Printer question

[FS]

Say you've got a color cartridge for your printer, you took it out of its vaccuum-closed wrapper, but you didn't put it in your printer yet. Also, there's still a strip of plastic covering the printer heads.

Say you found out that your old color cartridge wasn't as empty as you thought it was. How would one go about preserving the above mentioned, new cartridge until it's needed?

Should it be kept cold, warm or at room temperature? With the printer heads turned up, or down? Or does it all not matter because the cartridge can't dry out with that strip of plastic covering the heads?