Standard Horizon PF-P320 User manual

SERVICE MANUAL
Standard Horizon PF-P320 Paper Folder
Read this manual, and thoroughly
familiarize yourself with its contents
before operating or servicing this
equipment.
PF-P320/SM

IUS503001-01030812/PFP320/01E/DV
FOREWORD
Paper Folder
Model PF-P320
Do not perform any maintenance until you read and
understand the instructions in this manual.
If you have questions regarding maintenance or this publication,
please contact our service division.
This manual is designed to help you to keep the machine in a good operating
condition. Read, study and keep this manual in a safe and convenient place.
The machine design and specifications are subject to
change without notice.

II
Safety Instruction
1. Read and understand all safety instructions with a signal WARNING,
and CAUTION. If safety instructions are ignored, personal injury will
result.
2. HORIZON INTERNATIONAL INC. cannot anticipate every possible situa-
tion that might involve a potential hazard. The instruction in this manual are
therefore not all inclusive.
3. Be sure to unplug the power cord when replacing the parts or repairing the
machine.
4. Take care with the rotating parts when the machine is operated with the covers
being opened.
5. Use the original HORIZON spare parts when replacing the parts.

III
Use the following tools for maintenance and repair.
1. Screw Driver No. 2
2. Screw Driver 6 to 7 mm
3. Allen Wrenches 1.5, 2, 2.5, 3, 4, 5, and 6 mm
4. Open-ended Wrench 5.5 x 7 mm 8 x 10 13 x 17
5. Box Wrench 5.5 mm
6. Snap-ring Expander
1. The following signs in this manual
represent wire color.
Sign Color
C Brown
RRed
O Orange
Y Yellow
G Green
B Blue
V Violet
H Gray
W White
D Black
S Transparent
LY Light Yellow
LG Light Green
LB Light Blue
P Pink
2. The following abbreviations in this manual
represent electronic and electrical parts.
Abbreviation Meaning
CL Clutch
BK Brake
SW Switch
mSW Microswitch
M Motor
LED Light Emitted Diode
VR Potentiometer
RY Relay
II Signs and Abbreviations in This Manual
I Necessary Tool for Maintenance and Repair

IV
Contents
FOREWORD .......................................................................................................................... I
Safety Instruction ................................................................................................................... II
I Necessary Tool for Maintenance and Repair ...................................................................... III
II Signs and Abbreviations in This Manual .......................................................................... III
1. Specifications and Functions .......................................................................................... 1
2. Operation Overview ........................................................................................................ 2
3. Sheet Flow ........................................................................................................................ 4
4. How to Remove Covers ................................................................................................... 5
5. Troubleshooting ............................................................................................................... 6
5. Troubleshooting (Electronic Control) ........................................................................... 13
6. Message List ..................................................................................................................... 16
7. Sensor and Electronic Parts Descriptions ..................................................................... 17
8. LED Descriptions and DIP SW Set Up ......................................................................... 18
9. Drive Section Line Diagram ........................................................................................... 19
10. Control Section Signal Line Diagram ......................................................................... 20
11. Buckle Section Line Diagram ....................................................................................... 21

(1)
1. Specifications and Functions
Model PF-P320
Standard Sheet Size A5 (manual setting), A4, A3, B4, B5 (5.5" x 8.5", 8.5" x 11",
8.5" x 14", 10" x 14", 9" x 11", 11" x 17")
Sheet Size Maximum : 311 x 432 mm (12.2" x 17")
Minimum : 65 x 90 mm (2.6" x 3.6") (90 mm is available single
fold only)
Sheet Weight 50 to 105 gsm
Folding Speed 200 sheets / min. (A4, single fold)
Folding speed slows 60% down with slow folding mode.
Maximum Pile Height 30 mm (1.2")
Power 100 V 50/60 Hz (150 W)
115 V 60 Hz ( 80 W)
230 V 50 Hz (90 W)
Machine Dimension Tray Open : 956 x 493 x 582 mm (37.7" x 19.4" x 23")
Tray Close : 677 x 493 x 582 mm (26.7" x 19.4" x 23")
Machine Weight 36 kg (79.4 lb)
(Power Consumption)
B. Functions
Counter 4 digits total counter / Preset counter
Display Monitor Indicates counter and troubles
Sensor Sheet jam, buckle open/close, no sheet and set lever
Fold Length Indication Display monitor indicates digital number by 1/5 mm.
LED shows the position of eject roller.
(Eject roller is positioned by hand.)
Memory of Irregular Folding 2 memories
Stopper Position Can be positioned with keyboard.
Maintenance Without any tool for replacing fold roller, pad, feed roller, sheet jam
A. Specifications

