java swing print

print.kt

try {
        val services = PrintServiceLookup.lookupPrintServices(null, null)
        val printer = services.find {
            it.name.lowercase().contains("star")
        } ?: throw Exception("No printer")

        val outputStream = ByteArrayOutputStream()
        outputStream.write(byteArrayOf(27, 64)) // Initialize printer (ESC @)
        outputStream.write("=== STRUK PEMBELIAN ===\n".toByteArray(charset("UTF-8")))
        outputStream.write("Item 1   x2  Rp10.000\n".toByteArray(charset("UTF-8")))
        outputStream.write("Item 2   x1  Rp7.500\n".toByteArray(charset("UTF-8")))
        outputStream.write("----------------------\n".toByteArray(charset("UTF-8")))
        outputStream.write("TOTAL:      Rp27.500\n".toByteArray(charset("UTF-8")))
        outputStream.write("\nTerima kasih\n\n\n".toByteArray(charset("UTF-8")))
        outputStream.write(byteArrayOf(29, 86, 1)) // Cut paper

        val data = outputStream.toByteArray()

        val job: DocPrintJob = printer.createPrintJob()
        val flavor: DocFlavor = DocFlavor.BYTE_ARRAY.AUTOSENSE
        val doc: Doc = SimpleDoc(data, flavor, null)
        job.print(doc, null)
    } catch (t: Throwable) {
        System.out.print(t.message)
    }