This is A Brand NEW Original Canon Drum Unit, it is known as the GPR6 Drum, and has the Canon Part Number 6648A004AA. Mfg Specifies a 55,000 page Yield.
Known to work in the following Machines:
Canon ImageRunner 2200
Canon ImageRunner 2220 i
Canon ImageRunner 2220 n
Canon ImageRunner 2800
Canon ImageRunner 3300
Canon ImageRunner 3320 i
Canon ImageRunner 3320N