OPOS Setup

OPOS is an industry standard of communication between a POS application, and POS Hardware (In this case printers) .

OPOS serves as a generic link between software and hardware from multiple vendors. It handles the decoding and interpreting of the information it receives from the software, and passes that information to the Printer. It also passes information back to the software so that it knows the status of each printer (Out of paper, turned off, errors etc.)

Logical Device Name

Each printer attached to the system is assigned a Logical Device Name (LDN). This "Name" is then used for all communication with the printer. Win-EZ Printing is set to use 10 of these "Names". Each name starts with a capitol "P" (for Printer) followed by the Printer Number 1-20, so that printer LDN's are P1, P2, P3, and so on. This name will correspond to the Print Job names within Win-EZ POS.