Frequently Asked Questions

Is this really the cheapest way to buy black pages for these printers?

By the math, yes. A single TN439BK runs about 0.38 cents per page, and lower tiers cost more per page still — the TN436BK single works out near 0.49 cents. In this five-pack the cartridges drop to $19.12 each, which puts you at roughly 0.21 cents per page. No other black option in this cartridge family beats that figure.

What kind of office actually goes through 45,000 pages?

More than you might expect: a legal, accounting, logistics, or medical office printing 3,000 to 4,000 black pages a month will finish this pack in about a year. High-volume single-printer setups — a shared departmental machine, for instance — are the natural home for a five-pack. If your printer asks for a fresh black cartridge every few weeks, this is your pack.

Will these cartridges fit my machine?

Each of the five is a standard TN439BK cartridge built for HL-L9310CDW, HL-L9310CDWT, HL-L9310CDWTT and MFC-L9570CDW. They install one at a time as needed, exactly like a single purchase, and the printer tracks each one individually.

How do I store four spare cartridges without hurting them?

Leave them sealed, keep them flat, and store them in a normal indoor room away from direct sun and heat sources. Toner is a dry powder, so it does not dry out or expire the way liquid ink does. A supply cabinet near the printer is a perfectly good home for the spares.

Should I think about the drum when buying this much toner?

It is worth a glance. The separate DR890 drum in these printers is rated around 30,000 pages, so somewhere inside this pack's 45,000 pages the machine will likely ask for one drum change. That is normal maintenance, unrelated to the cartridges themselves, but high-volume buyers like to keep it on the calendar.

What guarantee stands behind a purchase this size?

The same one that stands behind a single cartridge: a one-year warranty on every unit and free returns throughout the first year, with the details on our shipping and returns page. Buying in bulk does not dilute your coverage one bit. Support answers Monday to Friday, 9 AM to 5 PM CST.

About This TN439BK Black 5-Pack

Five TN439BK cartridges at $19.12 each — $73.95 less than five singles — deliver 45,000 rated pages at about 0.21 cents per page, the lowest black cost available anywhere in this platform. It is the stock-up choice for heavy daily printing, shipped by Clever Supplies from warehouses in Illinois, Pennsylvania, Georgia, and California.