I have tried two (2) different new printheads (K) and the system keeps giving me the message that there is no ink and I need to replace the new with the old cartridge. Please advise.
FYI: The L7590 doesn't have any tape on either the cartridge or the printhead.
Right couple of things here...
1. The printheads in the L7590 are either K/Y (black/yellow) or C/M (cyan/magenta)... There's no single black printhead unless of course this is not an L7590 we're discussing here.
2. The cartridges ARE individual with K, Y M C (Black, Yellow, Magenta and Cyan).
It's likely that the printer has one of the following faults.
If the problem is the latter then you need to get the printer serviced and/or repaired at a service center.
If it's the former you should be able to fix it yourself.
If you're using non OEM (ie: not by HP) cartridges I'd recommend getting a new OEM/HP one to test before you go for a service as some cartridges are just poorly filled and/or designed.
Hope that helps.
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make sure you took the tape off the bottom of the cartridge
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