how to calibrate an epson perfection v200

Their (Epson) idea of 'glass' is plexiglass, which is a PLASTIC of polycarbonate nature. Kmac, I offer you some non Epson 'options' for the V800. After my wife checks that out I can then assess her attitude towards LF. He does not scan but other LF scanned prints will be on display. I am taking my wife to see Christopher Burketts work at Photography West in Carmel tomorrow. I am going to think about it for a couple months and then decide. I guess it's time to determine once and for all if I want to try 4x5 or not. Not sure what to do but am tempted to purchase a new scanner. And again as before the stripe does not switch to the other side if you flip the negative for scanning. I put the scanner back together and it still works but the color stripe has moved to the other side. It seemed very clean to me but I cleaned it anyway. Anyway with your diagrams I was able to take the V600 apart and clean the glass.

If you flip the negative over the purple strip does not move to the other side leading me to figure the negative is fine and the scanner is at fault. I have an Epson V600 and have been getting a purple vertical stripe on my color scans. Your information was of great help to me sort of.

How to calibrate an epson perfection v200