We have 3 cyan cartridges that seem to have failed (one nearly empty, another 50ml down, the last brand new), the machine simply calls for replacement. I have updated the firmware, and verified there is no visible damage to either the ISS or the cartridges. I have replaced the ink tubes (which includes the ISS electronics) to address this symptom before, which worked for about a year, but ink tubes certainly last more than a year. What's the root cause of the problem, and how can it be addressed permanently?
#1 Hi, this could be ink level sensor problem.
It seems to be a hardware issue. In order to be able to solve this type of problem you need to contact HP Suport.
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