(2)
2. Operation Overview
1. Turn on power switch.
1st and 2nd stoppers move to home position
automatically. Then stoppers moves accord-
ing to fold pattern and sheet size memorized
at previous operation. When feed tray lever
rises at that time, motor, fold roller and
delivery belts will rotate. When feed tray
lever lowers, motor does not rotate.
2. Push feed tray lever down.
Motor will stop about 0.5 minute later.
3. Pile sheets into feed tray and select fold
pattern with folding pattern select button.
Stoppers move to set position according to
fold pattern. Deflector is activated only
when single fold pattern is selected.
4. Push feed tray lever up.
Motor will rotate.
5. Press test feed button.
- Clutch will be activated and feed roller
will make 1 turn and a sheet is fed.
- If sheet is not piled on feed tray, motor
will stop.
6. Press start/stop button.
- Clutch will be activated and a sheet will be
fed continuously or sheets will be fed con-
tinuously with some intervals (only accor-
dion fold and short fold).
7. Sheet feeding stops.
- Clutch will be off and only feed roller
stops when start/stop button is pressed.
- Clutch will be off and feed roller stops and
motor stops when feed tray lever is lowered.
- Feed roller stops when counter reaches
input number in the case of preset counter is
used.
- Feed roller stops when sheets run out on
feed tray.
Display Indication
" Please wait"
"Set Delivery Roller"
"0 / 0"
"Set Delivery Roller"
"0 / 0"
"0 / 0"
"0 / 0"
"1 / 0"
"Empty Tray"
"1 / 0"
Count Up
"50 / 0"
"0 / 50 Preset Stop"

(3)
2. Operation Overview
8. Mode select button in memory mode has
four modes ;
- 1st stopper input mode
- 2nd stopper input mode
- Memory 1 memory mode
- Memory 2 memory mode
- Stopper can be moved to set position with
number entry keys in stopper input modes.
For example, when required measurement is
132.5 mm, input 1325 with number entry
keys.
- Input mode will be switched automatically
from 1st stopper input mode to 2nd stopper
input mode. (Modes will not be switched in
the case of single mode.)
Display will be switched to counter mode
after required measurement of 2nd stopper is
input.
- When only 2nd stopper input is required,
press mode select button twice, and 2nd
stopper input mode will appear.
9. Memory mode
- If mode select button is pressed three
times, mode will be switched to memory 1
mode. If mode select button is pressed four
times, mode will be switched to memory 2
mode.
- If memory bouton is pressed with memory
mode, stopper position will be displayed and
input and monitor will be switched to
counter mode automatically.
- Press mode select button once to read
memory 1 ; press button twice to read
memory 2.
"XXX.X Set Stopper 1"
"XXX.X Set Stopper 2"
"Memory 1 Press MEMORY"
"Memory 2 Press MEMORY"
"XXX.X Set Stopper No.1"
"132.5 Set Stopper No.1"
"Stopper Set OK"
"XXX.X Set Stopper No.2"
"0 / 0"
"Memory 1 Press MEMORY"
"0 / 0"
"Memory 1 Please wait."
"XXX.X XXX.X Memory 1"
"Memory 2 Please wait."
"XXX.X XXX.X Memory 2"

(4)
2nd Buckle
Stopper
Deflector
Delivery Belt
Fold Roller
1st Buckle
3rd Drive Roller
2nd Drive Roller
1st Drive Roller
Feed Roller
Deflector
Deflector
3. Sheet Flow
1. Feed roller feeds sheet to 1st drive roller.
2. Sheet is nipped between 1st drive roller and
fold roller and then transported to 1st
buckle.
3. When sheet reaches to stopper in 1st buckle,
sheet is buckled and the buckled part of
sheet is nipped between 2nd drive roller and
fold roller.
4-1. In the case of single fold, deflector moves
up and sheet is delivered to delivery belt.
4-2. In the case of the other folding patterns,
deflector moves down and sheet folded
between 2nd drive roller and fold roller is
transported to 2nd buckle.
5. When sheet reaches to stopper in 2nd
buckle, sheet is buckled and the buckled part
of sheet is nipped between 3rd drive roller
and fold roller.
6. Sheet is folded and delivered to delivery
belts. The Other Folding Patterns
Single Fold

(5)
4. How to Remove Covers
Rear Cover
- Bind Screw M4 x 8 (2 pcs)
- Tapping Screw M4 x 10 (2 pcs)
Front cover is installed with the top edge
fitted with operation panel. Remove front
cover by pulling front cover diagonally
downward.
Buckle Cover
- Bind Screw M4 x 8 (4 pcs)
Front Cover
- Bind Screw M4 x 8 (2 pcs)
- Tapping Screw M4 x 10 (2 pcs)
Tool : Screwdriver
CAUTION
- Turn off main power and remove any
covers.

