Digital BW, The Print

John,

You wrote:

>On the Cone site is says that unlike some of their competitors, the Cone
>quad inks are alkaline (pH 9). It claims that other inks (without naming
>them) are acidic. Since this would clearly have archival implications, does
>anyone have some litmus paper around to check their MIS inks?

Lyson inks (and various private label Lyson inks) are the acidic ones, as
far as I know.  MIS, Generations, and Piezo, for example, have always been
said to be compatible with Epson inks, and thus not need flushing before
changing inks.  Lyson, on the other hand, due to the pH difference, is said
to require a good flushing out of the old inks before one changes between
Lyson and one of the others.

Paul