Ricoh FT8680 Service Manual page 389

A B C
* 1
NOTE:CN1 is located on the tray motor pcb.
* 2 Drum Heater
* 2
NOTE:CCW=low to turn counterclockwise, tray up.
12
(OPEN 65 ) CW=high to turn clockwise, tray down.
(CLOSE 50 )
RA303
T H
CN161-1
2
CN152-3 CN161-2
4
CN152-2 RA304 3
CN162-2
2
CN162-3
3 4 CN164-2 T151-2
(OPEN 160 )
RA303
T H
(CLOSE RESET SW) 7 CN161-6
CN152-1 CN161-5 Anticondensation
5 Heater
6
Drum Heater
Drum Heater Drum Heater
RA304 RA303
Relay 2 Relay 1
Tray Heater SW
11
CN101-12 CN100-8
CN159-2
CN251-B26 24V
Anticondensation [ 24V]
-B25 [ 24V] Drum Heater Relay 1
Heater Relay
CN252-A16 24V
CN251-B30 [ 24V] Drum Heater Relay 2
First Tray
CN422-3 [ 12V] Paper Size1
CN1 CN251-A1
* 1
-4 [ 12V] Paper Size2
Pin #-1 -A2
10 24V
-5 [ 12V] Paper Size3 Fusing Lamp [ 24V]
-2 -A3
GND
-6 -A4 [ 12V] Papar Volume S
-3
Tray Lock
-7 -A5 [ 5V] Start /Stop 24VSORT
-4
M
-8 -A6 [ 5V] CCW/CW GND24SORT
-5
Sorter [ 12V]
-9 -A7 [ 12V] Tray Down LED
Connect
-10 -A8 12V
First Tray
CN154-2 -12 -A9 24V 24VSORT
Heater
CN422-1 -15 -B1 [ 12V] Paper Size4 GND24SORT
[ 12V]
-16 -B2 Paper Size5
(30W)
CN422-13 [ 12V]
-17 -B3 Paper Size6 GND24V
-18 -B4 [ 12V] Paper End S
CN154-1
-19 -B5 [ 12V] Tray Down SW
[ 12V] Tray Set
-20 -B6
Lower Limit S
9 -21 -B7 [ 12V]
GND
-22 -B8
CN422-24 -23 GND24V Thermofuse
-B9
GND
-14 [ 12V] Paper Size7 24V Relay
CN253-A11
-2 [ 12V] Paper Size8
-A12
CN259-1,2
Second Tray
CN423-3 CN251-A10 [ 12V] Paper Size1
CN1
* 1
-4 -A11 [ 12V] Paper Size2
Pin #-1
24V
-5 -A12 [ 12V] Paper Size3
-2
GND
-6 -A13 [ 12V] Papar Volume S
-3
Tray Lock
-4 -7 -A14 [ 5V] Start /Stop
M
-5 -8 -A15 [ 5V] CCW/CW
8
GND24V
-9 -A16 [ 12V] Tray Down LED
Fusing Entrance S [ 12V]
-A17 12V
Exit S [0 ¤
-10 -A18 24V
Unit S [0 ¤
0/12V]
-B10 [ 12V] Paper Size4
N.C 0/12V] [0 ¤
[ 12V]
-12 -B11 Paper Size5
Second Tray Thermister 0/12V] [~4.0V]
CN155-2 [ 12V] Paper Size6
-B12
Heater
Thermister [~4.0V]
CN423-1 Paper End S
-15 -B13 [ 12V]
PinchRollerSOL [ 24V]
Tray Down SW
(30W) -B14 [ 12V]
Inverter Gate SOL [ 24V]
CN423-13 -16 [ 12V] Tray Set
-B15
[ 24V]
Junction Gate SOL
Lower Limit S
CN155-1 -B16 [ 12V]
[ 12V]
Lock Detect
-17 GND
-B17
DC Polar Separation [ 12V]
-B18 GND24V
CN423-24 Lock Up Detction [ 12V]
-18 CN253-B11 [ 12V] Paper Size7
GND
7 ~Optical Fan
