To top
- HOME /
- INK, TONER & PAPER /
- TONER CARTRIDGES /
- HP 645 TONER CARTRIDGES /
- HP 645A BLACK ORIGINAL LASERJET TONER CARTRIDGE, C9730A
Save up to 59% on select HP tech, FREE shipping storewide.
24 months special financing on purchases of $1,500 or more with the HP Credit Account.+
on our best weekly deals.
SHOPGet the best results from your HP printing system. HP Smart technology[1] and chemically-grown toner formulas in HP 645A LaserJet Toner Cartridges work with your printer to deliver accurate, consistent color and reliable, cost-effective performance.
HP.com will accept returns or exchanges for this product up to 30 days from the date of delivery. A 15% restocking fee may apply. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.
Get the best results from your HP printing system. HP Smart technology[1] and chemically-grown toner formulas in HP 645A LaserJet Toner Cartridges work with your printer to deliver accurate, consistent color and reliable, cost-effective performance.
Take pride in high-quality prints with Original HP Toner.
The choice you can trust to help avoid reprints and wasted supplies.Choose Original HP Supplies, designed for reliability and consistency.
Outstanding color
Consistently accurate color and precise images with HP chemically-grown tonerOptimal print quality with new image mode feature[3]
Reliable, cost-effective
Cost-effective operation with all-in-one HP toner cartridgesHP Smart technology[1] tunes particle charge for reliable resultsRated A+ for service and reliability, PC Magazine August 2003
HP.com will accept returns or exchanges for this product up to 30 days from the date of delivery. A 15% restocking fee may apply. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.
To place pre-orders on a customers behalf, you need to punch-out as a customer before proceeding to checkout.
PUNCH-OUT CUSTOMERAfterwards, you will be taken to our checkout directly. If the customer has other items in their cart, they will still be there after the pre-order checkout process is completed.
If you are also purchasing the hardware for this carepack now, please add the hardware to your cart first!
When you select items from your cart, the corresponding number of Care Packs is added. To add a Care Pack to fewer items, please place separate orders for any items you do not want to cover with a Care Pack.
Can't find what you need?
Please call Order Support at 1-866-635-0242
Some products utilize the keyboard shortcut 'Ctrl + Alt + S'; the product information will appear after a short delay. If that doesn't work, this information can also be found on your bar code stickers, typically located on the back of your product.
NotebooksSome products utilize the keyboard shortcut 'Fn + Esc'; the product information will appear after a short delay. If that doesn't work, this information can also be found on your bar code stickers, which may be located behind the battery.
Printers (Both HP and Samsung)Look for the bar code stickers on your printer.The Serial number on a Samsung printer can be used wherever an HP serial number is requested. Samsung printers refer to a 'product number' as a 'model code' designated with 'M/C', and typically start with 'SL-_'.
TabletsYour product information is typically located on the back or bottom edge of your product.
Offers subject to change, not combinable with all other offers, and exclusions may apply, while supplies last. HP may impose a purchase quantity limit (for example, 3 units per order). Taxes, shipping, and other fees may apply as applicable. HP reserves the right to cancel orders arising from pricing or other errors. Prices, specifications, availability, and terms of offers may change without notice. Price protection, price matching or price guarantees do not apply to Intra-day, Daily Deals or limited-time promotions. These terms apply only to products sold by HP.com; reseller offers may vary. Items sold by HP.com are not for immediate resale. Orders that do not comply with HP.com terms, conditions, and limitations may be cancelled. Contract and volume customers not eligible.
HP’s MSRP is subject to discount. HP’s MSRP price is shown as either a stand-alone price or as a strike-through price with a discounted or promotional price also listed. Discounted or promotional pricing is indicated by the presence of an additional higher MSRP strike-through price.
Microsoft and Windows are US registered of Microsoft Corporation. Ultrabook, Celeron, Celeron Inside, Core Inside, Intel, Intel Logo, Intel Atom, Intel Atom Inside, Intel Core, Intel Inside, Intel Inside Logo, Intel vPro, Itanium, Itanium Inside, Intel Evo, Intel Optane, Iris, Itanium, MAX, Pentium, Pentium Inside, vPro Inside, Xeon, Xeon Phi and Xeon Inside are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries.
