Toner Black Approx 8000 Prints

the main components of the toner cartridge are: Photoconductor drum. The most common cartridge failure is due to the drum. Wiper blade. The wiper blade clean any remaining toner from the drum. Developer roller. It carries the toner from the supply chamber to the drum. Toner Charge roller. It places the initial electrical charge on the drum, and erase is the residual charge at the end of the print cycle. Developer roller blade. This blade controls the amount of toner on the developer roller. Recovery blade. It guides the toner that the wiper blade removed from the drum into the waste chamber. First of all, change the toner cartridge, to be sure the problem is related to the cartridge and not to the printer. if the problem disappears, for sure the problem is the toner cartridge. Scratched or damaged drum. Check the drum. You'll see a line on it. Change the drum There is no reliable way to