DUPLO DF-970 (01) PDF MANUAL

In this manual, several symbols are used to indicate important warnings. These symbols have the following meanings:

Note: Describes instructions which must be followed in use. Be sure to read the instructions to avoid problems due to incorrect operations.

Memo: Indicates supplementary or useful information.

Ref: Describes names of related items and supplementary instructions.

WARNING: Ignoring this mark could result in the possibility of serious injury or even death.

CAUTION: Ignoring this mark could result in the possibility of injury or physical damage.

Triangle with exclamation mark: This mark indicates a “Warning” or “Caution”. A graphic may be shown inside the mark to describe the warning or caution more specifically.

Circle with a diagonal line: This mark indicates a forbidden action. A graphic may be shown inside the mark to describe the forbidden action more specifically.

Solid circle: This mark indicates actions that must be performed. A graphic may be shown inside the mark to describe the action to be performed more specifically.

For North America Note:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

– Reorient or relocate the receiving antenna.

– Increase the separation between the equipment and receiver.

– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

– Consult the dealer or an experienced radio/TV technician for help.

Make sure the power supply used is always within the following range:

Power supply: 100 to 240 V AC, 50/60 Hz

Rated current (Rated power): 1 to 0.5 A (88 W)

When you power other appliances from the same AC outlet, make sure that the combined power consumption does not exceed the power supply capacity.

WARNINGS:

Use only the power supply voltage specified on the main nameplate. Using other voltages could result in a fire or an electrical shock.

Make sure that the combined power consumption of the appliances to be connected does not exceed the capacity rating of the power outlets or plug receptacles. Exceeding the capacity rating could cause the power outlets, plug receptacles, or power extension cords to overheat and catch a fire.

Operate this unit in the following environment:

• where the temperature range is between 5 and 35°C/41 and 95°F (-10 to 50°C/14 to 122°F in storage)

• where the humidity range is between 20 and 80% RH (10 to 90% RH in storage, however no condensation)

• which is not subject to direct sunlight

• which is reasonably free from dust

• which is subject to little or no vibration

• which is free from air-borne salt

• where there are no harmful chemicals

• where the unit is not exposed to water

WARNINGS:

• Keep this unit and the power cord away from heaters and heater vents. Excessive heat could melt the cover or power cord covering, and result in a fire or an electrical shock.

• Do not place metal objects or vessels containing liquids on top of the unit. The entry of any metal object or liquid could result in a fire or an electrical shock.

• Do not insert any metal or easily-combustible object inside this unit. This could result in a fire or an electrical shock.

• Do not use flammable sprays inside or near the unit (e.g. when cleaning the unit). Such flammable gas may ignite and cause a fire or combustion.

CAUTIONS:

• Do not install this unit in a location where there is excessive humidity or where contact with water is possible. Poor choice of location could result in deterioration of the insulation, a fire or an electrical shock.

• Install this unit on a level, stable stand or floor, with sufficient space around it. Failure to do so could result in the unit overturning and causing injury.

• Disconnect the power plug from the power outlet before attempting to move this unit. Failure to do so could result in power cord damage, a fire or an electrical shock.

• Always disconnect the power plug from the power outlet when the unit is not to be used for an extended period. Failure to do so could result in a fire due to leakage current if the insulation should deteriorate.

WARNINGS:

• Do not damage the power cord or power plug. Do not scratch, alter, bend, twist, pull or place heavy objects on the power cord or power plug. This could result in damage, a fire or an electrical shock.

• Do not touch the power switch with wet hands. Otherwise electric hazards may occur.

• Do not remove the cover or back panel. This unit contains high-voltage components that could cause an electrical shock.

• Do not disassemble, modify or repair this unit. There is a danger of fire, electrical shock or injury. Contact your dealer when repairs are necessary.

Required Actions:

• If any foreign object such as metal or liquid should enter this unit, immediately turn the unit off at the power switch and disconnect the power plug from the power outlet. Failure to do so could result in a fire or an electrical shock. Contact your dealer immediately.

