Sharp AR-FN8 Service Manual page 209

Name
Photointerruptor
Height sensor
Notation
PI1 Detects paper in the inlet area
PI3 Detects paper in the delivery area
PI4 Detects paper on the stapling tray
PI5 Detects the state (open) of the shutter
PI6 Detects alignment guide at home position
PI7 Detects the stapler at home position
PI8 Detects the tray at home position
PI10 Detects delivery motor clock pulses
PI11 Detects paper on tray 1
PI12 Detects paper on tray 2
PI14 Detects paper in the buffer path
PI15 Detects the finisher joint
PI16 Detects the state (open) of the door
PI17 Detects paper at the inlet to the buffer path
PI18 Detects the state (open) of the swing guide
PI9 Detects tray lift motor clock pulses 1 (on sensor PCB)
PI19 Detects tray lift motor clock pulses 2 (on sensor PCB)
PI20 Detects swing guide clock
PI22 Detects staple drive home position (inside stapler)
PS1 Detects the height of the stack on the tray
Table 7-301
CHAPTER 7 TROUBLESHOOTING
Function
7-11