What do I do when Ive filled a cartridge but it doesnt print?
If the cartridge has been filled and does not print, hold a piece of tissue against the print head to test if there is ink flowing to the print head. If the tissue does stain, but printing does not ensue, it is likely that the circuit in the cartridge has failed and is no longer useable. Regular topping up of the cartridge can minimize this problem. I have a Hewlett Packard printer, which I have been refilling with ink purchased from JR Inkjet. The single black cartridge is filled with black ink and the bottom air hole covered with Sellotape. By putting the plastic plug in the top and allowing a small amount of ink to leak out, does this then create a vacuum in the inner top section of the cartridge to hold the ink in and stop it leaking out? If this is correct, does this mean that there must be no gaps around the plug for air to seep in? You are correct, the hole that is drilled in the top of the cartridge needs to be completely airtight. Sometimes when the hole has been drilled sligh
