If not the printer may have expired. Repairs on these models is rare since repair exceeds replacement costs. Even a set of cartridges can be as much as a new printer.
Bob
Hi, I have a HP Deskjet 720c which recently ran out of ink, I purchased two new cartridges, one black, one color, but although the black is fine, the color won't print blue or yellow,
The shop changed the color cartridge for me, but the new one has the same problem. This makes me think it might be the printer.
I went through the clean heads / prime options, but it makes no difference.
The empty cartridge weighed 117 gms, the new one 156 gms, so I don't think the new one is empty
Anyone got any suggestions ?
Robert

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