Digital BW, The Print

"Mike Johnston" <wpajohnson@...> wrote:
>
> I have an Epson 280 with the Paul Roark recommended MIS inks
> (4 oz bottles).
> There is now very little difference between groups of inks.
> [Black] {Cyan, Magenta}  {Yellow, Light Cyan, Light Magenta].
> 
> Do these inks have a shelf life? I have had the ink for over a year.

All pigment inks must be agitated occasionally.  I always agitate bottles before loading carts.  It's possible there has been some settling.  I think MIS usually puts expiration dates on its inks.  If one just looks at the inks in the bottle they all look black. 

Paul
www.PaulRoark.com