Get professional-quality results with the HP 934XL Black Ink Cartridge High-Yieldfrom HP 934XL Black Ink Cartridge High-YieldRated to print approximately 1000 pages, this pigment-based ink cartridge provides impressive reliability, consistent page yields, and durable results for the OfficeJet Pro 6230 and OfficeJet Pro 6830 All-In-One Printers.

Up to 1000 Pages    Deliver Sharp Black Text    For the OfficeJet Pro 6230/6830    Pigment Based

Rely on original HP ink cartridges for outstanding prints page after page-they're engineered for reliable printing. Count on a better value for frequent printing with high-yield individual ink cartridges.

Represent your business best with original HP inks-designed to consistently deliver sharp black text.

Prints on plain papers using HP pigment black ink for HP OfficeJet printers stay legible for many years.

Rely on original HP inks for durable prints that resist water and last for decades.

Related Questions and Answers

Q: 1. what does the chroma optimizer mean for the black cartridges?

A: Chroma Optimizer levels the ink droplet height in order to enhance the glossiness and flatten the print surface, as well as expanding color gamut

Q: 2. Does it come with a case?

A: The Boox 6" Poke5 E-Ink Tablet (Black) BH #BOPOKE5LB does not come with a case.

Q: 3. Will these cartridges fit in Pixma TR4520 printer?

A: Yes, the Canon PG-245XL / CL-246XL Ink Cartridge Combo Pack with GP-502 Photo Paper BH #CACBIGPPCP is compatible with the Canon Pixma TR4520.

Q: 4. Does this stand have pegs for mounting on a rack?

A: Yes it does come with a 5/8" Stud , this can be hung by it.

Q: 5. What type of developer and fixer is needed ?

A: Rollei suggest the following chemicals for the Rollei Black Magic High Contrast Liquid Emulsion (300mL). For developer they suggest Rollei RPN, for universal application, Rollei RHC, for steeper grade. For the Fixer you can use Rollei RXA or RXN. We have the Rollei Black Magic High Contrast Liquid Photo Emulsion Kit which has all the necessary chemicals, BH #RO661231 (https://bhpho.to/3Amj0yO).

Q: 6. Does this support Kindle or Kobo software? Can I read from Kindle and Kobo libraries on this?

A: Good question, as it runs android 11 it should have the play store to download the Kindle app as well as the kobo app. Sadly I'm unsure how different the apps are to the devices.

Q: 7. On the box of the 10 color ink tank value pack that I have ,there is a green Cartridge but yours show a co cartridge what color is that ??

A: As far as I know, the only printer using pgi-72 inks is the Canon Pro 10. There is no green for that printer. My i9900 used 8 inks, one of which was green. The Pro 10 substituted gray and an extra black for green, plus the optimizer. You should never put in an ink that the printer doesn't call for and wouldn't know how to use.

Q: 8. I can use for printer in Thailand?

A: The Canon PGI-29 Chroma Optimizer Tank B&H # CAPGI29CO is compatible with the Canon Pixma PRO-1 Inkjet Printer. If you have that printer, you may use it with it anywhere in the world.

Q: 9. does it accept 720p24, 720p30 and frame rate convert up to 720p60 or 1080p60?

A: Hi,I have not tested 720p24, 720p30 myself. But i am pretty sure that it will upscale any source you give to your desire format.Its the best i have experienced in the cases of upscale or downscale in professional video.I use this in a TV station to convert appleTV to blackmagic SDI conversation. Hope this helpsRegards.

Q: 10. I want to use with blackmaguc atem 1 m/e production switcher, my atem is set to 1080/50i, will it work ?

A: We are using the Toolbox to scale the video from an Imac into the Atem Production Studio 4K. It works well at 720p. I have not tried 1080i as I would probably go to 1080P to overcome the interlace issues. If you are using it for live video you would notice a delay in the video. We are using it with video presentations so the delay is not noticeable.