Why is the printer copying black?

The reason why the printer prints black copies and the solution: 1. If there is a problem with the printer, clean the printer and then restart the machine; 2. If there is a problem with the ink cartridge, disassemble the ink cartridge, check and spread it out evenly; 3. The quality of the printer toner cartridge is not good. You can replace it with a good quality one.

#The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

What's wrong with the black color on the printer's copy?

1. It may be a problem with the printer. Just clean the printer. Clean it a few times and then restart the machine.

2. There is a problem with the ink cartridge. Because the toner is low and spread unevenly, the background color of the copy is dark and irregular. You can disassemble the ink cartridge and take a look. If it is missing, remember to add it in time.

3. It may be that the quality of the printer toner cartridge is not good. You can replace it with a good quality one.

Printer is one of the computer output devices, used to print computer processing results on relevant media. There are three indicators to measure the quality of a printer: printing resolution, printing speed and noise. There are many types of printers. Depending on whether the printing element hits the paper, they are divided into impact printers and non-impact printers.

According to the printing character structure, it is divided into full-width character printers and dot matrix character printers. According to the way a line of words is formed on paper, they are divided into serial printers and line printers. According to the technology used, it can be divided into cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic, light-emitting diode and other printers.

Dot matrix printer:

Dot matrix printers have occupied an important position for a long time in the history of printers, from 9-pin to 24-pin , it can be said that the history of dot matrix printers runs through these decades. The reason why dot matrix printers have been so popular for a long time is inseparable from its extremely low printing cost, ease of use, and special use for document printing.

Of course, its low print quality and loud working noise are also the reasons why it cannot adapt to the needs of high-quality, high-speed commercial printing, so it can only be used for ticket printing in banks, supermarkets, etc. Traces of it can still be seen in few places.

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