Storing open inkjet cartridges
Many inkjet printers use multiple ink cartridges and with some of those, the ink tanks must be changed depending on what type of printing is taking place. For instance, many HP inkjets have normal printer ink cartridges and photo cartridges. When photo printing is happening, the tanks must be switched and then switched back when the photo printing is done. While many switch back and forth every day, some may only switch to photo printing very rarely. It’s important to know what to do with your ink cartridge when not in use so that it still works properly when it’s time to print again. Ink cartridges can dry up if stored improperly, and no one wants to waste money.
There are two easy ways you can store these Epson ink cartridges.
For the first and easiest way, you will need a zip-sealed sandwich bag and a sponge or towel. Place the ink cartridge into the sandwich bag. If you have multiple cartridges, then you need multiple bags and sponges. Each cartridge must be kept separately. Take the towel or sponge and wet it, then wring out the water so it is damp and not dripping. Now, place the sponge into the sandwich bag with the ink cartridge. Seal the bag and then place it in a dark and cool place until it’s time to reuse it again.
The second way is a little more detailed than sticking the cartridge in a bag. For the most part, every step is the same, but instead of using a zip-tie bag, you should use a plastic food container with a lid. Here’s the difference—if storing a color cartridge, store it with metal contents facing down. If storing black, store it with metal facing up.
Make sure all cartridges are stored in a cool place, and check the moisture of the sponge or towel everyday—if it isn’t wet, remoisten it for best results.

