Frequently Asked Questions

• What is in this set of 9?

  The box holds: C2P23AN (1,000 pages), C2P24AN (825 pages), C2P25AN (825 pages), C2P26AN (825 pages). Each cartridge is individually sealed.

• Which printers does this set fit?

  The set fits OfficeJet 6812, OfficeJet 6815, OfficeJet Pro 6220, OfficeJet Pro 6230 and 3 more. The complete verified list is in the Compatible Printers section on this page.

• Which number is the black — 934 or 935?

  In this family the black is the HP 934 and the three colors are HP 935. The two numbers are one system — a printer that takes one takes the other.

• Does every cartridge in the set carry a chip?

  Yes. Every cartridge in the set carries a new compatible chip that reports its own ink level to the printer.

• Does the set work out cheaper than buying singles?

  Yes — the set is priced below the same cartridges bought one by one, and one box restocks every slot at once. Check the per-cartridge yields above against your usage.

• Do I have to install the whole set at once?

  Yes. Open and install only the color the printer asks for, and keep the rest sealed — they store fine for when their turn comes.

• The printer is showing a warning after I installed it — what now?

  Acknowledge the message, reseat the cartridge until it clicks and restart the printer. Most warnings are a one-time notice that a non-original cartridge was fitted.

• Is this a genuine HP set?

  No. It is a Clever Supplies compatible set built to the original HP specifications and covered by our lifetime warranty. It is not manufactured by HP.

• What does the AN at the end of the code mean?

  It is HP's regional suffix: AN codes are the North American version. These printers are region-matched, so a cartridge coded for another region is rejected even though it looks identical — every cartridge here is the AN version.

• What happens if a single cartridge from the set fails?

  Contact us with the color and the problem — the lifetime warranty covers each cartridge in the set individually, so a single faulty cartridge is replaced on its own.

• Which cartridge in the set runs out first?

  It depends on what you print: text-heavy use drains the black first, photo and graphics work drains the colors. Each cartridge reports its own level, and the spares from this set store sealed until their slot asks for them.

• How do I keep the rest of the set until I need them?

  Sealed, upright and at room temperature, away from sunlight. Install each cartridge only when the printer asks for that color.