Ricoh fax4700l, Service Manual

Page: 304 / 304

FDU
OPU
CN1
1
2
3
4
5
6
7
8
1
2
3
4
5
1
2
3
4
5
6
1
2
3
1
2
1
2
3
4
5
6
7
8
1
2
3
4
5
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
100 Sheet Cassette (Optional)
Paper Feed Clutch
CAS4 [ 5]
CAS6 [ 5]
COM1
CAS5 [ 5]
+24VM
Clutch ON [ 24]
COM1
Paper End [ 5]
Paper End Sensor
Paper Size Sensor
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN3
CN18
CN23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NCU
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
CN4
CN5
CN1
1
2
3
4
5
CN2
+24V
HOOK1 [ 5]
EXTDI [ 5] (US only)
COM1
OHDISW [ 5]
CMLSW [ 5]
DOSW [ 5] (US - Not used)
Not used
RSEL (US - Not used)
COM3
TRXD (Tx/Rx Signal)
Not used
COM2
EXRING
HOOK0 [ 5]
CSEL1 (US - Not used)
+5VEE (US - Not used)
+5VE (US - Not used)
GSSW [ 5] (US - Not used)
CSEL0 (US - Not used)
Tx
Motor
1
2
3
4
5
6
CN17
A
BB
COM34
B
AB
COM12
1
2
3
4
5
6
7
8
9
10
11
COM1
COM1
Document Sensor ON [ 5 ]
Energy Saver LED ON [ 5 ]
+5VE
Energy Saver Key [ 5 ]
COM1
Serial Data
Serial Clock
- 9V
+5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
+24VD
Stamp ON [ 24]
Stamp
COM1
Speaker Output
Monitor Speaker
Ozone Fan Motor
+24VM
Fan Motor ON [ 24]
CN12
CN13
CN25
Fusing Thermistor
Paper Size Sensor
(Standard Cassette)
ADCH
COM1
CAS2 [ 5]
CAS1 [ 5]
CAS0 [ 5]
Thermistor Output
CN10
CN11
+24V
+24VD
Not used
+5V
+5VLD
CN21
CN14
CN26
PI1
Laser Syncronization Signal (Optical Fibre)
CN74
Paper
Feed
Motor
A
BB
COM34
B
AB
COM12
CN15
CN7
Paper End Sensor
(Standard Cassette)
Bypass Feed Sensor
Registration Sensor
Toner End Sensor
Not used
Toner End Sensor Output
+5V
COM1
Paper Present [ 5]
+5V
COM1
+5V
Paper Present [ 5]
COM1
COM1
Paper End [ 5]
CN20
Fusing Exit Sensor
Fusing Exit Cover Sensor
COM1
Cover Open [ 5]
+5V
Paper Present [ 5]
COM1
LDDR
+5VLD
LD Enable [ 5]
COM1
Print Data [ 5]
COM1
5APC Sampling Hold [ 5]
Point-to-Point Diagram Point-to-Point Diagram
Model: FX4 (FAX4700L)
Model: FX4 (FAX4700L)
Power
Pack
Charge
Transfer
Toner
Application
Development
+24V P.P.
Charger Leak [ 24]
Development Bias 1 [ 24]
Development Bias 0 [ 24]
Transfer Bias 1 [ 24]
Transfer Bias 0 [ 24]
Charge [ 24]
COM3
Polygonal
Mirror
Motor
+24VM
Motor Clock
Motor Lock [ 5]
Motor Enable [ 24]
COM3
Printer Interface
(Optional)
Controller Ready [ 5]
+24V
COM3
COM3
+5V
Interrupt [ 5]
Serial Data (Status)
Serial Data (Command)
Serial Clock
Printer Ready [ 5]
COM1
Print Start [ 5]
Vertical Synchronization Signal
Horizontal Synchronization Signal
Line Synchronization Signal [ 5]
Not used
Print Data [ 5]
Not used
Printer Interface Installed [ 5]
PIF Reset [ 5]
1
2
3
4
5
6
7
8
CN1
C
T
B1
B2
Issued on: October 6th, 1995
Revision 1.0
Subject to change
+24V
+24V
COM3
Power to the Fusing Lamp ON [ 5]
Fusing Lamp ON [ 5]
COM3
+24VM
COM3
ACL
ACN
GND
HTN
HTL
PSU
1
2
3
4
5
6
7
8
CN4
CN2
CN1
Transfer Bias (T)
Toner Application Bias (B1)/ Development Bias
(B2)
OFF/OFF
Bias 0 = L
Bias 0 = H
Bias 1 = L Bias 1 = H
-700V/ - 400V
- 50V/ +250V
OFF/-400V
OFF
Bias 0 = L
Bias 0 = H
Bias 1 = L Bias 1 = H
+5
µµ
A
- 1000V
OFF
Charge Bias (C)
Charge = H
Charge = L - 305
µµ
A
OFF
Mechanical Counter
(Optional)
Fusing Fan Motor
Quenching Lamp
COM3
Fan Motor Enable [ 24]
Count-up [ 24]
+24VD
+24VM
Quenching Lamp Enable [ 24]
+24VD
Motor Lock [ 5]
Motor Enable [ 24]
COM3
Main
Motor
Top Cover Interlock
Switch
Front Cover Interlock
Switch
AC Line
DC Line
Signal Direction
Active High
Active Low
Voltage
Symbol Table
[ ]
SBU
1
2
3
4
5
6
7
CN1
CN71
+12V
COM1
Analog Video Signal
COM1
SHB
RSB
PH1B
1
2
3
4
5
6
7
Scanner Lamp
(Xe Lamp)
1
2
3
+24VD
Lamp On [ 5]
COM3
CN70
Lamp Stabilizer
(Inverter)
CN5
A3 Width Sensor COM1
Paper Present [ 5 ] 1
2
CN4
1
2
3
B4 Width Sensor
+5V
COM1
Paper Present [ 5 ]
CN3
Scan Line Sensor
+5V
COM1
Paper Present [ 5 ]
1
2
3
CN2
Document Sensor
COM1
Paper Present [ 5 ]
1
2
Function
Upgrade Card
or
Fax On Demand
Card
(Optional)
CN1
RS232C Interface
(Optional)
100 pins
A0
D7
1DEIT2 [ 5 ]
D6
A3
D5
A2
D4
A1
D3
COM1
D2
5EXCS0 [ 5]
D1
5RSRES [ 5]
D0
+5V
5RD [ 5]
COM1
5WR [ 5]
FCE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN1
CN5
CN3
68 pins
Feature Expander
2M
4M
80M (HDD)
(Optional)
88 pins
CN2
CN4
G4 Interface Board
(Optional)
40 pins
CN4
1
2
3
4
Analog Video Signal
Video Adjust Signal
COM1
Factory Use
COM1
Audio Input
Microphone
(Fax On Demand option)
+5V
COM1
Hard Disk Interface
(Optional)
CN73
CN77
1
2
1
2
1
2
3
4
5
6
7
8
9
10
CN75
Latch
+5V
Serial Clock
Serial Data
COM1
Serial Data
+24V
+24V
COM3
COM3
1st PFU
(Optional)
Latch
+5V
Serial Clock
Serial Data
COM1
Serial Data
+24V
+24V
COM3
COM3
INSL1
INSL0
2nd PFU
(Optional)