Ricoh infotec 3671F Service Manual page 193

Point-to-Point Diagram
Model:FX7
Line Synchronization
LDDR
Polygon
Mirror
+24V (SW)
Motor
Polygon Control
T.E. Level [
Toner End
Sensor
Paper End Sensor
Paper End [
Main
Motor
Fan Motor
+24V (SW)
Paper Exit Sensor
Paper Present [
Registration
Sensor
Paper Present [
Paper
+24V (SW)
Feed
SL 1
Solenoid
Thermistor
Fusing Thermistor
Transfer Plate
Transfer Roller
High
Develop Bias
Voltage
Blade Bias
Power
Lower Case Bias
Supply
Charge Bias
Optional
Paper
+24V
Paper
Feed SL 2
Feed
Solenoid
Paper End
Sensor
Heater Lamp
Thermostat
Interlock Switch
GND
CO
LD APC2
LD APC1
GND
Print Data
+5V
Not used
GND
+5V
+5V
Â
5]
T.E LED
GND
GND
Â
5]
A
-A
B
-B
Fan
Anode
GND
Á MCB
5]
Anode
GND
Â
5]
Not used
+5V
Transfer Bias
Charge On/Off
Charge Switch
Not used
Develop Bias
Bias Monitor
GND
+24V (SW)
+24V (SW)
SL2
Not used
+5V
GND
Â
Paper End [ 5]
Not used
Not used
Not used
Not used
Not used
PSU
ACL
ACN
Issued on: August 28th, 1996
Revision 1.0
Subject to change
+24V (SW)
COM 1
+24V (SW)
COM 1
COM 1
Reset
COM 1
COM 1
COM 1
H. Synch
EPRDY
PRDY
TOD
ETBSY
STS
SOD
CTBSY
PRINT
SRCLK
COM 1
COM 1
VIDEO
+5V
COM 1
+5V
COM 1
+5V
CPRDY
+5V
Heater Lamp
FCU
P.C. Anode
+24VE (SW)
COM3
COM3
Heater Lamp
+24V
+12V
COM3
-5V
+5V monitor
Symbol Table
AC Line
DC Line
Signal Direction
Active High
Active Low
[ ] Voltage
+24V
COM3
RSEL (US - Not used)
Not used
DOSW [ 5] (US - Not used)
CMLSW [ 5]
OHDISW [ 5]
COM1
EXTDI [ 5] (US only)
HOOK1 [ 5]
HOOK0 [ 5] NCU
EXRING
COM2
Not used
TRXD (Tx/Rx Signal)
CSEL1 (US - Not used)
CSEL0 (US - Not used)
GSSW [ 5] (US - Not used)
+5VE (US - Not used)
+5VEE (US - Not used)
+12V
Scanner LED ON [ 5]
Clock
COM1
Line Synchronization Signal Contact Image
COM1
Sensor
-5V
+5VV
COM1
Analog Video Signal
+5V
Reset [ 5]
Serial Data
Serial Clock
Serial Data
OPU
COM1
Energy Saver Key (Not used)
+5VE
Energy Saver LED ON [ 5 ]
A
-A
B
Tx
-B
Motor
COM A
COM B
Document
+24v
SL 3 Feed
Solenoid
Speaker Output
Speaker
COM1
+24V
COM3
+5V
COM1
Power Board
+5VE
Scanner Sensor Board
+5VE
Doc. Sensor
+5V
COM 1
Á
Doc Sensor [ 5]
ADF Cover Sensor
Á
ADF Cover Sensor [ 5]
Á
Scan Line Sensor [ 5]
Á
Scan Line Sensor
Doc Exit Sensor [ 5]
Not used
Doc. Exit Sensor
Not used
IC Card
(Optional)