py-brotherlabel is a Python package to control Brother P-Touch label printers in raster printing mode. Intended to use on a Raspberry Pi board.

• PT-P900
• PT-P900W
• PT-P950NW

1. Connect the printer to the Raspberry Pi via USB cable and turn on the pritner.

2. Run command lsusb. The device ID will be listed along with the company name Brother.

Bus 001 Device 004: ID 04f9:2086 Brother Industries, Ltd

3. See example_usb.py. Pass the device ID to USBBackend constructor.

When pyusb shows the error usb.core.USBError: [Errno 13] Access denied (insufficient permissions), see https://www.raspberrypi.org/forums/viewtopic.php?t=186839

Example rule /etc/udev/rules.d/50-usb-perms.rules for PT-P900/P900W/P950NW:

SUBSYSTEM=="usb", ATTRS{idVendor}=="04f9", ATTRS{idProduct}=="2083", GROUP="plugdev", MODE="0666"
SUBSYSTEM=="usb", ATTRS{idVendor}=="04f9", ATTRS{idProduct}=="2085", GROUP="plugdev", MODE="0666"
SUBSYSTEM=="usb", ATTRS{idVendor}=="04f9", ATTRS{idProduct}=="2086", GROUP="plugdev", MODE="0666"

sudo udevadm control --reload; sudo udevadm trigger

• Software Developer's Manual Raster Command Reference PT-P900/P900W/P950NW
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