ES Series
The ES Series page is the smallest in this catalog, and it is worth saying plainly why: this shelf serves a single model, the ES1624N MFP, and it lists exactly three cartridges for it — the three colors of one family. The 42127401 is yellow, the 42127402 is magenta and the 42127403 is cyan, all three in high-yield form. There is no long directory below and no wall of codes to decode; if this is your printer, the whole decision is which color has run out.
The same three codes lead a second life on the Oki C Series shelf, where they are sold for other Okidata color printers as well — a reminder that in this catalog a cartridge code, not the series name on the page, is what ties a cartridge to a machine. This page simply gathers the ES1624N MFP's colors in one place. What is not on this page is just as clear: no black cartridge is listed here, so if you are shopping for black, start from the model page rather than guessing from the color family.
Popular cartridges for ES Series
| Cartridge | Color / Type | Page Yield |
|---|---|---|
| 42127401 | Yellow, high yield | See product page |
| 42127402 | Magenta, high yield | See product page |
| 42127403 | Cyan, high yield | See product page |
Which cartridge should you buy?
Buy the color the printer is asking for — nothing about this shelf requires buying the three together. The codes run in a fixed order worth memorizing if you reorder often: 42127401 yellow, 42127402 magenta, 42127403 cyan. If more than one color is low, the three are listed individually here, and the same codes appear on the C Series shelf with their own packs. For anything beyond these three cartridges, the ES1624N MFP model page is the right starting point.
Chip, toner and everyday use
Each color cartridge carries its own chip and is tracked on its own level, so the machine can call for cyan while magenta still has life in it. Swap one color at a time, keep the others seated, and print a mixed color page afterward so the new cartridge settles. Because these are high-yield cartridges, a fresh one should run a long while in an office machine — all the more reason to keep the removed cartridge's code noted for next time. These compatibles are covered by a one-year warranty and one-year returns.
Frequently Asked Questions
Why does this page list only three cartridges?
Because this series page serves one model, and its shelf here is the three color cartridges of the 4212740 family. A short page is the honest page for a one-model series — everything listed is actually for the ES1624N MFP.
Which code is which color?
42127401 is yellow, 42127402 is magenta and 42127403 is cyan. The codes differ only in the last digit, so check that digit twice before ordering — it is an easy pair of cartridges to mix up.
Where is the black cartridge for the ES1624N MFP?
No black cartridge is listed on this page. Do not assume the black from another family fits; start from the ES1624N MFP model page, which is where this printer's confirmed supplies are gathered.
Do these cartridges fit other Okidata printers?
These three codes are also sold on the Oki C Series shelf for other color models, because the same code can serve more than one printer. Fit still follows the code and the model page together — a code listed for your model is the confirmation.