What is the process of producing a remanufactured cartridge?

A.
adding new toner to the empty hopper with little or no furbishing of the cartridge

B.
disassembling, cleaning, changing worn parts, and drum, if needed, and then adding new toner

C.
disassembling, emptying hopper, cleaning components, and adding recoated drum

D.
disassembling, cleaning waste hopper and drum, adding toner, and sealing cartridge

Explanation:
Reference: http://www.engineersgroup.ru/instrukcii/hp/cb435a.pdf