Frequently Asked Questions

One cartridge in the printer, one on the shelf — is that the idea behind this two-pack?

Exactly that. The two-pack is built around the simplest form of insurance: when the working cartridge fades, its replacement is already in the cupboard, and the ML-1640 is back in service within minutes instead of waiting on a delivery. For a machine whose printing matters day to day but whose volume does not justify a deep stock, two is the quantity that matches the risk.

What does the pair cost per cartridge?

The two-pack is $80.56, so each MLT-D108S works out at $40.28 against $49.52 bought singly — a saving of $18.48 across the pair. Together the cartridges carry 3,000 rated pages, bringing the running cost down to roughly 2.68 cents a page from the single-cartridge figure of about 3.3 cents.

Are both cartridges the ML-1640's own supply?

Yes — both units are the MLT-D108S, the code named in this listing's title and the same supply carried by the ML-2240 and ML-2241 listings in this family. There is no sorting to do when the box arrives: either cartridge fits the ML-1640, so the spare is a genuine spare, not a near-match.

Our ML-1640 keeps running dry mid-job — does keeping a spare actually change that?

It changes the ending. A cartridge still fades at the same point in its life, but with the second unit on the shelf the interruption lasts as long as a cartridge swap — a couple of minutes — rather than the length of a shipping wait. The discipline is in the reorder: when the spare goes in, that is the moment to order the next pair, so the shelf is never knowingly empty.

How is the two-pack covered?

Each cartridge carries a one-year warranty against defects, and returns are free for a full year from purchase; the full wording is on the shipping and returns page. The cover applies per cartridge, so a problem with one unit never obliges you to return the other.

Where is the pack dispatched from?

From whichever of our IL, PA, GA and CA warehouses is best placed for your address, as one compact parcel. Support, should you need it, runs Monday to Friday, 9 AM to 5 PM CST — and because both cartridges travel together, the shelf is stocked in a single delivery rather than two.

About This ML-1640 Two-Pack (MLT-D108S)

A working cartridge plus its ready replacement: two compatible MLT-D108S units for the ML-1640, 3,000 rated pages in total at $80.56 — $40.28 apiece, about 2.68 cents a page — within our wider Samsung range. A year's warranty and free returns for a year cover both cartridges in the box.