20102022-Imran-Poster-Difference Between Drum & Toner


While the benefits and differences between a drum and toner may not be immediately obvious, if you have a better understanding of how they vary, it will be easier for you to grasp how to maintain and replace these consumables.

Modern laser printers often include both the drum and the toner, and some even combine the two components into a single unit. However, other producers, including Brother, maintain these two parts apart.

The advantage of approach is that if your toner runs out or the drum unit breaks, you can replace the separate parts. The entire unit will need to be replaced if the two parts are housed together and one or the other has to be replaced.

How Do They Work?

The toner is transferred to the paper via the drum unit. When you press “print,” the drum’s surface acquires a static charge and the laser scans an image onto it. It is an aluminium cylinder with a photosensitive covering. The picture is created by the drum turning and picking up toner from the cartridge. It is then either rolled directly onto the paper passing below or is transferred to the paper later through a charged transfer belt. The image is then baked onto the paper by the fuser.

Manufacturers refer to the drum in a variety of ways, such as a photoconductor unit, an imaging drum, and a print unit. In general, a toner cartridge contains a powder that resembles dust and that fused into a paper to produce your prints. The drum and toner are included in the same cartridge. The toner cartridge, if it is provided separately, essentially consists of a toner container and a roller for delivering toner to the image drum.


As you may anticipate, changing these consumables will cost more when using a combination of drum units and toner cartridges than when using just one drum unit.

Generally speaking, a single drum unit will outlive two or three toner cartridges. In other words, if the parts are kept apart, you may change the toner without having to replace the drum unit when it’s not necessary. But it goes without saying that replacing a drum unit will cost more money than replacing a combination unit. The drum units and cartridges are maintained apart anyway as the price range increases to allow for not having to replace individual parts needlessly.

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