Horizon PC-P430 User Manual

I

Introduction

*US504013*

●This service manual is for the following product.

Paper Cutter PC-P430

●Prior consent

This service manual is intended for use when repairing and maintaining this
machine to keep it in top working condition. In order for you to safely perform
repair and maintenance work on this machine, please make sure that you fully
read and understand all of the notes related to safety that are written throughout
this service manual.

- Horizon International, INC. cannot accept responsibility for any loss, damage,
or injury as a result of unauthorized modication, misuse, or use outside
the machine’s specications, or any unsuitable or inadequate maintenance
performed by you or by authorized service personnel.

- Horizon International, INC. is continuously working to improve the design
and performance of all of its products. Consequently, the contents of this
service manual may be changed at any time in the future without prior notice.
Furthermore, Horizon International, INC. bears no additional liability for any
added contents.

- All rights with regards to copyrights are reserved. The copying or distribution
of any part or whole of this manual is strictly prohibited unless prior written
permission is obtained directly from Horizon International, INC.

●Safety Precautions

- In order to perform repair or maintenance work safely on this machine, thoroughly
read all of the warnings and cautions related to safety that are written in this
service manual BEFORE commencing any operation. Failing to heed the safety
precautions in this manual may lead to accidents resulting in injury or death.

- The maintenance procedures and safety precautions described in this service
manual are only effective if the repair/maintenance procedures specied for this
machine are followed.

- Precautions that if not followed correctly may lead to accidents resulting in injury

or death are indicated by this

- Precautions that if not followed correctly may lead to accidents resulting in

machine damage or malfunctions are indicated by this

- It is impossible for Horizon International, INC. to prevent all possible dangers
related to this product and its use. Therefore, the precautions shown in this
service manual and warning labels displayed on the product do not completely
warn against all possible dangers.

- Some of the diagrams in this service manual are drawn with covers removed to
describe the details or internal sections of the machine.

WARNING

heading.

CAUTION

heading.

●The meanings of symbols are following.

This will help you to avoid an incorrect operation which may cause

Important

problems with the machine, or make it necessary to go back to a
previous step.

●Directions are described as followings in this manual.

Left

Rear

Front

Right

When you print this manual, use the newest Adobe Reader.

Note This indicates a helpful hint.

Additional
Information

Attention

Edited and Published by Horizon International, Inc.
140927/PC-P430/00E/HN/KJ US504013-00(001)

This indicates additional information which will help you to operate
the machine efciently.

This explains functional limitations and restrictions on the
operation of the machine.

1

II

Symbols used in this manual

1. Wiring color character code

Single color character code
BRN = Brown = Brown
RED = Red = Red
GRY = Grey = Grey

YEL = Yellow = Yellow
GRN = Green = Green

BLU = Blue = Blue
VIO = Violet = Violet

* The following wiring color character

codes have been modied. The
new codes are used from January

2013.

- BLU/GRY (Grey)
→ BLU/LBLU (Light blue)

- BLU/VIO (Violet)
→ BLU/PNK (Pink)

WHT = White = White
BLK = Black = Black

ORN = Orange = Orange
PNK = Pink = Pink

LBLU = Light blue = Light blue

BRN *=The (*) that follows the color mark is the dark gray band that is
attached to one of the wires for identication purposes when there are 2 of
the same color wires within the same bundle of wires.

RED/BLU = The /BLU that follows the color mark indicates that the mother
color of the wire is blue, and that on top there is a red colored stripe. *

2. Identication characters of electrical parts

A** =Inverter/driver/amplier
B** =Sensor
C** =Capacitor
E** =Heater
F** =Fuse
G** =Power supply
H** = Indicating lamp

/illumination
K** =Contactor/relay/SSR
L** =Reactor
M** =Motor

PG** =Encoder
Q** = Circuit protector

/Breaker
QPM** =(Multi layer) board
QPW** =(Single layer) board
RY** =Relay (on the board)
S** =Switch
T** =Transformer
X** =Terminal board/connector
Y** =Solenoid/clutch/Valve etc.
Z** =Noise Filter

Circuit conguration identication characters and symbols

AC =Alternating current
BL =Short circuit connector
COM =Common terminal
CON =Connector
CW =Clockwise direction
CCW =

Counterclockwise direction
DC =Direct current
DSW =Dip switch
F.G =Frame ground
GND =Ground
JSW =Jumper switch

1

1

2

2

Junction connector, or terminal board

3

3

4

4

1

1
2

2

Round connector (CPC)

3

3

4

4

Short circuit connector BL

MOD =Module connector
NC =
NO =

Normal [closed] contact terminal

Normal [open] contact terminal
SSR =Solid state relay
VR =Volume
SIG =Signal voltage
S/N =Machine number
BSD =Block schematic diagram
*X## =* Connector

2

III

Cautions when undertaking service operations - Part 1

●The description in this page is common issue in the Horizon products.
The description unrelated to this machine may be contained.

WARNING

WARNING

Beware of rotat­ing objects.

Do operations
alone.

Wait ten second

CAUTION

before turning on
the power again.

WARNING

When replacing parts or performing other such main­tenance operations, turn the power off unless it is
necessary to keep the power on. Also, lock the Power
switch before doing service operations.

-

This prevents another person from turning on the Power
switch without knowing that you are doing service opera­tions.

-

There are three holes for keys. If more than one person
does service operations at the same time, each person
should lock the Power switch separately.

If you need to do service operations while operat­ing the machine, be extremely cautious of rotating
objects such as belts and pulleys etc. Otherwise,
it may cause the severe personal injury.

Always do operations alone when operating
the machine. This manual is written on the
assumption that operations will be done by
one person.

When turning the power back on, wait for
approximately ten seconds after turning the
power off before turning it on again.

Lock the keys when you
turned off the Power switch.

CAUTION

Shield Bag

Clip

Wrist
Strap

Beware
of static
electricity

P.C.Board

Plastic Cover

Machine
Frame

Even an small amount of static electricity that it can­not be felt by people will damage the board or ROM.
Exercise caution on the following points when han­dling the board or ROM.

Keep Board in a
shield bag.

Do not put Board and ROM on the machine, especially on
the plastic cover. (No problem on the conductive plate.)
And keep the Board and ROM away from the insulators.
Insulators: Plastic, form polystyrene,
chemical ber fabric, dry paper, etc.

When replacing the Board and ROM, or setting the DIP
switches and volumes on the Board, wear a wrist strap,
and connect the clip to the machine frame (not painted
surface).

Conductive
Sponge

Shield Bag

Put the ROM on a
conductive sponge
and keep in a shield
bag.

CAUTION

Use the correct
parts.

Prepare a special

CAUTION

wrench when you
replace the safety
switches

When replacing parts, use the parts shown
in the parts book unless commercially avail­able parts with exactly the same functions
and performance can be obtained.

Special screws are used to mount the safe­ty switches, which detects that the cover is
opened or closed. This prevents the users
from removing the safety switches.

3

IV

Cautions when undertaking service operations - Part 2

●The description in this page is common issue in the Horizon products.
The description unrelated to this machine may be contained.

CPU

CPU

Lithium
battery

Batterie au
lithium

CAUTION

If the battery is replaced with the wrong one, it way cause an explosion.
The battery should be kept in a place where the temperature does not rise
above 60 degrees Celsius (140 degrees Fahrenheit).
Do not throw away the used battery as household waste.
Dispose of or recycle the battery according to the regulations and/or ordinanc­es of your local government.

Un remplacement de la batterie par une mauvaise batterie peut entraîner une
explosion.
La batterie doit être conservée dans un endroit où la température ne dépasse
pas 60 degrés Celsius (140 degrés Fahrenheit).
Ne pas jeter la batterie usagée avec les déchets ménagers.
Jeter ou recycler la batterie conformément à la réglementation et/ou
aux décrets des autorités locales.

Handling the on-board lithium battery

Manipulation de la batterie au lithium intégrée

Handling the digital counter

CAUTION

A battery is mounted inside the digital counter.
Dispose of or recycle the battery according to the regulations and/or
ordinances of your local government.

Manipulation du compteur numérique

Une batterie se trouve à l’intérieur du compteur numérique.
Jeter ou recycler la batterie conformément à la réglementation et/ou
aux décrets des autorités locales.

