Thermal Kiosk Printer can be divided into Thermal Line Dot System and Thermal Serial Dot System according to the arrangement of Thermal elements. Column thermal sensitivity is an early product, mainly used in some of the printing speed requirements are not high occasions, domestic authors have been used in their products. The line Thermal Portable Receipt Printer is a 1990s technology that prints much faster than the column thermal sensor, with the fastest speed reaching 230mm/ s. In order to realize high speed thermal printing, in addition to selecting high speed thermal printing head, the corresponding control board must cooperate with it.
58mm Thermal Printer paper is a special coating process paper, its appearance and ordinary white paper similar. Thermosensitive paper surface is smooth, is made of ordinary paper as a paper base, coated with a layer of thermosensitive hair color layer, are coated on the surface of ordinary paper, hair color layer is composed of adhesive, color agent, colorless dye (or Bluetooth Thermal Printer), not separated by microcapsules, chemical reactions in the "latent" state. When thermosensitive paper meets the hot print head, the print head where the color reagent and colorless dye that occurs chemical reaction and color, the formation of text and text.
When thermosensitive paper is placed in the environment above 70℃, thermosensitive coating starts to change color. The reason of its discoloration is related to its composition. Thermosensitive components in thermosensitive paper coating are mainly of two kinds: one is colorless dye or leucochroma dye; The other is a color reagent. This type of thermal paper is also known as bicomponent chemical thermal recording paper.
The main colorless dyes are: crystal violet lactone (CVL), fluorane system, colorless benzoimyl blue (BLMB) or spiropyran system. Commonly used as color reagent is: para-hydroxybenzoic acid and its esters (PHBB, PHB), salicylic acid, 2, 4-dihydroxybenzoic acid or aromatic sulfone and other substances.
Thermosensitive paper after heat colorless dye and color reagent chemical reaction to produce color, so use thermosensitive paper on the fax machine to receive signals to print or print directly with thermosensitive printer, text and text will be displayed. As there are many kinds of colorless dyes, so there are different colors of writing, there are blue, purple, black and so on.