To configure printing in Mozilla Firefox, open the settings menu on the right, select “Print “, in the preview window that appears, click the “ Options” button, in the next window that appears, put the tick “Compress to page width, and in the “Fields and headers and footers” tab, specify the required fields, in my case it was reduced to 1, because the checks were printed on a narrow tape of the thermal printer and standard Only a couple of characters fit in one line.
The second option is to type and open in the address bar:
about:config
Click “I take the risk!”
In the field “Search” type:
print_printer
Right-click on the desired printer and select “Reset.”
If this does not help, check the print settings in the printer properties, in the operating system control panel, and try printing in other browsers.