4

Contents

I Introduction ....................................................................................................... 1

II Symbols used in this manual ........................................................................... 2

III Cautions when undertaking service operations - Part 1 ................................. 3

IV Cautions when undertaking service operations - Part 2 ................................. 4

1 General .............................................................................. 7

1 - 1 Differences from the PC-P43 .................................................................... 8

1 - 2 Adjusting the Angle and the Height of the Knife ........................................ 9

1 - 3 Machine Safety Features ........................................................................ 11

2 Troubleshooting ............................................................... 15

2 - 1 System Errors ......................................................................................... 16

2 - 2 Monitor LEDs Do Not Light ..................................................................... 19

2 - 3 The Machine Does Not Start by Pressing the Cutting Buttons ............... 20

2 - 4 The Machine Stops (System error 8 or 9) ............................................... 21

2 - 5 The Machine Stops Without a Beeping Sound ....................................... 22

2 - 6 The Last Few Sheets Are Left Uncut ...................................................... 23

2 - 7 Cut Size Is Not Accurate ......................................................................... 24

2 - 8 Skew Cut ................................................................................................. 25

2 - 9 The Book Spine Is Crashed / The Book Is Contaminated ....................... 26

2 - 10 Vague Cut Line ..................................................................................... 27

3 - 4 Removing the Back Table ...........................................................................35

3 - 5 Removing the Front Table ...........................................................................36

3 - 6 Removing the Clamp ...................................................................................38

3 - 7 Removing the Knife Holder .........................................................................39

3 - 8 Removing the Cam .....................................................................................40

3 - 9 Removing the Backgauge Drive Section .....................................................41

3 - 10 Removing the Motor ..................................................................................42

3 - 11 Replacing the Knife ...................................................................................43

4 Electrical Parts Location ..................................................... 51

4 - 1 PC-P430 Electrical Parts List ......................................................................52

4 - 2 Motor and Switch Locations and Names .....................................................54

4 - 3 Other Electrical Parts Locations and Names ..............................................55

5 Circuit Boards ..................................................................... 59

5 - 1 Board Locations and Names .......................................................................60

5 - 2 QPW-968 (P115811) Control Board ...........................................................61

5 - 2 - 1 QPW-968 Board Diagram ...................................................................................... 61

5 - 2 - 2 QPW-968 LED Location ......................................................................................... 62

5 - 3 QPW-959 (P114711) Cut Line LED Current Control Board ........................63

5 - 4 QPW-969 (P115911) LED Board ................................................................64

5 - 11 ROM Version History ................................................................................65

3 Descriptions of Mechanisms............................................ 31

3 - 1 Cutting and Clamp Section ..................................................................... 32

3 - 2 Backgauge Section ................................................................................. 33

3 - 3 Safety Cover Section .............................................................................. 34

6 Electrical Circuits ................................................................ 69

6 - 1 SD Circuit ....................................................................................................70

6 - 1 - 1 SD1 AC Power Circuit ............................................................................................ 70

6 - 1 - 2 SD2 Input and Output System Circuit .................................................................... 71

END SHEET ...............................................................................................74

5

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1 General

1

General

PC-P430

PC-P430

7

1 General

Differences from the PC-P43

8

PC-P430

1 - 1

1 - 1 - 1

Differences from the PC-P43

What Is Improved

■ Safety devices are enhanced.

K01/K02 contactors
are added.

S10 Cover switch is
added also at left side.

• In addition to the original mechanical lock guard, two inter-

lock contactors K01 and K02 are added to have a redundant
circuit.
The fault self-checking function is also equipped. (See below
for details.)

■ The fault self-checking device is equipped.

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1_1_1A

■

The Power switch is omitted and there is the Key switch only.

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1_1_1C

■

The Knife Lower Limit switch is mounted on the P.C.board.

■ The bulb is changed to the white LED.

QPW-960

404018
1_1_1E

• For the high brightness LED, new two QPW-960 Cut Line

LED Boards and the QPW-959 Cut Line LED Current Control
Board are added.

404018
1_1_1B

• The lamp shows where a fault is according to the fre-

quency of ashes.

(See page 16 for details.)

QPW-968

• The knife is set by the Toggle switch on the QPW-968 control

board to stop at the lower limit. (See page 61 for details.)

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1_1_1D

1 - 2

Adjusting the Angle and the Height of the Knife

1 - 2 - 1

Adjusting the Angle and the Height of the Knife

1 Place the sheets. (Fig.1)

• Cut the sheets of 64 gsm (the common copy paper) into

strips, and place four sheets on the left end and one
sheet on the right end.

• The numbers of sheets differ between the right side and

left side because the left side of the knife cuts into the
sheets more deeply than right side (the left side of the
knife holder is pulled) when the machine cuts the sheets
actually. Therefore, the stack on the left side must be
higher by three sheets.

2 Set the Toggle switch on the QPW-968 to

"ADJ". (Fig.2)

→

The three LEDs at the monitor light up in order. The LED

L1 on the QPW-968 control board is lit.
(See Fig.7 on the next page.)

3 Press the Right and Left Cutting buttons.

• The knife will lower and stop at the lower limit.

4 Turn off the Key switch.

5 Adjust the height. (Fig.3)

• Loosen the lock nut, and adjust the height by turning the

adjusting screw so that the knife edge touches the top
sheet of the four sheets on the left side.

4 sheets on the left

Fig.1 Placing the Sheets

Monitor

LEDs light up in order.

QPW-968 Control
Board Toggle Switch

1 sheet on the right

404018
1_2_1A

Right-hand Screw
Lock Nut

Adjusting

Loosen

Lower

Loosen

Do not turn the adjusting screw more than ± 45 de­grees from the factory setting position.

Screw

Left-hand Screw
Lock Nut

404018
1_2_1C

Fig.3 Adjusting the height

Locking Screw

6 Adjust the angle. (Fig.4)

• Loosen the locking screw, and adjust the angle by turn-

ing the eccentric pin so that the knife edge touches the
sheet on the right.

(Continued to the next page.)

1

General

ADJ

NORMAL

Fig.2 Toggle Switch on the Board

Adjusting the Angle and the Height of the Knife

404018
1_2_1B

404018
1_2_1D

When you turn the eccentric pin using
the straight slot screwdriver, only the
right side of the knife moves down and
up.

Fig.4 Adjusting the angle

Eccentric Pin

PC-P430

9

1 General

(Continued)

Machine Safety Features

10

PC-P430

7 Check the points shown in Fig.5 and return

the toggle switch on the board to "NOR­MAL". (Fig.2)

8 Press the Right and the Left Cutting but-

tons.

Turn on the Key switch, and press the Right and the Left
Cutting buttons together. The knife will move up and stop at
the upper limit.

9 Turn off the Key switch.

10 Lower the knife. (Fig.6)

• Loosen the lock nut and turn the adjusting screw by 30

degrees as shown in the drawing, and then tighten the
lock nut. After you make this adjustment, the knife cuts
into the cutting stick by 0.5 mm (0.02").

The lower knife height results in the deeper cut into the
cutting stick. It is effective to solve the problem that the
sheet remains uncut on either side. If the knife height is
too low, the cutting stick needs to be replaced earlier.
Adjust the knife height so that the knife cuts into the
cutting stick by 0.5 mm (0.02").

11 Cut the sheets as a test.

• Cut the sheets (width: more than 400 mm [15.8”], stack

height: higher than 20 mm [0.9”]) and check that the no
sheets are left uncut.

■ As you operate the machine to adjust the angle and

the height of the knife, the LEDs on the QPW-968

control board are lit as shown in the table of Fig.7.

The lock nuts are not
loosened.

Fig.5 Point to be checked

Loosen

Lower

Loosen

Right-hand
Screw Lock Nut

Left-hand
Screw Lock Nut

The locking screw
is not loosened.

The eccentric pin is not
projecting.

Right-hand Screw
Lock Nut

Adjusting Screw

Turn the screw counter­clockwise by 30 degrees to
lower the knife.

The knife cuts into the
cutting stick by 0.5 mm
(0.02").

Left-hand Screw
Lock Nut

404018
1_2_1E

404018
1_2_1F

■ LEDs on the QPW-968 control board

on, off

Lighting Condition L2 L1 L3 L6

When the Toggle switch on the board
is set to "ADJ"

When S05 Left Cutting button and
S06 Right Cutting button are pressed
at the same time

When the knife starts lowering

When the knife reaches the lower
limit

When S05 Left Cutting button
and S06 Right Cutting button are
released

When the Toggle switch on the board
is set to "NORMAL"

When S05 Left Cutting button and
S06 Right Cutting button are pressed

When the knife starts lifting

When the knife reaches the upper
limit

When S05 Left Cutting button
and S06 Right Cutting button are
released

S05 Left Cutting button and S06 Right Cutting button pressed at the same time

L2:
L1: Toggle switch
L3: S04 Cam Switch A
L6: S03 Cam Switch B

Fig.6 Lowering the knife

Fig.7 LEDs Lighting Condition

1 - 3

Machine Safety Features

1 - 3 - 1

Machine Safety Features

Safety Precautions

. The machine has many safety features as shown in this

1

page. However, do not forget that the machine needs these
features because the machine has hazardous function and
parts.

. If one of these features are removed or converted, it consid-

2

erably increases risk for personal injury.

. The machine will be broken eventually. Though this machine

3

is a table top machine, the users must not try to x the

machine. It can cause sever personal injury.

Service technicians should understand these safety precau­tions 1. through 3., and instruct the users.

(Cutting) (Cutting) (Cutting)

The machine is protected by
the covers which prevent op­erator's hands from reaching
any dangerous parts during
operation. Fingertips and
clothes will not be caught by
the dangerous parts.

The authorised operator
should be assigned to super­vise use of the machine.
Only that person should
have access to the key of the
switch.

404018
1_3_1B

Lock!

