Frequently Asked Questions

How can you prove the magenta is the problem before ordering one?

Print a page that is nothing but a large red rectangle. Red is built from magenta over yellow, so it interrogates this cartridge directly: a solid, even crimson says the magenta is healthy, while orange, pink or streaky output convicts it. The test costs one sheet and settles the question more reliably than squinting at a photograph, where a dozen variables mix together.

Reds went orange but blues went purple — two cartridges failing at once?

Read the two symptoms separately. Orange reds point at magenta, because red starved of magenta falls back to its yellow base. Blues drifting purple point the other way, toward cyan, since purple is what blue becomes when cyan weakens and magenta dominates the mix. Colors fail one at a time and each leaves its own signature; replacing the cartridge the signature names beats swapping colors on a guess.

Why do the printer's own test pages help here?

Because they remove the file from suspicion. A driver setting, a wrong color profile or a badly exported PDF can all bend colors, but the machine's internal demo and supplies pages are generated inside the printer. If the internal page's reds are orange too, the cause sits in the supply — the 106R01078 — and not in anyone's software.

What does the high-yield rating buy a heavy machine like the DX?

Up to 18,000 pages between swaps, at standard coverage. The DX badge marks a high-spec configuration bought for serious color volume, and volume is what eats cartridges; a standard-capacity magenta would turn supply changes into a weekly ritual. At $92.31, the rated cost works out near 0.51 cents of magenta per page — the economy of the high-yield version shows up exactly on the machines that print the most.

Is one cartridge really all this listing contains?

Yes — one 106R01078 magenta, sold singly the way the printer consumes it. The Phaser 7400DX shares its magenta with the Phaser 7400, Phaser 7400DFX, Phaser 7400DN and Phaser 7400DT, plus the 7400N and 7400DXF; the plural "Cartridges" in the listing name is wording, not quantity, and the other three colors live on their own listings.

What support stands behind it?

A 1-year warranty plus free returns for a full year, on the terms of our shipping & returns page. Warehouses in IL, PA, GA and CA handle dispatch, help runs Monday to Friday, 9 AM to 5 PM CST, and the full range for this platform is listed on the Xerox supplies page.

About This Magenta Cartridge for the Phaser 7400DX

A single compatible high-yield magenta, 106R01078, $92.31, rated up to 18,000 pages, listed under the 7400DX name for the buyer whose machine wears that badge. The cartridge is the standard magenta for the whole Phaser 7400 family; what this listing adds is the diagnostic framing its owners tend to need — prove it is the magenta, then replace the magenta.