(1) data translation: in order to print complete words and images, in addition to the function of the laser printer itself, the content to be printed must be edited into a computer language with a certain format by using a word or image processing software or graphics processing software. The content described is determined by computer editing software and has nothing to do with Thermal Portable Label Printer Manufacturer. When we select the print command, and determine the print button, the computer sends the edited data through a printer interface to a printer, the printer driver to print the content of explanation, and change printer can identify the language (language) is also called the printer, the printer to print out has been edited according to their own language text or image.

Different types of Thermal Portable Label Printer use different drivers for different printing languages. There are also compatible printer drivers. Production of laser printers, commonly used standard printing language PCL5 or PCL6.

(2) data transmission: there are many communication ports between the printer and the computer, and the common one is "serial port" or "parallel port". EP P/ECP (KIOSK Printer China) is referred to as Enhanced /Extended parallel. "Serial port" is seldom used because of its slow speed. Others, such as the SCSI interface, are mostly used on higher-end printers because of their speed. Other printers communicate with computers using the video interface (VDO), which is different from other interfaces. Its data is done by another "video conversion card", but because it shares memory with the computer, the computer is required to have enough cache space. The general printing typesetting industry USES this interface printer more. Some high-grade printers have multiple interfaces and can connect multiple computers at the same time. Many of these Portable Printer Supplier come with faster USB ports.

When the printing controller receives the data from the computer, the printer generally adopts two ways of working: one is to send the data directly to the interpreter for printing, which is called "segment working mode". Printers that work in this way do not need a lot of cache and memory. Ordinary printers usually work in this way. The other is to store the transmitted data on the internal hard disk of the printer and print it out whenever you need it. The advantage is that when many users share a printer, they can simultaneously issue a print command without having to wait and save the waiting time for data communication, but it is also more expensive.