It sounds like your needle is not long enough to reach well inside the tank. Mine butts up to the prism. As the ink goes into the tank so only air should flow back through the annular gap round the needle. If you have ink coming out of the port you must be injecting into the foam.binkie said:My problem is that I am not able to fill the ink chamber more than half before ink starts to come out of the vent maze, the ink outlet, and the hole I drilled by the ink outlet. Pressure seems to build up when ink is injected into the ink chamber. How do I get the ink chamber full so that the ink monitoring will be accurate when I reset the chip?
Binkie