Unitec EP-42F User manual

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OPERATION MANUAL
Paper Folder EP-42F
Read this Operation Manual before using this machine. Keep the Operation Manual with
care in a fixed storage place so that it may be available whenever required.

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Safety Instructions
Danger
This Symbol stands for immediate danger threatening the life and health of
persons. Disregarding these instructions may cause severe damage to health
and even serious injuries.
Caution
This symbol stands for an endangering situation that may occur. Disregarding
these instructions may lead to slight injuries or damage to property.
Note
This symbol stands for notes, operational hints and other useful information.
They are convenient for exploiting the machine’s functional abilities.
Danger
Make sure that the machine is electrically grounded. This prevents an electric
shock when there is a leak of electricity.
Use the machine at 110 – 120 VAC, 220 – 240 VAC with a frequency of 50Hz
to 60Hz. A fire may start or the machine may break down if a higher or lower
voltage is used, or if an electric current with a frequency that is not within the
range of frequency stated above.
Do not place any object on this machine. A fire may start or electricity may leak if
water or a foreign object enters inside the machine.
Handle the power cord with care. A fire may start or an electric shock may be
caused if the cord is damaged, broken, or processed, if a heavy object is placed on
the cord, or if the cord is bent forcibly.
Do not pull the power plug out of or put it in the electric outlet using a wet hand.
Otherwise, an electric shock may be caused.
Do not remove the cover of this machine. Otherwise, an electric shock or injury
may be caused.
Do not remodel this machine. Otherwise, a fire may break out or an electric shock
may be caused.
If the machine is used when it is in an abnormal condition, such as generating heat,
emitting smoke, and giving out a strange smell, a fire may break out or an electric
shock may be caused. Turn off the power switch immediately and then pull the
power plug out of the electric outlet. Afterward, consult with your dealer.
If abnormalities such as the power cord generating heat and giving out a strange
smell are found, turn off the power switch immediately and then pull the power plug
out of the electric outlet. Afterward, consult your dealer.
If a foreign object enters into the machine, turn off the power switch first and then
pull the power plug out of the electric outlet. Afterward, consult your dealer.
If thunder approaches, pull the power cord out of the electric outlet to prevent a fire
or breakdown caused by the falling of a thunderbolt.

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Caution
Do not let hairs, a necktie, or necklace hang above the drive of the machine.
Doing so may cause an injury.
Do not put the machine on an unstable place such as a shaky stand and a slant
floor. Doing so may cause the machine to drop or fall down, causing an injury.
Do not put the machine in a moist or dusty place. Doing so may start a fire or
cause an electric shock.
Be sure to pull out the power cord while holding the plug. If the power plug is
pulled out while holding the cord, a fire may break out or an electric shock may
be caused.
Be sure to pull the power plug out of the electric outlet first when moving this
machine. Otherwise, the cord may be damaged, causing a fire or an electric
shock.
Be sure to pull the power plug out of the electric outlet for safety purposes when
this machine is not used for consecutive holidays or for other reasons.

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Introduction
Thank you very much for purchasing the Paper Folder EP-42F.
This machine enables users to achieve greater efficiency in clerical work by releasing them
from paper-folding work that has manually been performed in the past. Please read this
Operation Manual carefully before using this machine.
Contents
Safety Instructions ............................................................................................ 2
Introduction .......... ........................................................................................... 4
Contents ........................................................................................................... 4
1 Information Before Use ................................................................................. 5
(1) Precautions on Installation
(2) Checking Accessories
(3) Part Name
(4) Operation Panel and Functions
2 How to Use .................................................................................................... 8
1. Preparation
(1) Setting Table 1 and 2
(2) Setting Paper
(3) Setting Paper Ejection Roller
(4) Setting Paper Stacking Table
2. Operation Procedure
(1) Switching the Power on
(2) Setting Paper Fold Position
(3) Test Folding
(4) Adjusting Paper Fold Position
(5) Slant Ejection Adjustment
(6) To start Folding
(7) To Stop Paper Feed
(8) Correction of Paper Jam
(9) Special Folding (Cross Folding)
3 Maintenance ................................................................................................ 12
4 Trouble Shooting ......................................................................................... 13
5 Specifications .............................................................................................. 14

