Printing

The HMP can interact with printers via Ethernet or RS232. Printers connected via USB are not supported as they would require installing a driver.

Printers connected via the serial port to the player can be used for simple receipt or ticket printing, but not for complex graphical printing. You can use JavaScript COM API writeCOMPort function to send characters to the serial printer.

Most printers these days are connected to a local network and support the Internet Printing Protocol (IPP), which is based on the Hypertext Transfer Protocol (HTTP), thus you could use Ajax calls to submit print jobs to that printer. For instance, you can print a file from a network resource (including from an HMP) specified by its URI. Moreover, that URI could point to a web page (php script) that receives parameters in the link and generates the document / page that needs to be printed.