Star Micronics LC-1021 User Manual page 21

Loading fanfold paper 15
Install the paper guide so that it is standing up (at a 50-degree angle) as
shown on page 10. In this position, the paper guide keeps the printed paper
separate from the unprinted paper.
Then slide the right and left paper guides apart so they do not interfere with
the fanfold paper feeding.
Turn on the printer.
The printer will beep a number of times to indicate that paper is not loaded
properly. Also, the control panel's POWER indicator flashes whenever
paper is not loaded.
Press the SET/EJECT/PARK button to feed the paper to the starting
position.