Pro 7900 and 9900 Field Repair Guide 10/6/10
Board (Power Supply) Removal Printer Component, Software Item, LCD Display, Printer Button Page 33.
Board (Power Supply) Removal
1. Turn off the Printer and UNPLUG from AC.
2. Remove the Cover (Rear).
3. Unplug the Cables that attach the Power Supply to the Printer.
1. Unplug CN301.
2. Unplug CN001.