The steps are as follows:

1. You can try typing with white paper first, and then print the invoice after debugging. When debugging, click Print, and left (right) adjustment and up (down) adjustment will appear. Fill in the blank and try to print.

2. Generally, the adjustment is only 2mm. Print a ticket with white paper, put a blank invoice on the back, look at the light, and then print it and adjust the distance from left to right until all the contents are in the invoice.