(6)
0.5 to 1 mm
Sheet Presence Microswitch
Feed Tray
Actuator
Clutch Stopper
Sheet Feed Clutch Solenoid
Clutch Lever
2 to 4 mm
5. Troubleshooting
A. PF-P320 Does Not Work with Start Button or Test Feed Button
(Cause 1)
Feed clutch solenoid is not
positioned properly.
(Remedy 1)
Adjust the position of feed clutch solenoid so that the
clearance between clutch lever and clutch stopper is 0.5
to 1 mm (0.02" to 0.04") while feed clutch solenoid is
on.
NOTE
- Fix feed clutch solenoid so that feed clutch solenoid
will not hit clutch lever.
(Cause 2)
Sheet presence microswitch on
the top of feed tray is broken,
sheet sensor microswitch is not
positioned properly, or connec-
tor is not connected properly.
(Remedy 2)
- Check or replace sheet presence microswitch from the
square opening on the bottom of frame.
- Position microswitch so that actuator ON position where
click sound is heard is 2 to 4 mm (0.08" to 0.16") above
feed tray.
(Cause 3)
Start/Stop button is broken.
(Remedy 3)
Replace switch or whole P.C. Board.

(7)
2nd Drive Roller
Deflector
Frame Hole
Support Plate
Lubrication
Bush Plate
Fulcrum
Smooth Movement
0.2 to 0.3 mm
5. Troubleshooting
B. Sheets Is Not Folded Correctly with Single Fold
C. Folded Sheet Have Wrinkles
(Cause)
Deflector is deformed or de-
flector drive solenoid is not
positioned properly.
(Remedy)
Adjust deflector so that the clearance between 2nd drive
roller and deflector is 0.2 to 0.3 mm (0.008" to 0.02")
from drive side to operation side while deflector drive
solenoid is on. And also install deflector so that tip of
deflector at the left side touches frame hole while deflec-
tor drive solenoid is off.
NOTE
- Install both sides of support plates without twist of
deflector. And adjust support plate so that deflector
drive solenoid will operate without hitting other parts.
(Cause 1)
Sheets are too thin.
Sheets are curled.
(Cause 2)
Buckles are not set up properly.
(Cause 3)
Fold rollers are not set up prop-
erly.
(Cause 4)
Fold roller are smeared with ink.
(Cause 5)
Fold rollers are deformed by
friction after long time use.
(Cause 6)
Bush plates have some prob-
lems.
(Remedy 1)
Set double feed stop pad and feed tray pressure at weak.
Also slow down operation speed with speed select button.
(Remedy 2)
Set up buckle again.
(Remedy 3)
Install fold rollers in proper position.
(Remedy 4)
Clean fold rollers with alcohol soaked cloth.
(Remedy 5)
Replace fold rollers.
(Remedy 6)
Check that bush plates are not deformed and that they
operate smoothly. After that lubricate fulcrum of bush
plate.

(8)
Drive Pulley Shaft
Slave Shaft
Bottom Plate
Tension Adjust Screw
O-ring
Drive Pulley
5. Troubleshooting
D. Delivery Belts Do Not Work
Delivery Belts
(Cause 1)
Sheet slips on delivery belts
because delivery belts are
loosen.
(Cause 2)
O-ring on drive pulley slips.
(Remedy 1)
a) Tension Adjustment
Loosen tension adjust screw and adjust tension of deliv-
ery belts.
b) Delivery Belts Replacement
Remove bottom plate of delivery belts and then drive
pulley shaft and slave shaft. Replace delivery belts with
new ones.
(Remedy 2)
If drive pulley slips on delivery belt, clean o-ring on
drive pulley with alcohol-soaked cloth. If drive pulley
slips nevertheless, replace drive pulley with new one.

