If the HL-2230 is the Brother you forget you own — the compact 24 ppm machine that has sat beside one desk for a decade, printing without drama — its supplies could not be simpler. It belongs to the large TN420/TN450 family, which means cartridges are inexpensive, easy to find, and shared with fifteen other models.

First, the Swap (It Takes Two Minutes)

Because most people land on this page mid-error-message, the practical part comes first:

1. Keep the power on. Open the front cover and slide the combined drum-and-toner unit out toward you. 2. Set it on scrap paper. Press the green lock lever and raise the empty cartridge out of the drum. 3. Unpack the replacement, rock it side to side five or six times, and remove its protective cover. 4. Lower it into the drum until the lock lever snaps up on its own — that click means it is seated. 5. Run the drum's green cleaning tab across and back, return it to its home position, slide the whole unit back into the printer and close the cover.

If the "Replace Toner" warning survives a correctly seated cartridge, take the unit out and repeat step 4; toner that has settled unevenly is the usual cause of both the message and pale first pages.

What Each Supply Costs Per Page

Cartridge or unit	Yield (Brother rating)	Our compatible price*	Running cost
TN420	~1,200 pages	$23.59	~2.0¢ per page
TN450	~2,600 pages	$23.59	~0.9¢ per page
DR420	~12,000 pages	$26.52	~0.2¢ per page

*Prices taken from the product pages on November 2, 2026 and can change.

The striking row is the middle one. Our TN450 costs exactly what our TN420 costs, yet it holds more than double the toner — so on this shelf, choosing the standard cartridge only makes sense for a printer in its final months of service. For any HL-2230 still in regular use, the TN450 is cheaper per page, halves the number of swaps, and halves the chances of running dry in the middle of a print run.

A Printer Sized for One Person's Work

The HL-2230's supply habits follow from its design. It connects by USB to a single computer, prints at up to 24 ppm, and feeds from a 250-sheet tray with a manual slot for envelopes and letterhead. There is no automatic duplex unit and no network interface, so its workload is one person's letters, reports and spreadsheets — steady, text-heavy, and close to the 5% coverage the yield ratings assume. Owners typically see a TN450 last many months; the drum, at roughly ten times the standard cartridge's life, is a once-in-several-years purchase.

Buying the Toner and Drum Together

Brother's split design means the drum message, when it finally comes, is a separate errand — unless you plan for it. Our TN450 and DR420 set boxes one high-yield cartridge with one drum for $34.03, which is $16.08 less than the $50.11 the two parts total separately. Balance, as always: if the drum counter on your printer is still low, a set just parks an unneeded drum in a drawer. Buy the set when the drum is genuinely aging; buy toner alone until then.

A Note on Keeping a Spare

Because this printer serves one desk, its toner emergencies are one person's emergencies. The family-wide compatibility works in your favor here: a single spare TN450 covers the HL-2230 and any other family machine in the house, so keeping one on the shelf is cheap insurance rather than stockpiling.

Frequently Asked Questions

Is the HL-2230's drum really separate from the toner? Yes. The TN420 or TN450 cartridge clicks into the DR420 drum unit, and the two wear out on different schedules — roughly four to five high-yield cartridges per drum. You only ever replace the part the printer names.

Which cartridge did my printer come with? A starter cartridge of about 700 pages. Every replacement — TN420 or TN450 — holds more, so the second cartridge always outlasts the first.

Can the HL-2230 share cartridges with my office's HL-2270DW? It can. Both machines appear on Brother's TN420/TN450 compatibility list, along with the rest of the family below, so one spare cartridge can cover several different printers.

Pages are coming out light even with toner left. What gives? Usually settled toner. Remove the cartridge, rock it side to side, and reinstall. If the lightness follows a pattern of spots or repeats down the page, suspect the drum instead.

Does this printer need a chip reset or a special procedure for compatibles? No tools or menus are involved in a normal swap. Seat the cartridge until the lever clicks, clean the corona wire with the green tab, and the printer returns to Ready on its own.

Other Printers That Use TN420, TN450 and DR420

Everything in this guide about yields and costs also applies to the HL-2230's fifteen relatives:

• HL-2220
• HL-2240
• HL-2240D
• HL-2270DW
• HL-2275DW
• HL-2280DW
• DCP-7060D
• DCP-7065DN
• MFC-7240
• MFC-7360N
• MFC-7365DN
• MFC-7460DN
• MFC-7860DW
• FAX-2840
• FAX-2940

Ready to order? Start from our HL-2230 toner page, which lists every cartridge, drum and set that fits this printer.