-B12 [ 12V] Paper Size8
24V
-19
CN259-3,4 12V
Third Tray
GND
-20
* 1 CN420-6 CN253-A4 [ 12V] Papar Volume S Paper Feed MC [ 24V]
Pin #-1
24V
-7 -A5 [ 5V] Start/Stop Pick-up SOL [ 24V]
-2
-21
GND
-8 -A6 [ 5V] CCW/CW Stopper SOL [ 24V]
-3
Tray
-9 -A7 [ 12V] Tray Down LED Paper Feed S [ 12V]
-4
Lock -22
M 12V
-10 -A8 Paper End S [ 12V]
-5
Tray Lock Sig
-11 -A9 [ 12V] Tray Open S [ 12V]
-23
24V
-12 Connector S [ 12V]
Third Tray
-A10
CN156-2 Paper Size1 [ 12V]
Heater -14
CN420-1 -18 [ 12V] Paper End S
Paper Size2 [ 12V]
-2
-19 -B4 [ 12V] Tray Down SW
Paper Size3 [ 12V]
(30W)
6
CN420-13 -20 -B5 [ 12V] Tray Set
Paper Size4 [ 12V]
-21 -B6 [ 12V] Lower Limit S
CN156-1
-22 -B7 GND
CN420-24
GND -23 -B8 GND 24V
-B9
[ 12V]
Vertical Transport Unit(Right) Paper Volume S
Paper End S [ 12V]
CN410-1 CN251-A19 24V
Tray Down SW [ 12V]
-2 -A20 12V
Tray Set [ 12V]
-3 -A21 GND
[ 12V]
Lower Limit S
-4 -A22 [ 24V] Vertical Drive MC
mc
-5 -A23 Paper Size1 [ 12V]
[ 24V] Paper Feed MC1
mc mc
-6 -A24 Paper Size2 [ 12V]
[ 24V] Paper Feed MC2
mc
[ 12V]
-7 -A25 Paper Size3
5 [ 24V] Pick-up SOL 1
sl
-8 -A26 [ 24V] Pick-up SOL 2
sl
-10 -B19 [ 12V] Tray Paper Feed S1
[ 12V]
-11 -B20 [ 12V] Upper Limit S1 Connector S
[ 12V]
-12 -B21 [ 12V] Duplex Exit S Upper Limit S
[ 12V]
LCT 500 S
-13 -B22 [ 12V] Tray Paper Feed S2
CN410-16 GND
Door SW [ 12V]
-14 -B23 [ 12V] Upper Limit S2
GND
-15 -B24 [ 12V] Unit set
Vertical Transport Unit(Left)
CN400-1 CN253-A20 24V SC Leak
[ 12V]
-2 -A21 12V
-3 -A22 GND
4 -4 -A23 [ 24V] Vertical Drive MC
mc
[ 24V]
-5 -A24 Paper Feed MC3
mc
-6 -A25
PTC Leak
[ 12V]
-7 -A26 Pick-up SOL 3 [ 12V]
sl
-8 -A27
-10 -B19 [ 12V]
Tray Paper Feed S3
-11 -B20 [ 12V]
Upper Limit S3
-12 -B21 [ 12V] 2000 Tray Set
-13 -B22 TC Leak
CN400-16 GND
-14 -B23 [ 12V]
-15 -B24 [ 12V] Unit set
Interface PCB
Duplex Unit CC Leak
[ 12V]
3
CN500-1 CN252-A1 24V
-2 -A2 12V
-3 -A3 GND
[ 12V]
-4 -A4 Unit set
Registration S
[ 12V]
-6 -B3 Jogger H.P. [ 12V]
-7 -B1 [ 12V] Duplex Entrance S
[ 12V]
-8 -B4 [ 12V] Paper End S1
Transport S
-10 -A5 [ 24V] Paper Feed MC
mc
-11 CN251-A31 [ 12V] Paper End S2
Cartridge Set
-13 CN252-B6 Jogger MotorA
[ 12V]
-14 -B7 Jogger MotorA
M -15 -B8 Jogger MotorB
Coil Overlord
-16 -B9 Jogger MotorB
[ 12V]
[ 12V]
2 -22 -B15 End Fence H.P.
