You have some ink debris that has caught on an edge of the printing
head. As the paper leaves the pressure rollers it's hitting that debris.
That area needs to be cleaned up to get the residue off.
You might take a stiff piece of oak tag and try running it underneath the
head. That may clean it. You may want to move the head off its locked
docking station. To do that start the printer. As soon as the head moves to
the left of its docking station pull the plug out of the wall. That will
allow free movement of the head. The front of the head moves along a front
guide rail. You should be able to tilt it up slightly to allow the oaktag
easy entrance underneath and then move the head back and forth pushing it
against the oaktag to pick up any of the erroneous ink remainder.
Alternatively you could try the sheet jacketed ruler method below, which
I've found worthy in my recent bout with a now defunct C84 (from a head
clog).
If you take a piece of sheet, soak it in some original formula Windex,
wrap it around a thin stainless steel 6" by 3/4" wide carpenter's ruler (the
thickenss of the ruler is less than 1/16"). The end of the ruler makes a
good stiff handle to hold as you swipe the head back and forth for cleaning
the underside. Windex has long been considered an excellent solvent for
Epson inks as it contains ammonia.