Sharp AR-FN8 Service Manual page 211

Name
Microswitches
Notation
MS1 Detects the state (open) of the front door and the upper door
MS2 Detects the state (closed) of the swing guide 1
MS3 Detects the safety range
MS4 Detects the state (closed) of the shutter
MS5 Detects the tray at the upper limit
MS6 Detects the state (closed) of the swing guide 2
MS8 Detects the presence absence of staples (inside stapler)
Table 7-302
CHAPTER 7 TROUBLESHOOTING
Function
7-13