The cleaning scraper is also called Drum cleaning blade, which is attached to the surface of the photosensitive drum. During the printing process of the printer, toner forms an image on the toner cartridge and then transfers it to the printing paper. During the transfer process, there will be a small amount of toner remaining on the surface of the photosensitive drum. If it is not removed, it will affect the printing quality of the next sheet. The role of the Drum cleaning blade is to clean the residual toner on the surface of the photosensitive drum.

Drum cleaning blade is composed of metal frame and rubber sheet, and the quality of the scraper also directly affects the service life of the toner cartridge. A good Drum cleaning blade material looks translucent with a little yellow and is moderately hard.
If the scraper rubs against the drum core for a long time, there will be gaps and deformation on the rubber blade. When the drum cleaning blade is chipped or worn, there will be ground dust or vertical black lines on the printing paper.
When there are vertical black bands on the printed matter, try to replace the scraper to troubleshoot the problem. Drum cleaning blades cannot be repaired after they are worn out, and the fault can only be solved by direct replacement.