Ricoh D131 Service Manual page 880

Input/Output Check
23 Stape Waste Hopper Sensor
24 Pre-stack Tray Paper Sensor
25 Hold HP Sensor
26 Exit Guide HP Sensor
27 Stapler Reverse Sensor
28 Stapler Sensor
29 Front Hold HP Sensor
30 Rear Hold HP Sensor
31 Knock Hold HP Sensor
32 Reverse Drive HP Sensor
33 Paper Sensor
34 Tray Lower Sensor
35 Punch HP 2 Sensor
36 Shift Jogger Sensor
37 Shift Jogger HP Sensor
38 Shift Jogger Release HP Sensor
39 Front Door Safety Switch
40 Top Fence HP Sensor
41 Bottom Fence HP Sensor
42 Lower Tray Full Sn (Z-Folded Paper)
SM Appendix 3-305 D131/D132/D133