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MX-FN19  MAINTENANCE  4 – 72

5) Turn the gear [1] into the arrow direction, and move the punch

module [2] to the back side.

6) Hold the pawl of the tie wrap with lock [1], and remove it.

(Remove without cutting the tie wrap.)

7) Disconnect the three connectors [2], and remove the screw [3].

Then, remove the harness guide [4].

8) First, lift the front side of the punch model [1], and move it in

the arrow direction. Then, remove the punch module [1].

9)

Disconnect the connector of the LED PCB [1].

10) Remove the slide shaft support [1] and sensor base (lower) [2].

CAUTION: The punch module that is set up as a service part is not

equipped with the slide shaft support [1]. When replac-
ing it, be sure to install the slide shaft support that has
been used in advance. Pay close attention to prevent
failure in installation of it causing malfunctions.

e. Removing LED PCB
1)

Remove the screw [1] to remove the LED PCB [2].

a. Removing the outer cover
1)

Remove the three screws [1] to remove the rear cover [2].

[1]

[2]

[2]

[1]

[2]

[4]

[3]

[1]

[1]

[1]

[2]

[1]

[2]

[1]

[2]

MX-FN19  MAINTENANCE  4 – 73

b. Removing the upper cover
1) Open the front door [1], and remove the three screws [2]. Pull

out the dial [3], and remove the upper cover [4].

c. Removing photo sensor PCB
1) Remove the screw [1].
2) Disconnect the connector [2], and remove the photo sensor

PCB [3].

a. Removing right guide
1) Remove the four screws [1] to remove the right guide [2].

b. Removing waste full sensor PCB
1)

Remove the screw [1], disconnect the connector [2], and
remove the waste full sensor PCB unit [3].

a. Removing rear cover
1)

Remove the three screws [1] to remove the rear cover [2].

b. Removing punch controller PCB
1)

Remove the two screws [1] and disconnect the seven connec-
tors [2]. Then, remove the punch controller PCB [3].

[2]

[1]

[4]

[3]

[4]

[2]

[1]

[3]

[2]

[1]

[2]

[1]

[2]

[3]

[1]

[2]

[2]

[2]

[2]

[1]

[3]

MX-FN19  ELECTRICAL SECTION  5 – 1

MX-FN19

Service Manual

 

FSM

FBES

FSWM

FASM

FSHC

FBR

RS

FFD

RRS

FPDD

FSLD2

DC24V5

FSD

FSTD

FSJOGD

FASHPD

FSTHPD

FFM

FAM

FFJM

FRJM

DC24V3

DC24V1 DC5V DC3V

CPU

Expansion

port

Expansion

port

DAC

FSAD

FSWOPD

FCCD

FBED1

FED

FAED2
FAED3

FFJHPD

FRJHPD

DC24V5

DC24V4

FSHPD

FAED1

FSWHPD

FSTPD

EEPROM

Control section

FBED2

FSLD1

FIN

RRS

FFSM

Txd

Rxd

DTR

DSR

Reset

DC24V

DC24V3

DC24V2

FFDD

DC24V3

FAO

RC

DC24V3

FTL

M1

FTL

M2

FJF

M
FJPID

DC24V2

DC24V1

FJPM

FIN

RPS

FPUC

FJPOD
FJPDD

FFANLK

FAED23

F24V

FPSW

1-3

FDSW

1-8

FCD

FSHTD

FCD

DC24V4

FCD

FAED21
FAED22

FSSUC

FSSUC

Finisher

Punch communication circuit

Saddle communication circuit

Paper pass unit

Main unit or inserter

Communication

circuit

Reset circuit

Power supply control circuit

SW

make/brake

detection

circuit

Driver

circuit

Driver

circuit

Driver

circuit

Driver

circuit

Sensor

input

circuit

Sensor

input

circuit

MX-FN19  ELECTRICAL SECTION  5 – 2

FS

IFM

FSVPPD

FS2

DFS

FS

FCS

FSFOE

FSFM

FSFOHPD
FSPPHPD

FSPPPD
FSAHPD

FSSIND

FSLGHPD

FSLGTD

FSFS

FS1

DFS

FSFS

TM

FSRS

TM

FS

LGM

FPPM

FSLGE

FSINDSW

FSPIND

FSPDD

FSTPD

FS1PD
FS2PD
FS3PD

FS

FOM

DC24V1

CPU

FSGM

DC24V3

FSJM

Txd

DC24V3

Rxd

DC5V DC3V

FSSHP2

FSSD1
FSSD2

FSFDC

FSPPHPC

FSLGTC

FSSHP1

FSCRPD
FSGHPD

FSBHPC

FSPSW

1

FSDSW

1-8

FSINDD

FSAHPC

FSFOHPC

FSEJDC

Saddle stitch section

From finisher

SW

make/brake

detection

circuit

Sensor

input

circuit

Expansion

port

Control section

Communication

circuit

Reset circuit

Driver

circuit

Driver

circuit

Power supply control circuit