ymxk/escpos

EscPos Library for Java

EscPos Library for Java

A basic Java ESC/POS implementation for receipt printers.

• EscPosBuilder provides a fluent style api for preparing ESC/POS data.
• SerialFactory is a type-safe solution for obtaining SerialPort connections on any platform.

EscPosBuilder Usage

EscPosBuilder escPos = new EscPosBuilder();

byte[] data = escPos.initialize()
        .font(Font.EMPHASIZED)
        .align(Align.CENTER)
        .text("HELLO WORLD")
        .feed(5)
        .cut(Cut.PART)
        .getBytes();

SerialFactory Usage

SerialPort port = SerialFactory.jSerialPort("COM3", SerialConfig.CONFIG_9600_8N1());

port.openPort();
port.getOutputStream().write(data);
port.closePort();

EscPosBuilder Methods

initialize(); Printer initialization command (0x1B40)

reset(); Resets the buffer

close(); Closes the buffer

getBytes(); Returns the current buffer as a byte[]

raw(val); Print a raw int, byte or byte[] to the buffer

text(String text); Print text to the buffer (will not print until feed(int lines) is called)

feed(int lines); Prints the preceding text and feeds the number of lines

font(Font font); Toggle one of the following fonts:

• Font.REGULAR
• Font.DH
• Font.DW
• Font.DWDH
• Font.EMPHASIZED
• Font.DH_EMPHASIZED
• Font.DW_EMPHASIZED
• Font.DWDH_EMPHASIZED

align(Align align); Toggle text alignment:

• Align.LEFT
• Align.CENTER
• Align.RIGHT

cut(Cut cut, int lines); Feeds the number of lines and cuts the paper:

• Cut.FULL
• Cut.PART

kick(DrawerKick kick, int t1Pulse, int t2Pulse); Send Drawer Kick pulse to the following pin:

• DrawerKick.PIN2
• DrawerKick.PIN5