label_printer

The library allows to print label using an ESC/POS thermal WiFi/Ethernet printer.

It can be used in Flutter or pure Dart projects. For Flutter projects, both Android and iOS are supported.

To scan for printers in your network, consider using ping_discover_network package. Note that most of the ESC/POS printers by default listen on port 9100.

TODO (PRs are welcomed!)

Print Image from assets or boundary Image with png format
I will update more feature later ...

How to Help

Test and report bugs
Share your ideas about what could be improved (code optimization, new features...)
PRs are welcomed!

Get current connected printer model info:

printer.info();

Get current command:

printer.commands;
// 'PRINT1,1,...'

Simple print Label:

final printer = LabelPrinter(
    printerType: PrinterType.label,
    printMode: PrintMode.overwrite,
    metric: Metric.mm,
    direction: Direction.up,
    dpi: 203,
    verticalGap: 2,
    horizontalGap: 2,
    labelWidth: 65,
    labelHeight: 35,
);

await printer.connect('192.168.0.1', 9100);

printer.image(image, 
    numOfSet: 1,
    numOfPrint: 1,
    xOffset: 0,
    yOffset: 0,
    alpha: 50,
);

Simple add text to current commands:

printer.addText(
    'Hello world',
    xOffset: 0
    yOffset: 0
    size: PrintTextSize.large,
    rotation: PrintRotation.none,
);

Simple raw commands:

// PRINT 1,1
// EOP
printer.raw([80, 82, 73, 78, 84, 32, 49, 44, 49, 13, 10, 69, 79, 80, 13, 10]);

// Or if you want to using LATIN instead
printer.rawText('PRINT 1,1\r\nEOP\r\n');