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
Four black toner cartridges in a rectangular box

Laser Tek Services

Laser Tek Services C4127X (27X) Black Toner Cartridge 4 Pack

SKU CH-CE26-AAYAS

Four-pack of black toner cartridges for HP LaserJet 4000 and 4050 series, each yielding approximately 10000 pages at 5% coverage

  • Cartridge QuantityFour Pack
  • Cartridge ColorBlack
  • Compatible ProductsHP LaserJet 4000, 4000n, 4000se, 4000t, 4000tn, 4050, 4050n,
  • Approximate Page Yield10000 Pages
  • Coverage5%
  • Print up to 10000 pages per cartridge at 5% coverage
  • Four-pack bundle reduces replacement frequency for high-volume printing
  • Compatible with HP LaserJet 4000 and 4050 series printers
  • Built to ISO 9001 and ISO 14001 factory standards
  • New aftermarket toner delivers crisp black output from first page to last

Compatible HP 4000 and 4050 Series

This four-pack of Laser Tek Services C4127X black toner cartridges is built for offices running HP LaserJet 4000 and 4050 series printers. Each cartridge is new and manufactured to ISO 9001 and ISO 14001 factory standards. The set suits high-volume environments that need reliable, cost-effective replacements for daily document printing.

10 000-Page Yield at 5 % Coverage

The decisive specification is the rated yield of approximately 10 000 pages per cartridge at the industry-standard 5 % coverage. Buyers whose typical print jobs exceed this coverage density will see fewer pages per unit and should plan reorder cycles accordingly. This figure determines whether the pack matches your monthly output requirements.

Thermal and Power Characteristics

As toner consumables, these cartridges add no active cooling, fan noise or electrical draw to the printer. Normal operation relies entirely on the host device’s existing fuser and power supply, so thermal load and acoustic profile remain unchanged from OEM supplies. No additional power infrastructure is required.

Highlights

  • Print up to 10000 pages per cartridge at 5% coverage
  • Four-pack bundle reduces replacement frequency for high-volume printing
  • Compatible with HP LaserJet 4000 and 4050 series printers
  • Built to ISO 9001 and ISO 14001 factory standards
  • New aftermarket toner delivers crisp black output from first page to last

Specifications

BrandLaser Tek Services
ModelC4127X
Cartridge QuantityFour Pack
Cartridge ColorBlack
Compatible ProductsHP LaserJet 4000, 4000n, 4000se, 4000t, 4000tn, 4050, 4050n, 4050se, 4050t, 4050tn
Approximate Page Yield10000 Pages
Coverage5%

Questions about this item

What does the 10000-page yield mean for daily printing on an HP LaserJet 4050?

At the standard 5% coverage test, each cartridge yields about 10000 pages; typical office documents with more graphics will reduce that figure, while lighter text pages may extend it.

Which printer interface or standard does the C4127X cartridge follow for the HP LaserJet 4000 series?

The cartridge is built to the mechanical and electrical specification used by the HP LaserJet 4000 and 4050 families, so it seats and communicates exactly like the original HP 27X supply.

What physical space is needed to install one C4127X cartridge in an HP LaserJet 4000tn?

Each cartridge matches the standard HP 27X form factor, sliding into the printer's toner bay without extra brackets or adapters.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.