Scanner control board (SCB) ............................................................................................................. 93 Install a replacement SCB fan ........................................................................................ 92 Before proceeding, remove the following assemblies .................................................. 93 Remove the SCB .............................................................................................................. 93 Install a scanner control board .......................................................................................
99 Image scanner assembly ................................................................................................................ 103 Before proceeding, remove the following assemblies ................................................ 103 Remove the scanner assembly .................................................................................... 103 Install a replacement scanner assembly ..................................................................... 106 Scissor hinge assemblies ................................................................................................................
113 External panels, covers, and doors ................................................................................................................... 115 Upper left cover (M651) .................................................................................................................. 117 Before proceeding, remove the following assemblies ................................................ 117 Remove the upper left cover ........................................................................................ 117 Fan cover (M680) .............................................................................................................................
118 Before proceeding, remove the following assemblies ................................................ 118 Remove the fan cover ................................................................................................... 118 Left rear cover ................................................................................................................................. 119 Before proceeding, remove the following assemblies ................................................ 119 Remove the left rear cover ...........................................................................................
119 Left cover ........................................................................................................................................ 120 Before proceeding, remove the following assemblies ................................................ 120 Remove the left cover .................................................................................................. 120 Rear cover (M651) ........................................................................................................................... 121 Before proceeding, remove the following assemblies ................................................
121 Rear cover (M680) ........................................................................................................................... 122 Remove the rear cover (M651) ..................................................................................... 121 Before proceeding, remove the following assemblies ................................................ 122 Remove the rear cover (M680) ..................................................................................... 122 Right-front cover ............................................................................................................................
124 Before proceeding, remove the following assemblies ................................................ 124 Remove the right-front cover ...................................................................................... 124 Front door assembly ....................................................................................................................... 126 Before proceeding, remove the following assemblies ................................................ 126 Remove the front door assembly .................................................................................
126 Right door assembly ....................................................................................................................... 130 Face-down tray (M651) ................................................................................................................... 134 Reinstall the face-down tray ........................................................................................ 135 Face-down rear cover (M651) ......................................................................................................... 136 Before proceeding, remove the following assemblies ................................................
136 Remove the face-down rear cover (M651) .................................................................. 136 ENWW vii