Chapter 33-23.2 Parts Replacement Procedure3.2.1 Scanner Unit3.2.1.1 Preparation for Removing the Control PanelAssembly 0014-7669i-SENSYS MF4150 / i-SENSYS MF4140 / i-SENSYS MF4120 /1) Remove the front cover.2) Remove the right cover.3) Remove the left cover.4) Remove the rear cover.3.2.1.2 Removing the Control Panel Assembly 0014-7671i-SENSYS MF4150 / i-SENSYS MF4140 / i-SENSYS MF4120 /1) Disconnect the 5 connectors [1], and remove the 1 screw [2] of thegrounding wire.F-3-22) Open the control panel assembly [1] to remove it upward.F-3-33.2.2 Book Motor3.2.2.1 Preparation for Removing the Flat Bed Motor 0014-7672i-SENSYS MF4150 / i-SENSYS MF4140 / i-SENSYS MF4120 /1) Remove the front cover.2) Remove the right cover.3) Remove the left cover.4) Remove the rear cover.5) Remove the control panel assembly.3.2.2.2 Removing the Flat Bed Motor 0014-7673i-SENSYS MF4150 / i-SENSYS MF4140 / i-SENSYS MF4120 /1) Open the copyboard glass cover [1], and remove it upward.Pull out the hinge [2] on the left side while keeping it tilted toward theback.Place the detached copyboard glass cover on cloth etc. not to damage the bot-tom sheet.F-3-42) Reverse the copyboard [1] and detach the bottom cover [4].- 2 screws [2]- 5 claws [3]F-3-53) Free the cable [1] from the cable guide [2].F-3-64) Reverse the copyboard [1] again.5) Remove the 4 screws [2], and detach the copyboard cover [3].6) Remove the copyboard glass [4].Do not make dirty the bottom of the copyboard glass.F-3-7