14-38 Key Operator ModeKey Operator ModeTray Size Setting [11]Select whether the tray size setting will be detected or not detected when ATS/APSfunctions. If you select it to be detected, you may also select the priority of the detectionfor each tray.Key Operator Mode Screen 1 Key Operator Mode Screen 2Tray Auto Select Setting Screen1 Press [ HELP ] to display the Help Screen, then touch Key Operator Mode.Enter a 4-digit key operator password, then touch OK to display the Key OperatorMode Screen. (See note.)2 To display menus [11] to [18] of the Key Operator Mode Screen, touch Lowerarrow key.3 Touch [11] Tray size setting to display the Tray Auto Select Setting Screen.4 On the left half of the screen, touch to highlight each tray key, then select OFF or ONto specify whether the selected tray is to be automatically detected or not when ATS/APS functions.5 Tray keys specified as ATS/APS ON will appear on the right half of the screen.Touch to highlight the desired tray key, then change its priority by using Up (s) andDown (t) arrow keys.6 Touch OK to complete the setting and restore the Key Operator Mode Screen.7 If other key operator setting changes are required, select the desired menu item, from[1] to [18].8 If no further changes are required, touch PREVIOUS SCREEN to restore the BasicScreen to perform copying operations.NOTE: If an invalid Key operator password is entered, continue by entering the valid 4-digit password.