We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black toner refill kit in white box with HP 27X 4127X labels

Laser Tek Services

Laser Tek Services Black Toner Refill Kit for HP 27X C4127X 27A C4127A LaserJet 4000 4050

SKU CH-7187-FANKY

Refill kit restores HP 27X C4127X cartridges for up to 10000 pages at 5% coverage

  • Cartridges includedSingle Pack
  • Ink or toner colorBlack
  • Print coverage5%
  • For use withHP C4127X 27X C4127A 27A LaserJet 4000 4000n 4000se 4050 405
  • Refill up to three times to cut cartridge waste
  • Patented toner powder delivers crisp black text and graphics
  • Step-by-step instructions and all materials included for easy refilling
  • Made in ISO 9001 and ISO 14001 certified facilities
  • Yields up to 10000 pages at 5% coverage

Compatible HP LaserJet printers

This refill kit is designed for HP LaserJet 4000, 4000n, 4000se, 4050 and 4050n models. It works with HP 27X C4127X high-yield and 27A C4127A standard cartridges. The kit includes patented black toner powder and all materials required for a straightforward refill. Users can extend cartridge life and reduce waste in home or office environments.

Suited for cartridge reuse; not for new units

The product targets owners of compatible HP cartridges who want to refill and reuse existing units up to three times. It suits buyers aiming to lower printing costs and minimise environmental impact. It is not for users who need a brand-new cartridge or who lack an empty 27X or 27A shell. Printers outside the listed LaserJet series are not supported.

Yield and coverage headroom

Each refill delivers up to 10000 pages at 5% coverage, matching the original high-yield specification. Actual output varies with page content, density settings and cartridge condition. The kit provides enough toner for a full high-capacity cycle. Users printing heavy graphics or dense text will reach the limit sooner than the rated figure.

How it compares

Measured against everything we stock in Compatible Laser Toner, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 92% of the 15,190 comparable items (median $47.99).

Specifications

Product
Brand nameLaser Tek Services
Ink or toner colorBlack
Performance
Print coverage5%
Compatibility
For use withHP C4127X 27X C4127A 27A LaserJet 4000 4000n 4000se 4050 4050n
In the box
Cartridges includedSingle Pack

Questions about this item

Do I need an empty HP 27X or 27A cartridge to use this refill kit?

Yes, the kit refills HP C4127X (27X) or C4127A (27A) cartridges; you must supply the empty cartridge yourself.

Will refilling my HP 27X cartridge work reliably in an older LaserJet 4000 or 4050 printer?

The toner is formulated for HP LaserJet 4000, 4000n, 4000se, 4050 and 4050n models, so refilled cartridges perform as expected in those printers.

How can I confirm the refill is working correctly after I install the cartridge?

Print a test page; you should see crisp, consistent black text and graphics at the rated 5% coverage.

More in Compatible Laser Toner

Similar items