These are single sheet page printers that print directly on the form:
Microline Okidata 420
MIcroline Okidata 590
Microline Okidata 321 Turbo
This is a label printer that prints the information on self-adhesive labels:
Dymo Labelwriter 400. One other advantage of the Dymo Labelwriter printer is that is a USB printer and does not require a serial or printer port connection to your computer.