When the door for replacing
the knife is open, the safety
interlock function works and
the cutting operation can not
be started.

Lock!

If the safety cover is open,
the knife is locked both elec­trically and mechanically.

404018
1_3_1

K10

K11

D

The machine cuts the sheets
only when both Cutting buttons
are pressed within 0.5 seconds.
While the machine is cutting, the
operator is using the two hands
to press the both Cutting buttons.
Therefore, operator's hands can­not be under the knife.

1

General

Lock!

While the machine is cutting,
the safety cover is locked
mechanically. Therefore,
other people cannot open
the cover and put their hands
in the machine, while the ma­chine is cutting.

404018
1_3_1A

If one (or both) of the Cutting
buttons is released while the
machine is cutting, the knife
will move up (move in the
safer direction).

404018
1_3_1

Machine Safety Features

The knife can be replaced
without touching it directly. Keep
the removed knife in the sheath.
Even if the knife is dull, the knife
can cause severe personal in­jury. Service technicians should
retrieve the removed knife.

C

The machine is equipped with
a lever which moves the cut
sheets forward. The opera­tor can remove the cut sheets
safely by pulling the lever to
the operator side. The operator
does not need to put the hands
under the

knife.

The machine has the motor con­tactors for normal cycle and the
reverse cycle. When one of the
contactor is turned on, the other
contactor cannot be turned on. If
the switches to detect the knife
position are broken, the machine
stops immediately.

404018
1_3_1

E

PC-P430

11

1 General

12

PC-P430

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1

General

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PC-P430

13

1 General

14

PC-P430

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2 Troubleshooting

2

Troubleshooting

PC-P430

PC-P430

15

2 Troubleshooting

System Errors

16

PC-P430

2 - 1

Error Lamp

1

2

System Errors

If there is a problem with the electrical parts, the lamp ashes to indicate the part that has a
problem.

• The lamp ashes by the error number in 0.4 second cycles, and turns off for
one second. The lamp repeats ashing and being off.

• Example of ashing (In case of the error 2)
On for 0.2 seconds → Off for 0.2 seconds → On for 0.2 seconds → Off for one second.

• The machine is able to run after a buzzer sounds and the power is turned off
and then turned on again.

404018
2_1_1A

Description and Causes Solutions

Deposition of

K10 Contactor for Normal Rotation

Function Error of

K10 Contactor for Normal Rotation

Deposition of

K11 Contactor for Reverse Rotation

Function Error of

K11 Contactor for Reverse Rotation

Turn off the power and check that the contact points on K10 are not damaged.
If the contact points are not damaged, check the wiring/connection between terminals 13 and 14 on K10 and CON2 on the QPW-968
control board. If these are OK, the board is defective. Replace it.

Check whether the L5 on the QPW-968 control board is lit while the knife is running in normal direction.
If the LED is lit, go to 1. If not, go to 2.

1. The LED is lit.

The correct signals are input from K10 to the board, but the signals
are not being processed correctly. Replace the board.

Turn off the power and check that the contact points on K11 are not damaged.
If the contact points are not damaged, check the wiring/connection between terminals 13 and 14 on K11 and CON2 on the QPW-968
control board. If these are OK, the board is defective. Replace it.

Check whether the L4 on the QPW-968 control board is lit while the knife is running in reverse direction.
If the LED is lit, go to 1. If not, go to 2.

1. The LED is lit.

The correct signals are input from K11 to the board, but the signals
are not being processed correctly. Replace the board.

2. The LED is not lit.

Check the wiring/connection between terminals 13 and 14 of K10 and
CON2 on the QPW-968 control board. If this is OK, replace K10.

2. The LED is not lit.

Check the wiring/connection between terminals 13 and 14 on K11 and
CON2 on the QPW-968 control board. If this is OK, replace K11

.

Error Lamp

3

4

5

6

7

Description and Causes Solutions

Deposition of K01 Interlock Relay 1

Function Error of K01 Interlock Relay 1

Deposition of K02 Interlock Relay 2

Function Error of K02 Interlock Relay 2

Deposition of S07 Safety Cover Switch (Right)

Error 5 or 6 may occur when the safety

cover is opened slowly.

Deposition of S10 Safety Cover Switch (left)

Error 5 or 6 may occur when the safety

cover is opened slowly.

Failure of Interlock Contactor

Drive Element on the Board

Turn off the power and check that the contact points on K01 are not damaged.
If the contact points are not damaged, check the wiring/connection between terminals 21 and 22 of K01 and CON3 on the QPW-968 con­trol board. If these are OK, the board is defective. Replace it.

Check whether the L6 on the QPW-968 control board is lit while the safety cover is closed.
If the LED is lit, go to 1. If not, go to 2.

1. The LED is lit.

The correct signals are input from K01 to the board, but the signals
are not being processed correctly. Replace the board.

Turn off the power and check that the contact points on K02 are not damaged.
If the contact points are not damaged, check the wiring/connection between terminals 21 and 22 of K02 and CON3 on the QPW-968 con­trol board. If these are OK, the board is defective. Replace it.

Check whether the L7 on the QPW-968 control board is lit while the safety cover is closed.
If the LED is lit, go to 1. If not, go to 2.

1. The LED is lit.

The correct signals are input from K02 to the board, but the signals
are not being processed correctly. Replace the board.

Check that the contact points of S07 are not damaged.
If the contact points are not damaged, check the wiring/connection between S07 and CON3 on the QPW-968 control board. If this is OK,
the board is defective. Replace it.

Check that the contact points of S10 are not damaged.
If the contact points are not damaged, check the wiring/connection between S10 and CON3 on the QPW-968 control board. If this is OK,
the board is defective. Replace it.

Replace the control board.

2. The LED is not lit.

Check the wiring/connection between terminals 21 and 22 of K01 and
CON3 on the QPW-968 control board. If this is OK, replace K01.

2. The LED is not lit.

Check the wiring/connection between terminals 21 and 22 of K02 and
CON3 on the QPW-968 control board. If this is OK, replace K02.

8

9

10

S03 Cam Switch A Open Failure

S03 Cam Switch A Close Failure

S04 Cam Switch B Open Failure

S04 Cam Switch B Close Failure

Knife Lock

2

Troubleshooting

See page 21, and check S03.

See page 21, and check S04.

See page 22 and solve the problem.

System Errors

PC-P430

17

2 Troubleshooting

18

PC-P430

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2 - 2

Monitor LEDs Do Not Light

Are power cable connection and Key switch OK?

Monitor

(Ready)

2A

1

404018
2_2_1A

Key

■ See the drawings above and check the following:

The power cable is plugged completely.

1

The Key switch is turned on.

2

The Q00 circuit breaker is not tripped (not popped out).

3

• The supply voltage is present on the outlet.

If these are OK, go to the right column.

2

Q00

2A

3

Is electric circuit OK?

Reference SD circuit

SD1

■ When 24VDC is supplied to the QPW-968 control

board, LED for 24VDC is lit.

• If the LED is lit, go to (1).

• If not, go to (2).

(1) 24VDC is supplied to the control board. Check the wir-

ing/connection between CON4 on the QPW-968 control
board and the QPW-969 LED Board. If it is normal,
replace the QPW-969.

) 24VDC is not supplied to the QPW-968 control board.

(

2

Measure the voltage on the output terminal of G00
Switching Power Supply. Check that 24VDC is output.

• If 24VDC is output, go to (3).

• If 24VDC is not output, go to (4).

(

) Check the wiring/connection between G00 switching

3

power supply and the QPW-968 control board. If it is
normal, replace the QPW-968.

→

See page 70.

2

Troubleshooting

Monitor LEDs Do Not Light

) Check the wiring/connection between G00 switching

(

4

power supply and Z00 noise lter.

PC-P430

19

2 Troubleshooting

The Machine Does Not Start by Pressing the Cutting Buttons

20

PC-P430

2 - 3

The Machine Does Not Start by Pressing the Cutting Buttons

Is safety cover closed?

Actuator

S10

S07

404018
2_3_1A

■ Check the following:

• The Key switch is turned on.

• The Q00 circuit breaker is not tripped.

• The safety cover and the door are closed completely.

• The Right and Left Cutting buttons are pressed together.

If these are OK, check that the red monitor LED ashes when
the safety cover or the door is opened. If the LED ashes, go to
(1). If the LED does not ash, go to (2).

(1) Check the Cutting buttons. Go to the right column.

(

) You should hear a click sound from the actuators of S07/

2

S08/S10 when the safety cover or the door is closed. If
not, S07/S08/S10 is not mounted in the correct posi­tions. Check electric continuity of S07/S08/S10. If this is
normal, Check the wiring/connection between S07/S08/
S10 and CON3 on the QPW-968. If it is OK, replace the
QPW-968.

S08

Are Right and Left Cutting buttons OK?

Monitor

404018
2_3_1B

SD2

■ Check that the LED on the monitor lights when the

Right and Left Cutting buttons are pressed.

• If the LED lights, go to (1).

• If the LED does not lights, go to (2).

