printease

"PrintEase: A powerful, user-friendly tool for easy control of your printer. Tailored for ease of use and efficient handling of all your printing needs, PrintEase provides seamless integration between your computer and printer. Whether it's adjusting printer settings, or troubleshooting common problems, PrintEase has you covered.

document

document

install

npm install printease

usage

It is relatively simple to use, for example, we can use the following statement to print a piece of content

print text

import printease from 'printease'
let tspl = new printease.tspl.TsplLib()
tspl.init()
tspl.setSize(60, 40)
tspl.setGap(0, 0)
tspl.setCls()
tspl.setText(50,50,'3',0,1,1,'Hello, Printease!')
tspl.setPrint(1)
// Send the contents of the buffer buffer to the printer, and the printer will print a piece of content
console.log(tspl.getBuffer())

You can see that we have used tspl.getBuffer() to get a piece of buffer data, you need to connect to the printer, and then send the buffer content to the printer, and the printer will perform a printing process.

print barcode

import printease from 'printease'
let tspl = new printease.tspl.TsplLib()
tspl.init()
tspl.setSize(60, 40)
tspl.setGap(0, 0)
tspl.setCls()
tspl.setBarCode(10, 10, '39', 100, 1, 0, 2, 4, '123456789')
tspl.setPrint(1)
console.log(tspl.getBuffer())

Similarly, you should send the content obtained by tspl.getBuffer() to the printer, otherwise it is just a console print

print QR code

import printease from 'printease'
let tspl = new printease.tspl.TsplLib()
tspl.init()
tspl.setSize(60, 40)
tspl.setGap(0, 0)
tspl.setCls()
tspl.setQRCode(10, 10, 'L', 5, 'A', 0, '123456789')
tspl.setPrint(1)
console.log(tspl.getBuffer())

print image

import printease from 'printease'
let imageData = [0, 0, 0, 0, 0, 0, 7, 255, 3, 255, 17, 255, 24, 255, 28, 127, 30, 63, 31, 31, 31, 143, 31, 199, 31, 227, 31, 231, 31, 255, 31, 255]
let tspl = new printease.tspl.TsplLib()
tspl.init()
tspl.setSize(60, 40)
tspl.setGap(0, 0)
tspl.setCls()
tspl.setBitmap(200, 200, 16, 16, 0, imageData)
tspl.setPrint(1)
console.log(tspl.getBuffer())

If you don't want to organize the image data yourself, you can use imagePixelInformation for processing, like this:

import printease from 'printease'
import img from './test.png'
let ctx = new printease.imagePixelInformation.JavaScriptImagePixelInformation(100);
ctx.getImageData(img,200,300,(res)=>{
    let tspl = new printease.tspl.TsplLib()
    tspl.init()
    tspl.setSize(60, 40)
    tspl.setGap(0, 0)
    tspl.setCls()
    tspl.setBitmap(10, 10, res.width, res.height, 0, res.data)
    tspl.setPrint(1)
    console.log(tspl.getBuffer())
})

If you use uniapp, please use the uniGetImageData method of UniappImagePixelInformation. eg: ctx.uniGetImageData('myCanvas','./test.png',200,300,(res)=>{})

let ctx = new printease.imagePixelInformation.UniappImagePixelInformation(100);
ctx.uniGetImageData('myCanvas',img,200,300,()=>{
    // ...
})

set the charset

import printease from 'printease'
let tspl = new printease.tspl.TsplLib()
tspl.init()
tspl.setEncoding('GB18030')
tspl.setSize(60, 40)
tspl.setGap(3, 0)
tspl.setCls()
tspl.setText(10, 10, 'TSS24.BF2', 0, 1, 1, '世界你好')
tspl.setPrint(1)
console.log(tspl.getBuffer())

License

MIT licensed