How to Find the Right Toner Cartridge for Your Printer
Direct answer: To find the right toner cartridge, first confirm your exact printer model from the label on the front or back of the machine, then read the cartridge code printed on the old cartridge or listed in the printer's supply menu. Search by that cartridge code (not just the printer brand), decide between standard and high yield, and check whether your printer also needs a separate drum unit.
Ordering the wrong toner is one of the most common and avoidable purchasing mistakes in offices. A cartridge that looks almost identical can still fail to fit, trigger a "supply not recognised" error, or belong to a different regional version. For procurement teams, office admins and IT staff in Saudi Arabia who buy supplies for several machines, a simple identification routine saves returns, delays and downtime. This guide walks through that routine step by step.
Where do I find my printer model number?
The full model number is usually printed on the front panel, on top of the scanner lid, or on a rating label at the back or underneath the printer. You can also find it in the printer's settings menu, on a printed configuration page, or in the device list on your computer.
Write down the complete model, including letters and suffixes. For example, "HP LaserJet Pro M404dn", "Brother HL-L2350DW" or "Konica Minolta bizhub C308". A small difference in the suffix can mean a different series, and sometimes a different cartridge.
What is a toner cartridge code and where is it printed?
The cartridge code is the manufacturer's part number for the toner itself. It is the most reliable way to search, because one cartridge often fits several printer models. You can usually find it in three places:
- On the old cartridge: look for a sticker or embossed code on the top or side, such as CF259A, TN-2420, Cartridge 057 or TN324K.
- In the printer menu: most office printers show the installed supply and its part number under "Supplies status" or "Consumables".
- In the user manual or inside the front cover: many models list compatible supplies on a label next to the toner bay.
For HP printers, our guide to HP toner cartridge codes explains how the letters and numbers in HP part numbers work.
Examples: printer model vs cartridge code
| Printer model | Toner cartridge code | Notes |
|---|---|---|
| HP LaserJet Pro M404 / MFP M428 series | CF259A (59A) or CF259X (59X) | "X" is the high-yield version of the same cartridge. |
| Brother HL-L2350DW / DCP-L2550DN | TN-2420 toner, DR-2400 drum | Toner and drum are separate parts and are replaced at different times. |
| Canon i-SENSYS MF443dw / LBP223dw | Cartridge 057 or 057H | "H" indicates higher page yield. |
| Konica Minolta bizhub C258 / C308 / C368 | TN324K, TN324C, TN324M, TN324Y | Colour copiers need the right code for each of the four colours. |
Always confirm against your own machine before ordering. The table shows how codes work in practice; it is not a complete compatibility list.
Should I choose standard or high-yield toner?
Many cartridges come in two capacities that fit the same printer. High-yield versions cost more per cartridge but usually print more pages, which often lowers the cost per page and means fewer replacements. Standard cartridges suit printers that print lightly or that you plan to replace soon.
Compare options using the manufacturer's rated page yield and cost per page, not the shelf price alone.
Does my printer need a separate drum unit?
Some printers combine the toner and drum in one cartridge, so replacing the toner also replaces the drum. Others, including many Brother models and most office copiers, use a separate drum unit that lasts much longer than the toner. If your printer shows a "replace drum" message, a new toner cartridge will not fix it. Our explainer on toner, drum, developer and fuser explains what each part does.
Original or compatible: does it change which cartridge I buy?
A compatible cartridge is made to fit the same printers as the original, so you still search by the original cartridge code. Reputable compatible suppliers list the original code they replace, for example "compatible with CF259A". For a full comparison, see compatible vs original toner for offices, and learn how to spot low-quality compatible cartridges before you buy.
Checklist before you order toner
- Full printer model number confirmed from the machine label.
- Cartridge code copied from the old cartridge or supplies menu.
- Colour confirmed (K, C, M, Y) for colour printers and copiers.
- Standard or high yield chosen based on monthly print volume.
- Drum unit requirement checked.
- Original or compatible decided, with the replaced code clearly stated by the seller.
- Quantity planned so you keep one spare per critical printer, stored away from heat (see our toner storage tips for hot climates).
Best approach for offices with many printers
Best for small offices: keep a printed note on each printer with its model and cartridge code.
Best for procurement teams: maintain a simple fleet list (location, model, toner code, drum code, average monthly pages) and order from it, so every purchase request already has the right part numbers.
Best for mixed fleets and copiers: send the model list to your supplier and ask them to confirm codes before quoting. You can browse our toner cartridges or send your list through our request for quote page.
FAQ
Can I search by printer brand only?
No. One brand can have hundreds of cartridges. Always search by the full model number or, better, the cartridge code.
Why does a cartridge with the same shape not work in my printer?
Cartridges can look similar but use different chips, capacities or regional versions. The printer reads the chip, so a cartridge meant for another model or region may be rejected even if it fits physically.
Does one cartridge fit several printer models?
Often, yes. Manufacturers frequently use one cartridge across a printer series, which is why the cartridge code is a more reliable search term than the printer model.
What if I cannot find the code on the old cartridge?
Print a configuration or supplies status page from the printer menu, check the label inside the front cover, or contact our team with the full printer model and we will help you identify the correct cartridge.