• Before cleaning this unit, turn the unit off at the power switch and disconnect the power plug from the power outlet. Accidental operation of the unit during cleaning could result in injury.

• If the unit emits smoke, unusual heat or unusual odors, immediately turn the unit off at the power switch and disconnect the power plug from the power outlet. Failure to do so could result in a fire or an electrical shock. Contact your dealer immediately.

• Remove any dust that accumulates on the power plug prongs and the surface of the plug from which the prongs extend. Accumulated dust could result in a fire.

• Always grip the plug when disconnecting the power plug from the power outlet. Forcibly pulling on the power cord could cause damage, resulting in a fire or an electrical shock.

Forbidden Actions:

• Do not touch or insert foreign objects into any rotating part during operation. This could result in injury.

CAUTION:

• Because of its structure, there are tiny protruding objects inside the unit. Be careful when putting your hand inside the unit. This could result in injury.

“WARNING” and “CAUTION” labels are pasted on the machine to ensure user safety.

• Do not remove or change them.

• When the labels become dirty or are lost, be sure to contact your dealer for a new one.

• This machine is designed to fold paper into six popular folding modes: Single fold, Double fold, Irregular accordion fold-out, Letter fold, Accordion-fold, and Gate fold.

• Use the cross fold lever to fold single folded paper further into standard folding. To perform cross fold with the DF-970, the DF CROSS FOLD UNIT (option) is needed.

• Use the DF HAND FEED KIT (option) to bind and fold at maximum three sheets of paper simultaneously.

• Do not fall down the folding plates. Make sure the folding plates are not subject to shock. Otherwise, the folding plates may damage, resulting in poor folding accuracy.

• The machine may make loud sounds while operating according to the processing speed and paper used due to its paper-folding mechanism.

• Be sure to move this machine with the bottom surface of this machine held by two persons.

(*1) Provided as an option for the DF-970.

1. Open the side cover.

2. Remove the tape fixing the interlock lever. Note: Be sure to remove this tape, as the interlock does not function when using the machine without removing the tape.

3. Check that the folding stopper does not protrude from the cover on the paper feeding side of the folding plate 2. If it is protruding, it will touch inside the machine. If so, rotate the gear in the direction of the arrow to move the folding stopper to the inner section of the cover. Note: Do not hold the belt section of the folding plate 2, as this could result in a malfunction.

4. Insert the folding plate 2 into the main body of the machine. Attach it by holding with both hands. Insert it along with the set guide of the main body. Ensure it is attached properly. Note: The side cover will not close if the folding plate 2 is not attached correctly. Do not force the side cover closed.

5. Store the T-shape hexagonal wrench, an accessory part, at the designated position inside the machine.

6. Close the side cover.

7. Open the support paper feed tray to the left side from the operator’s viewpoint.

8. Insert the folding plate 1 into the main body of the machine along with the set guide. Attach it by holding with both hands. Note: If it’s not easy to attach, check that the gear on the reverse side of folding plate 1 rotates in the front-back direction. Attach it after rotating the gear by 360 degrees if needed.

9. Open the top cover. WARNING: Open or close the top cover gently. Hands or fingers may be caught, resulting in injury.

10. Rotate the jam correction handle to check that the folding roller rotates smoothly.

11. Place the cross fold lever as shown in the figure (this is an option for the DF-970). Note: Be sure to store the cross fold lever at the specified place and direction to avoid damage to the folding roller.

12. Close the top cover.

13. Open the paper receiving tray to the right side as seen from the operating side.

14. Attach the auxiliary paper ejection guide to the stacker roller.

15. Connect the power cord. First, install the power cord to the machine. WARNING: Do not touch the power plug with wet hands. Then, connect the power plug to the outlet.

(*) :Provided as an option for the DF-970.

The menu will be displayed if the menu key is pressed while the top screen is displayed. Press the menu key to change setting windows. The function screen can be switched with the ▲ key or ▼ key. Determine the selected item with the Enter key.