(9)
Stopper
Fix Screw
(It goes 4 mm up and down.)
Indication
Panel
Stopper
Buckle Home Position Sensor
Upper Limit Stopper
5. Troubleshooting
E. Finished Size Is Not the Same As Set Up Size
(Cause)
Buckle home position sensor is
not positioned properly.
(Remedy)
Loosen stopper fix screw, then buckle home position
sensor can be move up/down by 4 mm.
NOTE
- Adjust sensor within 2 mm. Otherwise PF-P320 may
be locked by stopper's hitting upper limit stopper.
- When stopper fix screw is fastened, make sure stopper
is not skewed.
F. Misfeed Occurs (Feed Roller Rotates)
(Cause 1)
Sheet is too thick. (Out of specifi-
cation)
(Cause 2)
Fold rollers are worn out.
Fold rollers get worse.
(Cause 3)
The pressure of double feed stop
pad is too strong.
(Cause 4)
Feed tray does not operate cor-
rectly because spring is loosen.
(Cause 5)
Sheet is caught between feed
guides as they are too tight.
(Cause 6)
Feed tray pressure is weak
(Remedy 2)
Replace feed rollers.
(Remedy 3)
Weaken pressure of double feed stop pad.
(Remedy 4)
Check on feed tray movement or replace spring in
feeding section.
(Remedy 5)
Readjust feed guide.
(Remedy 6)
Set feed tray pressure at standard or strong.

(10)
Front Guide
Feed Guide
Feed Guide
Adjust Knob
Parallel
Feed Guide
Right-angled
H. Folding Result Is Not Good
5. Troubleshooting
G. Double Feed Occurs
(Cause 1)
Sheet is too thin. (Out of speci-
fication)
(Cause 2)
Feed roller or double feed stope
pad is worn out.
(Cause 3)
Sheets are curled.
Sheets stick each other with ink.
(Cause 4)
Sheets have static electricity.
(Remedy 2)
Clean double feed stop pad or replace it with new one.
(Remedy 3)
Fan sheets well.
(Remedy 4)
Fan sheets well a few minutes later.
(Cause)
Sheet is too thin. (Out of speci-
fication)
Sheet is not cut square.
Sheet is curled.
(Cause)
Feed guides are set improperly.
(Remedy 1)
Adjust feed guides so that feed guides are right-angled
with front guide and feed guides are parallel each other.
(Continued on the next page)

(11)
Fix ScrewBuckle Stopper
Skew
Sheet
Lever
Fold Roller Spring
Wire
Roller Lever
(Remedy 3)
1. Turn power off and remove buckle cover.
2. Feed a sheet to buckle by turning feed roller by hand.
Make sure that sheet is not skewed.
3. Check that the leading edge of sheet is parallel to buckle
stopper.
4. If buckle stopper is not parallel with sheet edge, loosen
two fix screws and adjust stopper angle so that it will be
parallel to sheet.
NOTE
When adjusting buckle stopper, use exactly square sheet.
(Refer to "3. How to Remove Covers" in page 6.)
5. Troubleshooting
(Remedy 2)
Replace fold roller spring.
NOTE
- In case wire is cut, replace wire as shown in the draw-
ing below.
(Cause 2)
Fold roller spring is loosen.
(Cause 3)
Stopper in buckle is set im-
properly.
(Continued on the next page)

(12)
(Remedy 4)
Clean fold rollers with alcohol soaked cloth.
(Remedy 5)
Remove all jammed sheets in buckles.
(Remedy 6)
Readjust support roller position.
(Remedy 7)
Replace feed roller or double feed stop pad.
(Remedy 8)
Replace fold rollers.
(Cause 4)
Fold rollers are dirty with ink.
(Cause 5)
Sheets are jammed in buckle.
(Cause 6)
Support rollers are set improp-
erly.
(Cause 7)
Feed roller or double feed
stope pad is worn out.
(Cause 8)
Fold roller is worn out.
5. Troubleshooting

