C5510n MFP

The Okidata C5510n MFP is the networked variant of the C5510 multifunction line — a color machine that prints, copies, scans and faxes for a shared office. It runs on the Type C6 cartridge set in high-yield 5,000-page capacities: cyan 42127403, magenta 42127402 and yellow 42127401. The black cartridge in this family is 42127404 — and to be plain about the shelf: this page stocks the three color cartridges, not the black, so black is ordered by that number separately.

Multifunction duty spends toner differently from straight printing. Copies pull color for whatever sits on the glass, incoming faxes and everyday documents lean on black, and a machine that scans to email all morning may print almost nothing. Watch which colors your office actually consumes — on an MFP the pattern is set by copying habits as much as by print volume.

Toner Cartridges for C5510n MFP

Cartridge	Color	Page Yield
42127403	Cyan	5,000 pages
42127402	Magenta	5,000 pages
42127401	Yellow	5,000 pages

The family's black cartridge, 42127404, is not among the listings on this page; the three high-yield colors above are what is stocked here.

Which cartridge should you buy?

Buy the color that is low — on this page that choice is refreshingly short, because only the three high-yield colors are sold and each is replaced on its own. At 5,000 pages per cartridge these are the long-interval versions, so a color change is an occasional event; keep a single spare of the color your copying habits drain fastest rather than a full second set. And when the black warning appears, remember its number is 42127404: it belongs to this same Type C6 family even though it is not stocked on this page.

Chip, toner and everyday use

Thin white lines running down the page on this machine usually blame the wrong part: they point to a dirty LED lens array, not to empty toner. Wipe the four LED arrays inside the machine gently with a dry, lint-free cloth and print a test page before ordering anything. The cartridges themselves are chipped and report their levels individually; when one is truly low, rock it side to side to redistribute the remaining toner and buy yourself time while the replacement ships.

Frequently Asked Questions

Which cartridges fit the C5510n MFP?

The Type C6 set: black 42127404, cyan 42127403, magenta 42127402 and yellow 42127401, each loading separately. This page sells the three colors; the codes run in reverse color order, so check the number on the cartridge you removed.

Why is there no black cartridge listed on this page?

Because the listings stocked here are the three high-yield color cartridges only. The printer's black is 42127404 from the same family — order it by that number, and do not substitute a black from another OKI family, which will not fit.

Any tips for cheaper color printing on an MFP?

Use draft or toner-save mode for internal documents and copies, and save full color for final output. Since each of the four cartridges is replaced separately, every page you keep in draft stretches the exact color it would have spent.