A, the main body is different
1, ribbon: also known as bar code printer, is based on heat, carbon tape as the print medium to complete the print.
2, thermal: the data received by the printer is converted into a dot matrix of signals to control the heating of the thermal unit, the thermal paper on the thermal coating heated to develop.
3, laser printing: laser scanning technology and electrophotographic technology combined with printout equipment.
Second, the principle of different
1, ribbon:, the print head is composed of a thermistor, the process of printing is the thermistor heat will be transferred to the toner on the carbon tape on the process of paper.
2, thermal: the reason is that the print head is installed with a semiconductor heating element, the print head is heated and contact with the thermal printing paper can be printed after the desired pattern, the principle is similar to the thermal fax machine.
3, laser printing: binary data information from the computer, through the video controller into a video signal, and then by the video interface/control system to convert the video signal into a laser drive signal, and then by the laser scanning system produces a laser beam containing the character information, and finally by the electronic camera system to make the laser beam imaging and transfer to the paper.
Three, different uses
1, ribbon: machine printed content is generally corporate brand identity, serial number identification, packaging identification, bar code identification, envelope labels, clothing tags and so on.
2, thermal: has been widely used in POS terminal systems, banking systems, medical instruments and other fields.
3, laser printing: has the advantages of fast printing speed, high imaging quality; but the use of relatively high cost.
Baidu Encyclopedia - Thermal Printer
Baidu Encyclopedia - Laser Printer
Baidu Encyclopedia - Barcode Printer