Specifications

Data Processing and POSjet
®
1500 Programmer's Guide
Communications
Page 250 Rev N Nov-10
Port Protocols and Connection Specifics
Printer Flow Control and Print Buffers
The following figure illustrates the communication flow from host computer to printer and from printer to cash
drawer.
Cash Drawer
Host Computer
Printer to
Cash Drawer
Host to printer link
Keypad
Host to
Keypad
Typical POS System
Printer
Figure 31 Typical POS System
For the host to printer communication link, the POSjet
®
1500 Printer supports serial or parallel communications.
The serial and parallel ports both follow standards developed for the personal computer environment.