Yellow cartridge does not print despite being full.
Have taken cover off to view ink hoses. Have removed cartridge and tried to syringe air down the hose only to find the ink retracts again once the air pressure stops so I can only assume there is a firm blockage either along the hose or at the print head end. I can't work out how to get inside the print head though so am a bit stuck.
What should my next step be?
This thread is now locked and can not be replied to.