[SOLVED] Epson js SDK unable to use multiple printers

Intro
We're developing this javascript based web application that is supposed to print receipts using the epson javascript sdk.

Right now we've got this poc where multiple printers can be added to the app and where receipts can be printed per individual printer.

The problem is that the receipt will ONLY be printer from the last added printer.

Further investigating tells us that the sdk just uses the last added (connected) printer. This can be seen at the following images.

In the first image there are 2 printers setup. Notice the different ip addresses.
In the second image we log what EpsonPrinter instance is being used while printing. Notice the ip address is clearly the first printer.
In the third image we trace the network. Notice the ip address that is actually used (ignore the error).

We created our own EpsonPrinter class that can be found here or here below.

EpsonPrinter

export default class EpsonPrinter {
  name = null
  ipAddress = null
  port = null
  deviceId = null
  crypto = false
  buffer = false
  eposdev = null
  printer = null
  intervalID = null
  restry = 0

  constructor (props) {
    const {
      name = 'Epson printer',
      ipAddress,
      port = 8008,
      deviceId = 'local_printer',
      crypto = false,
      buffer = false
    } = props
    this.name = name
    this.ipAddress = ipAddress
    this.port = port
    this.deviceId = deviceId
    this.crypto = crypto
    this.buffer = buffer

    this.eposdev = new window.epson.ePOSDevice()
    this.eposdev.onreconnecting = this.onReconnecting
    this.eposdev.onreconnect = this.onReconnect
    this.eposdev.ondisconnect = this.onDisconnect

    this.connect()
  }

  onReconnecting = () => {
    this.consoleLog('reconnecting')
  }
  onReconnect = () => {
    this.consoleLog('reconnect')
  }

  onDisconnect = () => {
    this.consoleLog('disconnect')

    if (this.intervalID === null ){
      this.intervalID = setInterval(() => this.reconnect(), 5000)
    }
  }

  connect = () => {
    this.consoleLog('connect')

    this.eposdev.ondisconnect = null
    this.eposdev.disconnect()

    this.eposdev.connect(this.ipAddress, this.port, this.connectCallback)
  }

  reconnect = () => {
    this.consoleLog('(Re)connect')

    this.eposdev.connect(this.ipAddress, this.port, this.connectCallback)
  }

  connectCallback = (data) => {
    clearInterval(this.intervalID)
    this.intervalID = null
    this.eposdev.ondisconnect = this.onDisconnect

    if (data === 'OK' || data === 'SSL_CONNECT_OK') {
      this.createDevice()
    } else {
      setTimeout(() => this.reconnect(), 5000)
    }
  }

  createDevice = () => {
    console.log('create device, try: ' + this.restry)

    const options = {
      crypto: this.crypto,
      buffer: this.buffer
    }

    this.eposdev.createDevice(this.deviceId, this.eposdev.DEVICE_TYPE_PRINTER, options, this.createDeviceCallback)
  }

  createDeviceCallback = (deviceObj, code) => {
    this.restry++

    if (code === 'OK') {
      this.printer = deviceObj
      this.printer.onreceive = this.onReceive
    } else if (code === 'DEVICE_IN_USE') {
      if (this.restry < 5) {
        setTimeout(() => this.createDevice(), 3000)
      }
    }
  }

  onReceive = (response) => {
    this.consoleLog('on receive: ', response)
    let message = `Print ${this.name} ${response.success ? 'success' : 'failute'}\n`
    message += `Code: ${response.code}\n`
    message += `Status: \n`

    if (response.status === this.printer.ASB_NO_RESPONSE) { message += ' No printer response\n' }
    if (response.status === this.printer.ASB_PRINT_SUCCESS) { message += ' Print complete\n' }
    if (response.status === this.printer.ASB_DRAWER_KICK) { message += ' Status of the drawer kick number 3 connector pin = "H"\n' }
    if (response.status === this.printer.ASB_OFF_LINE)  {   message += ' Offline status\n' }
    if (response.status === this.printer.ASB_COVER_OPEN)    {   message += ' Cover is open\n' }
    if (response.status === this.printer.ASB_PAPER_FEED) {  message += ' Paper feed switch is feeding paper\n' }
    if (response.status === this.printer.ASB_WAIT_ON_LINE) {    message += '  Waiting for online recovery\n' }
    if (response.status === this.printer.ASB_PANEL_SWITCH) {    message += ' Panel switch is ON\n' }
    if (response.status === this.printer.ASB_MECHANICAL_ERR) {  message += ' Mechanical error generated\n' }
    if (response.status === this.printer.ASB_AUTOCUTTER_ERR) {  message += ' Auto cutter error generated\n' }
    if (response.status === this.printer.ASB_UNRECOVER_ERR) {   message += ' Unrecoverable error generated\n' }
    if (response.status === this.printer.ASB_AUTORECOVER_ERR) { message += ' Auto recovery error generated\n' }
    if (response.status === this.printer.ASB_RECEIPT_NEAR_END) {    message += ' No paper in the roll paper near end detector\n' }
    if (response.status === this.printer.ASB_RECEIPT_END) { message += ' No paper in the roll paper end detector\n' }
    if (response.status === this.printer.ASB_SPOOLER_IS_STOPPED) {  message += ' Stop the spooler\n' }

    if (!response.success) {
      alert(message)
      // TODO: error message?
    } else {
      // TODO: success -> remove from queue
    }
  }

  printReceipt = () => {
    this.consoleLog(`Print receipt, `, this)
    try {
      if (!this.printer) {
        throw `No printer created for ${this.name}`
      }

      this.printer.addPulse(this.printer.DRAWER_1, this.printer.PULSE_100)

      this.printer.addText(`Printed from: ${this.name}\n`)

      this.printer.send()
    } catch (err) {
      let message = `Print ${this.name} failure\n`
      message += `Error: ${err}`

      alert(message)
    }
  }

  consoleLog = (...rest) => {
    console.log(`${this.name}: `, ...rest)
  }
}

Poc
The full working poc can be found here.

Epson javascript sdk
2.9.0

Does anyone have any experience with the epson sdk? It it supposed to be able to support multiple connections on the same time? Please let use know.