Hi GuysA bit of an odd question, but does anyone know if there's a way of testing printer ink for Dye or Pigment type?I'm looking into a CISS system for printing my manuals (i have loads).Obviously I don't want to get the wrong kind.I have an HP Office Jet Pro 8000

That is a very good printer you have there. And it uses pigment based inks which are generally better for text, documents, hence for manuals. Dye based are usually better for photos. As far as I know there are no dye based inks available for that model so the only way you could compare is print a few pages off your printer and print the same pages on say an HP "Photosmart" printer which uses dye based. But I think you will be very please with results printing manuals from yours. Even with photos or graphics embedded in the manuals. Remember, inks are half the solution - good paper is the other half. Don't skimp on typical big-box or office supply store bargain paper (usually 20lb.) Cheap paper can actually damage your printer in the long haul as wood fibers will break into the air while printing and begin to wrap around rollers and into areas you don't want. For double sided printing I would suggest no less than 28lb. For single-sided no less than a good quality 24lb. For me I only use 28lb. but I like firm, very nice looking manuals when I print with no bleed through. Covers, I use either 32 or 48lb.Hope that helps,Clutch