Hewlett Packard
Compatible HP 4600dn (C9721A) Toner Cartridge Cyan
- Page Yield:
- Color: 8000
- Availability:
- In Stock
- Shipping:
- Free Shipping
- Page Yield:
- Color: 8000
- Availability:
- In Stock
- Shipping:
- Free Shipping
- Compatible Printers
- Color LaserJet 4600
- Color LaserJet 4600dn
- Color LaserJet 4600dtn
- Color LaserJet 4600hdn
- Color LaserJet 4600n
- Color LaserJet 4650
- Color LaserJet 4650dn
- Color LaserJet 4650dtn
- Color LaserJet 4650hdn
- Color LaserJet 4650n
- LaserJet 4600
- LaserJet 4600dn
- LaserJet 4600dtn
- LaserJet 4600hdn
- LaserJet 4600n
- LaserJet 4650
- LaserJet 4650dn
- LaserJet 4650dtn
- LaserJet 4650hdn
- LaserJet 4650ni>
- i>
- Color LaserJet 4610
- Color LaserJet 4610N
- HP 641A
- Specifications
- SKU:
- CS-HP-4600dn-C
- Printer Brand:
- Hewlett Packard
- OEM Number:
- C9721A
- Ink Color:
- Cyan
- Page Yield:
- Color: 8000
- Printer Type:
- Laser Cartridge
- Condition:
- New Compatible
- Description
- Reviews


Embark on a vibrant printing journey with the HP 641A Color LaserJet Series, featuring a diverse lineup of printers designed to meet various printing needs. The Color LaserJet 4600, 4600DN, 4600DTN, 4600HDN, and 4600N models offer reliable color printing solutions, while the Color LaserJet 4650 series delivers enhanced performance and versatility. Experience superior print quality with the C9720A Black, C9721A Cyan, C9723A Magenta, and C9722A Yellow toner cartridges, compatible with the HP 641A toner cartridge and toner cartridge options. These cartridges ensure consistent and reliable prints for all your documents and projects, from everyday printing to professional presentations. Invest in a printing solution that meets your business requirements with the HP 641A Color LaserJet Series, known for its reliability and performance. Whether it's the Color LaserJet 4600 series, 4650 series, or 4610 series models, these printers deliver exceptional print quality and versatility for various printing needs.
Frequently Asked Questions
What part number should I match for the 4600dn's cyan?
C9721A — the cyan of the HP 641A family. The cartridge in the machine will have it on the label, and this compatible replacement is $76.81. Match that number and the rest of the listing falls into place.
Our 4600dn is an older machine. Is this still its cartridge?
Yes. The Color LaserJet 4600dn was built around the 641A family and has not changed its appetite since. Age of the printer does not alter which cyan it takes — only how glad it is to see a fresh one.
How many pages will it print?
Roughly 8,000 pages at standard coverage. A 4600dn in a reports-and-charts role will land near that figure; one doing photo-rich handouts will land below it. Either way, the rating is the fair yardstick for planning the next order.
There is a faint cyan haze along one edge of every page. New cartridge time?
A one-color haze or edge shadow is a cartridge-level symptom — toner escaping where it should not, or a worn internal surface. Because it appears only in cyan, replacing this cartridge is the diagnostic and the cure in a single step.
Do I need to touch the printer's network settings after swapping?
No. A cartridge change is purely mechanical. The 4600dn keeps its network identity, its queue and its defaults; it simply recalibrates and carries on with the work already sent to it.
What support and returns come with the purchase?
A 1-year warranty and 1-year free returns, with help available Monday–Friday, 9 AM–5 PM CST and fulfilment from IL, PA, GA and CA. The broader HP compatible range is gathered on our brand page for the rest of the machine's needs.
About This 4600dn Cyan Cartridge
Plenty of 4600dn printers are still quietly earning their floor space, and this C9721A cyan — rated about 8,000 pages, priced at $76.81 — is how they stay color-honest. Blues come back to full strength the moment it seats. For transit times and the return process on legacy-machine supplies, see our shipping and returns page.