(1) The signals from the Right and Left Cutting buttons are

input to the board correctly. Check the power system.
Go to the right column.

) Check the Right and Left Cutting buttons (S05 and S06).

(

2

Remove the terminals from S05 and S06, and check
electric continuity. If you see continuity between the
terminals on each button when you press the button,
the button is normal. If S05 and S06 are normal, check
wiring/connection between S05/S06 and CON3 on the
QPW-968 control board. If this is OK, replace the QPW-

968.

→

See page 71.

Is power system normal?

2

T1

4

T2

6

T3

14

NO

-

A2

2

T1

4

T2

6

T3

14

NO

-

A2

K10K10

K10

L2

5

L3

13

NO

+

A1

K10

Slide the notch
on the K10

SD1

■ If the M01 main motor runs when you slide the notch

on the K10 contactor, go to (1). If M01 does not run,

go to (2).

(1) The power system is normal. Check the wiring/connec-

tion between A1 and A2 of K10 and CON1 on the QPW­968 control board. If this is normal, replace the QPW-

968.

(2) The power system is defective. Remove the terminals

from K10, and check electric continuity between A1 and
A2. If you do not see continuity, replace K10 and K11
together. If you see continuity, the coil is OK. Then check
if you see continuity between terminals 3 and 4, and also
terminals 1 and 2 when you slide the notch. If you see
continuity, check the wiring/connection between K10
and M01. If this is normal, M01 is defective. If you do not
see continuity, replace K10 and K11 together.

K11K11

K11

1

L1

3

L2

5

L3

13

NO

+

A1

1

L1

3

K11

404018
2_3_1C

→

See page 70.

2 - 4

The Machine Stops (System error 8 or 9)

Were Cutting buttons released when knife was at lower limit?

Do Cam switches A and B work?

Reference SD Circuit

SD2

■ Check that L2 LED on the QPW-968 control board

lights when the actuator of the Cam switch A is

pressed. Also check that L3 LED on the QPW-968

M01

QPW-968

lights when the actuator of the Cam switch B is

pressed.

• If the LEDs light, go to (1).

• If the LEDs do not lights, go to (2)

(1) Though the Cam switches A and B are working correctly,

the signals are not correctly processed on the QPW-968
control board. Replace the QPW-968.

S03

Cam

S04

404018
2_4_1A

Description

) Check the wiring/connection between the Cam switches

(

If one of the Cam switches A and B (See the right column.) is

defective, system error 8 or 9 occurs and the machine stops.
Even after the machine stops, the machine keeps beeping until
the cause is corrected. Turn off the power, wait 10 seconds, and
turn it on again to stop the beeping sound.

The

LED on the monitor remains lit.

2

A and B and the QPW-968 control board. If this is nor­mal, check the switches. Go to the right column.

→

See page 71.

Are Cam switches A and B OK?

NO

Cam Switch A

NCNC

S04

COM

COM

S03

NO

NC

NC

■ Check how the Cam switches A and B (S03 and

S04) are mounted. Check that the actuators of

S03 and S04 are not pressed when the knife

is at the upper limit. Then, lower the knife and

stop the knife when S03 and S04 are pressed.

(Slide the notch of the contactor to lower the

knife.) Check that the actuators can be pressed in

more deeply by 0.3 to 0.4 mm (0.012 to 0.016”.)

Cam Switch B

404018
2_4_1C

2

Troubleshooting

■ Check the Cam switches. Remove the terminals from

S03 and S04, and check electric continuity on the termi-

nals on the switches. If you do not see continuity when

the actuators is not pressed, and you see continuity when

the actuators is pressed, the switch is normal.

The Machine Stops (System error 8 or 9)

PC-P430

21

2 Troubleshooting

The Machine Stops Without a Beeping Sound

22

PC-P430

2 - 5

The Machine Stops Without a Beeping Sound

When you released Cutting buttons, did knife go up and stop?

Mounting Screw

Knife Holding Plate

(Loosened)

As this tip is caught by the
sheets, the knife cannot
lower any more.

■

After the machine stopped, did the knife go up and stop

when you released the Cutting buttons ?

• If the knife went up and stopped, go to (1).

• If the knife did not move, go to (2).

(1) Check the screws on the knife holding plate.

• If the mounting screws on the knife holding plate are loos-

ened, the bottom of the holding plate may come off from the
knife during the cutting operation. If the bottom of the knife
holding plate hit the sheets, the machine may stop. Remove
the trim inside the holding plate, and lock the holding plate
completely.

• If the mounting screws on the knife holding plate are not loos-

ened, replace the knife. If the machine still stops during the
cutting operation, the paper quality is not proper. Tell the user
to reduce the amount of sheets which are cut at once.

(2) The machine is locked, go to the right column.

404018
2_5_1A

Is the LEDs on the monitor lit?

Monitor

(Ready)

2A

404018
2_5_1B

Q00

2A

■ Check the LEDs on the monitor.

• If any LED is lit, go to (1).

• If all of the LEDs are out, go to (2).

(1) The electrical circuit is OK. The machine is locked

mechanically. Turn off the Key switch, and check the fol­lowing:

• The crank and the drive cam is mounted correctly.(See page

32 for details.)

• The rink plate in the safety cover section is deformed.
(See page 34 for details.)

• The knife holder cannot move because of the lack of grease
in the grooves to guide the knife holder.(See page 32 for
details.)

(2) The circuit breaker is tripped. If the machine cuts a thick

stack repeatedly in a short time, the circuit breaker will
be overheated and tripped. Tell the user not to use the
machine repeatedly in a short time.

How to reset the knife position.

2

T1

4

T2

6

T3

14

NO

-

A2

2

T1

4

T2

6

T3

14

NO

-

A2

If you slide this notch, the

K10K10

L2

5

L3

13

NO

+

A1

K10

motor runs reversely and
the knife returns to the
starting position

K11K11

1

L1

3

L2

5

L3

13

NO

+

A1

1

L1

3

K11

404018
2_5_1C

2 - 6

The Last Few Sheets Are Left Uncut

Are the cutting stick and the knife OK?

Cutting Stick

One side of a cutting

2

1

stick can provide two

8
7

■ If there is a groove on the cutting stick as shown in

the drawing above, the last few sheets are left uncut,

or the cutting edge is rough. Change the cutting stick

face or replace it. If the groove is shallow and the last

one sheet is left uncut, place few sheets under the

cutting stick. Prepare the sheets whose width is the

same as the cutting stick.

■ If the knife edge is worn, the dull knife causes the

louder cutting noise and the last few sheets are left

uncut. Replace the knife. Service technicians should

bring back the used knife.

3

working lines. One

4

cutting stick can provide
eight working lines on

65

the four sides

404018

Is the knife height OK?

Right-hand Screw
Lock Nut

Loosen

Lower

The adjustable range is ± 45 degrees. If

404018
2_6_1B

you turn the screw more, the screw may
be broken.

■ If the last few sheets left uncut just after replacing the

knife, the knife height is not correct. See page 9

and lower the knife.

Adjusting
Screw

Left-hand Screw

Lock Nut

Loosen

Is the knife tilted?

Locking Screw

Eccentric Pin

404018
2_6_1C

■ If the sheets are left uncut on either side, see page

9 and adjust knife angle.

The wear of the knife can not be seen by the eyes. The repeated
operation with the dull knife may result in machine malfunction.
The knife needs to be replaced earlier.

2

Troubleshooting

The Last Few Sheets Are Left Uncut

PC-P430

23

2 Troubleshooting

Cut Size Is Not Accurate

24

PC-P430

2 - 7

Does the backgauge plate stick out

Cut Size Is Not Accurate

?

3

Not rubbing
the grooves

5

Lever

6

4

No gap

7

2

3

1

404018
2_7_1A

■ The backgauge plate 3 is pressed against the frame 4

by the spring. If there is a gap between the backgauge

plate and the frame, the cut size differs from the length

indicated by the indicator. If there is a gap, check the

following:

Is the indicator mounted correctly?

Indicator

404018
2_7_1B

See page 33 for details.

■ Check that the indicator is mounted in the correct

position. If not, cut a sheet with the backgauge in that

position, and measure the length of the cut sheet.

Adjust the position of the indicator so that the indicator

indicates that length.

The three slide shafts 1 are locked on the backgauge plate.

The two bearings 2 are mounted correctly.

Nothing is between the backgauge plate 3 and the frame 4.

The bottom of the backgauge plate 3 does not rub the

grooves on the back table 5.

The two knurled knobs 6 are not loosened.

The spring 7 is mounted correctly.

There is a gap between the indicator and the scale.
Therefore, the value changes if looked at from different
angles. Look straight down the indicator to read the value
correctly.

2 - 8

Skew Cut

Is the backgauge plate is tilted?

If there is a gap, skew

Groove

Groove

Backgauge Plate

Groove

Groove

Frame

■ If the backgauge plate does not move smoothly,

it makes a gap as shown in the drawing above.

In this case, skew cut will occur. The backgauge

plate is always pressed against the frame by the

spring. (See the left column on the previous page.)

