Frequently Asked Questions

What does the 2 pack add over buying the single twice?

Two 106R01379 cartridges cost $123.81 together against $142.30 bought one by one — about $18.49 saved, with each cartridge at roughly $61.91 and the per-page cost easing from about 1.78 cents to about 1.55 cents over the pair's 8,000 rated pages.

Why do so many owners of this platform settle on two?

It is the smallest pack that solves the actual problem: one cartridge in the machine, one in the drawer. The low-toner warning stops meaning an urgent order, yet you are not stocking a shelf for a light-use printer either.

What exactly is in the 2 pack box?

Two compatible 106R01379 black cartridges, each rated at up to 4,000 pages — identical units, the same cartridge this line's single listing sells on its own.

Which printers do the pair serve?

The Phaser 3100MFP and the Phaser 3100MFP/S. One part number, 106R01379, covers both badges of the platform, so the spare in your drawer fits whichever of the two you run.

When should the second of the pair go in?

When output actually fades or the machine insists, not at the first low-toner notice — the warning is an early estimate, and swapping too soon throws away the tail of the first cartridge's life. Keep the second boxed, cool and dry until then.

How is each of the pair warranted?

Each carries the 1-year warranty independently, and returns are free for a year, per our shipping and returns page — a fault in one is settled on its own.

About This 3100 (106R01379) 2 Pack

Two compatible 106R01379 black cartridges from the bracket-numbered line: 4,000 rated pages each, 8,000 in total, $123.81 the pair. It is the modest stock-up — a working cartridge and its understudy — for the 3100MFP platform. Orders ship from our Illinois, Pennsylvania, Georgia or California warehouses, and the line's other sizes are collected on our Xerox toner cartridges page.