12

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

9

10

A B C D E F G

A B C D E F G

ContactImageSensor(CIS)

OPU

PSU(Power Supply

Unit)

+24VMCOM3

POLMEN [!P]POLMLOK [!]

POLMSCLK

MAMSCLKMAMBK [!P]MAMCW [!P]MAMST [!P]MAMLOK [!]

COM3COM3+24VM+24VM

M0AD+24VMMM0ABDM0BD

+24VMMM0BBD

M0OUT1M0OUT3M0OUT2M0OUT4

+5VDS

DCLON ["] (only EU)

COM1RCSEL (only Asia)

HOOK1 [!]HOOK0 [!]EXRING0

COM2

TRXD (A)

COM1PRNTXDPRNRXD

PRNWAKIN [!]PRNENB ["]

PRNFGAT [!]PRNDET [!]

PRNDATCOM1

PRNSYNC [!]PRNLGAT [!]

COM1PRNCLK

+5VE+5VE

COM1+5V

PFSEN [!]PFLAT ["]

PFSIDPFSODPFCLK+24VM+24VMCOM3COM3

+5VEOPUSIDOPUSODOPUSCLK

CSCONT [!]COM1

SP+COM1

+5VVVGLED [!]VRLED [!]VBLED [!]

+24VEDCISCLKCOM1

SICOM1+5VVCOM1

COM1VIDEO (A)

HTRL ["]

ZEROC [!]COM1+24VM

PWMCFBC(A)FBT (A)PWMTPPWMTMPWMBFBB (A)

+5VCOM3+24VM+24VM

MANUCLT [!]PAPCLT [!]REGCLT [!]

+24VMMKCNT [!]

PCUSET ["]COM1

TESNOUT (A)+5V

NPCU [!]COM1

COM1REGST [!]

+5VE

COM1CPYOUT [!]

+5V

COM1PESEN ["]

COM1MPESEN ["]

COM1S1 [!]

DFOPEN2 ["]DFOPEN1 ["]

COM1DFOPEN2 ["]

PSENOUT (A)PSENLED

COM1+5V

COM1S2 [!]

+5V

COM1DSIDESEN [!]

+5V

+24VED+24VE

+24VMTBCLT [!P]

+24VMCLFANM [!P]

+3VVTMST (A)

STAMP [!P]+24VM

ADFCLT [!P]

+24VMDISCH [!P]

FCU

54321

109876

111213

123456

789

1234

109876

111213

12345

14

109876

111213

12345

1415

109876

11

12345

6

12345

87

123

1234

109876

111213

12345

14

123456

78

123456

54321

109876

111213

12345

14

12

78

3456

123

123

12

12

12

34

12

1234

123

123

12

12

12

12

12

12

123

12

12

A1

........68

21

876543

COM3COM3+24VE+24VECOM1COM1+5VE+5VE

CN

5

12345

CN

4

56789

432

1413121110

1

CN

295

Mech. Counter

Registration Sensor

LDDR(Synchronization

Detection)

CN

1

12345

54321

45678

321

321

987654

Main Motor

654321

123456

4321

1234

56789

432

1413121110

1

NCU

678910

543

1514131211

21

PrinterInterface

1

65432

CN

1

12

56789

432

1413121110

1

21

Paper Exit Sensor

Paper End Sensor

By-pass PE Sensor

S1 Sensor

ADF Upper Cover Open Switch

ADF Unit Open Switch

ID Sensor

S2 Sensor

Duplex Sensor

Toner Supply Clutch

Exhaust Fan Motor

Thermistor

ADF Clutch

Stamp

Quenching Lamp

OPIF

Flash Memory Card/Flash Disk

12345

Polygonal Mirror Motor

Tx Motor

Duplex Motor

321

6

456

12345

CN

3C

N4

SHUNT (only EU)T1 (only EU)

TIPRING

R1 (only EU)GS (only EU)

SHUNT (only EU)

T1

GS (only EU)

R1

109876

11

12345

12

TrayMain

Board(PFU)

CN

5C

N12

CN

34C

N11

CN

4C

N33

CN

8C

N35

CN

15C

N3

CN

3

20

12341

CN

2

Monitor Speaker

CN

1

LCD Display

NIC

IEEE1284

TEL

Line

CN

23C

N27

CN

28C

N29

CN

30

C

N31

CN

38C

N32

CN

37C

N2

CN

14C

N19

CN

22C

N36

CN

13C

N20

CN

21C

N9

CN

24

A1

B50

.... CN

63C

N1

A1

B50

21

Tray Heater(Option)

ACN 12

12

12

12

12

12

C

T

B

CN

3C

N2

CN

1

ACL

ACN

Charge

Transfer

Development

+24VMREGCLT [!]

