You know, I read my manual twice before writing here, and I could not find that. The thing that you wrote.
The thing is, that I'm pretty sure that somewhere, a long time ago when I was getting this printer, that it said I could get 10,000 sheets printed with one black cartridge... so I want to get another one before I reach that critical number.
Plus, I think I read somewhere else that there were two types of black cartridges and that the one printed less...
so I think it's time to get my backup.
Say I got the drum, just to be safe, do they get old and dry up, and become less functional if you own them for say a year before using them?
(It took me about a year to print as many copies as I have) --