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  Open the front cover. Note: You need to print the toner dot matrix checklist first (select “drum dot matrix printing” in the “Options” of the control panel), in order to understand the locations where the toner cartridge is not clean. Power off the device after printing Remove the toner cartridge and drum unit assembly […]

Why does the printer print with gray background? I. New print cartridge If the original HP print cartridge that you just purchased prints with a gray background, it may be caused by accidental impact and incorrect operation during transportation or use, which may cause damage to the internal components of the print cartridge. Of course, […]

How often do laser printer cartridges need to be replaced? Laser printers because of the large print volume of a single toner cartridge, a toner cartridge filled with toner can print thousands of sheets, which has led to the popularity of laser printers. Many households have also purchased laser printers, so we need to prompt […]

The most troublesome problem in copying work is “paper jam”, which accounts for more than 80% of copier failures. Due to the limitation of the working principle, copying machine jams are inevitable. All we can do is to take various measures to minimize the occurrence of "jam". The paper jam rate of a good copying […]

What is the color performance of laser printers? There are two most direct advantages of laser printers for inkjet printers 1, the printer is fast 2, the cost of consumables is low, but his shortcomings relative to inkjet printers is that only four colors (CMYK) all colors are completed by color registration, so the color […]

  Imported raw materials, it is 100% compatible with the original. The color is realistic and the color gamut is wide. Epson ink has a wide matching medium. Epson 002 black ink is  hot sell in 2019.

How to automatically clean an HP printhead The easiest way to resolve your print quality issue is by running a cleaning on your printer.  The cleaning function is included in the software of every HP printer model and is usually found under the “printer maintenance” section of your printer’s display menu.  Consult your printer manual […]

Thanks to technology, customers now have a wider variety of printing options to choose from when looking for a printer of their choice. When buying inkjet printers, in particular, one has to decide whether they would prefer an inkjet printer that uses an ink tank one that uses ink cartridges. Until very recently, manufacturers sold […]