{"id":3895,"date":"2017-10-13T00:37:23","date_gmt":"2017-10-13T00:37:23","guid":{"rendered":"http:\/\/www.ldproducts.com\/blog\/?p=3895"},"modified":"2026-09-30T18:29:13","modified_gmt":"2026-09-30T18:29:13","slug":"whats-the-difference-between-a-toner-cartridge-and-a-drum-unit","status":"publish","type":"post","link":"https:\/\/www.ldproducts.com\/blog\/whats-the-difference-between-a-toner-cartridge-and-a-drum-unit\/","title":{"rendered":"Toner Cartridge vs Drum Unit: What’s the Difference"},"content":{"rendered":"
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Quick answer:<\/strong> A toner cartridge holds the toner powder. A drum unit is the light-sensitive cylinder that transfers that toner onto paper. Most HP toner cartridges have the drum built in, so you replace both at once. Most Brother laser printers use a separate drum unit that lasts through several toner cartridges and is replaced less often.<\/p>\n<\/div>\n

Everyone who owns a laser printer is familiar with replacing a toner cartridge. Not everyone is as familiar with drum units. So before we go any further, let’s define them both.<\/p>\n

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What’s the difference between a drum unit and a toner cartridge?<\/h2>\n

The toner cartridge<\/b> is the container that holds the toner powder. The drum unit<\/b> is a light-sensitive, electrically charged cylinder that transfers that toner powder onto paper to create text and images. The printer’s fuser then melts the toner in place.<\/p>\n

Both of these components are essential for producing a print. Depending on what printer you own, you might be used to replacing your drum unit occasionally, or you may have never had to replace a drum unit. So, why the inconsistency? It all depends on the design of your printer. A drum unit can be built into the toner cartridge or sold separately, depending on the consumable requirements of your printer. Consult your printer’s user manual to determine what consumables are appropriate for your machine.<\/p>\n

This is what a drum unit with a toner cartridge looks like:<\/p>\n

\"Brother<\/a><\/p>\n

This is what a drum unit looks like without the toner cartridge:<\/p>\n

\"Brother<\/a><\/p>\n

Which printers use a separate drum unit?<\/h2>\n

Most printers use toner cartridges with the drum unit built into the cartridge, but some brands use a separate drum.<\/p>\n

Most HP toners have a built-in drum<\/h3>\n

If you own an HP laser printer, the drum unit is most likely built into the toner. Therefore, there is no need to replace the drum separately. Every time you buy a new toner for that HP printer, you are replacing the drum.<\/p>\n

Most Brother toners and drum units are separate<\/h3>\n

Most Brother laser printer models use a separate toner and drum unit. In this case, the drum unit is not<\/em> built into the toner and must be replaced on its own. Separate drum units last much longer than a toner cartridge. For example, one Brother DR-730 drum<\/a> (about 12,000 pages) lasts through roughly four TN-760 high-yield toners<\/a> (about 3,000 pages each). Your printer should tell you when it’s time to replace the drum, but you can usually tell your drum is on its last legs if you start to see spots or lines across the page.<\/p>\n

\"LD<\/a><\/p>\n

Which is better: a built-in drum or a separate drum?<\/h2>\n

There is no real winner here. Printers that use toner with a built-in drum work just as well as printers that use a separate toner and drum. The main difference is how you pay for replacements.<\/p>\n

With a built-in drum<\/strong>, every new toner cartridge includes a fresh drum. Each replacement costs a bit more, but print quality stays consistent and there’s only one part to buy.<\/p>\n

With a separate drum<\/strong>, each toner cartridge costs less because you’re only replacing the toner. The drum lasts through several toners and is replaced occasionally.<\/p>\n

Here’s how the page yields compare on two popular setups:<\/p>\n\n\n\n\n\n\n
Printer setup<\/th>\nCartridge<\/th>\nApproximate page yield<\/th>\n<\/tr>\n
Brother HL-L2350DW (separate toner and drum)<\/td>\nBrother TN-760 toner<\/a><\/td>\n3,000 pages<\/td>\n<\/tr>\n
Brother HL-L2350DW (separate toner and drum)<\/td>\nBrother DR-730 drum<\/a><\/td>\n12,000 pages<\/td>\n<\/tr>\n
HP LaserJet P1102w (drum built into toner)<\/td>\nHP 85A toner<\/a><\/td>\n1,600 pages<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

On the Brother printer, you replace the drum about once for every four toners. On the HP printer, every 85A toner you buy includes a new drum. Over the life of a printer, separate toner and drum setups usually cost less per page, since you aren’t paying for a new drum with every toner.<\/p>\n

What type of printer is best comes down to preference. Some people prefer paying a bit more for toner with a built-in drum so they never have to think about the drum. Others prefer the lower cost of a separate toner cartridge and don’t mind replacing a drum occasionally. Whichever printer type you go with, factor in the cost of both the toner and the drum (if required) so you have a clear picture of long-term replacement costs.<\/p>\n

To save more on laser printing, consider compatible toner cartridges and drum units.<\/strong> Our compatible Brother DR-730 drum units<\/a> and TN-760 toner cartridges<\/a> cost less than name-brand originals and are backed by our lifetime guarantee.<\/p><\/blockquote>\n

To get a better understanding of how a separate toner cartridge and drum unit install in a Brother laser printer, check out our video below. If you’re wondering why we don’t have a similar video for a toner with a built-in drum, it’s because the installation process is as simple as sliding the toner into your printer.<\/p>\n