HP 9250C Digital Sender - Page 6

Memory .............................................................................................................................. 28
Control panel ..................................................................................................................... 28
Keyboard ........................................................................................................................... 28
Scanner controller board ................................................................................................... 28
Engine control system ........................................................................................................................ 28
Engine power supply circuit ............................................................................................... 28
Flatbed unit and ADF system ............................................................................................................. 29
Electrical system ................................................................................................................ 29
Motors and fans ................................................................................................................. 30
Optical assembly ............................................................................................................... 30
ADF feed system ............................................................................................................... 32
Jam detection .................................................................................................................... 33
5 Removal and replacement
Removal and replacement strategy .................................................................................................... 36
Required tools .................................................................................................................... 36
Before performing service .................................................................................................. 36
After completing service .................................................................................................... 37
Screws that are used in the digital sender ......................................................................... 37
User-replaceable parts ....................................................................................................................... 38
Separation pad .................................................................................................................. 39
Pickup-roller cover ............................................................................................................. 41
Pickup roller assembly ....................................................................................................... 43
Mylar-holder assembly ....................................................................................................... 44
ADF mylar shield ............................................................................................................... 46
Control panel ..................................................................................................................... 47
Control-panel overlays ....................................................................................................... 48
Formatter assemblies ........................................................................................................ 49
Hinge flaps ......................................................................................................................... 53
Paper input tray ................................................................................................................. 54
External components and covers ....................................................................................................... 55
Keyboard ........................................................................................................................... 56
Control-panel lower cover .................................................................................................. 58
Control-panel upper cover ................................................................................................. 59
Control-panel cover assembly ........................................................................................... 60
External control-panel cable .............................................................................................. 63
Output bin base cover or output bin extender .................................................................... 64
Output bin paper lever ....................................................................................................... 65
ADF right cover .................................................................................................................. 66
ADF right-corner cover ...................................................................................................... 68
ADF left cover .................................................................................................................... 69
ADF left-corner cover ......................................................................................................... 71
ADF rear cover .................................................................................................................. 72
Scanner right cover ............................................................................................................ 73
Scanner left cover .............................................................................................................. 74
Scanner front cover ........................................................................................................... 75
Scanner rear cover ............................................................................................................ 76
Right hinge cover ............................................................................................................... 77
Left hinge cover ................................................................................................................. 78
Upper hinge cover ............................................................................................................. 79
iv ENWW