If the backgauge cannot be moved smoothly us-

ing the sheet pusher lever, check the following.

• The three slide shafts are locked on the backgauge plate.

(See the left column in the page 24.)

• The two bearings are mounted correctly.

• Nothing is between the backgauge plate and the frame.

• The bottom of the backgauge plate does not rub the grooves

on the back table.

cut occurs.

Sheet Pusher Lever

404018
2_8_1A

Is the backgauge plate is parallel to the knife?

Knife

Backgauge:
The backgauge is not parallel to the

knife.

404018
2_8_1B

■ The backgauge is moved by turning the right and left

feed screws. If the pulleys are not locked on the feed

screws rmly, the backgauge does not move parallel.

• If the backgauge is little skew, go to (1).

• If the backgauge is skew too much, go to (2).

(1) See page 33 and adjust the angle of the backgauge

using the allowance of the screw holes where the back­gauge and the feed blocks are mounted.

) See page 33 and adjust the timing pulleys on the feed

(

2

screws so that the backgauge moves parallel to the
knife.

2

Troubleshooting

Skew Cut

PC-P430

25

2 Troubleshooting

The Book Spine Is Crashed / The Book Is Contaminated

26

PC-P430

2 - 9

The Book Spine Is Crashed / The Book Is Contaminated

Is the book placed in the center?

Clamp

Table

The book spine is thicker than the
sheets because of the spine glue.

■ The book spine is thicker than the sheets because of

the spine glue. If the book is in the center, the clamp

crashes the spine when cutting the book.

The clamp has a cutout on the left end as shown in

the drawing above. If the book spine is placed under

the cutout, the book spine is not pressed. Instruct the

operator to place the book spine under the cutout

when cutting the book.

404018
2_9_1A

Does the grease come out?

404018
2_9_1B

Grease comes out here.

■ The grease is applied on the sliding face of the knife

holder and clamp. If the grease comes out to the point

indicated by the arrow, it contaminates the books.

■ Instruct the operator to wipe off the extra grease which

comes out using tissue paper. (Instruct also not put

hands and ngers under the knife.)

2 - 10

Vague Cut Line

Are paper chips stuck on the rear of the knife?

If this gap is blocked with
paper chips, the cut line is
blurry.

■ There is a slight gap between the knife and the clamp.

The light from the LEDs go through this gap and make

the cut line.

• If a part of the cut line is vague, remove the knife and check

that no paper chips are stuck on the rear of the knife.

404018
2_10_1A

Is the cut line broad?

QPW-960

Cut Line LED
Board 2

QPW-960

Cut Line LED
Board 1

Locking
Screws

Locking
Screws

■ The width of the cut line changes depending on the

position of the two QPW-960 cut line LED boards. Go

through the following steps to nd the position where

the cut line is the sharpest.

Remove the top cover. (See Step 2 in the page 35 for

1.

details.)

Loosen the locking screws, and adjust the position of the

2.

LED boards, for the sharp cut line.

404018
2_10_1B

2

Troubleshooting

Vague Cut Line

PC-P430

27

2 Troubleshooting

28

PC-P430

This page is intentionally left blank.

2

Troubleshooting

This page is intentionally left blank.

PC-P430

29

2 Troubleshooting

30

PC-P430

This page is intentionally left blank.

3 Descriptions of Mechanisms

3

Descriptions of Mechanisms

PC-P430

PC-P430

31

3 Descriptions of Mechanisms

Cutting and Clamp Section

32

PC-P430

3 - 1

3 - 1 - 1

DU Bushing
(Compressed into the drive cam)

Cutting and Clamp Section

Cutting and Clamp Mechanism

This oilless bearing
supports the drive
cam.

Crank

Cam Mechanism Front View

Adjusting Screw

CAUTION:
The adjustable range is

±45 degrees. If you turn
the screw more, the
screw may be broken.

6

5

Drive Cam

(Fig.6-37)

Ring

(Fig.6-7)

Drive Cam

4

Clamp

(Fig.6-1)

M01

Main Motor

(Fig.6-41)

Cutting

This spring
presses down the
clamp.

The clamp is
hooked on the
knife holder.

Stick

The edge of the clamp is always
below the edge of knife.

Knife Holder

The cut line is the light from this space.

3

2

404018
3_1_1A

1

Eccentric Pin

(Fig.6-16)

S03

Cam Switch A

Position of Cam and Switches

When the knife runs in normal
direction and it is at the upper
limit, the cam must not press
the actuators of S03 and S04.

S03

S04

Cam Switch B

Actuator

S04

Normal
Direction

Holding Plate
(Fig.6-19)

Keeper Screw (2 and 5)

• The four screws 1, 3, 4 and 6 that

are shown in the left above lock the
holding plate for the knife.

• Screws 2 and 5 prevent the knife

from dropping when the screws 1, 3,
4 and 6 are loosened by the vibra­tion of the machine. A special tool is
required to loosen screws 2 and 5.

Marker Hole

B

A

A

Part B is eccentric to part A. Insert the screw driver
to the straight slot and turn the pin to adjust the
knife angle.

3 - 2

Backgauge Section

3 - 2 - 1

Backgauge Drive Mechanism

Mounting Screw Mechanism

The backgauge should be parallel to the
knife. Make the parallel adjustment using
the allowance of the screw holes. If the
backgauge is skew too much, adjust the
backgauge using the timing pulley.

Backgauge

Backgauge Plate

Shims (Fig.3-22)

Adjust the height of the backgauge plate
using the shims so that the projections
on the backgauge plate do not rub the
grooves on the table.

Gear (Bevel Gear)

(Fig.3-11)

Indicator

Tension

Timing Pulley

13~14mm

0.51" through 0.55"

Feed Block

Backgauge Drive Section

3

Descriptions of Mechanisms

Backgauge Section

Guide Shaft

Feed Screw

404018
3_2_1A

PC-P430

33

3 Descriptions of Mechanisms

Safety Cover Section

34

PC-P430

3 - 3

3 - 3 - 1

Safety Cover Section

Safety Cover Mechanism

S10

Safety Cover Switch (Left)

Safety Cover

Safety Cover

Crank Plate

S07

Safety Cover Switch (Right

(Fig.2-11)

Detect Cam

Crank Plate

Link Plate

Bracket

Knife
Holder

)

Safety Cover

404018
3_3_1A

Bracket

Knife
Holder

S07
S10

COM

NC

■ When the safety cover is opened, the detect cam presses

the actuator of S07/S10 and break the circuit.

■ Position the detect cam so that the S07/S10 is activated

when you lift the safety cover by 5 to 8 mm (0.2 to 0.3").

Detect Cam

Not Projecting

Link Plate

■ When the safety cover is closed, the tip of the link plate is not

projecting from the bracket, so the knife holder is able to move.

Not Projecting

■ When the safety cover is open, the tip of the link plate is

projecting from the bracket. Because the knife holder is hit
by the link plate, the knife holder is not able to move. This
prevents the knife from lowering when the safety cover is
open even if the Safety Cover switch is broken.

3 - 4

Removing the Back Table

3 - 4 - 1

Procedure to Remove the Back Table

■ This section describes the procedure to remove the

back table.

1 Remove the knife.

2 Remove the top cover.

. Loosen the screw on the door and open the door.

1

. Remove the two screws on the rear of the top cover, and

2

remove the top cover in the upper direction.

(Fig.1)

3 Remove the rear cover, the rear right cover

and the rear left cover.

• Insert the Allen wrench into the holes in the rear right

and left covers and loosen the locking screws. The rear
right and left covers can be pulled out outward. (You do
not need to remove the screws.)

4 Remove the backgauge.

• Shims to adjust the height may be under the bracket.

(Be careful not to lose the shims.)

5 Remove the back table.

(Fig.2)

(Fig.3)

(Fig.4)

6 Lower the knife holder to the lower limit.

• Go through step 2 to 4 in page 9.

• Lower the knife holder to the lower limit so that the

clamp can be removed easily afterward.

• Turn off the power, and disconnect the power cable.

Fig.1 Removing the top cover

Rear Left Cover

Top Cover

Rear Cover

2

The shims may be

2

under the bracket.
Be careful not to lose
them.

1

Loosen this
screw and open
the door.

404018

3_4_1A

404018

3_4_1C

Fig.3 Removing the backgauge

Back Table

Insert the 3 mm
Allen wrench into
this hole

3

Fig.2 Removing rear, rear right and rear left covers

Descriptions of Mechanisms

Rear Right Cover

404018

3_4_1B

Removing the Back Table

Fig.4 Removing the back table

404018

3_4_1D

PC-P430

35

3 Descriptions of Mechanisms

Removing the Front Table

36

PC-P430

3 - 5

3 - 5 - 1

Removing the Front Table

Procedure to Remove the Front Table

■ Go through the following steps after removing the

back table.

1 Remove the right cover.

. Remove the right cover on the front table. (You do not

1

need to remove the left cover.)

Remove only the two screws shown in the drawing

of g.1. If you remove the other screws, the micro

switch on the rear will drop.

. Remove the locking screw.

