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« on: 18 April 2016, 15:43:12 »
It's best not to let it run dry completely, but being human I do leave it too late sometimes! It doesn't seem to mind.
A couple of points: if you do have a cartridge that has run dry, don't stand the print head in a pool of water, it will suck up the water and dilute the ink/saturate the sponge. Instead, place the printhead on dampened filter paper (from the coffee maker?) and let it soften the dried ink. Then rub it over some tissue to clean it and check for ink flow.
When replacing the label over the filling holes, either position it accurately so as not to cover the "air-input" channels, or pin-prick over the filling holes. If the air input is blocked, you won't get much ink out of the printhead!
Ron.