Epson Sure Colour P800 Help

[Papersky]

Hello I have an Epson SC P800 printer it got a paper jam a couple of days ago and now is producing ink drops (see picture) and slight colour mix. can anyone help? I have done a print head clean and a pump cap clean as well. Thank you in advance

 

[mikling]

The second sheet had been having head strikes where the non flat areas were touching the nozzles and disturbing the ink nozzles.
In so doing it has wicked ink from the nozzle holes and thereby printing chamber causing an absence of ink in the nozzle and no printing. The rightmost bar on the printed chart seems to be indicative of that showing a really odd shade.

Perform some more head cleans. I doubt the dampers from the 800 are shot. After the above, assuming your printer was working fine previously, it should be restored.