2

The collar is behind the locking screw. Be careful not

to drop the collar.

2 Remove the lower cover.

• Remove the upper four screws and the lower two

screws, and pull out the lower cover in a horizontal
direction.

(Fig.1)

(Fig.2)

3 Remove the cutting stick removing lever.

(Fig.3)

• Remove the snap ring, and pull out the cutting stick

removing lever unit.

1

Screw

Locking Screw

Right Cover

2

1

Screw

1

Fig.1 Removing the right cover on the front table

Lower Cover

404018

3_5_1A

Snap Ring

404018

Cutting Stick
Removing Lever

3_5_1C

Fig.3 Removing the cutting stick removing lever

S00

Key Switch

White Case

Claw

4 Remove the counter.

• Remove the counter so that you can remove the body of

the Key switch in step

. Push the claws on the white case outward and push out

1

the counter from the inside of the machine.

. Remove the wirings for the counter. (See page 71 for

2

details.)

(Fig.4)

6

on the next page.

Fig.2 Removing the lower cover

404018

3_5_1B

Claw

White Case

A10

Counter

Fig.4 Rmoving the counter

Counter

404018

3_5_1D

(Continued)

5 Disconnect the connectors of S07/S10

Safety Cover switches.

6 Remove the body of the Key switch.

. Press the white part on the body and pull out the body.

1

. Put the removed body under the front table through the

2

square window below the Key switch.

(Fig.5)

(Fig.6)

7 Disconnect the connectors of S05/S06

Right and Left Cutting buttons.

8 Remove the whole front table.

• There are eight mounting screws.

(Fig.7)

(Fig.8)

Safety Cover
Switch (Left)

S10

COM

NC

BLU

BLU

(

*

)

Fig.5 Disconnecting the connectors of safety cover switches

Safety Cover
Switch (Right)

S07

COM

NC

BLU

BLU

(

*

)

404018

3_5_1E

Disconnect the connec­tors for these cutting
buttons.

Fig.7 Disconnecting the connectors of the Cutting buttons

S05

Left Cutting
Button

S00

Key Switch

S06

Right Cutting
Button

Front Table Unit

404018

3_5_1G

3

Fig.6 Removing the body of the Key switch

Descriptions of Mechanisms

Remove the Key
switch body and
pass the body
through the square
window.

404018

3_5_1F

Removing the Front Table

Fig.8 Removing the front table

404018

3_5_1H

PC-P430

37

3 Descriptions of Mechanisms

Removing the Clamp

38

PC-P430

3 - 6

3 - 6 - 1

■ Go through the following steps after removing the

front table.

Removing the Clamp

Procedure to Remove the Clamp

1 Disconnect the cable and the connector.

(Fig.1)

Remove the spring holder.

2

• As the knife is already lowered to the lower limit, you

can remove the spring holder easily.

There are six mounting screws. The two screws on

the front is shorter than the other four screws. When
you mount the holder spring afterward, pay atten­tion to the length of the screws and use the screws
correctly.

3 Remove the clamp.

• Grease is applied on the guide sections on the both

ends of the clamp.

• Before you mount the clamp again, clean the guide sec-

tions and apply new grease.

(Fig.3)

(Fig.2)

Cable for the Cut Line
LEDs

Connector for LED
Board

404018

3_6_1B

Fig.1 Disconnect the cable for the cut line LEDs

These two screws are shorter than
the other four screws.

Clamp

Clamp Slide Mechanism

Fig.3 Removing the clamp

404018

3_6_1D

Spring Holder

Fig.2 Removing the spring holder

404018

3_6_1C

3 - 7

Removing the Knife Holder

3 - 7 - 1

Procedure to Remove the Knife Holder

■ Go through the following steps after removing the

clamp.

1 Remove the right and left brackets.

2 Remove the knife holder unit.

• Remove the locking screw on the crank shaft, and

remove the knife holder and the crank unit together.

There are rings behind the knife holder. (See Fig.4

for details.) Be careful not to drop the rings.

3 Remove the crank.

• The knife pin is just inserted from the front. You can

push it out from the rear. (Pay attention to the mounting

direction. The knife pin has a ange on the front side.)

4 Pull out the pins.

• The left pin has the hole for the set screw (sharp point.)

When you mount the left pin again, insert the tip of the
set screw into this hole and lock the pin.

• The right pin is a eccentric pin.

(Fig.3)

(Fig.4)

(Fig.1)

(Fig.2)

Left Bracket

Right Bracket

404018
3_7_1A

Fig.1 Removing the right and the left brackets

Knife pin

This pin is just insert­ed. Pay attention to the
mounting direction.

Fig.3 Removing the crank

Sharp Point SS6-10

Pin

Crank

Ring

404018
3_7_1C

3

Locking
Screw

404018
3_7_1B

Fig.2 Removing the knife holder

Descriptions of Mechanisms

Crank Shaft

Knife Holder Unit

Removing the Knife Holder

Eccentric Pin

Marker Hole

Slot for the
Screwdriver

The head of this pin should not proj­ect from the knife holder.

Fig.4 Removing the pins

Flat Point SS6-10

Ring

404018
3_7_1D

PC-P430

39

3 Descriptions of Mechanisms

Removing the Cam

40

PC-P430

3 - 8

3 - 8 - 1

Removing the Cam

Procedure to Remove the Cam

■ Go through the following steps after removing the

knife holder.

1 Remove the front plate.

There are four collars behind the front plate. Be care-

ful not to lose them.

(Fig.1)

2 Remove the brackets for the cam switches

A and B.

3 Remove the rear plate.

• Remove the screws for the side frame. Open the side

frame slightly and remove the rear plate.

4 Remove the cam.

• Loosen the two set screws (SS5-20) using a 2.5 mm

Allen wrench.

• When you cannot pull out the cam, use a tool to pull out

a pulley.

How to mount the front plate

. Mount the collars on the lower two screws, and turn each

1

screw until the rst thread groove goes into the rear plate.

. Insert the upper two screws, and mount the collars.

2

(Fig.2)

(Fig.2)

(Fig.3)

(Fig.4)

Four
Collars

Front Plate

Four Flat Head
screws

Fig.1 Removing the front plate

Side Frame

Bracket for Cam Switch A

S03

Cam
Switch A

Rear plate

S04

Cam
Switch B

Bracket for Cam Switch B

404018
3_8_1A

404018
3_8_1B

Allen Wrench

Cam

SS5-20

Mounting

2

2

1

1

SS5-20

Fig.3 Removing the cam

Front Plate

2

1

Collar

404018
3_8_1C

Turn the screw so

that only the rst

thread groove is
in the rear plate.

404013
3_8_1D

Fig.2 Removing the cam switches

Fig.4 How to mount the front plate

3 - 9

Removing the Backgauge Drive Section

3 - 9 - 1

Procedure to Remove the Backgauge Drive Section

■ Go through the following steps after removing the cam

described in the page 40.

1 Remove the belt cover.

2 Remove the bevel gear unit.

• There are only two mounting screws.

3 Remove the timing pulley.

. Lower the tension pulley.

1

. Remove the timing belt.

2

. Remove the timing pulley.

3

(Fig.1)

(Fig.2)

(Fig.3)

4 Remove the feed screw and the guide shaft.

(Fig.4)

• You need to remove the side frame before replacing

the motor. You need to broaden out the front of the side
frame when you remove the side frame. Remove the
feed screw and the guide shaft so that you can broaden
the side frame afterward.

. Remove the snap ring (STW-12) on the guide shaft. The

1

snap ring is inside the side frame.

. Pull out the guide shaft to the rear.

2

. Remove the bevel gear and the ring on the rear of the

3

machine.

. Pull out the feed screw to the rear.

4

Belt Cover

Fig.1 Removing the belt cover

Bevel Gear

Bevel Gear Unit

404018
3_9_1A

Tension Pulley

1

Timing Pulley

3

Fig.3 Removing the timing pulley

Snap Ring

1

STW-12

2

2

Feed Screw

4

Guide
Shaft

Ring

2

404018
3_9_1C

3

Fig.2 Removing the bevel gear unit

Descriptions of Mechanisms

404018
3_9_1B

Bevel Gear

3

Fig.4 Removing the feed screw and the guide shaft

Removing the Backgauge Drive Section

404018
3_9_1D

PC-P430

41

3 Descriptions of Mechanisms

Removing the Motor

42

PC-P430

3 - 10

3 - 10 - 1

Removing the Motor

Procedure to Remove the Motor

■ Go through the following steps after removing the

backgauge.

1 Remove the connector cover and the

chassis cover.

2 Disconnect the connectors.

. Disconnect the connector for Z00 noise lter.

1

. Disconnect the connector for the Q00 circuit breaker.

2

. Disconnect the ground terminal.

3

• When you connect these parts again, connect the parts

correctly,

3 Remove the side frame.

• Broaden out the front of the frame, and then remove the

frame by pushing it to the rear.

4 Remove the M01 main motor.

. Disconnect the connector for the motor.

1

. Remove the key on the main shaft.

