HP 641A Black Toner Cartridge (C9720A) – Compatible Replacement | Castle Ink

This remanufactured black laser toner cartridge replaces the HP C9720A (HP 641A) for HP Color LaserJet 4600 and Color LaserJet 4650 Series printers. It comes with our 100% satisfaction guarantee and is ideal for home and office use. Features a new drum and all new components. Produces yield of up to 9,000 pages.

Compatible HP Printers
Color LaserJet 4600,Color LaserJet 4600dn,Color LaserJet 4600dtn,Color LaserJet 4600hdn,Color LaserJet 4600n,Color LaserJet 4650,Color LaserJet 4650n,Color LaserJet 4650dtn,Color LaserJet 4650hdn,Color LaserJet 4650n

Trust Castle Ink for your replacement HP toner - our 100% satisfaction guarantee means you can return the toner at no cost for a full refund if you're not completely satisfied.

Frequently Asked Questions

Will the C9720A toner cartridge void my HP printer warranty?
No. Under the U.S. Magnuson-Moss Warranty Act, HP cannot void your printer warranty solely because you installed a remanufactured (non-OEM) toner cartridge. The C9720A is designed to drop in as a direct replacement for the OEM part.

What page yield should I expect from the C9720A?
The C9720A toner cartridge is rated for approximately 9000 pages at standard 5% page coverage (ISO/IEC test conditions). That puts it in the high-volume category - a good fit for offices that print steadily through the week.

How do I confirm the C9720A fits my printer?
Match the cartridge number printed on your current HP cartridge to ""C9720A"" - if they match, this is the right replacement. You can also check the Compatible Printers section above, or contact our U.S.-based support team if you're unsure.

How much will I save versus a genuine HP C9720A?
At $74.95, the Castle Ink C9720A is about 52% less than the typical OEM retail price of $155.99. For users printing regularly, that saving compounds quickly across replacements.

When will my C9720A order ship?
Orders placed before 2pm ET ship the same business day from our U.S. warehouse with free standard shipping on orders over $50. Most U.S. customers receive their order in 2-3 business days. Expedited shipping is available at checkout.