-23 -B2 [ 12V] Paper Feed S
-26 -B19 [ 24V] Pressure Plate SOL
sl
-27 -B20 [ 24V] Positioning Roller SOL
sl
-29 -A6 End Fence MotorA
CN500-17 GND
-30 -A7 End Fence MotorA
M -31 -A8 End Fence MotorB
-32 -A9 End Fence MotorB
CN844-2 CN370-1 CN256-A13
Error Reset SW [ 0/12V]
CN844-3 CN370-2 CN256-A14
SC Reset 1 [ 0/12V]
CN844-4 CN370-3 CN256-A15
SC Reset 2 [ 0/12V]
CN370-4
CN844-5 CN256-A16
SC Reset 3 [ 0/12V]
CN370-5
CN844-6 CN256-A17
1
SC Reset 4 [ 0/12V]
CN370-6
CN844-7 CN256-A18
[ 0/12V]
SC Reset 5
CN844-8 CN370-7
CN256-A19
[ 0/12V]
SC Reset 6
A B C
D E F
G
Point To Point Diagram (TB2) (A170/A171)
(OPEN 25 )
(CLOSE 17 ) RA302
T H
2 CN160-1
T151-1 CN153-2 CN160-2 3
4
7 CN160-6
CN164-1 CN153-1 CN160-5 6 Main Relay
5
Anticondensation
RA302
Heater Relay
RA
101
CN100-7
CN159-1
CN101-3
-6
CN251-A27
24V -B27
N.C
SSR
24V CN251-A28
N.C
24V -B28
-A29
-B29
CN257-1
-2
-3
-4
GND
CN258-1
-2
-3
24V
-4
-5
GND
-6
12V(B)
5V -7
5V -8
CN255-B11
-A27
Thermofuse
CN251-A30 CN530-8
CN252-A17 -9
-A10 -2
24V
CN150-4
-A11 -3
12V
-A12 -4
5V
FL Stabilizer
-A13 -5 FA CN150-1
5V
N
-A14 -6 38VFL CN641-1
GND
GND -A15 -7 GND38FL -2 FL Terminal Front2
-A20 -3 FL Terminal Front1
Fusing
-B10 -12 -4 FL Terminal Rear2
CN530-13 FL Terminal Rear1
-B11
GND
-B12 -14
FL PWM
-B13
-B14 -15
-A18
-B16 -16
sl
-B17
sl
-B18 -17
sl
CN256-B13
-B21 -18
CN256-A22
-19
CN254-B1 CN700-1
-B2 -20 -2
-B3 -3
-B4 -21 -4
mc
-B5 -5
sl
-B6 -22 -6
sl
-B7 -8
-B8 -9
-B9 -10
-B10 -11 Bypass Tray
-B11 -12 (Only Europe)
-B12 -13
-B13 -14
-B14 -15
LCT (Option)
CN158-1
(30W)
-3
CN732-1
CN254-A1 CN730-1
CN835-1
-3
-A2 -2
-2
-2
-A3 -3
CN372-2
-4
-A4 -4
-4
-A5 -5
A (N-6)
CN731-3
-A6 -6
GND24
-4 CN104-A25 [ 24V] Pick-up SOL
-A7 -7
sl
-A8 -8 -5 -B26 [ 5V] Start/Stop
M -6 -A32 [ 5V] CCW/CW
-7 -B32 [ 12V] Tray Down LED
CN254-A12 CN730-12 -8 -A31 [ 24V] Paper Feed MC
mc
-A13 -13 -13 CN103-A1 [ 24V] Lock SOL
sl
-A14 -14 -14 CN104-B11 [ 12V] Paper Feed S
GND
-A15 -15 -15
LCT
+24V
-B15 -16 -1
+12V
-2
12V(B) SC Power Pack
[ 24V] Trigger
CN321-3 CN103-A28
SC Power Pack -4 CN102-B23 [ 0/12V] ACPWM
CN256-B17 CN321-6 -5 -A22 [ 0/12V] DCPWM
24VP -1
-2
GND24VP PTC Power Pack
CN322-3 CN103-A27 [ 24V] Trigger
PTC Power Pack -4 CN102-A24 [ 0/12V] ACPWM
CN256-B19 CN322-6 -5 -B24 [ 0/12V] DCPWM
24VP -1
-2
GND24VP
TC Power Pack
CN323-3 CN103-B28 [ 24V] Trigger
TC Power Pack CN102-A23 DCPWM
-4 [ 0 ¤0/5V]
CN256-B16 CN323-5 24VP -1
-2
GND24VP CC Power Pack
CN324-3 CN103-B27 [ 24V] Trigger
CC Power Pack -4 CN102-B25 [ 0 ¤0/5V] DCPWM
CN256-B18 CN324-5 24VP -1
-2
GND24VP
