Ricoh ST23, Service Manual

Page: 7 / 46

Symbol Name Function Index No.
SOL23
Relay Solenoid Turn the relay gate to transport the copy to
the 2nd sorter.
43
Sensors
S1
Entrance Detects paper jams at the entrance of the
diagonal transport unit.
37
S2
Registration Detects paper jams at the horizontal transport
unit.
21
S3 Proof Tray Exit Detects paper jams at the proof tray exit. 2
S4
Bin/Jam (LED) Detects if paper is in the bin.
Detects paper jams at the bin.
3
S5
Bin/Jam (Photo Tr) Detects if paper is in the bin.
Detects paper jams at the bin.
19
S6
Staple Unit H.P. Detects if the staple unit is in the home
position.
4
S7
Jogger Unit H.P. Detects if the jogger unit is in the home
position.
10
S8 Grip H.P. Detects if the gripper is in the home position. 11
S9
Hammer H.P. Detects if the staple hammer is in the home
position.
13
S10
Jogger H.P. Detects if the jogger arm is in the home
position.
17
S11 Side Bar H.P. Detects if the side bar is in the home position. 33
S12
Tray Gate H.P. Detects if the by-pass tray gate is in the home
position.
34
S13
Tray Gate Upper
Position Detects if the by-pass tray gate is in the upper
position.
35
S14
Staple Unit
Position Detects the position of the staple unit.
32
S15 Paper Detect if copies are under the hammer. 7
S16 Staple End Detects if the staple is present. 16
S17
Diagonal
Transport Door
Open Detects if the diagonal transport door is open.
39
S18 Timing Supplies timing pulses to the main board. 29
S19
Relay Unit Cover
Open Detects if the relay unit cover is open.
41
S20 Relay Sensor Detects paper jam at the relay unit. 42
Capacitor
C1 Main Motor Protects the PCB’s from induced current. 23
Noise Filter
NF1
Noise Filter Removes electrical noise generated by the
copier and the sorter stapler.
25
6 March 1992 OVERALL MACHINE INFORMATION
6