2

. Remove the locking screws on the motor, and pull out the

3

motor to the rear.

• Motor spacer is also removed.

(Fig.1)

(Fig.2)

(Fig.3)

(Fig.4)

Connector Cover Screw

Chassis Cover

Screw

Fig.1 Removing the connector cover

Z00

Noise Filter

Q00

Circuit
Breaker

Ground Terminal

404018
3_10_1A

Broaden out.

Fig.3 Removing the side frame

Side Frame

Motor Spacer

Broaden out

404018
3_10_1C

Fig.2 Disconnecting the connectors

404018
3_10_1B

M01

Main Motor

Fig.4 Removing the M01 Main Motor

404018
3_10_1D

3 - 11

Replacing the Knife

3 - 11 - 1

If there are following problems, replace the knife.

■ The last few sheets are left uncut even though the cut-

ting stick has been replaced.

■ The cutting noise becomes loud.

■ Cutting line of sheets are as shown below.

■ The total cutting count reaches 2,000 cycles.

The count of 2,000 is just a guide to replace the knife.

Service life of the knife changes depending on width,

height and quality of the sheets. Replace the knife at

1,000 through 2,000 cycles.

Removing the knife

1 Turn off the Key switch.

Procedure to Replace the Knife

14044
20701A1

See the user's manual for the Relation between the

Cutting Height and the Service Life of the Knife.

(Fig.2)

WARNING

CAUTION

• Turn off the Key switch before replacing

the knife.

• The knife is very sharp. Be careful when

you handling.

• Be careful not to drop the knife off the

sheath.

If you run the machine with a dull knife, that
causes machine malfunction. Replace the
knife early.

Fig.1 Warnings and Caution

Knife Holder

Allen Wrench

Do not loosen these screws.

Fig.3 Unlocking the knife

14044
20701B1

3

(Fig.3)

Descriptions of Mechanisms

2 Unlock the knife.

• Use the supplied Allen wrench and loosen the four

screws on the knife holder counterclockwise by a half
turn.

Do not remove the screws. The knife drops
when the screws are removed completely.

WARNING

The knife is designed so that it will not drop
when the screws are just loosened.

Insert completely the head of Allen wrench into the

screw head when you loosen the screw. Angle the
Allen wrench slightly to insert completely. (Fig. 4)

Key Switch

Fig.2 Turning off the Key switch

Replacing the Knife

104062
20601A1

Angle slightly and insert.

Fig.4 Inserting the Allen wrench

14044
20701C1

PC-P430

43

3 Descriptions of Mechanisms

(Continued)

3 Loosen the locking knob and open the door

for replacing the knife.

4 Pull out the knife using the knife

replacement tool.

• Catch the pin of the knife by the knife replacement

tool and pull the knife out of the machine by about 30
through 35 mm / 1.19” through 1.37”.

(Fig.5)

(Fig.6)

Replacing the Knife

44

PC-P430

30 through 35 mm

1.19” through 1.37”

5 Insert the edge of the knife into the sheath.

(Fig.7)

6 Push the knife into the sheath completely.

(Fig.8)

• Push the knife into the sheath until the pin is inserted

into the hole in the stopper completely.

Keep the sheath level or keep its edge with
the stopper lower until the pin is inserted into

CAUTION

the hole of stopper.

Locking Knob

14044
20701D1

Fig.5 Opening the door

Knife Replacement Tool

14044
20701E1

Fig.7 Inserting the edge of knife

Stopper

Pin

Hole

Sheath

Insert the pin
into the hole
and lock it.

14044
20701F1

14044
20701G1

Fig.6 Pulling out the knife

Fig.8 Pushing the knife into the sheath

(Continued)

7 Tie the sheath and the knife.

• The tie is attached to the back of the sheath.

. Align the holes in the knife and in the sheath and insert the

1

tie.

. Twist the tie by two or three turns so that it will not be

2

loosened.

Ask the local dealer to dispose of the old knife.

(Fig.9)

Installing the new knife

Tie

8 Prepare a new knife.

• Remove the tie.

(Fig.10)

9 Push out the knife from the sheath by about

100 mm / 3.94".

The knife is very sharp. Be careful when you

WARNING

handling.

(Fig.11)

10 Fit the knife edge with the cutout of the inlet.

(Fig.12)

14044

14044
20701H1

20702B1

Fig.11 Pushing out the knifeFig.9 Tying the sheath and the knife

Cutout

Tie

Inlet

14044
20702A1

Guide

14044
20702C1

Fig.10 New knife Fig.12 Fitting the knife with the cutout

3

Descriptions of Mechanisms

Replacing the Knife

PC-P430

45

3 Descriptions of Mechanisms

(Continued)

Replacing the Knife

46

PC-P430

11 Push in the knife.

(Fig.13)

• Push the pin by the edge of knife replacement tool. Fit

the pin against the knife holder.

Make sure that the pin ts rmly against the knife

holder.

•

12 Close the door.

(Fig.14)

• Tighten the locking knob completely.

13 Lock the knife.

(Fig.15)

• Tighten the four screws on the knife holder clockwise

using the Allen wrench.

• Insert the Allen wrench into the head of screw com-

pletely.

Be sure to tighten the screws completely.
Otherwise, the machine may malfunction or

WARNING

cause injury.

• Store the Allen wrench into the hole as shown below.

Allen Wrench

Fit

Knife Holder

Pin

Pin

Fig.13 Pushing in the knife

Locking Knob

14044
20702D1

Fig.15 Locking the knife

14044
20702F1

14044
20702G1

14 Press the Reset button to reset the counter

to zero.

(Fig.16)

Fig.14 Closing the door

14044
20702E1

Reset Button

Fig.16 Resetting the counter

14044
20701I1

3

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Descriptions of Mechanisms

PC-P430

47

3 Descriptions of Mechanisms

48

PC-P430

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3

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Descriptions of Mechanisms

PC-P430

49

3 Descriptions of Mechanisms

50

PC-P430

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4 Electrical Parts Location

4

Electrical Parts Location

PC-P430

PC-P430

51

4 Electrical Parts Location

PC-P430 Electrical Parts List

52

PC-P430

4 - 1

4 - 1 - 1

M : Motor

ID No. Name Location Circuit Mechanism

M01

PC-P430 Electrical Parts List

PC-P430 Electrical Parts List

Main Motor (3-phase 90W) p.54 p.70 p.32

Reference

S: Switch Reference

ID No. Name Location Board Circuit

Key Switch

S00

Cam Switch A

S03

Cam Switch B

S04

Left Cutting Button

S05

Right Cutting Button

S06

Safety Cover Switch (Right)

S07

Door Switch

S08

Safety Cover Switch (Left)

S10

p.54

- p.70

QPW-968 p.71

Other Electrical Parts Reference

ID No. Name Location Board Circuit

Counter

A10

Brake Pack -

A20

Capacitor 1 (25μF) -

C01

Capacitor 2 (25μF) -

C02

Capacitor -

C03

Switching Power Supply -

G00

Interlock Relay 1

K01

Interlock Relay 2

K02

Contactor for Normal Rotation

K10

Contactor for Reverse Rotation

K11

Circuit Breaker -

Q00

Terminal Board -

X00

Noise Filter -

Z00

p.55

- p.71

QPW-968

p.70

p.70, p.71

p.70

4

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Electrical Parts Location

PC-P430

53

4 Electrical Parts Location

Motor and Switch Locations and Names

54

PC-P430

4 - 2

4 - 2 - 1

Motor and Switch Locations and Names

Motor and Switch Locations and Names

Knife

M01

S04

S03

Front Table MechanismKnife Mechanism

S10

Door for Replacing the Knife

S08

S07

S00

A10

S06

404018
4_2_1A

S05

Box ID No. Name Parts Book

1

2

1

2

Main Motor Fig.6_41 3-phase 90W -

M01

Key Switch Fig.1_9 - -

S00

Cam Switch A Fig.6_29

S03

Cam Switch B Fig.6_29 CON2/L3

S04

Left Cutting Button Fig.2_20 CON2/L1

S05

Right Cutting Button Fig.2_20 CON2/L1

S06

Safety Cover Switch (Right) Fig.2_11 CON3

S07

Door Switch Fig.1_7 CON3

S08

Safety Cover Switch (Left) Fig.2_11 CON3

S10

Type/Board

QPW-968

CON/LED Circuit

p.70

CON2/L2

p.71

4 - 3

Other Electrical Parts Locations and Names

4 - 3 - 1

G00

A10

404018
4_3_1A

Other Electrical Parts Locations and Names

K01

K02

K10

K11

A20

C02

C01

X00

Ground Terminal

Q00

Z00

C03

ID No. Name Parts Book

A10

A20

C01

C02

C03

G00

K01

K02

K10

K11

Q00

X00

Z00

Counter

Brake Pack

Capacitor 1 (25μF) (100V)

Capacitor 1 (25μF) (115V)

Capacitor 1 (25μF) (230V)

Capacitor 2 (25μF) (100V)

Capacitor 2 (25μF) (115V)

Capacitor 2 (25μF) (230V)

