Stylus Pro 4880 Field Repair Guide 1/17/08
Board (Main) Installation Printer Component, Software Item, LCD Display, Printer Button  Page 14.
2. Install 1 Screw that fastens the USB Port to the Main Board Housing and tighten the 7 Screws 
that fasten the Main Board to the Housing.
1. Install 1 Screw.
2. Tighten the 7 Screws that fasten the Main 
Board to the Housing.