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1 Information Before Use
(1) Precautions on Installation
Caution Do not install it in an unstable place such as on a faltering bench or an inclined place.
It may fall down or drop and cause an injury.
Do not install it in a dusty place or a place of high humidity.
It may cause a fire, or an electric shock.
Do not install it in a place exposed to direct sunlight.
Avoid a location near a window.
It should be used at an ambient temperature of 5 to 35C
Do not install it in a location near a heating equipment.
Do not install it in a place exposed to a direct wind.
(2) Checking Accessories
Check accessories immediately after unpacking. Should there be anything short, contact your dealer.
Also, check if the warranty has the dealer’s sign and the date of purchase is mentioned.
Accessories Qty Illustration
Table 1 1
Table 2 1
Power cord 1
Machine cover 1
Operation Manual 1

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(3) Part Name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 17 18
Number Name Number Name
(1) Roller cover (10) Table 1
(2) Left side cover (11) Control panel
(3) Paper feed roller (12) Paper feed table
(4) Paper guide (13) Table 2
(5) Auxiliary feed table (14) Right side cover
(6) Paper ejection roller (15) Paper feed table lever
(7) Paper stacking table (16) Power switch
(8) Stopper plate (17) Inlet
(9) Fold position adjustment knob (18) Circuit breaker

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(4) Operation Panel and Functions
10
CLEAR/RESET
EP-42F
1000 100
RUN
JAM NONE
1TEST START/STOP
(2)(1)(3)(4)
(5) (6)
No. Designation/Indication Function
(1) Test key Test folds two sheets without counting.
(2) Start/Stop key Starts and stops the machine.
(3) Clear/Reset key Clears counter indication resets error.
(4) Numerical key Inputs the desired number for subtraction counting .
(5) Counter Show the number of sheets.
(6) Check lamp It lights when paper stock runs short, or indicates the
location where paper feed trouble occurs.

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2 How to Use
1. Preparation
(1) Setting Table 1 and 2
Fit (a) and (b) of Table 1 and (c) and (d) of Table 2 on the studs (a), (b), (c) and (d) at the left and
right sides of the side plate.
When setting Table 1, be sure to put the stopper plate in the center. If Table 1 and 2 are
not properly set, the machine may not be able to fold paper correctly.
(a)
(d)
(c)
(b)
(d)
Stopper Plate
(c)
(2) Setting Paper
(1) Pulling the paper stacking table out and
set it while lifting the auxiliary table.
(2) Raise the paper feed table lever.
(3) Set the paper guide at the indication for the
size of paper stock table used.
(4) Place the paper on the feed table with its printed side facing up.
* Load the paper neatly.
* Load the paper on the paper feed table with its leading edge flush with the front plate of
feed tray.
Caution
Be sure to ensure that both Table 1 and 2
don’t have a warp and are properly fit in the
positions of the studs (a), (b), (c) and (d).
If they are improperly set, it may cause
incorrect folding, or they may come off the
machine, causing an injury.
Paper guide
Auxiliary feed table
Paper stacking
table
Paper feed
table lever

