Summary takeaway: when using barcode printers print label, if the print head surface with dust, or printer print appear wear for a long time, can use alcohol to clean the print head or replace the print head. A, use process to determine whether a print head bolt bar code printers, the print head is made up by a row of heating element by, takeaway: when using barcode printers print label, if the print head surface with dust, or printer print appear wear for a long time, can use alcohol to clean the print head or replace the print head. A, use process to determine whether a print head bolt bar code printers, the print head is made up by a row of heating element by, common barcode printers print head 1 mm length with eight or 12 heating element, the width of the heating element is very small. The phenomenon of the print head bolt is usually easy to judge, generally you will find the barcode label printout paper there is a straight from the top down, fixed the blank line. Usually print head bolt is unable to repair, can replace the print head, and the price is not cheap. Second, the analysis of the main reason of print breakage - the dust on the surface of the bar code label paper. For the heating unit of precision, small dust, just like a big rock scratch precision. - inferior barcode label paper or carbon belt surface is uneven, which is one of the main reason causing the print head bolt. - often use inferior barcode label paper or carbon belt need high temperature, the print head to print clearly, and high temperature is often easy to cause print head bolt and shorten the service life of the print head. - drop the ground bar code label paper, dusty and back roll back already use. - the use of carbon belt width should be than barcode label paper slightly wide, because the edge of the bar code label paper is very sharp will cut the print head, so don't use than to save carbon belt and the size of the barcode label paper thin. - the print head at the bottom of the rubber roller is not clean, there are many prominent impurity the wear and tear on the print head. - in order to reduce the thermal print head is corrosion situation, usually can use ethanol or IPA wipe the paper scraps and carbon powder on the surface of the print head ( Don't touch the surface of the heating element) ; Recommended without, K, Na ions, Cl ion, and brand evaluation of high reliability and good barcode label paper and carbon belt; Try to avoid making the surface moisture. One thousand with moisture, please set the voltage to the closed position, until the water disappeared. Note: bar code printer of choose and buy one important component is the print head, the print head is formed by thermal electric group, printing is the process of thermal electric group fever carried carbon carbon powder is transferred to the process of paper. So in the choose and buy bar code printer, the print head is a worthy of special attention to the parts, take it and carbon is the soul of the whole printing process. Common printer on the domestic market at present due to differences in brand, there are two different print head, the print head is a flat type, the entire print head pressure in carbon belt, the print head can adapt to all kinds of carbon belt, with broad user base, the print head is one of the most common and widely used in various brands of bar code printer; Another is floating the print head, which is a new kind of mode of the print head, the print head just press in carbon belt, the print head while demand for carbon belt is higher, but it has the function of saving carbon belt so it is widely used in some big company technical force is abundant. Buy bar code printer, should choose reliable stores to buy. Because of bar code printer belongs to a kind of industrial equipment, and therefore its purchase channels relative to other commodities is especially important. Trustworthy businesses can provide users with the use of training and after-sales service.