HP 738M 300-ml Cyan DesignJet Ink Cartridge (676M9A)

What this part is

Part 676M9A holds 300 ml of genuine HP Cyan and carries the cyan printhead with it. Of the two 738M cyan tanks we stock, this is the larger.

Which printers take this part

HP lists 676M9A against the T870 and XT870, and against the XT950 and XT950 MFP. It is not listed for the T850 or T850 MFP — those machines draw on the plain 738 range instead.

• HP DesignJet T870 / XT870
• HP DesignJet XT950 / XT950 MFP

What the cyan channel does on this platform

Cyan is a primary component of most color output, so it is consumed steadily across a typical school poster workload. The integrated printhead changes what you do about a cyan fault: banding confined to cyan is answered by the same part number you buy for ink, with no separate printhead to order.

Tank size and cost per milliliter

This 300-ml tank costs about 17% less per milliliter than the 130-ml cyan in the same 738M range, part A24VMA. The ink is identical between the two sizes; only the arithmetic moves.

Do not order this one by mistake

Watch for 676M6A: the 300-ml Cyan in the plain 738 range, one digit away. It is listed for the T870 and XT870 as well, but reaches down to the T850 and T850 MFP instead of up to the XT950. Which of the two a given T870 or XT870 should run is not something we assert — call 866-788-7900. Its neighbors 676M7A and 676M8A are 738 magenta and yellow; 676N0A and 676N1A are 738M magenta and yellow.

Specifications

Questions schools ask about this cartridge

Will 676M9A fit a T850?

HP lists this tank for the T870, XT870, XT950 and XT950 MFP only. For a T850 or T850 MFP, order from the plain 738 range, where the 300-ml cyan is 676M6A.

What is the difference between 676M9A and 676M6A?

Both are 300-ml genuine HP cyan, one digit apart. 676M6A is listed for the T870 and XT870 as well, but reaches down to the T850 and T850 MFP, while 676M9A reaches up to the XT950 and XT950 MFP. HP describes 676M9A as carrying an integrated printhead.

Should we buy cyan in 130 ml or 300 ml?

Per milliliter the 300-ml tank is about 17% cheaper. The smaller A24VMA suits a school that prints in short bursts.

Is this an HP cartridge or a refilled one?

Genuine HP, stocked under HP’s own part number 676M9A.

Ordering

Genuine HP part, stocked under HP’s own part number 676M9A. Not sure which part fits your machine? Call 866-788-7900 or see all genuine HP parts by number.