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* Place the paper with its printed side down in case of fold-out.
(5) Place the paper on the feed table so that it touches the paper lightly, and then tighten the
paper setscrew.
(6) Lower the paper feed table lever and set the paper.
* If the paper does not come in contact with the paper feed roller, it may be fed improperly. In
such case, the leading edge of the paper may touch the guide plate in the front and prevent the
paper from being fed. In this case, reset it by sliding it a little backward.
* If the paper has curled or wrinkled part, it may cause trouble. Correct it before use.
* In case of printed paper, use it only after the ink is dry, otherwise the paper feed rubber roller,
paper separator, fold roller, and other parts of the unit will be stained with ink, which may cause
trouble.
* Do not use ruled paper as it may cause paper folding to deteriorate.
(3) Setting Paper Ejection Roller
Set the paper ejection roller at the indication for the
size of paper stock table used. If the roller is set at
a wrong position, it may cause trouble such as a
coiling of paper around the roller.
* The folded paper length may be altered
depending on fold type and paper curl may be
caused by changes of temperature and humidity.
Therefore, whenever paper jam occurs at the
stage of ejection, reset to adjust the paper eject
roller to the best position.
(4) Setting Paper Stacking Table Pull out the paper
stacking table and set it so that the ejected sheets
flow out smoothly.
2. Operation Procedure
(1) Switch the power on.
Insert the power plug into the outlet.
Switch the power on.
* Be sure to remove the power plug from the outlet after use.
(2) Setting Paper Fold Position
Pull the half-nut lever in the direction of the arrow to move the stopper plate to the desired
position on Table 1 and 2, matching the stopper plate mark( ) with the position, and leave
the half-nut lever there. The stopper plate automatically locks at the position where the half-nut
lever remains.
* In case of single fold only, all sizes paper should be set at the position of “ALL SIZES”. Should
wrinkles or irregular folding occur in single fold, move the stopper plate until halting by the
stopper adjustment knob.
Paper discharge roller

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(3) Test Folding
Fold position adjustment knob
Stopper plate
Press the Test key to feed two sheets of paper. Check if the paper has been folded correctly by
examining the second one of the two folded sheets.
* When the fold position is not correct, refer to “Adjustment Paper Fold Position”.
Caution Never put your hand in any of driving part such as a roller.
It may cause an injury.
Do not bring hair, a tie, or a necklace and so on near any of driving part such as a roller.
It may cause an injury.
(4) Adjusting Paper Fold Position
When the fold position is incorrect, refer to the following chart.
Adjustment Knob Set Chart (to indicate the direction of turning the knob
* The illustration represents the folded paper seen from the operator.
*( ) shows length of folding and L stands for paper length.
(5) Slant Ejection Adjustment

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Turn the slant ejection adjustment knob to the right if the lower side of the folded paper slants to
the right. Turn the knob to the left of the lower side slants to the left.
* In other cases than single fold, place the folded paper with its face down on Table 1 and make
slant ejection adjustment.
Slant adjustment knob
(6) To start Folding
Press the Start/Stop key. Then, the machine starts to fold the sheets continuously.
Press the Start/Stop again while the machine is in operation, it will be halted.
* The counter continues to add up.
If the desired number of sheets only is to be fed, set that number by pressing 1000, 100,10 keys.
Then, the Reduction Mode lamp will be on.
* In case of printed paper, use it only after the ink is dry, otherwise the paper feed rubber roller, paper
separate, fold roller, and other parts of the unit will be stained with ink, causing trouble.
* Under the following conditions, the machine will automatically stop feeding.
• When the Start/Stop key is pressed while there is no stock.
• When the Start/Stop key is pressed while the paper feed lever is at the lower position.
• When the stock runs short •
• When paper feed slip occurs • When paper jam occurs at Table 1 and Table 2
•when paper stack table is full.
• when paper jam occurs at the paper ejecting unit.
* Press the Clear/Reset key to reset after the error is corrected.
(7) To Stop Paper Feed
Press the STOP key to halt paper feed while the machine is in operation.
(8) Correction of Paper Jam
Should paper jam occurs, switch the power off immediately and remove the jammed sheets.
When the jammed paper is stuck around the folder roller or other parts, it can be easily removed
by detaching the Table 1 and 2 from the unit.
* When the roller cover is opened, the machine will stop the operation in an instant.

