4-8Controller board removalWarning:• Always touch a ground before touching the board.• Handle the board carefully by the edges.• Never replace the operator panel and controller board without a successful POR in between.• Never replace the operator panel and the controller board at the same time. Each card contains the printersettings. When either of these cards is new, it obtains its settings from the other card. Critical factorysettings are lost when both cards are new and are replaced at the same time.1. Remove the screw (A) from the USB port.2. Lift the scanner assembly to the raised position. See “Lifting the Scanner to the up position” onpage 4-102.3. Remove any option cards from the controller board.CAUTIONThis product contains a lithium battery. THERE IS A RISK OF EXPLOSION IF THE BATTERYIS REPLACED BY AN INCORRECT TYPE. Discard used batteries according to the batterymanufacturer’s instructions and local regulations.A