+24VMPAPCLT [!]

PCU

RegistrationClutch

Paper FeedClutch

By-pass FeedClutch

12

21

+5VAPCSH [!]

COM1LDDATALDEN [!]

LDSYNC ["]COM1+5VLD

...

CN

1

12

Symbol

"

"

P

A

Power, GND

Signal Line

Active High

Active Low

24 V Line

Analog

CN

6C

N7

CN

25

CN

1C

N2

CN

3

T291

T292

T293

CN

16

ACLACL

ACL

Fusing Lamp

TD Sensor

New PCU Detection

Front DoorSafety Switch

Right DoorSafety Switch

....

Direct Insertion

A1 B30. . . .

CN1

A1 B30. . . .

CN2

JPEGBoard

A1 B30. . . .

CN3

A1 B30. . . .

CN3

NICFBoard

A1 B30. . . .

CN1

A1 B30. . . .

CN6

SG3-DBoard

StatusIndicators

CN

101

21216

3

12345

45C

N10

5

89

CN

104

CN

103

GREEN_C

RED_ARED_C

GREEN_A

PENDCOM1

COM1DOOROPEN

COM1PES+5V

+24V

+24VPHABPHB

PHA

Door Switch

Paper EndSensor

Paper FeedSensor

Paper FeedClutch

PHBB

Paper FeedMotor

LAN

CN

1C

N50

7

Thermo Switch ThermofuseFG

+24VMMANUCLT [!]

Poewr Pack I/F

ElectricalI/F

HTTR ["]

GSSWON ["] (only EU)

DOSWON ["] (only EU)CMLSW [!]

OHSWON ["]

JunctionConnector

Blue

Blue

Black

Blue

Yellow

Black

Red

POINT TO POINT DIAGRAM MODEL S-F2 (H556/H557)

ELECTRICAL COMPONENT LAYOUT MODEL S-F2 (H556/H557)

H556V106.WMFH556V105.WMF

H556V107.WMF

Description Index No. P to P Sensors S2 1 B-7 CIS (Contact Image Sensor) 2 F-10 S1 7 B-5 ID (Image Density) 9 B-6 Registration 10 B-4 Paper End 11 B-5 By-pass Paper End 12 B-5 TD (Toner Density) 13 B-4 LDDR (Synchronization Detection)

17 F-2

Duplex 38 B-7 Paper Exit 39 B-5 PCBs OPU (Operation Panel Unit) 19 F-8 FCU 25 D-5 PSU 26 B-2 NCU 27 F-4 NICF 28 B-9 JPEG 29 A-9 OPIF 30 C-10 Power Pack 35 B-3 Lamps Quenching 8 B-9 Status Indicators 16 G-8 Fusing 41 A-2

Description Index No. P to P Switches ADF Upper Cover Open 3 B-6 ADF Unit Open 5 B-6 Right Door Safety 14 C-7 Front Door Safety 15 B-7 Clutches ADF 21 B-9 Toner Supply 24 B-8 Paper Feed 32 A-3 By-pass Feed 33 A-3 Registration 34 A-3 Motors Tx 4 F-3 Polygon Mirror 18 F-1 Duplex 22 F-4 Exhaust Fan 23 B-8 Main 31 F-3 Others Stamp 6 A-8 Monitor Speaker 20 F-8 Thermoswitch 36 A-2 Thermistor 37 B-8 Thermofuse 40 A-2

22

23 24

25

26

27 28

2930

31 32

33

34

35

36

37 38 39

4041

1 2 3 4

5

6

7

8

9

10

11

12

13 14

15

16

17

18

19

20

21

POINT TO POINT DIAGRAM MODEL S-F2 (H556/H557)ELECTRICAL COMPONENT LAYOUT MODEL S-F2 (H556/H557)