You simply cannot operate a mono laser printer without a
functioning drum unit - like the Lexmark 50F0ZA0 - being installed.
With a page yield that far exceed that of the corresponding Lexmark
toner cartridge, the 50F0ZA0 imaging drum unit works out incredibly
economical and needs changinging rarely.
Lexmark estimate that this 500ZA black image drum will need
changing after 60,000 top quality prints. Lexmark are so confident
in the quality of the 500ZA black image drum that they offer a
full warranty directly.