Test print dragging Roland SP300v

If it is doing the "exact" same thing on both the old and new printheads, then you most likely have a bad ribbon cable. Power down, unplug, then remove the ribbon cables and examine the traces for any damage.They are not very expensive, so I would suggest you replace both of them.

Regards,
Jim Hancock

 

Did you drip ink on the cables or the head? Agree with MrkGxd order cables.

 

When you place the printer in the cleaning mode and the print heads move to the far left side of the printer and you have removed the maintenance cover have you looked at heads and the plastic parts around the head to make sure a small piece of dust hair is not dragging over your prints.

You have to look really close to see this it is something I check all the time when I see ink on my printing and it's very easy to over look this problem.
If you have already tried this please ignore this message.
Jim

 

Encoder

 

That is definitely an electrical issue. Did you change the cable with the new head? If not, it may be damaged or have ink.corrosion on it. That pattern is an electrical short for sure. Could also be main board damage but it's almost always the cable or print head having an issue.