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MX-FNX2/AR-PN1/MX-RBX1  OPERATIONAL DESCRIPTION  5 – 15

The horizontal registration drive for the punch slide unit is provided
by the punch horizontal registration motor (FPSM). The home posi-
tion of the punch slide unit is detected by the punch horizontal reg-
istration home position sensor (FPSHPD). The punch slide unit
detects the trailing edge of sheets using the trailing edge sensor
(FPTD) and the horizontal registration sensors (FPSD1 through 4),
and causes a move to a specific position matching the trailing edge
of each sheet (in relation to the size of the sheet).
The horizontal registration operation takes place as follows:
1)

When the leading edge of a sheet from the host machine is
detected by the trailing edge sensor (FPTD), the punch hori-
zontal registration motor (FPSM) starts to move the punch
slide unit toward the front.

2)

When the horizontal registration sensor (FPSD1 through 4)
suited to the paper size signal from the host machine detects
the rear edge of the sheet, the punch horizontal registration
motor (FPSM) causes a farther move to a specific position,
and stops the punch slide unit.

3)

When the trailing edge sensor (FPTD) detects the trailing edge
of the sheet, the drive of the feed motor (FFM) is stopped,
thereby stopping the sheet. Then, the punch motor (FPNM) is
driven to punch holes in the sheet.

4)

When the punching operation ends, the feed motor (FFM) of
the fisher unit is driven and, at the same time, the punch hori-
zontal registration motor (FPSM) is rotated in reverse to return
the punch slide unit to its home position.

5)

For each sheet that arrives in succession, the punch slide unit
is returned to its home position, and is caused to repeat steps
1 through 4.

The microprocessor (CPU) on the finisher controller PCB is pro-
grammed to check for jams in the finisher/saddle/puncher (option)
at such times as set in advance. It identifies a jam in reference to
the presence/absence of paper at a specific sensor. If a jam is
found, the finisher controller PCB communicates the nature of the
jam to the host machine in the form of a code(which may be
checked in service mode of the host machine).

Punch side resist motor
(FPSM)

(direction of

paper delivery)

Punch slide unit

Trailing edge sensor
(FPTD)

Paper

Punch side resist home position sensor
(FPSHPD)

Horizontal registration sensor 1 (FPSD1);
used to detect the edge of sheets of A3, A4,
8.5" x 11", 11" x 17".

Horizontal registration sensor 2 (FPSD2);
used to detect the edge of sheets of B4, B5,
8.5" x 11"R, 8.5" x 14".

Horizontal registration sensor 3 (FPSD3);
used to detect the edge of sheets of A4R.

Horizontal registration sensor 4 (FPSD4);
used to detect the edge of sheets of B5R.

Punch

: CW rotation

: CCW rotation

Feed motor (FFM)

Trailing edge sensor
(FPTD)

Horizontal registration
sensor (FPSD1 - 4)

Punch home position
sensor (FPHPD)

Punch horizontal registration
home position sensor (FPSHPD)

Punch horizontal
registration motor (FPSM)

Punch motor (FPNM)

FFPD

FED

FAD

FPHPD

FED
FAD
FFPD
FPHPD

: Entry paper sensor
: Alignment tray sensor
: Bookbinding position sensor
: Punch home position sensor

MX-FNX2/AR-PN1/MX-RBX1  OPERATIONAL DESCRIPTION  5 – 16

* Variable depending on the paper size. (Because the paper feed speed may differ according to the paper size. (A4:1.0 sec.))

* Variable depending on the paper size. (Because the paper feed speed may differ according to the paper size. (A4:1.4 sec.))

e. Power-On Jam
Paper is detected inside the finisher at power-on or when the door is closed.

f. Door Open Jam
The finisher is disconnected from its host machine or the front door, or the upper cover is opened while the system is in operation (paper on the
move).

g. Staple Jam
The staple drive home position sensor (FSHPD) does not go OFF 600 msec after the stapler is driven. Or, it does not return to its home position
(where the sensor goes ON).