Capacitor

Switching Power Supply

Interlock Relay 1

Interlock Relay 2

Contactor for Normal Rotation

Contactor for Reverse Rotation

Circuit Breaker (100/115V)

Circuit Breaker (230V)

Terminal Board

Noise Filter

Type/Board

Fig.1_12 - - p.71

Fig.8_4 - -

- -

Fig.8_15

Fig.8_16

Fig.8_2 - -

Fig.8_7 - -

Fig.8_5

Fig.8_5 CON3/L7,8

Fig.8_3 CON2/L5

Fig.8_3 CON2/L4

Fig.8_11

Fig.8_1 - -

Fig.8_10 - -

- -

- -

- -

- -

- -

QPW-968

- -

- -

CON/LED Circuit

p.70

CON3/L6,9

p.70,

p.71

p.70

4

Electrical Parts Location

Other Electrical Parts Locations and Names

PC-P430

55

4 Electrical Parts Location

56

PC-P430

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4

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Electrical Parts Location

PC-P430

57

4 Electrical Parts Location

58

PC-P430

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5 Circuit Boards

5

Circuit Boards

PC-P430

PC-P430

59

5 Circuit Boards

Board Locations and Names

60

PC-P430

5 - 1

5 - 1 - 1

Board Part No. Name Application LED and DSW

QPW-959 P114711
QPW-960 P114811
QPW-968 P115811
QPW-969 P115911

Board Locations and Names

Board List

Cut Line LED Current Control Board Board to control the current for the QPW-960 cut line LED board 1 and 2

Cut Line LED Board 1, 2 Their LEDs indicate the cut line.

Control Board Board to control the whole machine

LED Board Board to indicate the state of machine by the LEDs

QPW-960

QPW-969

p.63
p.63
p.61
p.64

QPW-959

QPW-968

5 - 2

NORMAL

ADJ

QPW-968 (P115811) Control Board

5 - 2 - 1

QPW-968

QPW-968 Board Diagram

CON 4

P No.

14: 1

CON 3

QPW-968 (P115811) Control Board

FIDU1

12: 1

CON 6

1: 6

BZ

SW1

24V

5V

L1

L2

FL 1

L3L4L5

1: 6

CON 1

1: 12

CON 2

SW1 :

Toggle Switch

ADJ

NORMAL

5

ADJ: For adjusting the lower limit

The knife stops temporarily at the

lower limit while the cutting buttons are
being pressed.

NORMAL: Normal Operation

Circuit Boards

L9

L7

L8

L6

Bar Code

QPW-968 (P115811) Control Board

RY3

RY2

FIDU2

RY1

CON 5

1 2

404018
5_2_1A

PC-P430

61

5 Circuit Boards

NORMAL

ADJ

QPW-968 (P115811) Control Board

62

PC-P430

5 - 2 - 2

CON 4

P No.

14: 1

CON 3

QPW-968 LED Location

QPW-968 (P115811) Control Board

FIDU1

12: 1

CON 6

1: 6

BZ

SW1

C

L9

L6

L8

Bar Code

L7

RY3

24V

5V

A

L1

L2

RY2

FL 1

B

L3L4L5

FIDU2

RY1

CON 5

1 2

1: 6

1: 12

404018
5_2_2A

CON 1

CON 2

Box LED No. ID No. Lighting Condition

A

B

C

5V - When 5 V is generated on the board

24V - When 24 VDC is supplied to the board

L1 S05,S06 Left Cutting Button and Right Cutting Button are pressed within 0.5 seconds.

L2 S03

L3 S04

L4 K 11

L5 K10

L6 K01 When the interlock relay 1 works (When the cover is closed)

L7 K02 When the interlock relay 2 works (When the cover is closed)

L8 K02

L9 K01

When the knife has passed the upper limit and until it reaches the lower limit.
(While the Cam Switch A is pressed.)
(This LED goes off when the knife is at upper limit)

When the knife is at just before the lower limit and until it reaches the upper

limit. (While the Cam Switch B is pressed.)
(This LED goes off when the knife is at upper limit)

When Contactor for Reverse Rotation works (Monitor of normal open auxil­iary contact)

When Contactor for Normal Rotation works (Monitor of normal open auxiliary
contact)

When the interlock relay 2 does not work. (When the cover is opened)
(Monitor of normal close auxiliary contact)

When the interlock relay 1 does not work.(When the cover is opened)
(Monitor of normal close auxiliary contact)

5 - 3

QPW-959 (P114711) Cut Line LED Current Control Board

5 - 3 - 1

QPW-959

QPW-959 Board Diagram

QPW-960

Cut Line LED Board 2

QPW-960

Cut Line LED Board 1

QPW-960

(P114811)

Cut Line LED Board 1

FIDU1

4: 1

CON 1

FIDU2

QPW-959 (P114711)

QPW-959 (P114711)

LED Current Control Board

LED Current Control Board

FIDU1

4 3 2 1

1

2

3

CON 1

DC24V_IN

1: 12

CON 4

QPW-968

(P115811)

Control Board

5

QPW-960

Cut Line LED Board 2

Circuit Boards

(P114811)

FIDU1

4: 1

CON 1

FIDU2

1

2

3

CON 2

FIDU2

DC24V_OUT

2 1

404018
5_3_1A

QPW-959 (P114711) Cut Line LED Current Control Board

PC-P430

63

5 Circuit Boards

QPW-969 (P115911) LED Board

64

PC-P430

5 - 4

5 - 4 - 1

QPW-969 (P115911) LED Board

QPW-969 Board Diagram

QPW-969

QPW-969 (P115911)

QPW-969 (P115911)

Panel LED Board

Panel LED Board

Monitor

L1

L2

FIDU1

CON 1

LED No. ID No. Lighting Condition

1 32 4 65

L1 - When the machine is ready to run

L2 - While the machine is running

L3 -

When there is a problem inside the machine.
This LED ashes when the safety cover or the door is open.

404018
5_4_1B

L3

FIDU2

404018
5_4_1A

5 - 11

ROM Version History

5 - 11 - 1

Main

Control

Board

QPW-968

ROM Version

Serial

Number

Related Bulletin (Date of issue)

Upgrade Contents

5

Circuit Boards

QPW-969 (P115911) LED Board

PC-P430

65

5 Circuit Boards

66

PC-P430

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5

Circuit Boards

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PC-P430

67

5 Circuit Boards

68

PC-P430

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6 Electrical Circuits

6

Electrical Circuits

PC-P430

PC-P430

69

6 Electrical Circuits

SD Circuit

70

PC-P430

6 - 1

6 - 1 - 1

For 100V
For 115V

For 100V

Supplied Parts
Ground Wire

Transformer

SD Circuit

SD1 AC Power Circuit

Noise Filter
(Inlet)

Z00

For 100V

Ground Terminal

S00

Key Switch

Brake Pack

A20

X00

Bottom

Top

XS00

Contactor for
Normal Rotation

K10

Circuit Breaker

Q00

2A(100/115V)
1A(230V)

Switching Power Supply

Interlock Relay 1

K01 K02

X00

Bottom

G00

Interlock Relay 2

Top

For 100V
For 115V

Main Motor

M01

SD1-00

X00

Bottom

X00

Bottom

Top

Top

C03

Capacitor

Contactor for
Reverse Rotation

K11

C02

Capacitor 2

(25μF)

X00

Bottom

Top

C01

Capacitor 1

(25μF)

X00

Bottom

Top

Connected with
a cable clamp

Main Motor

M01

504013
6_1_1A

6 - 1 - 2

Reverse Rotation

Safety Cover Switch (Right)

Safety Cover Switch (Left)

SD2 Input and Output System Circuit

Cam Switch A

Cam Switch B

K10

Contactor for

Normal Rotation

K11

Contactor for

Left Cutting Button

Right Cutting Button

Door Switch

S03

S04

S05

S06

S07

S08

S10

Cam Switch A

Cam Switch B

Contactor for Reverse Rotation Auxiliary Contact

Contactor for Normal Rotation Auxiliary Contact

Left Cutting Button

Right Cutting Button

24V for Cut Line LED Current Control Board

Door Switch

Interlock Relay 1

Safety Cover Switch (Left)

Interlock Relay 2

Interlock Relay 1 Auxiliary Contact

Interlock Relay 2 Auxiliary Contact

Contactor for Reverse Rotation

Contactor for

Normal Rotation

Counter

Signal

Switching Power Supply

G00

QPW-969

A02

(P115911)

LED Board

A10

Counter

QPW-960

(P114811)

Cut Line LED Board 1

A04

Interlock Relay 1

Interlock Relay 2

K01

K02

SD2-01

Attached with Surge Protector

Attached with Surge Protector

6

Electrical Circuits

QPW-968

Control Board

SD Circuit

A01

(P115811)

A03

QPW-959

(P114711)

Cut Line LED Current
Control Board

A05

QPW-960

(P114811)

Cut Line LED Board 2

504013
6_1_2A

PC-P430

71

6 Electrical Circuits

72

PC-P430

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6

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Electrical Circuits

PC-P430

73

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