Epson Ultra-chrome inks - expiration date?

[gkroeger]

I have some cartridges in an Epson 7800 that have expiration dates of October 2007.  Prints still look good.  I am getting ready to make some important prints and wonder if there is anything that really expires in these cartridges... is this a sell by or use by date?  

Glenn

[freedda]

... is this a sell by or use by date?  Glenn
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I've been told that you can use the inks past the expiration date, and I just started using one that is at least two years out of date, and it's fine. You just have to give them a good shake before opening the package and installing.