CN801-6 CN103-B4
[ 12V] T/S Wire Cleaner
-7 -A5 [ 12V]
T/S Wire Cleaner
CN256-B14 CN801-4 -8 CN102-A9 [ 24V]
Registration MC
mc
CN256-B15 -5 -1
24V
-2
12V(B) PSU
Transport Unit -3
GND
CN691-1
12V(B)
CN256-A21 CN691-3 Toner Cartridge -2
GND
CN690-1
Toner Collection Coil 12V(B)
CN256-A20 CN690-3 -2
Overlord Sensor GND
CN101-1
RxD1-3
-2
TxD1-3
CN102 -1
RxD1-2 RDS(Option)
-2
TxD1-2
CN103-1
RxD1-1
-2
TxD1-1
G
D E F
H I J K
CN101-1 CN100-3
CN101-4 CN100-6
(only Sorter) CN101-2 CN100-2
(only Sorter) CN101-5 CN100-5
CN312-1 24VSORT
-9 GND24SORT
CN642-3
-2
-6
-5
CN641-5
FL Unit
Erase Lamp
Operation
ADF/RDH
Unit
DC
RA305
Drive
PCB
Main PCB
Connecter For
Printer
H I J K
M
L N
CN101-7 T102-3 T102-1 CN1-4
Noise
-3 Surge
Filter
CN101-10 -4 -2 -2 Absorber
(Fusing)
-1
Main SW
T150-2 T150-1 CN166-1 CN165-1 CN100-1 T103-3 T103-1
Noise
Transformer Filter
-4 -3 CN166-2
CN165-2 CN100-4 -4 -2
(PSU)
CN312-10
38VM
-4
GND38M
-11
38VDS
-5
GND38DS
PSU
FAN FAN
Scanner Lens Lens Lens Mirror Mirror Sheet Return
Lens
H.P. Vertical Vertical Horizontal Unit Unit Through Position
Horizontal
H.P. H.P . H.P. H.P.
Sensor Sensor Encoder Sensor Encoder Sensor Encoder Sensor Sensor
12V(P) CN11-1 Stepping Motor SIG CN9
GND -2 Dev MotorSIG CN4
5V CN10-1 CN6
Main Motor SIG
GND -2 CN7
Scanner Motor SIG
12V(P) -3 MFG(+) CN3-1 CN838-1
GND -4 MFG(-) -2
-12V -5 + -3
H
U
-
H -4
U
Motor
H - -5
V
Control +
Drum H -6
V
PCB +
CN344-1 H -7
W
-
H -8
W
-9
H +
CN682-1 CN346-1
-10
H -
5V CN8-1 CN634-1
oA -2
oB -3
GND -4
MFG(+) CN3-1 CN836-1
MFG(-) -2
+
H -3
U
-
Dev Bias H -4
U
-
Power Pack H -5
V
GND +
H -6
M V
24VP +
H -7
Development W
-
H -8
Unit W
Drum Current PCB
H + -9
H - -10
CN372-4
* 4 CN372-4
CN372-2
CN372-2
A CN835-2
CN372-3
T343 CN835-1
(F-
CN372-1
6)
CN371-1 T907 T908
CN371-6
T916
GND
CN104-B14
Drum Potential
CN104-A14
[ 0~5V] CN104-B2
Coil T.C [ 24V] CN103-A10
S T.C [ 12V] CN104-B17
[ 24V] CN103-B10
Coil A3 C
[ 12V] CN104-A16
S A3 C
Coil Key C [ 24V] CN102-B21
S Key C [ 12V] CN104-A7
Trigger QL [ 1V] CN102-B2
[ 1V] CN102-A1
Trigger PTL
[ 12V] CN104-B5
[ 12V] CN103-A4
[ 12V] CN103-B3
CN104-A4
PSU
M
L N
O P
Q
31 July 1995
C.B.
12
(L)
T100 T101
AC220~240V
(N)
SYMBOL TABLE
* 3 NOTE:These numbers are in reference to the number
AC Line
of wires to the indicated connector.(1 to 1)
DC Line
indecates pin to pin continuity,i.e.,pin 1 to 1,
Pulse Signal
2 to 2,etc
Signal Direction
Ready Low
* 4 NOTE:This jumper connector is removed when Ready High
the LCT is installed and should be stored ( ) Voltage
11
with the copier.
