My Designjet 750C Plus is printing unwanted black rectangles on my CAD plots. I have changed the cartridge to eliminate that as a possible cause, with no change. I am sending a photo to show the problem. Have you seen this before and know the cause? I have the downloaded manual and can't find anything in there about it. I will call you later. Thanks for any help that you can offer.
Dudley's Answer---
Hi Susan,
I got my 75C Plus working again. You asked for feedback if I got it fixed again, in case you come up against the same problem with another plotter. I replaced the trailing ribbon cable and the problem has gone. Of course these things always come in multiples, so my 1055 plotter now needs a new black printhead.