HP 776 1-liter Yellow DesignJet Ink Cartridge (1XB08A)

Part 1XB08A is the 1-liter yellow in the HP 776 range for the Z9⁺ series.

Which printers take this part

The dr and Pro models take the same ink as the 24-in and 44-in: one part number covers the whole Z9⁺ series. HP lists this liter tank for that series, so if the badge on your machine reads anything else, call 866-788-7900 with the model before ordering and we will confirm the yellow it takes.

What Yellow does here

Yellow is one of the three process colors the Z9⁺ draws on for almost every job, mixed with cyan and magenta to build greens, oranges and skin tones rather than used on its own. Because the printer reaches for it on nearly every poster, it is one of the tanks schools keep a spare of — alongside matte black.

Tank size on this platform

Yellow for the Z9⁺ series comes in two tank sizes we stock: the 300 ml P2V79A and this 1-liter 1XB08A. A liter is the fewest cartridge changes per liter of ink, which is why schools running big print weeks standardize on it; the 300 ml tank suits lighter or seasonal use. Current pricing for both is shown on each product page.

Don’t order this by mistake

Yellow is 1XB08A, between magenta at 1XB07A and cyan at 1XB09A. The run reads magenta, yellow, cyan — not the CMY order most staff assume — so a number recalled one out delivers a different color at the same price. Size is the other thing to check: the 300 ml yellow for this machine is P2V79A in the HP 746 range, not a 776 number.

Specifications

Genuine HP part, supplied with HP’s own part number.

Questions schools ask about this cartridge

Do the dr and Pro models use different ink?

No. Every variant in the Z9⁺ series takes the same HP 776 parts, so 1XB08A is right for all four.

Can I mix 300 ml and 1-liter tanks in one printer?

Yes. The 300 ml HP 746 yellow, P2V79A, and this 1-liter HP 776 yellow are both listed for the Z9⁺ series, so you can move between sizes as your volume changes. Just keep every part number matched to the Z9⁺ series.

Can we order on a school purchase order?

Yes. School and district purchase orders are our standard way of doing business, and we can send a written quote with the part number on it. Call 866-788-7900.

Ordering

Purchase orders welcome from schools and districts — call 866-788-7900. Not sure which part fits your machine? See all genuine HP parts by number.