What Is a POS Printer?

Makes and Models

The types of point-of-sale printers include dot matrix, thermal and ink jet, some of which use receipt paper available at major office supply stores. Other POS printers don't rely on printer ink of any kind, but instead use thermal-sensitive paper to print the characters on the paper. A few of the primary makers of POS printers include Epson, Star, Ithaca, Citizen and Bixolon.
Function

POS systems can print more than receipts, including customer contracts, survey invitations and sales summaries. BarcodeDiscount.com lists three major categories--retail, restaurant and banking--that use POS hardware and software systems. Generally, the point-of-sale printer uses a designated cable to send an "open" signal to the cash drawer.
Accessories

The POS printer--usually part of a larger point-of-sale system--may come with a bar code scanner. Some models also have a check slip for reading and processing payments made by check. Other POS system features include age verifiers, checkout scales, and signature capture screens.

source: http://id.berita.yahoo.com/teknologi/