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Four rectangular magenta toner refill bottles in a row

Laser Tek Services

Laser Tek Services 4 Pack Toner Refill 645A Magenta

SKU CH-BJ90-1F79A

Four magenta toner refills with chips for HP Color LaserJet 5500 and 5550 series printers

  • Cartridges includedFour Pack
  • Ink or toner colorMagenta
  • Print coverage5%
  • For use withHP Color LaserJet 5500 HP Color LaserJet 5500HDN HP Color La
  • Magenta refill for HP 645A cartridges
  • Four-pack keeps spare toner ready
  • Works with HP 5500 and 5550 series printers
  • Includes chips for C9730A–C9733A recognition
  • Refill up to three times per cartridge

Four-pack magenta refill

This four-pack contains magenta toner refill bottles with chips for HP 645A cartridges. It is intended for offices that run HP Color LaserJet 5500 or 5550 series printers and want to refill existing cartridges rather than buy new ones. The kit supports models such as the 5500dn, 5500n, 5550dn and 5550dtn.

Consistent output over long runs

Each bottle is rated at 5 percent coverage, so page yield remains steady across high-volume print jobs. The included chips reset the cartridge counter, allowing the printer to track toner levels accurately through multiple refill cycles. This helps maintain colour consistency without unexpected interruptions.

Replaces single OEM cartridges

The pack replaces four separate OEM 645A magenta cartridges, reducing per-page cost for departments that print colour documents daily. It is not suited for users who need cyan, yellow or black toner in the same purchase, or for printers outside the listed 5500 and 5550 families.

How it compares

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

Price $114.99
Pricier than about 83% of the 15,190 comparable items (median $47.99).

Specifications

Product
Brand nameLaser Tek Services
Ink or toner colorMagenta
Performance
Print coverage5%
In the box
Cartridges includedFour Pack

Questions about this item

Does the 645A magenta toner run hot or draw extra power during long print runs?

Toner cartridges are passive components; they add no heat or power draw beyond what the printer itself uses.

What printer do I need already to use this 645A magenta refill kit?

It fits HP Color LaserJet 5500, 5500dn, 5550 and other models listed as compatible with HP C9733A cartridges.

Will the chip on this 645A magenta cartridge work in my older HP 5500 series printer?

Yes, the included chips are coded for HP C9733A so the printer recognises the cartridge normally.

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