Crate escpos 

escpos - A ESCPOS implementation in Rust

This crate implements a subset of Epson’s ESC/POS protocol for thermal receipt printers. It allows you to generate and print documents with basic text formatting, cutting, barcodes, QR codes and raster images on a compatible printer.

Examples

The examples folder contains various examples of how to use escpos. The docs (will) also provide lots of code snippets and examples. The list of all the examples can be found here.

Simple text formatting

use escpos::printer::Printer;
use escpos::printer_options::PrinterOptions;
use escpos::utils::*;
use escpos::{driver::*, errors::Result};

fn main() -> Result<()> {
    // env_logger::init();

    // let driver = NetworkDriver::open("192.168.1.248", 9100, None)?;
    let driver = ConsoleDriver::open(true);
    Printer::new(driver, Protocol::default(), Some(PrinterOptions::default()))
        .debug_mode(Some(DebugMode::Dec))
        .init()?
        .smoothing(true)?
        .bold(true)?
        .underline(UnderlineMode::Single)?
        .writeln("Bold underline")?
        .justify(JustifyMode::CENTER)?
        .reverse(true)?
        .bold(false)?
        .writeln("Hello world - Reverse")?
        .feed()?
        .justify(JustifyMode::RIGHT)?
        .reverse(false)?
        .underline(UnderlineMode::None)?
        .size(2, 3)?
        .writeln("Hello world - Normal")?
        .print_cut()?;  // print() or print_cut() is mandatory to send the data to the printer

    Ok(())
}

EAN13 (with barcode feature enabled)

use escpos::printer::Printer;
use escpos::utils::*;
use escpos::{driver::*, errors::Result};

fn main() -> Result<()> {
    // env_logger::init();

    // let driver = NetworkDriver::open("192.168.1.248", 9100, None)?;
    let driver = ConsoleDriver::open(true);
    Printer::new(driver, Protocol::default(), None)
        .debug_mode(Some(DebugMode::Hex))
        .init()?
        .ean13_option(
            "1234567890265",
            BarcodeOption::new(
                BarcodeWidth::M,
                BarcodeHeight::S,
                BarcodeFont::A,
                BarcodePosition::Below,
            )
        )?
        .feed()?
        .print()?;  // print() or print_cut() is mandatory to send the data to the printer

    Ok(())
}

QR Code (with codes_2d feature enabled)

use escpos::printer::Printer;
use escpos::utils::*;
use escpos::{driver::*, errors::Result};

fn main() -> Result<()> {
    // env_logger::init();

    // let driver = NetworkDriver::open("192.168.1.248", 9100, None)?;
    let driver = ConsoleDriver::open(true);
    Printer::new(driver, Protocol::default(), None)
        .debug_mode(Some(DebugMode::Hex))
        .init()?
        .qrcode_option(
            "https://www.google.com",
            QRCodeOption::new(QRCodeModel::Model1, 6, QRCodeCorrectionLevel::M),
        )?
        .feed()?
        .print_cut()?;  // print() or print_cut() is mandatory to send the data to the printer

    Ok(())
}

Bit image (with graphics feature enabled)

use escpos::printer::Printer;
use escpos::utils::*;
use escpos::{driver::*, errors::Result};

fn main() -> Result<()> {
    // env_logger::init();

    // let driver = NetworkDriver::open("192.168.1.248", 9100, None)?;
    let driver = ConsoleDriver::open(true);
    let mut printer = Printer::new(driver, Protocol::default(), None);
    printer.debug_mode(Some(DebugMode::Hex))
        .init()?
        .bit_image_option(
            "./resources/images/rust-logo-small.png",
            BitImageOption::new(Some(128), None, BitImageSize::Normal)?,
        )?
        .feed()?
        .print_cut()?;  // print() or print_cut() is mandatory to send the data to the printer

    Ok(())
}

Check printer status

use escpos::printer::Printer;
use escpos::utils::*;
use escpos::{driver::*, errors::Result};

fn main() -> Result<()> {
    // env_logger::init();

    // let driver = NetworkDriver::open("192.168.1.248", 9100, None)?;
    let driver = ConsoleDriver::open(true);
    Printer::new(driver.clone(), Protocol::default(), None)
        .debug_mode(Some(DebugMode::Dec))
        .real_time_status(RealTimeStatusRequest::Printer)?
        .real_time_status(RealTimeStatusRequest::RollPaperSensor)?
        .send_status()?;

    let mut buf = [0; 1];
    driver.read(&mut buf)?;

    let status = RealTimeStatusResponse::parse(RealTimeStatusRequest::Printer, buf[0])?;
    println!(
        "Printer online: {}",
        status.get(&RealTimeStatusResponse::Online).unwrap_or(&false)
    );

    Ok(())
}

Features list

Name	Description	Default
barcodes	Print barcodes (UPC-A, UPC-E, EAN8, EAN13, CODE39, ITF or CODABAR)	✅
codes_2d	Print 2D codes (QR Code, PDF417, GS1 DataBar, DataMatrix, Aztec, etc.)	✅
graphics	Print raster images	❌
usb	Enable USB feature	❌
native_usb	Enable native USB feature	❌
hidapi	Enable HidApi feature	❌
serial_port	Enable Serial port feature	❌
ui	Enable ui feature (UI components)	❌
full	Enable all features	❌

External resources

• Epson documentation

Modules

driver

Drivers used to send data to the printer (Network or USB) Drivers used to send data to the printer (Network or USB)

errors

Error module Custom error

printer

Print document Printer

printer_options

Printer options Printer options

ui

UI components like lines, tables, etc.

utils

Utils module contains protocol and all needed constants and enums