Stylus Pro 4880 Field Repair Guide 1/17/08
Carriage Timing Belt Tension Adjustment Printer Component, Software Item, LCD Display, Printer Button  Page 139.
Carriage Timing Belt Tension Adjustment
Note: This mechanical adjustment sets the Carriage Belt Tension.
1. Remove the Left Side Cover.
2. Turn the Adjustment Screw until the Belt Bracket is positioned by the 3rd Mark from the right.
Turn the Adjustment Screw. 3rd mark from the right.