Feed motor (FFM)

Entry paper sensor
(FED)

Jam check

Feed motor (FFM)

Entry paper sensor
(FED)

Jam check

Normal

Jam

approx. 1.0sec.

*

Host machine delivery signal

approx. 1.0sec.

*

Host machine delivery signal

Feed motor (FFM)

Entry paper sensor
(FED)

Jam check

Entry paper sensor
(FED)

Jam check

Normal

Jam

approx. 1.4sec.

*

Feed motor (FFM)

approx. 1.4sec.

*

Binding position
sensor (FFPD)

Jam check

Binding position
sensor (FFPD)

Jam check

Normal

Jam

1080 ms

Stack delivery motor
(FAM)

Stack delivery motor
(FAM)

1080 ms

Staple motor (FFSM)

Binding position
sensor (FFPD)

Jam check

Binding position
sensor (FFPD)

Jam check

Normal

Jam

approx. 16.2sec.

approx. 16.2sec.

Staple motor (FFSM)

MX-FNX2/AR-PN1/MX-RBX1  OPERATIONAL DESCRIPTION  5 – 17

a. Outline
When the host machine is turned on, it supplies the finisher controller PCB with 24VDC and 5VDC. 24VDC is for the motors and clutches.
24VDC and 5VDC are also supplied as a relay pass drive, 5VDC is used to drive sensors and ICs on PCBs.
If a punch unit (option) is installed, power is also supplied to the punch controller PCB.
Some of 24 VDC used to drive motors is cut off when the joint switch (FJSW), front door switch (FFDDW), or stapler safety switch (FSSSW) is
open.
The block diagram of the power supply system is below.

b. Protective Mechanisms
A circuit breaker (CB1) is monitored to protect the 24 VDC system used to drive the motors against overcurrent. The 24-V system used to drive
the feed motor (FFM), paddle motor (FPM), and stack delivery motor (FAM) is equipped with a fuse which melts in the presence of overcurrent.

a. Outline
When the host machine is turned on, the punch unit is supplied by the finisher controller PCB with 24-V and 5-V power.
The 24-V power is used to drive the motors, while the 5-V power is used by sensors and the ICs on the punch controller PCB.
The 24-V power to the motors will be cut off when the joint switch (FJSW) or the front door switch (FFDDW) of the finisher unit is open.
The following is a block diagram for the power supply system:

b. Protective Mechanisms
The 24-V system used to drive the punch motor (FPNM) and the punch horizontal registration motor (FPSM) is equipped with a built-in fuse
which melts in the presence of overcurrent.

Finisher
controller PCB

Punch controller PCB
(punch unit; option)

Relay interface PCB

Host

machine

Circuit Breaker

(CB1)

Circuit protector

(CP2)

24VC

5VDC

5V

5V

24V

24V

24V

Clutch

Motor

Motor

Joint switch

(FJSW)

Front door switch

(FFDDW)

Stapler safety switch

(FSSSW)

Sensor

Logic system

24 V

5 V

Finisher
controller
PCB

24 V

5 V

5 V

Punch controller PCB

Motors

Sensors

Logic system

MX-FNX2/AR-PN1/MX-RBX1  DISASSEMBLY AND ASSEMBLY  6 – 1

âºíuÇ´

Service Manual

 

1)

Turn off the host machine, disconnect the saddle stitch finisher
connctor.

2)

Free the lock, and remove the saddle stitch finisher from the
host machine.

1)

Remove the delivery tray.

1)

Open the front door, and remove the knob.

2)

Remove the front cover.

1)

Remove the rear cover.

1)

Remove the front cover. (See (2).)

2)

Remove the rear cover. (See (3).)

3)

Open the upper cover, and remove the cover band.

4)

Detach the processing cover, and remove the upper cover.