MP700 from waiste ink tank full error to Put in cartridge error

bobmax

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Hello, got a used MP700 with waiste ink tank full. Disassembled and cleaned everything as found on some topics. Did a reset but then I got "wrong cartridge" error. As printer had not been used for some months cleaned printhead by soaking it in ammonia solution, demin water and put it back in with new ink cartridges.
Now I've always "put in cartridge" error and printer is still blocked.
Should I go for a new print head ? What can i do else ?

Thanks in advance for your help.

Regards

marc
 
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