Epson projector has vertical roll
 

Epson model ELP-3300 has developed a vertical roll. No visable
adjustments, inside or out! Are there hidden menus or software fixes?
Projector is too old and not worth having service center repair. Other
than the roll, projector works great.

Epson projector has vertical roll
 

It is a component failure in the vertical sync path. Simply follow the
vertical pulse from the computer xga connector to the big digital video
process ic to see if it is something simple.