(38)VM CN22-1
(0)GND -2
(38)VDS -3
DC Motor
(0)GND
-4
Drive PCB
5V CN19-1
GND -2
12V -3
GND -4
* 3
11 (1to1) CN17 Stepping Motor SIG
8 (1to1) CN20 Dev Motor SIG
10
8 (1to1) CN14 Main motor SIG
7 (1to1) CN23 Scanner Motor SIG
Lens
CN635-2 CN18-1 LoVM
Vertical
-3 -2 LoA
Drive
-1 -3 LoA
M
Motor
LoVM
-5 -4
LoB
-6 -5
LoB
-4 -6
CN623-1 CN15-1 LsVM
Lens
-2 -2 LsA
Horizontal
Drive -3 -3 LsA
M
Motor LsB
-4 -4
LsB 9
-5 -5
Mirror
CN631-1 CN16-1 MVM
Unit
-2 -2 MA
Drive
-3 -3 MA
M
Motor
-4 -4 MB
-5 -5 MB
Development
Motor CN21-1 Dve Motor-U
CN837-1
(46W) -2 -2 Dve Motor-V
M
-3 -3 Dve Motor-W
-2
-3
-4
8
-5
-6 Encoder
E
-7
CN633-1 CN12-1 M(+)
-8
-9
M
-2 -2 M(-)
-10
Scanner
Motor(50W)
-2
E
-3
Encoder
-4
-2
-3
-4 7
-5
E Encoder
-6
-7 CN835-3 CN13-3 Main Motor-W
-8 -2 -2 Main Motor-V
M
-9 -1 -1 Main Motor-U
Main Motor
-10
CN372
Motor(140W)
-3
T914 T913 T904 T902
T912 T911 T903 T901
CN372
RD2 LD1 -1
T918 T917
LD2 RD1
6
T915 T906 T905
Right Door
Left Door
12V(P) CN655-1
Drum
GND CN655-2
Potential
CN370-8 CN655-3
Sensor
24V CN841-1
12V(P) CN841-4
Total
CN371-14 CN841-2
Counter
CN370-13 CN841-3
24V CN842-1
12V(P) CN842-4
5
A3/DLT
CN371-15 CN842-2
Counter
CN370-12 CN842-3
24V CN843-3
GND CN843-1
Key
CN371-11 CN843-4
Counter
CN370-11 CN843-2
24VP CN350-1
GND24VP CN350-2
QL
CN371-10 CN350-3
24VP CN352-1
GND24VP CN352-2
PTL
CN371-9
CN352-3 4
12V(P) CN851-1
Auto
GND CN851-2
Responce
CN370-10 CN851-3
Sensor
CN371-13 CN652-1
C.C.
CN371-12 CN652-2
Cleaner
5V CN654-1
Drum
CN370-9 CN654-2
Thermistor
GND CN371-7
GND24VP CN371-8
24V CN371-2
12V(P) CN371-4
5V CN371-5 3
CN844-1
DATA 0 Paper Size 1 / Door Sw. LCT
DATA 1 Paper Size 2 / Jogger HP
DATA 2 Paper Size 3 / By-pass Open
DATA 3 Paper Size 4 / Transport S
DATA 4 Paper Size 5 / Fusing Unit
DATA 5 Paper Size 6 / Exit S
DATA 6 Paper Size 7 / Paper End S
2
DATA 7 Paper Size 8 / Tray Down Sw. / Registration S
DATA 8 Trey Set / Upper Limit S.1st Tray / Unit S. Duplex
DATA 9 Lower Limit S. / TCLeak / Upper Limit S. 2nd Tray
DATA 10 Paper Volume S. / Upper Limit 3rd Tray / SC Leak
DATA 11 Errer Reset Sw. / TonerCoil Load / Unit S. vert.
Transport / Connector S. / PTC Leak
DATA 12 SC Reset Dip Sw1 / Toner Cartridge S.
/ Upper Position S. 1st Tray / Upper Limit S.
LCT / PTC Leak
DATA 13 SC Reset Dip SW2 / SC Reset Dip SW5 / Lock
Detection - Optics Fan /
(Sorter & Finisher) Connect
DATA 14 SC Reset Dip SW3 / SC Reset Dip SW6
DATA 15 SC Reset Dip SW4 / Lock Detect Vacuum Fan 1
/ DC Polar Separation
O Q
P