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3 Maintenance
(1) Before cleaning the machine, be sure to switch the power off and pull the power plug from the
outlet.
(2) When the unit is not in use, put its cover in place to prevent dust, paper chips, etc. to
accumulating on the paper fold rollers.
(3) If paper chips, ink, etc. are accumulated on the paper fold rollers, it may cause trouble such as
wrinkles, or improper folding. To prevent from it, clean them periodically as follows:
(1) Remove Table 1 and 2.
(2) Clean the surface of the fold rollers using the cleaning kit to remove stains or dust.
(4) If paper chips, ink, etc. are accumulated on the paper feed rubber roller and the paper separator,
paper feed performance deteriorates and the machine becomes liable to paper jam or slip. To
prevent from it, clean them periodically as follows:
(1) Clean the surface of the paper feed rubber fold rollers using the cleaning kit to remove stain or
dust.
(2) Move the paper feed shaft toward you in the order as shown in the figure of the upper right
then, clean the paper feed shaft.
(5) Consumable products.
(1) Paper feed rubber roller, rubber brake, paper feed separator used for the unit are consumable
products.
(2) Fold rollers are guaranteed for as long as six months.

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4 Trouble Shooting
Trouble Possible Cause Measures
Paper stuck just after it is printed Loosen the paper sufficiently or feed the
paper after it is dry.
Stains on the paper separator Clean the paper feed separator using the
unit cleaner.
The paper is not fed Stains on the paper feed rubber roller. Clean the paper chips or ink on the paper
feed roller with the unit cleaner.
(slipped) The paper separator is worn out. Replace the paper separator with a new one.
The volume of the paper loaded on
the paper feed table is not enough.
If the volume on the paper feed table is not
enough, it does not feed since the paper
detection lever is installed. Load 20 sheets
or more.
The machine does not
operate even after the
Start/Stop key is
pressed. Paper jam inside the unit. Detach Table 1 and 2 and remove the paper
in the unit.
Paper stuck just after it is printed Loosen the paper sufficiently or feed the
paper after it is dry.
Stains on the paper separator Clean the paper separator using the unit
cleaner.
Stains on the paper feed roller Clean the paper chips or ink on the paper
feed roller with the unit cleaner.
Wrinkles appear on the
paper. Stains on four paper fold rollers Clean the stain on four fold rollers using the
unit cleaner.
Table 1 and 2 are not properly set. Reset properly.
Paper jam in Table 1 and 2 Detach Table 1 and 2 and remove the
jammed paper out.
Improper fold position The total length of the paper is not
standard size. Measure the total length of the paper and adjust using the fine adjustment knob
The surface of four fold rollers are
stains with paper chips or ink (slippery
situation)
Clean away the stain on four fold rollers
using the unit cleaner.
Drawing paper (125kg
or lighter) cannot be
folded. Low room temperature
The paper gets stiff and hard to fold at the
low room temperature in winter. Perform
folding after leaving the paper as it is for 3 to
4 hours at the temperature of 20 to 25C.

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5 Machine Specifications
Model EP-42F
Paper size 91 x 128 mm (B7) to 297 x 432 mm (A3) or 3.5” x 5.0” to 11” x 17”
B7 size is for SINGLE only. B6 size cannot be folded into GATE.
Paper weight 45 – 220 g/m2(up to 135 g/m2 for single folding)
Paper quality Woody paper, high-quality paper, high-quality paper for stencil printing,
medium-quality paper
Fold type Single,
(Folding twice) Letter, Zigzag, Double, Parallel, Fold-out, Gate
Maximum
Table 1: 330 mm
Table 2: 224 mm
Fold dimensions Minimum
Table 1: 50 mm
Table 2: 40 mm
Paper feed system Three-roller friction feed system
Max. stacking
capacity 500 sheets (64/m2)
Folding speed 50Hz 7000 / 60Hz 8000 sheets (A4 single folding)
Operation method Pressing digital keys
Power
Voltage (V) 220 -240 V / 110-120V
Consumption
(W) 50W
Frequency (Hz) 50-60Hz
Dimensions W820 · D530 · H520 mm (while in use) W660 · D530 · H520 mm (when put away)
Net weight 27.0 kg