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Printer class

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SEGGER emUSB-Host

Overview

The USB class protocol for printers was defined for the handling of output devices, like printers and plotters. A printer connected to emUSB-Host is automatically configured. The implementation of the printer class forwards the print data to a connected printer. The actual print data has to be generated using printer specific codes.

printer
The emUSB-Host Printer class allows the communication with any printer that supports the USB printer class protocol specified by the USB Implementers Forum.

Key features

  • Handling of multiple printers at the same time
  • Notifications about printer connection status
  • Ability to query the printer operating status and its device ID
  • Small footprint

Requirements

Components required to use emUSB-Host Printer:

  • emUSB-Host Printer (Included in emUSB-Host PRO package)
  • emUSB-Host core (Included in emUSB-Host PRO package)
  • emUSB-Host target driver (One driver is included in emUSB-Host PRO package)
  • Real-time operating system (embOS or other)

Resource usage

Application Samples emUSB-Host Printer

black printer with paper tray

Printer

Sample Application Included

An example application which uses the API is provided with any shipment or eval software including emUSB-Host. This example displays information about the printer and its connection status in the I/O terminal of the debugger. In addition the text "Hello World" is printed out at the top of the current page when the first printer connects.