Frequently Asked Questions

How long will one cartridge keep an SF-650P's fax line supplied?

It hinges on daily page volume. The MLT-D105L is rated for up to 2,500 pages: a busy line receiving around 30 fax pages a day gets a little over eighty days from a cartridge, while a line averaging 10 pages a day can run the better part of eight months before toner becomes a thought.

A long fax printed pale and patchy — has the cartridge died mid-document?

That is exactly what the end of a cartridge looks like on a fax machine: density falls away as the last toner spreads thin, often partway through a multi-page transmission. Fit a fresh MLT-D105L to restore full-black pages, and if any pages of that fax are illegible, asking the sender to retransmit those is the reliable cure.

What does a year of fax toner cost at a typical volume?

Take the 30-pages-a-day line: that is nearly 11,000 pages a year, so four to five cartridges annually — around $170 a year at $39.40 each, each page costing about 1.58 cents in toner. Light lines spend proportionally less; the arithmetic scales in a straight line.

Does the cartridge for the SF-650P also fit printers?

Yes. The MLT-D105L that feeds this fax machine is the same supply used by the Samsung ML-1910, ML-1915, ML-2525, ML-2525W, ML-2545 and ML-2580n printers and by the SCX-4600, SCX-4623F, SCX-4623FN and SCX-4623FW multifunctions — so a fax spare and a printer spare can be one and the same box.

Where should the spare cartridge live — beside the fax or in the storeroom?

Either, provided two conditions hold: it stays sealed until the day it is fitted, and it rests flat somewhere cool, dry and out of direct sunlight. Toner cartridges are patient stock — a spare bought with this one will be ready whenever the fitted cartridge finally fades.

What backs this cartridge if it misbehaves?

A 1-year warranty stands behind it, with free returns for a year from purchase. The process is described on our shipping and returns page, and the support team keeps weekday hours, 9 AM to 5 PM CST, Monday through Friday.

About This SF-650P Toner Cartridge

A single compatible MLT-D105L black toner cartridge for the Samsung SF-650P fax machine — $39.40, rated for up to 2,500 pages of received faxes at roughly 1.58 cents a page. The identical cartridge serves the ML-1910, ML-1915, ML-2525, ML-2525W, ML-2545 and ML-2580n printers and the SCX-4600, SCX-4623F, SCX-4623FN and SCX-4623FW multifunctions. It is dispatched from Illinois, Pennsylvania, Georgia or California and covered by a 1-year warranty with free returns for a year. The complete line is gathered under Samsung toner cartridges.