Usually refilling a cartridge does not and should not involve air getting into the ink path. I'm wondering if ink is leaking out the outlet when the carts are removed. I've had leaky carts where I have to insert a plug in the outlet to avoid the problem. See https://www.inksupply.com/product-details/pn/MIS-RIVET-50.html?printerID=0
Paul
On Sat, Aug 15, 2015 at 5:52 AM, ascherjim@... [DigitalBlackandWhiteThePrint] <DigitalBlackandWhiteThePrint@yahoogroups.com> wrote:
I've reported earlier that usually after my 1400 printer goes into an automatic nozzle cleaning (or after I've replenished ink), the test shows ink gaps. Rather than proceed manually with further head cleanings, I've now learned to wait a number of hours for apparently the air pockets in the lines to clear. This practice (patience) I've now observed works every time. Frustrating.