Epson LX-300+ Reference Manual page 25

Adjusting the tear-off position
If your paper's perforation is not aligned with the tear-off edge,
you can use the Micro Adjust mode to move the perforation to
the tear-off position. Follow these steps:
1. Make sure the Tear Off (Font) lights are flashing. You may
need to press the Tear Off (Font) button to advance the
paper to the tear-off position.
2. Open the printer cover.
3. Hold down the Pause button for about three seconds. The
printer beeps and the Pause light begins to flash as the
printer enters Micro Adjust mode.
4. Press the LF/FF D button to feed the paper backward, or
press the Load/Eject U button to feed the paper forward,
until the paper perforation is aligned with the tear-off edge
on the paper tension unit.
Note:
The printer has a minimum and a maximum tear-off position. If
you try to adjust the tear-off position beyond these limits, the
printer beeps and stops moving the paper.
Tear-off edge
Paper Handling
25