The working principle of thermal printer
The working principle of a thermal printer is that a semiconductor
heating element is installed on the print head
After the print head is heated and exposed to the thermal printing
paper, the desired pattern can be printed
The image is generated by heating, which produces a chemical
reaction in the film
This thermal printer chemical reaction is carried out at a certain
temperature
High temperature will accelerate this chemical reaction
When the temperature is lower than 60℃, the paper will take a long
time, even several years, to become dark
When the temperature is 200°C, this reaction will be completed in a
few microseconds.
Application of thermal printer
The principle is to convert the data received by the printer into a
dot matrix signal to control the heating of the thermal unit
Thermal printers have been widely used in POS terminal systems,
banking systems, medical equipment and other fields
Thermal printers can only use special thermal paper
The thermal paper is coated with a coating that will change color
by chemical reaction when exposed to heat
Similar to photographic film, but this layer of coating will change
color when exposed to heat
Using this characteristic of thermal coating, thermal printing
technology emerged.
FAQ
Q1: Do I need ink?
A1: No, the print head develops color by heating the color-changing
layer on the thermal paper point by point.
Q2: Is it possible to print in color? Or is it only black and
white?
A2: Dear, only one color can be printed at a time, usually black.
At present, there are blue, red, pink and other monochrome writing
thermal papers on the market;
In addition, there are color thermal papers, which are printed with
different colors of base paper in black.
Q3: Can I print on thermal adhesive paper?
A3: Support printing on self-adhesive paper and thermal paper.
Q4: What kind of thermal paper is used?
A4: It can support thermal paper rolls with a width of 112mm and a
diameter of 40mm.
It is recommended to use the official ten-year thermal paper, which
does not contain bisphenol A
It can be stored for ten years in the specified environment.
