HP 746 Ink Cartridges – 300 ml, All 6 Colors & 6-Pack

Castle Ink sells remanufactured HP 746 300 ml ink cartridges: matte black (P2V83A), photo black (P2V82A), cyan (P2V80A), magenta (P2V78A), yellow (P2V79A) and chromatic red (P2V81A), plus a 6-color combo pack. They fit the HP DesignJet Z6 and Z6dr and the DesignJet Z9+ and Z9+dr PostScript printers in 24-in and 44-in widths. Each cartridge is a genuine OEM shell, cleaned, refilled and print-tested. Orders placed by 4 PM ET ship the same business day, shipping is free over $50, and every cartridge is covered by our 1-year 100% satisfaction guarantee.

Chip note: these cartridges keep the original HP chip and install like an original. The printer may show a non-HP or refilled-cartridge notice; confirm it on the front panel to keep printing. Printheads are separate parts and are not included.

Need the details first? Read What Ink Does the HP DesignJet Z6 Use?

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HP 746 Ink: Common Questions

Does HP 746 come in more than one size?

No. HP 746 is sold only as a 300 ml cartridge. The Z9+ also uses HP 747 for its gray, chromatic blue and gloss enhancer slots, which are separate cartridges.

Which printers use HP 746 ink?

HP DesignJet Z6 24-in, Z6 44-in, Z6dr 44-in, Z9+ 24-in, Z9+ 44-in and Z9+dr 44-in. HP 746 is not the same as HP 745 (DesignJet Z2600/Z5600). Our Find Ink by Printer page has a guide for each model.

Will remanufactured HP 746 cartridges work in my DesignJet?

Yes. Each cartridge is a genuine HP 746 shell with its original chip, cleaned, refilled and print-tested, so it installs like an original. The printer shows a notice when a refilled cartridge is installed; confirm it on the front panel to keep printing. Printheads are replaced separately. If a cartridge from us isn't recognized, contact us and we'll replace or refund it under our 1-year guarantee.

Single cartridges or the 6-pack?

The 6-pack (matte black, photo black, cyan, magenta, yellow and chromatic red) works out to about $100.99 per cartridge against $105.99 for singles, so buy it when you are replacing a full set. Buy a single when only one color runs out; each color is its own cartridge.

More help: What Ink Does the HP DesignJet Z9+ Use? · All HP ink cartridges · Find Ink by Printer. Updated October 2026 by William Elward, founder of Castle Ink (in business since 2005).