How to Perform a Brother Drum Unit Replacement
April 14, 2026
Running out of toner at the wrong moment is one of those small business frustrations that feels entirely avoidable — and it is, once you know what to look for. Whether you’re managing a busy office with a high-volume laser printer or a small team sharing a single machine, choosing the right toner cartridge can save you money, reduce downtime, and keep your documents looking sharp. This guide walks you through everything you need to know.
This sounds obvious, but it’s the most common mistake buyers make. Toner cartridges are not universal — each is engineered specifically for a printer model or series. Before purchasing, locate your printer’s full model number (usually found on a label on the front or underside of the machine) and use it to search for compatible cartridges.
For example, an HP LaserJet Pro M404 requires the HP 59A (CF259A) or the higher-yield 59X — not just any HP toner. Using the wrong cartridge can cause print errors, damage the drum unit, or void your warranty.
Most toner cartridges come in two capacities:
For most businesses, high-yield cartridges offer better value over time. If your team prints regularly, the cost per page on a high-yield cartridge can be 30–50% lower than its standard counterpart.
OEM (Original Equipment Manufacturer) cartridges are made by the printer brand itself — HP, Canon, Epson, Brother, etc. They are guaranteed to work with your printer and typically deliver the most consistent print quality.
Compatible cartridges are produced by third-party manufacturers to fit the same printers. They are usually cheaper, but quality varies significantly between suppliers. For business-critical documents — contracts, proposals, client-facing materials — OEM is generally the safer choice.
A good rule of thumb: if print quality and reliability matter, go OEM. If you’re printing internal drafts or high volumes of everyday documents, a reputable compatible cartridge can be a cost-effective alternative.
Page yield is the estimated number of pages a cartridge will print before running out, measured under ISO/IEC 19752 standard conditions (5% page coverage). Always compare cartridges on a cost-per-page basis rather than the sticker price alone.
For example:
Cartridge B costs more upfront but saves money in the long run — especially for high-volume offices.
Many laser printers use a separate drum unit alongside the toner cartridge. The drum transfers the toner image onto paper and typically lasts for several toner replacements before needing to be replaced itself. Confusing the two is a common and costly mistake.
Check your printer manual to confirm whether your model uses an integrated toner-drum unit (replaced together) or separate components (replaced independently).
Toner cartridges have a shelf life — typically 2 years from manufacture when stored correctly. Keep unused cartridges in a cool, dry place away from direct sunlight and humidity. Avoid storing them near heat sources, as this can cause the toner powder to clump and affect print quality.
If you buy in bulk to reduce costs, make sure you’ll use the cartridges within the manufacturer’s recommended timeframe.
Most major brands — HP, Canon, Brother — offer free cartridge recycling programmes. Not only does this reduce landfill waste, but some programmes offer rewards or credits towards future purchases. It’s a simple step that makes your office’s printing habits more sustainable.
Choosing the right toner cartridge doesn’t have to be complicated. Match the cartridge to your exact printer model, consider your monthly print volume when deciding between standard and high yield, and weigh up OEM versus compatible based on your quality requirements and budget.
At Printer Supplies, we stock a wide range of genuine OEM toner cartridges from HP, Canon, Brother, and more — with fast UK delivery so you’re never caught short. Browse our full range and find the right cartridge for your office today.
