Figure 7.

Chloroform redeposition of toner. A loaded four-domain chip prior to any fluid flow or valving events (A) and after following completion of all fluid flow and valving events (B). Valves were sealed using chloroform for dissolution and redeposition of xerographic toner patches. Scanned images were acquired with an Epson Perfection V100 Photo desktop scanner (Japan). Bar plot (C) comparing initial and final hue values for each colored dye. Differences in initial and final hue values were negligible, suggesting successful valve closures via chloroform redeposition of xerographic toner.