Printer is one of the output devices of computer, which is used to print the computer processing results on related media. There are three indicators to measure the quality of a printer: printing resolution, printing speed and noise. ?
There are many types of printers, which can be divided into impact printers and non-impact printers according to whether the printing elements impact the paper. According to the structure of printed characters, there are full-width printers and dot matrix printers. There are serial printers and line printers according to the way a line of words is formed on paper. According to the technology adopted, it can be divided into cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic and LED printers.
According to the working mode, it is divided into needle printer, inkjet printer and laser printer.
The stylus printer prints character graphics through the physical contact between the printer and the paper, and the latter two print character graphics by spraying toner.
According to the purpose, it is divided into office and business general printers.
In this application field, the stylus printer has always occupied a dominant position. Because the stylus printer has the characteristics of moderate resolution and printing speed, cheap consumables, high-speed skipping, multiple copies printing, wide printing and convenient maintenance, it is the first choice for printing reports and invoices in office and transaction processing.
Commercial printer: A commercial printer refers to a printer used for commercial printing. Because this field requires high quality of printed home printers, and sometimes it has to deal with illustrated documents, high-resolution laser printers are generally chosen.
Special printer: Special printers generally refer to various printers used in special systems, such as passbook printers, flat bill printers, bar code printers, thermal printers, etc.
Bluetooth printer: Bluetooth printer is a small printer, which transmits data through Bluetooth and can print various receipts and barcodes anytime and anywhere. The difference with the traditional printer is that it can operate the sensor card, read the card number of the sensor card and the data of each sector, and write data to each sector.
Home printer: a home printer refers to a printer that enters the home with a home computer. According to the characteristics of home printers, low-grade color inkjet printers have gradually become mainstream products.
Portable printer: Portable printers are generally used for supporting notebook computers, with the characteristics of small size, light weight, battery-driven and easy to carry.
Network printer: Network printers are used in network systems to provide printing services for most people. Therefore, this printer is required to have the characteristics of fast printing speed, automatic switching between analog mode and network protocol, and convenient management by network administrators.
The universal printer is not limited by any material, and can take color photos and print on plane materials such as wood, glass, crystal, PVC, ABS, acrylic, metal, plastic, stone, leather, cloth and other textiles. Whether it is a simple color matching pattern, a full-color pattern or a pattern with too many colors, it can be printed at one time without plate making, printing and repeated color matching, and the application field is very wide.
References:
Baidu encyclopedia web page link