









♻️ Print smart, print sharp — because your office deserves the best.
The HP 645A Black Toner Cartridge (C9730A) delivers up to 13,000 high-quality pages with reliable, leak-free performance. Designed specifically for HP Color LaserJet 5500 and 5550 series printers, it combines original HP engineering with 100% recycled content, making it a sustainable and trusted choice for professional environments.






| ASIN | B000077CF7 |
| Best Sellers Rank | #214,867 in Office Products ( See Top 100 in Office Products ) #5,324 in Printer Toner Cartridges |
| Customer Reviews | 4.0 4.0 out of 5 stars (36) |
| Date First Available | February 13, 2006 |
| Department | Default Category |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 3.94 x 3.94 x 3.94 inches |
| Item Weight | 6.4 pounds |
| Item model number | C9730A |
| Language | English |
| Manufacturer | HP |
| National Stock Number | 7510-01-518-9665 |
| Number of Processors | 1 |
| Page Yield | 13000 |
| Printer Model Compatibility | HP Color LaserJet 5500 |
| Product Dimensions | 3.94 x 3.94 x 3.94 inches |
| Series | toner |
| Special Feature | Original HP Toner Cartridge – exceptional reliability and consistent print quality^Page Yield: 13 000 per cartridge^Cartridges Per Pack:1^Compatible Printers: HP COLOR LASERJET 5500/5550^Recycle HP Original cartridges for free with HP’s Planet Partners Programme |
| UPC | 088698445402 |
| Voltage | 240 Volts |
P**P
Great Cartridge, best price I could find anywhere, too!
Worked great - just like an OEM toner cartridge should! I couldn't be happier! I have tried a few other non-OEM toner cartridges, with mixed (usually bad) results. Of course, this toner cartridge costs more than the rebuilt/refilled units, but it has already given me a few months of trouble free service, and I expect it will continue for the life of the cartridge.
C**T
Great product and cheaper than staples.com
I use these toners in my HP5500n workhourse which has never been rebuilt and has been working for 10yrs now almost everyday. I do shut it down during storms and on weekends to give it a break.
J**H
Expensive, but the real thing
I'm going to review all colors for our HP Printer right here. They are expensive, but we NEVER have problems with them and wouldn't consider anything but the real HP laser cartridges.
S**K
I did nearly as good with a generic knock-off
It's not worth the premium expense of an HP product. It's worth the research to find an equivalent generic, no-name replacement that gives you 80-90% of the life of a real HP cartridge. I never noticed a difference in print quality using a generic cartridge, but that doesn't mean you won't be disappointed going down that road. I had a good experience and got a little less duration out my alternative, saving 40%+ at the time.
J**N
It is huge disappoitment!
According to the picture on the website and the description (Sold by John Scott Kim) there should be a brand new cartridge with new pakaging. But the packaging design was not the same as described and the box was already opened and damaged. This was a huge disappointment and I will never purchase anything from this provider again.
R**Y
Five Stars
Great price, works fine.
S**M
It does the job !
Works great, arrived just as described. My only complaint was that it arrived without a UPS return label. But that's not a deal breaker, more of just an additional step for recycling.
D**N
It broke on my too soon.
When I bought this toner, it seemed to be HP brand, and new. But, after using it a while it poured toner all over the page. And cannot use it any more. I could only use it for less than 15% of its capacity.
S**A
Das Produkt ist für HP Laserjets 1100, 1100A, 3200, 3200M – NICHT für HP Laserjet 5000/5500. Die Ware geht leider zurück. Schade, dass das schon von anderen reklamiert und nicht korrigiert wurde.
C**K
Correspond au descriptif
T**R
Para el tipo de impresora donde se monta, no merece la pena instalar toner compatible y arriesgar la vida de la máquina. Además, en caso de problemas en la impresión del color en concreto, HP responde con la sustitución del toner, siempre que esté por encima del 30% de capacidad restante.
W**D
Mit diesem Produkt ist ein UPC / EAN verbunden, der falsch ist. Ich habe Amazon das mehrmals gesagt. Sie ignorieren es. Ich kaufe und kaufe ein C4092A anstelle des C9730A im Angebot.
S**O
La cartuccia (venduta come originale HP ed arrivata in confezione originale) è stata acquistata nel mese di dicembre 2023. L'ho provata a febbraio 2024, una volta finita quella in uso. E' risultata difettosa. Alla prima stampa, la stampante si è riempita di "polvere di toner nero". Come indicatomi dall'assistenza Amazon, trattandosi di un prodotto "consumabile" la garanzia è operativa nell'arco di 30 giorni dall'acquisto. Essendo trascorso tale termine, nessun rimborso per il prodotto difettoso (neppure il reso per verifica dell'articolo) più danno alla stampante che non so se riuscirò a risolvere. In conclusione un pessimo acquisto! Certamente mi guarderò bene dall'acquistare consumabili per l'ufficio su questo sito
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