Agfa Grand Sherpamatic 50"

[cpd]

Ok guys we been using HP designjet 5500UV for posters and canvases and recently bought this used Agfa Grand Sherpamatic 50" machine just to do posters (as was getting on bargain price, well now I know why)

I am struggling to find resources online so I believe guys out here with wealth of knowledge can help me
1) What printhead type does it use?
2) Currently it has got Dye inks (are they also called water based as some consumable providers say they are water based so I am confused)
3) Can any one provide me service manual/instructions or anything you got for this printer.

I thank in advance and appreciate help.

Thanks
Randy