Epson Stylus Pro 7900 - Page 313

Pro 7900 and 9900 Field Repair Guide 10/6/10
Ink Mark Sensor Position Adjustment Printer Component, Software Item, LCD Display, Printer Button Page 313.
3. Place the 2.6mm Jig in place.
6th Pinch Roller from the right side of the Printer.
Thick side of the Jig.
Place the 2.6mm Jig in place under the 6th Pinch Roller from the right.