Q: once you place a cartridge on the pen, can you remove it and use a different cartridge; then later put this cartridge back on? Will the ink dry out or is there some kind of cap you can put on an open cartridge?
A:Yes, you could remove a partially used cartridge and "save" it for later use. Some people do that and put a piece of scotch tape over the cartridge opening, placing it in a zip lock bag in a drawer. The ink will still dry out over time, so I wouldn't recommend leaving a partially...view more used cartridge in storage for longer than a month or two.view less