Example: Opening the [Paper size setting] window

1. Press Menu while the top screen is displayed. A setting window will be displayed.

2. Press the ▲ key or ▼ key to select [Set].

3. Press the Enter key. The item can be changed.

4. Press the ◀ key or ▶ key to select your desired setting (e.g., [Man] for manual).

5. Press the Enter key. The selected details are set.

6. Press the Menu key. Returns to the top screen.

In this machine, the buzzer sounds in confirmation when setting on the control panel or paper runs out on the paper feed tray. Classification of the sounds is as follows:

“pi” : Operational sound at the time of normal key operation

“pipi” : Warning alarm at the time of mis-operation, mis-feed of paper, or paper empty

“pii” : At the start of folding operation or end of normal folding operation, or in confirmation of change of various settings

“piipii” : At the occurrence of an error such as paper jam

“piipiipii” : At the occurrence of an error to be asked for Duplo dealer’s assistance

Paper type:

Fine quality paper: 52.3 to 157 g/m²/14 to 40 lb

Rough paper, Stencil paper, Recycle paper, Specific art paper, Specific coated paper

Paper size:

Standard Paper (The standard paper can be used only when it is stacked in the machine direction.)

Non-standard paper:

Width: 74 to 311 mm / 2.91 to 12.24 inches

Length: 105 to 457.2 mm / 4.13 to 18.0 inches

* The aspect ratio for non-standard paper is 1:1 to 2.2:1.

Some limitations in setting and paper quality may be applied depending on paper size. The A6, A7, or B7 paper can be used as non-standard paper.

Paper that cannot be used with this machine:

• Paper out of specifications

• Curled paper

• Wavy paper

Paper used:

• Make sure that the printing ink on the paper has dried completely prior to use.

• Note: Wet ink or ink that is not completely dried may stain the folding roller causing trouble such as smearing on paper.

• Note: Use of paper printed with special types of ink may cause the folding roller to swell or deform, and folding misalignment may occur.

• Paper may not be fed smoothly into the folding plate or deformed folding may occur depending on different environmental factors (temperature, humidity), paper ream weight, paper type, paper grain direction if curled paper is used. Make sure to flatten curled paper or paper with folded lines before use.

• Separate the sheets of paper well before stacking them.

Precautions on stacking paper:

• Do not stack the sheets of paper on the paper feed tray with the sides of sheets unaligned or some sheets protruding from the stack.

• This machine has an automatic standard paper size detection function (DF-980). It automatically detects paper size at the paper feed guides. Therefore, if paper is protruding out from the left or right side, it is unable to detect paper size accurately and may determine standard paper as non-standard.

• Note: Processing with sheets unaligned on the right or left side may cause such trouble as folding misalignment and jamming.

• Do not stack paper on the paper feed tray with the lead and trail edges unaligned or some sheets protruding out.

• Note: Processing with sheets unaligned on the lead and trail edges may lead to unstable feed causing such trouble as mis-feed and double-feed.

The flowchart below illustrates the flow of basic operation. For details, refer to the text and relevant pages in the manual.

1. Turning on the power

2. Stacking paper

3. Selecting folding mode

4. Setting processing speed

5. Test feed

6. Starting paper folding

7. Ending paper folding

8. Removing processed paper

9. Turning off the power

Make sure that the power plug is connected to the wall socket.

Turning on the power:

Set the power switch to the “I” side.

WARNING: Do not touch the power switch with wet hands. Otherwise electric hazards may occur.

Turning off the power:

Set the power switch to the “O” side.

CAUTION: Do not put fingers inside during operation. Keep away long hair, ties, jewelry and loose clothing. It could cause injury.

Steps 1 and 6 are not necessary with the DF-980. Move on to steps 2 to 5 for the DF-980.

1. (DF-970 only) Raise the paper set lever. The paper feed stand will come down to the paper stacking position when the paper set lever is raised.

2. Loosen the guide fixing screw.

3. Stack paper on the paper feed tray. Push in the paper until the lead edge touches the paper feed inlet lightly. The maximum paper stacking height is 46 mm/1.81 inches.

