Digital BW, The Print

Hi there,

I recently installed a Piezography CIS for the Epson 1400.  At some 
point I would like to try out the MIS EB-6 inkset as a comparison; I 
would probably swap in pre-filled carts before committing to 
purchasing bulk ink.

My question: are there any known chemistry issues when mixing these 
two inksets that would require a thourough flushing before installing 
the EB-6 inks, or could I simply run purging cycles to get rid of the 
Piezography inks?

Thanks,
Jens