Hey Shadowere,
First, you say you taped over the vent holes. As your cart shoots ink it needs this venting in order to equalize the pressure inside, otherwise the pressure inside the cart will be lower than outside preventing ink from leaving the printhead. Ink also acts as a coolant for the...
Hey Snowman,
You may want to peel the label off a cart you no longer need. There is a clear membrane that hold the ink in, if this is punctured the cart will leak.
When you make the fill hole you just need to be carefull not to go in too far and damage this seal.
Making a hole in this type of...
Hey Snowman
This is the method I use. Very easy and safer I feel then the method you linked to.
The only change I made was in step 3 it says to cut out the square from the label. I only cut on 3 sides then after I fill and glue, just put the flap back in place with a piece of clear tape...just...