LCL company has more than 16 years of professional manufacturing experience.
Please notice: The model sold in this link is drum unit DR820, it doesn't include other models on the following text and installation instructions
This printer consumes consist of a toner cartridge (TN850/ TN880) and a drum unit (DR820)
The printing effect consists of toner cartridge and drum unit
Both of toner cartridge and drum unit belong to consumables, any of them whose service life is over needs to be replaced. the working principle is:
1. Install the toner cartridge (TN850/ TN880) and drum unit (DR820) together and then produces the printing.
2. Toner cartridge (TN850/ TN880)contains the original powder bin, which provides the toner
3. Drum unit (DR820) contains the waste toner bin, which collects the used powder when printing
4. If the waste powder which is collected in the waste toner bin of drum unit DR820 is full, the waste toner bin will overflow waste powder during the printing process, and needs to replace a new drum unit DR820
We provide the method to install them before printing.