Struct Printer 

pub struct Printer { /* private fields */ }

The printer object represents the thermal printer.

Implementations

impl Printer

pub fn new(vendor_id: u16, product_id: u16) -> Result<Option<Printer>, Error>

Creates the printer with the given VID/PID

use escpos_rw::{Error, Printer};
let Some(printer) = Printer::new(0x04b8, 0x0202)? else {
    return Err(escpos_rw::Error::PrinterError(
        "No printer found !".to_string(),
    ));
};

pub fn write_raw<A: AsRef<[u8]>>(&self, bytes: A) -> Result<(), Error>

Sends bytes to the printer

// Open the cash drawer
printer.write_raw([0x1B, 0x70, 0x00, 0x7E, 0x7E])?;

pub fn read_raw(&self) -> Result<[u8; 128], Error>

Reads bytes from the printer

// Reads data from printer output buffer
printer.read_raw()?;