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Pin

No.

1

2

3

4

5

6

7

8

ON/OFF

(CN6)

Destination

Original reverse/exit
sensor  CN28-3
Original reverse/exit
sensor  CN28-2
Original reverse/exit
sensor  CN28-1
Original reverse/exit
solenoid CN29-1
Original reverse/exit
solenoid CN29-2

Pin

No.

1

2

3

4

5

ON/OFF

(CN7)

ON

0

OFF

24V

24V

0

24V

0

24V

0

13~3V
1.6
~0.4V

5V
3.8V

24V

0

24V

0

OFF

ON

24V

0

No detecting detecting

OFF LED ON

Signal

name

FD Vp

TGOD

Vp

Vp

*B

B

*A

A

Function

DC+24V

Exit cover open/close
detecting signal

DC+24V

DC+24V

Original reverse/exit
motor drive signal

Signal

name

AN Vp

HANS

RDDLED

Vp

DRSOL

Destination

Exit cover open/close
detecting switch CN25-1
Exit cover open/close
detecting switch CN25-2
Original reverse/exit
motor CN26-1
Original reverse/exit
motor  CN26-2
Original reverse/exit
motor  CN26-3
Original reverse/exit
motor  CN26-4
Original reverse/exit
motor  CN26-5
Original reverse/exit
motor  CN26-6

close

open

Function

DC+24V

Original reverse/exit
sensor output signal
S e n s o r   L E D   c o n t r o l
signal

DC+24V

Original reverse/exit
sensor drive signal

Destination

Connecting harness for
copier  CN34-8
Connecting harness for
copier  CN34-9
Connecting harness for
copier  CN34-10
Connecting harness for
copier  CN34-11
Connecting harness for
copier  CN34-12
Connecting harness for
copier  CN34-7
Connecting harness for
copier  CN34-2

Pin

No.

1

2

3

4

5

6

7

ON/OFF

(CN8)

Signal

name

IADFRX

ADFRX

GND

IADFTX

ADFTX

ADFCHGES

ADFFSFD

5V

0

No detecting detecting

Pulse signal

Pulse signal

Function

ADF reverse receiving
signal

ADF receiving signal

Ground

ADF reverse
transmission signal

ADF transmission signal

Original change
subscription signal
One sided original feed
operation request signal

CN8

1

2

3

4

5

6

7

IADFRX

ADFRX

IADFTX

ADFTX

GND

ADFCHGS

ADFFSFD

R39

4.7k

R92

100

R40

4.7k

+5V

DA2

DA1

DT

2

3

1

+5V

R70

1.0k

R43

4.7k

11

IC4

13

12

ADFFSFD

ADF

CHGES

+5V

IC10

1
2

14
13

6
7

10

11

*

RI1

RI1
DO1

*

DO1

*

RI2

R12
DO2

*

DO2

RO1

DI1

*RE

DE

RO2

DI2

3
15

4

12
5

9

79

80

IC13

24

TXEN

RxD

TxD

SD003

1.ADF CPU P.C.B.

This circuit allows both serial and parallel communication between the copier

and the ADF. IC10 is used for serial communication. Data is transferred as

both a normal and inverse signal, so that any line noise will be cancelled out by

adding the two signals together inside IC10. The ADF also communicates with

the copier using 2 parallel data lines. One line for output using IC4 and Q3

(buffer) and the other for data input using pull up resistor.

1) Original size detecting switch ( SWH1/SWH2 )

Original size detecting switch (2) and (3) are micro switches for detecting original

width, and output of these switches are input to gatearray ( IC14 ) via a noise

filter which consists of resistors and capacitors, then input to the CPU through

data bus.

CN1

CN1

4

5

6

7

SWH1
GND

SWH2
GND

+5V

+5V

R42

4.7k

R41

4.7k

R23

10k

R22

10k

IC14

58

59

P5

P6

C24
0.1

C25

0.1

SD004

2) Original size detecting sensor (1) (STL)

The original size detecting sensor (1)  consists of a photointerruptor for detecting

original length, and output of this sensor is input to gatearray ( IC14 ) via noise

filter which consists of resistors and capacitors, then input to the CPU through

a data bus.

3) Original detecting sensor (EMP)

The original detecting sensor consists of a photointerruptor, and output of this

sensor is input to gatearray ( IC14 ) via noise filter which consists of resistors,

capacitors,  and Q14, then input to the CPU through a data bus.

CN1

1

2

3 VL

STL

GND

+5V

+5V

R37 4.7k R10

10k

C26

0.1

IC14

54 P1

SD005

1
3

2

VL

EMP

GND

R1

180

CN2

15k

R75

+5V

GND

R9

10k

C26

0.1

GND

1B

GND

DT

C2

E3

10k

R36

+5V

TP3

53

IC14

P0

SD006