Hi all. Was using 4.2.1 and all good. Upgraded to latest version 4.4.x and when perf

Data Sent To Printer - hang about node-thermal-printer HOT 7 CLOSED

ggb88 commented on May 27, 2024 3

Data Sent To Printer - hang

from node-thermal-printer.

Comments (7)

vraristizabal commented on May 27, 2024 2

I think the issue is in the Network interface, it may be missing to resolve the promise?

networkConnection.write(buffer, null, () => {
            console.log(`Data sent to printer: ${name}`, buffer);
            if (!options.waitForResponse) {
              networkConnection.destroy();
              resolve();
            }
          });

from node-thermal-printer.

pierrepaz commented on May 27, 2024

Same here, with Epson TM-T20X Ethernet, just if using promise, for sure.

from node-thermal-printer.

ggb88 commented on May 27, 2024

We are using epson TM88-VI - ethernet

from node-thermal-printer.

thomaslc08 commented on May 27, 2024

Same with TM 30 II

from node-thermal-printer.

Klemen1337 commented on May 27, 2024

The code bellow works fine for me. Please provice your code examples.

const { ThermalPrinter, PrinterTypes, CharacterSet, BreakLine } = require('node-thermal-printer')

async function example() {
  const printer = new ThermalPrinter({
    type: PrinterTypes.EPSON,
    interface: "tcp://192.168.1.87:9100",
    options: {
      timeout: 1000,
    },
    width: 48,
    characterSet: CharacterSet.SLOVENIA,
    breakLine: BreakLine.WORD,
    removeSpecialCharacters: false,
    lineCharacter: '-',
  });

  printer.println('Hello World!');
  printer.cut();

  try {
    await printer.execute();
    console.log('Print success.');
  } catch (error) {
    console.error('Print error:', error);
  }
}

example();