4.1.0 • Published 10 months ago
escpos-buffer v4.1.0
ESC/POS Printer Library
Library to generate buffer for thermal printers.
Install
Run command bellow on your project folder
yarn add escpos-buffer
or
npm install escpos-buffer
Setup
Node
const { Printer, InMemory } = require('escpos-buffer');
const connection = new InMemory();
const printer = await Printer.CONNECT('MP-4200 TH', connection);
Browser
Use the WebUSB protocol in Chrome to connect directly to the printer.
import { Printer, Model, WebUSB } from 'escpos-buffer';
const device = await navigator.usb.requestDevice({
filters: [
{
vendorId: VENDOR_ID,
},
],
});
const connection = new WebUSB(device);
const printer = await Printer.CONNECT('TM-T20', connection);
Usage
// Following setup above...
await printer.setColumns(56)
await printer.write('Simple Text *** ')
await printer.writeln('Bold Text -> complete line text.[]123456', Style.Bold)
await printer.writeln('Double height', Style.DoubleHeight | Style.Bold, Align.Center)
await printer.writeln('Áçênts R$ 5,00', Style.DoubleWidth | Style.DoubleWidth, Align.Center)
await printer.withStyle({
width: 4,
height: 6,
bold: true,
italic: true,
underline: true,
align: Align.Center,
}, async () => {
await printer.writeln('You can apply multiple styles at once using withStyle()')
await printer.writeln('Font sizes 1-8 are available')
})
await printer.writeln('Default style is restored afterwards')
await printer.feed(6)
await printer.buzzer()
await printer.cutter()
await printer.drawer(Drawer.First)
// For buffered connection (output to stdout)
process.stdout.write(connection.buffer())
// to print, run command bellow on terminal
// For Unix
//> node examples/basic.js | lp -d MyCupsPrinterName
// For Windows
//> node examples\basic.js > output.bin
//> print /d:\\%COMPUTERNAME%\PRINTER_NAME output.bin
Available scripts
clean
- remove coverage data, Jest cache and transpiled files,build
- transpile TypeScript to ES6,build:watch
- interactive watch mode to automatically transpile source files,lint
- lint source files and tests,style:fix
- fix prettier style problems,style:check
- check for prettier style,test
- run tests,test:watch
- interactive watch mode to automatically re-run teststest:debug
- run tests debugging
License
Licensed under the MIT. See the LICENSE file for details.
4.0.5
11 months ago
4.1.0
10 months ago
4.0.4
12 months ago
4.0.3
12 months ago
4.0.1
1 year ago
4.0.0
1 year ago
4.0.2
1 year ago
3.1.0
1 year ago
3.0.1
1 year ago
3.0.0
1 year ago
2.0.2
2 years ago
1.6.7
1 year ago
2.0.1
2 years ago
2.0.0
2 years ago
1.6.6
2 years ago
1.6.5
3 years ago
1.6.4
3 years ago
1.6.3
3 years ago
1.6.2
3 years ago
1.6.1
3 years ago
1.6.0
4 years ago
1.5.0
4 years ago
1.4.0
4 years ago
1.3.1
4 years ago
1.3.0
4 years ago
1.1.0
4 years ago
1.0.0
4 years ago