SKU:

CS-Lexmark-MS321DN-MX521ADE-BK

Printer Brand:

Lexmark

OEM Number:

56F1000

Ink Color:

Black

Page Yield:

Black: 6000

Printer Type:

Laser Cartridge

Condition:

New Compatible

Frequently Asked Questions

How quickly will a department get through 6,000 pages in an MX521ade?

Faster than the same cartridge lasts in a small office, because this is a departmental machine with a departmental appetite. At 2,000 pages a month the cartridge turns over in about a quarter; at 3,000 a month, closer to two months — and heavy copying pulls both figures forward. The page counter, not the calendar, is the number to watch.

Why buy a single cartridge for a fleet-class machine at all?

Three honest reasons: you are trialing this supply before committing the fleet, one satellite site needs a top-up outside the central order cycle, or a bulk shipment is in transit and a machine cannot wait. A single is the flexible quantity; departments running this model full-time usually graduate to the multi-packs for the lower per-cartridge price.

Does this cartridge fit the rest of our Lexmark fleet?

That is the platform's main virtue. The 56F1000 is shared across MS321DN, MS421DN, MS421DW, MS521DN, MS621DN, MX321ADN, MX521ADE and MX521DE, and while this listing is written for the MX521ade, the identical cartridge drops into the sibling printers and MFPs on that list. One cartridge number across the fleet means fewer wrong boxes ordered and a spare that fits whatever breaks down first.

When should IT reorder so the department never stops mid-job?

At the low-toner warning, not at empty. The warning is designed to leave a working buffer of pages, which is your window to get a cartridge from central stores or from us. Departments that reorder on the warning almost never see a hard stop; departments that wait for one eventually do.

Do copies really draw from the same supply as prints?

Yes — a copy is a print the machine makes from the glass, and it spends toner exactly the same way. On an MFP the copy count is the hidden half of consumption, which is why a cartridge can seem to vanish sooner than the print log explains. Only scans sent to email or folders are free; they never touch the toner.

What backing does this cartridge carry?

A one-year Clever Supplies warranty stands behind it, and returns cost you nothing during the first year — start one from our shipping and returns page. With warehouses in IL, PA, GA, and CA, both original orders and replacements move quickly, and support answers Monday through Friday, 9 AM to 5 PM CST.

About This Lexmark 56F1000 Single Cartridge for the MX521ade

One compatible Lexmark 56F1000 black toner cartridge, rated at 6,000 pages, matched to the workgroup pace of the MX521ade — where prints and copies together can turn a cartridge over in a single quarter. It is the right size for a trial, a top-up, or a satellite site, backed by a one-year warranty and one-year free returns. The full range is on our Lexmark toner page.