Refilling Lexmark's no 31 and flooding

[anon_private]

Hi,

I recently refilled no. 31. The black appears to be flodding.

I put a couple of cc's less than the maximum volume to take account of of any ink that remains (black and colours).

I don't think that I have overfilled the cartridge (no sign at filling). Any idea what has cuased the black to flood. Could it be air bubbles?

How advisable is it to store the cartridge with the printhead downwards (keep it moist)?

This cartridge came with a clip for storage, should the clip keep the head moist? It is made of plastic, no other materials present.

Thanks