The dot matrix printer is the earliest printer. At present, there are a variety of dot matrix printers such as 9-pin, 24-pin, 72-pin, and 144-pin. Its characteristics are: simple structure, mature technology, good performance and price ratio, low cost, making it for bank passbook printing, financial invoice printing, continuous recording of scientific data, bar code printing, fast skip printing and multiple copy production.
2, inkjet printer
An inkjet printer forms text or images by ejecting ink droplets onto a print medium. The image to the right shows an inkjet printer. Early inkjet printers and current large-format inkjet printers used continuous inkjet technology, and the current popular inkjet printers generally use random inkjet technology. These two inkjet technologies are very different in principle. Inkjet printers can be roughly divided into A4 inkjet printers, A3 inkjet printers, and A2 inkjet printers if they are separated from the printing surface. If they are used, they can be divided into ordinary inkjet printers and digital photo printers. Mobile inkjet printer.
3, laser printer
The laser printer is a non-impact output device that combines laser scanning technology and electronic imaging technology. The right picture shows a laser printer. The models may be different, but the working principle is basically the same, and all processes need to be charged, exposed, developed, transferred, erased, cleaned and fixed.