(13)
5. Troubleshooting (Electronic Control)
[1] "Error Check Breaker" Is Still Indicated in Spite of Turning Power on
(Cause 1)
Circuit breaker for buckle is
tripped because of sheet jam.
(Cause 2)
Stopper in 1st or 2nd buckle is
locked at top dead end.
(Cause 3)
Stopper in 1st or 2nd buckle is
locked at bottom dead end.
(Remedy 1)
Push breaker button below feed tray. (Refer to page 16.)
(Remedy 2)
Turn off power and lower stopper with stopper
microadjust knob and turn on power again. In case 2nd
buckle stopper is raised and locked as soon as power is
turned on, press reset button (Refer to "[5] Buckle Stop-
per Lowers Further After It Stops at Bottom Dead End".)
or replace control P.C.B. with new one.
(Remedy 3)
Turn off power and raise locked buckle stopper about 20
mm and turn on power again. In case buckle stopper is
locked at bottom dead end as soon as power is turned on,
check function of buckle home position sensor with LED
on control P.C.B.. (Refer to page 17.) If sensor is not
activated, replace sensor with new one or press reset
button to reset memory (Refer to [5].) or replace whole
control P.C.B. with new one.
[2] Monitor Remains "0 / 0" and Motor Does Not Rotate
(Cause 1)
Sheet is jammed between fold
rollers or in buckle.
(Cause 2)
Feed tray position microswitch
is not activated.
(Cause 3)
Buckle stopper(s) is(are)
locked.
(Remedy 1)
Remove jammed sheet between fold rollers or in buckle.
(Remedy 2)
Check function of position sensor with LED on control
P.C.B.. If sensor is not activated, adjust position of
sensor or replace sensor. If sensor is working correctly
and motor does not rotate, check on fuse 3A. (Refer to
page 16.) If sensor is not still activated, replace whole
control P.C.B. with new one.
(Remedy 3)
When buckle stopper is locked at bottom dead end,
follow the above remedy [1]-3. When stopper is locked
at top dead end, check function of buckle stopper en-
coder sensor with encoder sensor LED on control P.C.B..
(Refer to page 17.) If sensor does not work, replace
sensor with new one. If sensor works, replace control
P.C.B..

(14)
(Remedy)
Press reset button to clear memory in CPU. If PF-P320
does not work properly still, replace control P.C.B..
5. Troubleshooting (Electronic Control)
[3] "0 / 0 Jamming" Indication on Monitor Appears After 3 to 4 Sheets.
Then Folding Can Not Be Started with START Button
(Cause 1)
Counter sensor is covered with
dust or alike.
(Cause 2)
Irregular size sheets are used
or folding pattern is not regular
pattern.
(Cause 3)
Sheet is jammed in sensor unit
or buckle.
(Remedy 1)
Clean sensor. (Refer to page 17.) If the error is not
recovered, sensor is broken or sensor wire is cut. Re-
place sensor or check wires or replace control P.C.B..
(Remedy 2)
Select short fold or accordion fold with fold pattern
select button to provide interval between sheets and
move buckle stopper to required fold position by hand.
(Remedy 3)
Remove jammed sheet.
[4] Alarm Continues Sounding When Power Is on or Lamps of Folding
Pattern and Sheet Size Do Not Illuminate Correctly
(Cause)
Memory in CPU may be broken.
(Remedy)
Turn off power and raise locked buckle stopper about 20
mm by hand. And then turn on power again during
pressing clear button. (Memory in CPU will be cleared
and buckle stopper must be stopped at bottom dead end.)
In case buckle stopper is locked at bottom dead end as
soon as power is turned on, replace whole control P.C.B.
with new one.
(Cause)
Memory in CPU may be broken.
[5] Buckle Stopper Lowers Further After It Stops at Bottom Dead End
(Remedy)
Check that buckle open sensor works correctly with
buckle open LED on control P.C.B.. If not, adjust the
position of buckle stopper or check wires. If not still,
replace control P.C.B..
(Cause)
Stopper plate for buckle is not
set properly or buckle open
sensor does not work correctly,
or sensor wire is cut.
[6] "Close Buckle" Indication on Monitor Remains to Be Shown

(15)
(Remedy)
Check that counter sensor works correctly with counter
sensor LED on control P.C.B.. And check sensor wires
are cut or short-circuit. If LED illuminates correctly,
replace receiver of sensor. If the error is not still recov-
ered, replace both receiver and projector of sensor. If not
still, replace control P.C.B..
(Cause)
Counter sensor unit may be
broken.
5. Troubleshooting (Electronic Control)
[7] "0 / 0 Feed Error" Is Indicated on Monitor After 3 to 4 Sheets
[8] When Power Is on, Buckle Returns to Home Position and Rise to Top
Dead End and Then Is Locked (Circuit Breaker Trips)
(Cause)
Buckle encoder sensor is
broken.
(Remedy)
Check on buckle encoder sensor with encoder sensor
LED on control P.C.B.. (Refer to page 17.) If 1st buckle
is normal, LED 5 and 6 flash one after the other ; if 2nd
buckle is normal, LED 1 and 2 flash one after other. If
either of LEDs illuminates, replace sensor. If sensor is
normal, replace control P.C.B..