What is the Difference between a Drum Unit and Toner?

Ever wondered about the toner cartridge and drum unit? When we have asked customers about this, many of them seem confused. If you own a laser copier, then we definitely think customers should know this so that they will know when to replace the right consumable.

A toner cartridge uses dust-like powder, known as toner, and heat to fuse it to the page. If you see faded prints or graphics, then you will want to replace your toner cartridge. Meanwhile, the drum unit transfers the toner to the paper.

When the laser copier receive a command, the toner will be attracted to the photo-sensitive roller located inside the drum unit. They will transfer the toner from the roller in the drum unit to the paper as the toner heats up. After the drum unit deteriorates, you will normally notice an error message that says you have to replace the drum unit. For the majority of cases, the toner cartridge is located separately from the drum unit. Normally, you can go through many toner cartridges before you have to replace the drum unit.