When your printer has printed a certain number of pages, it will ask you to change the drum unit. You can avoid this by replacing the chip that is currently on your drum unit with this one as long as the drum was in working condition.
When your printer has printed a certain number of pages, it will ask you to change the drum unit. You can avoid this by replacing the chip that is currently on your drum unit with this one as long as the drum was in working condition.