4. Adjust the paper feed guide to match the paper size. Set the paper feed guide in such a way that it touches the paper lightly. Note: Do not press the paper with the paper feed guides too strongly, otherwise paper feed errors such as mis-feed will occur. For the DF-980, if the guides are positioned incorrectly, the automatic paper size detection function will not work, and the test/start key will not operate.

5. Tighten the guide fixing screws. Note: Make sure to tighten the guide fixing screws on both right and left sides. If the screws are not fixed, the paper feed guide moves during operation, and folding misalignment may occur.

6. (DF-970 only) Lower the paper set lever. The paper feed stand will go up to the paper feeding position. Note: [Tray Error] is displayed on the LCD if the paper feed tray is not at the paper feeding position, and operation will not start.

Automatic rise/descent of the paper feed tray (DF-980)

When paper is stacked on the paper feed tray, the paper feed guides are set, and the start or test key is pressed, the paper feed tray rises automatically. Note: When using large or heavy paper, the paper feed tray may become over-stacked and may not be able to rise due to paper weight. In such cases, stack less paper.

The paper feed tray descends automatically when paper is removed from the paper feed tray. It will also descend automatically when paper runs out on the paper feed tray during a folding operation.

CAUTION: Do not put fingers inside during operation. Keep away long hair, ties, jewelry and loose clothing. It could cause injury.

1. (DF-970 only) Select the size of standard paper used with the paper size select key.

2. Check the paper size display. For the DF-980, the paper size is detected automatically. The paper size is not displayed if the paper feed guide is not positioned as specified. If not, reset the paper feed guide to a correct position. Note: For the DF-980, when paper of standard paper size is stacked on the paper feed tray in the sideways direction, the paper size is detected as wrong. Use paper as non-standard paper when stacking sideways.

3. Press the folding mode key to select the folding mode.

4. Set the feeding pressure adjustment lever to [0]. As the value of the scale increases, the paper feed pressure increases. If paper mis-feed occurs, increase the pressure to [1]. If double-feed occurs, lower the pressure to [-1].

5. Set the separating pressure adjustment dial to [0]. Paper separating pressure increases as the scale value increases. If double-feed occurs, increase the separating pressure by 0.5 on the scale.

6. Press the ▲ or ▼ key to set the processing speed. Adjust the speed for thick or thin paper as needed.

7. Adjust the position of the paper receiving tray. Set to [A] to stack ejected paper diagonally. Set to [B] to stack ejected paper straight.

8. Attach the paper support guide to the paper receiving tray from the paper ejection section, if needed for your paper type and fold.

9. Press the test key. Test fold two sheets of paper. Note (DF-980): If the machine does not start, automatic detection of paper size may not be functioning. Check the paper feed guide is set appropriately. Note (DF-970): If the machine does not start, check the paper set lever is lowered.

10. Check the finish of test folding. Check for any misalignment.

11. Select the method of using the counter. You can use “Count Up” (starts from 0) or “Count Down” (enter a target number).

12. For “Count Down”, press the keypad to enter the number of sheets to be processed.

13. Press the start key to start folding. Press the stop key to interrupt or stop. Press start again to restart.

1. Turn off the power switch. WARNING: Do not touch the power switch with wet hands.

2. Disconnect the power plug from the outlet. WARNING: Do not touch the power plug with wet hands.

3. Remove the power cord from this machine.

4. Close the support paper feed tray.

5. Remove the auxiliary paper ejection guide and paper support guide. Store them with caution in order not to lose them.

6. Return the height of the stacker roller to the standard position.

7. Hang the hook section of the paper receiving tray.

8. Hang the auxiliary paper ejection guide on the paper receiving tray.

When the folded paper is misaligned along the sides, correct using the skew correction knob of the paper feed tray.

1. Check that the paper feed guides are set correctly. Gaps between the paper and paper feed guides will cause folding misalignment.

