sam-lex
commented
2 years ago this happens on windows 10
- on linux - ubuntu it's working fine.
if you're in a rush like me, a hacky-temporary workaround would be to go into the node_modules/escpos-usb/index.js and comment out usb.on ... part.
Then you'll run into another problem, saying usb.removeAllListeners is not a function. I commented that part out as well. Then it works ok-ish.
I had already made an app with electron + express and stuff on Linux about a month ago. And just about 3 days ago I tested on a windows machine for the first time, and got these same errors... I still got another problem to work with, which is the image I generate for it to print seems to "not fit" all of a sudden..
It seems to be somewhat related with this.. idk https://github.com/MadLittleMods/node-usb-detection/issues/77
Anyways.. good luck
romaia
fillahfirdausyah
peteruithoven
flapili
AppPilots
YovanggaAnandhika
Siyavash-Adib
ferminc
Joshjoyb
Hello, i'v tried and use example code, and igot error like this
TypeError: usb.on is not a function.
My code : const escpos = require("escpos"); escpos.USB = require('escpos-usb');
const device = new escpos.USB(1046, 20497); // const device = new escpos.RawBT(); // const device = new escpos.Network('localhost'); // const device = new escpos.Serial('/dev/usb/lp0'); const printer = new escpos.Printer(device);
console.log(device)
device.open(function (err) { printer .font("a") .align("ct") .style("bu") .size(1, 1) .text("The quick brown fox jumps over the lazy dog") .text("敏捷的棕色狐狸跳过懒狗") .barcode("1234567", "EAN8") .qrimage("https://github.com/song940/node-escpos", function (err) { this.cut(); this.close(); }); });