Client device using a markup language to control a periphery device via a point-of-sale printer

摘要

A device control system has a terminal 3 with an application 31, and a printer 5 that controls a device. The terminal 3 sends a request written in XML generated by the application 31. The printer 5 receives the XML request, the terminal 3 sends an XML response, and if the terminal 3 requested control of the device in the XML request, controls the device.

主权项

1. A point-of-sale printer for a point-of-sale (POS) system, the point-of-sale printer comprising:
a first connector configured to connect the point-of-sale printer to a device responsive to device-control commands, the device being external to the point-of-sale printer; a second connector configured to communicate with a terminal, to receive a markup language request from the terminal, and to send a markup language response to the terminal, the terminal being external to the point-of-sale printer; a controller configured to interpret the markup language request received from the terminal, and to control the device using appropriate device-control commands to execute the interpreted markup language request, the point-of-sale printer being further configured to encode any response from the device as a markup language response and to send the markup language response to the terminal; wherein the device-control commands are not a markup language.