2. Remove the paper stacked on the paper feed tray.

3. Rotate the skew correction knob and adjust:
• Folding misalignment A (leading edge on right is fed earlier): Rotate the knob in the clockwise direction.
• Folding misalignment B (leading edge on left is fed earlier): Rotate the knob in the counterclockwise direction.

4. Stack paper on the paper feed tray. Push in paper so that the edge of paper comes lightly in contact with the guide plate.

5. Tighten the guide fixing screw on the paper feed guide.

6. Perform test folding.

7. After completing folding operations, return the skew correction knob to the standard position (align the pin with the round hole).

When the folded paper is misaligned along the vertical length, adjust the positions of the folding stopper of folding plates 1 and 2 to correct the misalignment.

Adjustment method:

Adjust the positions of the folding stopper using the stopper adjustment keys of folding plates 1 and 2 on the control panel.

• Folding plate 1: The folding stopper of folding plate 1 moves in direction A (longer fold) by pressing the ▶ key, and moves in direction B (shorter fold) by pressing the ◀ key.

• Folding plate 2: The folding stopper of folding plate 2 moves in direction A (longer fold) by pressing the ▶ key, and moves in direction B (shorter fold) by pressing the ◀ key.

Example Operation:

1. Press the stopper adjustment key of the folding plate you want to adjust (e.g., plate 1).

2. Press the ◀ or ▶ key to set the desired adjustment value (e.g., [+0.5]). The value is displayed on the top right of the LCD.

3. Press the Enter key. The changed value is set.

Registering the adjusted value:

To save the adjustment permanently for that paper size and fold type, press the Enter key for a longer time after adjustment. The buzzer sounds “pii” once and the adjustment value is registered. To cancel a registered value, set it to [0] and press and hold the Enter key.

The paper may not be folded properly due to the characteristics of paper. In such cases, check the following points:

• Do not use paper outside the specifications. Particularly, deformed folding occurs frequently in the use of thin, flimsy paper not appropriate.

• Lower the processing speed when deformed folding occurs for thin and flimsy paper.

• Separate paper well prior to stacking.

• Stack paper on the paper feed tray after aligning well, and set the paper feed guides at the correct positions. Also tighten the fixing screws of the paper feed guides firmly.

This method is to register the paper length of paper other than standard paper, select the standard folding mode, and fold paper.

1. Press the menu key to display [Paper Size Set].

2. Press the Enter key.

3. Press the ◀ key or ▶ key to select [Man] (for manual input).

4. Press the Enter key.

5. Press the ▼ key to select [P Length].

6. Press the Enter key.

7. Input the paper length on the keypad. The setting range is 105.0 to 457.2 mm / 4.13 to 18.00 inches.

8. Press the Enter key. The inputted value will be set.

9. Press the Menu key to return to the top screen.

The procedures taken after that will be the same as the steps 3 to 12 in “How do I perform a standard fold?”.

Custom folding is an operation method to fold paper at any position by specifying the folding stopper positions (folding position) of the folding plates 1 and 2.

1. Prepare a folding sample manually using the paper to be folded.

2. Measure the length of the folding position of the sample (e.g., Fold1 = length A, Fold2 = length B).

3. Press the menu key to display [Custom Set] display.

4. Input the registration number (01-20 for DF-980, 01-10 for DF-970) using the numerical keypad or the keys. [00] cannot be used.

5. Press the Enter key. The registration number is set and [P Length] can be changed.

6. Input [P Length] (total paper length) using the numerical keypad.

7. Press the Enter key. The value is set, and [Fold1] can be changed.

8. Input [Fold1] using the numerical keypad.

9. Press the Enter key. The value is set, and [Fold2] can be changed.

10. Input [Fold2] using the numerical keypad.

11. Press the Enter key. The value is set, and the display will return to the top screen.

After this, you can proceed with standard folding operations. To use the saved custom fold, press the custom folding key (DF-980) or paper size select key (DF-970) to select your registered data.

