The Brother DR-B021 is a drum cartridge, not a printer itself. It is specifically designed for use with a few Brother laser printers. The main function of the Brother DR-B021 drum cartridge is to transfer toner powder onto the paper during the laser printing process. It works like this: The laser beam in the printer creates an electrostatic image on the drum's surface. Toner powder, which is a fine black powder, is attracted to the charged areas of the drum. The drum then rolls over the paper, transferring the toner powder onto it. Heat and pressure are applied to fuse the toner powder to the paper, creating the printed image. The Brother DR-B201 drum cartridge is designed to last for a certain number of printed pages, typically around 12, 000 pages. However, this number can vary depending on the type of printing you do. For example, if you print a lot of graphics-heavy pages, the drum cartridge will likely need to be replaced sooner. #Vadodara-cartridge-toner-refilling #Toner-refilling-services-Vadodara #Cartridge-refilling-Vadodara #Vadodara-printer-toner-refill #Toner-cartridge-refill-Vadodara #Printer-cartridge-refill-services-Vadodara #Printer-toner-refill-shops-in-Vadodara #Vadodara-printer-cartridge-refilling-center #Toner-cartridge-refilling-near-me #Vadodara-toner-cartridge-recycling #Printer-toner-refill-experts-Vadodara #Toner-cartridge-refill-cost-in-Vadodara #Best-toner-cartridge-refill-Vadodara #Affordable-toner-refill-in-Vadodara #Vadodara-toner-cartridge-refill-experts #Cartridge-toner-refilling-station-Vadodara #Local-toner-refill-Vadodara #Eco-friendly-toner-refill-Vadodara #Vadodara-toner-cartridge-refill-specialists #Toner-cartridge-refill-pickup-and-delivery-Vadodara #Brother-Printer-Repair-In-Vadodara #All-Type-Printer-Reapir-In-Vadodara #Brother-Printer-Repair-Successful-With-Original-Parts