how many pages will this 2x cartridge print

I don't know how many pages it will print, but I do know that it is substantially more than the regular HP950 cartridge. It is worth the price. The cost per printed page is much lower with the XL. I only buy the HP950XL in black and the regular HP951 color cartridges since I normally print in black. If you print a lot in color, the HP951XL color cartridges should be your choice.

Will this work with HP Office JetPro 8610?

NO! It will not work. HP sent through a firmware update in 2017. It's purpose was to deny use of third-party cartridges. It had the opposite effect. It rendered all of the current stock of 950 XL Black and 951 XL color HP cartridges in incompatible with the 8600 series printers. Check recent feedback before buying, you will see this is true! I have tried seven different cartridges, four blacks, and three color. All have the Z10 added to the product code. These cartridges simply do not work, and HP tech support will advise you it is time to buy a new printer! What does work in these older machines are cartridges refilled by a local Ink reseller. Save yourself time and hassle, it took me five hours with tech-support and one month to determine that HP simply wants to sell you a new printer!

what does the z10 on the package signify ?

The ink cartridges with the Z10 code have a new chip. They do not work in the 8600 printers, and based on other recent reviews they are incompatible with the entire 8600 SERIES of printers. Don't waste your time, these cartridges do not work. HP sent through a firmware update in 2017. It's purpose was to deny use of third-party cartridges. It had the opposite effect. It rendered all of the current stock of 950 XL Black and 951 XL color HP cartridges in incompatible with the 8600 series printers. Late in 2017 they sent through a firmware update that was supposed to cure the problem. It did not. There was also a patch issued by HP, but HP did not push the patch through to your printer. So these cartridges still do not work. Check recent feedback before buying, you will see this is true! I have tried seven different cartridges, four blacks, and three color. Four of those inks came direct from HP store, not Amazon. HP tried to tell me that Amazon sells old and defective cartridges in an effort to get me to buy direct from HP. This turned out to be a lie. All of the new ink cartridges have the Z10 product code. Look at the photos and you'll see that the current stock of Amazon HP 950 XL Black inks and 951 XL color ink cartridges all have the Z10 code. These cartridges simply do not work, and HP tech support will advise you it is time to buy a new printer! Surprisingly enough, what does work in these older machines are HP cartridges refilled by a local Ink reseller! They also cost less! I've been printing for 13 years and this is the first time I have ever use generic ink, but I have no choice as all HP ink cartridges have failed. Save yourself time and hassle, it took me five hours with tech-support and one month to determine that HP simply wants to sell you a new printer! They refunded my money, do not want their brand new cartridges returned, and sent me a $125 gift coupon code to use to buy a new printer! That was their solution. Disgusted!

Manufacturer	HP
Brand	HP
Model Number	CN045AN#140
Product Dimensions	4.5 x 11.48 x 10.01 cm; 73 g
Batteries	Unknown batteries required.
Colour	Black
Material Type	Ink
Number of Items	1
Size	1 Pack
Sheet Size	A4
Ink Colour	Black
Manufacturer Part Number	CN045AN#140
Item Weight	73 g

HP 950XL Black High-yield Ink Cartridge | Works OfficeJet Pro 251dw, 276dw, 8100, 8600 Series | CN045AN

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