Canon imageRUNNER ADVANCE 4551i Service Manual page 185

■ List of Sensor
SR6
SR2
Symbol
SR1 Registration sensor
SR2 Read sensor
SR3 Delivery reversal sensor
SR5 Document set sensor
SR6 Cover open/closed sensor
SR7 Document length sensor 1
SR8 Document length sensor 2
SR9 Different width sensor 1
SR10 Different width sensor 2
SR11 Different width sensor 3
SR12 Different width sensor 4
SR13 Document width sensor 1
SR14 Document width sensor 2
SR15 Document width sensor 3
SR14
SR15
SR5
SR12
SR11
SR3
SR1
Name
SR8
SR10
SR9
Main Unit
Feed assembly
Feed assembly
Feed assembly
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Document supply tray
Document supply tray
Feeder Cover
Feeder Cover
Feeder Cover
Feeder Cover
Document supply tray
Document supply tray
Document supply tray
172
4. Disassembly/Assembly
SR7
SR13
Reference
"Removing the Sensor
(SR1,SR2,SR3)" on page 229
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"Removing the Different Width
Sensor PCB (PCB3)" on page
228
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