Precautions for using the printer:
1. If the printer has fever, smoke, peculiar smell and abnormal sound, please cut off the power immediately and contact the information officer.
2. It is forbidden to place other items on the printer. Please unplug the printer from the power outlet when it is not used for a long time.
3. Printing is prohibited when printing paper and ribbon box are not set. The print head and print roller will be damaged.
4. The temperature of the print head is very high. Don't touch it until the temperature drops. Prevent burns and injuries.
5. Foreign objects (staples, metal sheets, liquids, etc.). ) Do not enter the machine, otherwise it will cause electric shock or machine failure.
6. When the printing quantity is too large, control the printing quantity within 30 copies and let the printer rest for 5- 10 minutes to avoid overheating and damage to the printer.
7. When printing documents, it is not allowed to use paper with too high thickness (more than 80g) and wrinkled and folded paper.
Extended data:
Printer is one of the output devices of computer, which is used to print the computer processing results on related media. There are three indicators to measure the quality of a printer: printing resolution, printing speed and noise. There are many types of printers, which can be divided into impact printers and non-impact printers according to whether the printing elements impact the paper. According to the structure of printed characters, there are full-width printers and dot matrix printers. There are serial printers and line printers according to the way a line of words is formed on paper. According to the technology adopted, it can be divided into cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic and LED printers.
The printer was invented by John Vaught and dave Donald. A device that prints computer operation results or intermediate results on paper in a specific format such as numbers, letters, symbols and graphics that people can recognize. Printers are developing in the direction of light, thin, short, small, low power consumption, high speed and intelligence.
References:
Baidu encyclopedia-printer