Not all features are available in all editions or versions of Windows. Systems may require upgraded and/or separately purchased hardware, drivers, software or BIOS update to take full advantage of Windows functionality. Windows is automatically updated and enabled. High speed internet and Microsoft account required. ISP fees may apply and additional requirements may apply over time for updates. See http://www.windows.com.
Earn HP Rewards on select products from the following categories: Laptops, Desktops, Printers, Business PC’s, select Accessories, and select Ink, Toner & Paper. Exclusions apply, and program membership required. See details HP Rewards
The personal information you provide will be used according to the HP Privacy Statement
✦America’s most trusted printer brand: Based on 2022 semi-annual internal brand surveys commissioned by HP.
*2 years of ink included with the best print quality every time: Based upon 150 and 200 pages per month of HP Smart Tank customers’ usage. Actual yield varies considerably based on content of printed pages and other factors. Average yield based on ISO/IEC 24711 or HP testing methodology and continuous printing. Some ink from included bottles is used to start up the printer. For details, see: www.hp.com/go/learnaboutsupplies. Print quality tested on everyday paper. Compared to the majority of in-class, 3:1 and 4:1 duplex, wireless A4 ink tank printers under $552 USD. Printers selected by market share as reported by IDC Quarterly Hardcopy Peripherals Tracker – Final Historical CYQ2 2023. Claim based on publicly available information as of September 2023 and Keypoint Intelligence hands-on testing and study in September 2023 commissioned by HP. Details: www.keypointintelligence.com/hpbesteverydayprintquality.
**Copilot in Windows (in preview) is available in select global markets and will be rolled out to additional markets over time. See microsoft.com/en-us/windows/windows-10-specifications for more information.
+Deferred Interest, Payment Required Plan: Interest will be charged to your Account from the purchase
date if
the promotional plan balance is not paid in full within the promotional period. Minimum payments are required for each
Credit Plan. Minimum payments are NOT guaranteed to pay the promotional plan balance within the promotional period.
You may have to pay more than the minimum payment to avoid accrued interest charges. Valid for single transaction
only. Gift cards do not qualify for promotional plans. Qualifying purchases will automatically be placed on a
promotional plan. If purchase qualifies for more than one plan, it will be placed on the qualified plan with the
longest promotional period. As of February 2025, terms for new Accounts: Purchase APR of 35.99%. Minimum interest
charge is $3 in any billing period in which interest is due. A fee of $2.99 per month may apply for each paper billing
statement mailed to you. You can avoid this fee by enrolling in paperless statements. Existing Account holders: see
your credit card agreement for Account terms.
Credit account offers are subject to credit approval.
HP Credit Accounts are issued by Comenity Capital Bank, a Bread Financial™ Company.
*HP.com exclusive product! This product is only available for purchase on HP.com US Store and HyperX.com. You will not find it at any other authorized HP retailers. SKUs included: 67J25AA#ABA, 4P5L2AA, 4P5L3AA, 7P5J2AA, 4P5E3AA, 67J23AA, 4Z7X3AA, 4S7T2AA, 683M4AA, 67J22AA. Availability may be limited and subject to change. Prices and promotions may vary between HP.com US Store and HyperX.com. HP disclaims all liability for products sold by unauthorized third-party sellers.
©2025 HP Development Company, L.P. The information contained herein is subject to change without notice.
Update payment method for ?
If you would like to cancel your subscription, please select "Cancel Subscription" below.
Please note that once you cancel your subscription, there is no reactivation option.
If you are canceling within the first 30 days, you will receive a full refund to the payment method on file.
If you are canceling after the first 30 days, you will be charged a termination fee according to the Terms of Service, to the payment method on file and a full refund of the current monthly fee, less any claims paid, or the cost of repairs made on your behalf, well be provided as long as the cancelation occurred at least two (2) days prior to the end of the current billing cycle. cancelations made within 2 days or less will not receive a refund.
