escpos-print-extended

ESC/POS library

this project is based on this project https://github.com/haavardlian/escpos.

and was modified to suit specific needs, where applicable use the original project.

Additional Features from base code:

• Read back from printer
• Fixed issue where closing on network printer would throw exception.

Features:

• Adapters for Network, Serial, and Console (for debugging)
• Usual text stuff (Bold, Underline, Justification etc.)
• PNG images
• Bar code printing (Regular, QR, PDF417)

Usage example:

import Printer from 'escpos-print/Printer'
import { Font, Justification, TextMode } from 'escpos-print/Commands'
import { Network } from 'escpos-print/Adapters'
 
const adapter = new Network("192.168.0.102", 9100)
const printer = await new Printer(adapter).open()
                           
printer.setFont(Font.A)
       .setJustification(Justification.Center)
       .setTextMode(TextMode.DualWidthAndHeight)
       .writeLine("This is some large centered text")
       .setTextMode(TextMode.Normal)
       .setJustification(Justification.Left)
       .writeLine("Some normal text")
       .feed(4)
       .close()
       .then(() => console.log("Done printing..."))