaller than
the specification (inside diameter: 25.4 mm, outside diameter: 31.4 mm). Using a smaller
one may cause a paper jam at the attached paper exit guide.
paper exit guide
26 Setup