SKU:

CS-DR420-2BK

Printer Brand:

Brother

OEM Number:

DR420

Ink Color:

Black

Page Yield:

Black:12000

Printer Type:

Laser Cartridge

Condition:

New Compatible

Frequently Asked Questions

What is the DR420 drum unit's job in my printer?

It forms the image. Your toner cartridge supplies the powder, but it is the drum's coated surface that arranges that toner into the page image and transfers it to the paper. When the drum surface wears, print quality suffers even with a brand-new cartridge fitted — which is why the two parts are replaced on separate schedules. This unit costs $42.52.

How can I tell the drum is the problem?

The classic tells are marks or spots that repeat down the page at the same spacing, a gray haze across areas that should be white, and poor output that does not improve when a fresh cartridge goes in. The printer also monitors drum life and will post its own warning when replacement is due.

Which printers does this drum fit?

The DR420 serves MFC-7240, MFC-7460, MFC-7860DW, MFC-7360, MFC-7360DN, MFC-7460DN, MFC-7360N, MFC-7365, MFC-7365DN, MFC-7860, HL-2130, HL-2240, HL-2275, HL-2275DW, HL-2250DN, HL-2132, HL-2240D, HL-2270, HL-2220, HL-2242, HL-2270DW, HL-2230, HL-2242D, HL-2280, HL-2230D, HL-2250, HL-2280DW, DCP-2240D, DCP-7060, DCP-7065, DCP-2270DW, DCP-7060D, DCP-7065DN, Intellifax 2840 and Intellifax 2940 — the Brother family built around the TN420/TN450 cartridges.

Do I have to replace my toner cartridge at the same time?

No. Lift your existing cartridge out of the old drum with the lock lever, click it into this drum, and carry on — its remaining toner is fully usable. Only fit a new cartridge when the old one is actually empty.

Is there anything to set after installing?

Yes: reset the drum counter from the printer's menu once the new drum is in. The printer estimates drum life by counting pages, so the reset is what tells it a fresh unit has been fitted and clears the drum warning.

What warranty covers this drum?

Our 1-year warranty and free returns for a full year. The shipping & returns page explains how returns and replacements work, and support is available 9 AM to 5 PM CST.

Can this 2-pack be split between two printers?

Yes. The two DR420 units are identical and serve the whole TN420/TN450 family, so one can go into a busy MFC-7860DW while the second renews an HL-2240 on another desk. Each printer keeps its own existing cartridge, which lifts out of its old drum and clicks into the new one — so a split pack refreshes two machines without buying toner for either of them.

When should I reorder once both drums from the pack are in service?

As soon as the second drum is fitted. The pack's value is the sealed spare waiting on the shelf; once that spare goes into a printer, the buffer is gone and the next drum change depends on a delivery. Since each DR420 is rated up to 12,000 pages, ordering at that point leaves generous time — but it converts the next drum warning back into a five-minute swap.

How many sheets does the pack's 24,000-page capacity represent on a duplex printer?

About 12,000 sheets. Drum life is counted in printed sides, and a two-sided page uses two of them, so a printer that defaults to duplex will work through each 12,000-page drum on roughly 6,000 sheets of paper. Single-sided printing keeps the sheet and page counts equal. Either way the pages are the honest measure — use the machine's page counter, not the paper drawer, to judge remaining drum life. For the TN420 and TN450 packs priced both ways — at the 1,200-page and the 2,600-page rating — plus the DR420 drum sets, see our Best Brother TN450 Toner Cartridges guide.

How do I judge the first drum from the pack fairly?

Fit it, move your existing cartridge across, and reprint a page that carried the old drum's repeating marks — then judge the third or fourth sheet, not the first. The fresh DR420 surface and a part-used cartridge need a page or two to settle. If the defect has gone by then, the pack has proven itself and the second drum can wait on the shelf with confidence.

About This Brother DR420 Drum Unit

A compatible DR420 drum unit for Brother's TN420/TN450 printers, at $42.52 — the part to change when repeating marks, gray shading or the drum warning say the imaging surface has worn, while your current cartridge still has life in it. Ships from IL, PA, GA, or CA, backed by a 1-year warranty and 1-year free returns. Cartridges for the same platform: the TN450 and TN420.