Locking the registered data:

1. Press the menu key to display the [Custom Set] screen.

2. Select the registration number to be locked on the keypad or with the ◀ or ▶ key.

3. Press the stop key. The lock icon will be displayed to the right of the registration number.

4. Press the stop key again to release the lock.

5. Press the Menu key to return to the top screen.

Clearing the registered data:

1. Press the menu key to display the [Custom Set] screen.

2. Select the registration number to be cleared on the keypad or with the ◀▶ key.

3. Press the clear key for about two seconds. A buzzer sounds “pii” and the registered data will be cleared.

4. Press the Menu key to return to the top screen.

A DF CROSS FOLD UNIT (optional item) is needed for cross fold with the DF-970. Cross fold is folding a single-folded paper another time. The maximum paper thickness is fine quality paper 104.7 g/m²/28 lb.

1. Stacking paper:

1. Single fold standard paper according to the standard folding procedure.

2. Press the folded line of the single-folded paper with the fingertip to ensure it is folded firmly.

3. Raise the paper set lever (DF-970).

4. Loosen the guide fixing screw.

5. Stack the single-folded paper on the paper feed tray with the folded line toward the anti-operating side. Max stacking amount is 25 mm/0.98 inch.

6. Attach the paper feed guide lightly to the side of the paper and tighten the fixing screws.

7. Lower the paper set lever (DF-970).

2. Adjustment of the parts:

1. Turn off the power switch.

2. Disconnect the power plug from the outlet.

3. Take the T-handle hexagonal wrench.

4. Open the top cover.

5. Loosen the screw of the auxiliary paper feed ring (for moving) using the T-handle hexagonal wrench.

6. Move the auxiliary paper feed ring so that it will be on the folding line of the paper.

7. Tighten the loosened screw. Store the T-handle wrench in its original position.

8. Set the separating pressure adjustment dial to [0]. Set it as low as possible to prevent the folded paper from opening during feed.

9. Set the feeding pressure adjustment lever to [3]. Set the pressure within the range of scale [3] to [5].

10. Take out the cross fold lever.

11. Attach the cross fold lever to the paper feed guide on the left side, so the weight roller is on the folding line.

12. Close the top cover.

3. Operation procedures:

1. Turn on the power.

2. Set to single folding using the folding mode key.

3. Press the test key to test fold.

4. Check the finish. After operation, store the cross fold lever at its original position.

Art paper and coated paper often stick to each other and become difficult to separate, resulting in double-feed. Follow this procedure:

1. Separate paper well. Some recycled art or coated paper may be unsuitable for folding due to weak stiffness.

2. Align the paper.

3. Stack the paper on the paper feed tray.

4. Attach the paper feed guide. Note: Do not stack too many sheets. The amount should be about half the height of the paper feed guide (approx. 25 mm/0.98 inch).

5. Set the feeding pressure adjustment lever to [3]. Set it within the [3] to [5] range on the scale. If paper slips, increase the pressure to [4] or [5].

6. Set the separating pressure adjustment dial to [2.5]. If double-feed occurs, increase the separating pressure by [0.5] at a time.

7. Press the test key to test fold.

8. Check the finish. If abnormal folding occurs, decrease the processing speed.

Note: After completing the folding operation, return the paper feeding pressure and separating pressure each to [0]. Using the higher settings for fine quality paper may cause double-feed or damage to the paper.

Rough paper, recycled paper:

Some recycled paper may be thin, flimsy and easy to curl. Pay attention to the following points:

• Separate paper well prior to stacking on the paper feed tray.

• Set the processing speed as low as possible. If set to high, wrinkles or deformed folding will result.

• Set the paper feed pressure as low as possible. If set to high, double-feed will result.

• Set the paper separating pressure as low as possible. If set to high, the center of the lead edge of the paper may be scratched or turned over.

B7, A7, A6 size paper:

This paper is regarded as non-standard paper, and the paper length must be registered manually.

• Folding mode limitations:
B7: Single fold, Gate fold
A7: Single fold
A6: Single fold, Letter fold, Accordion-fold, Gate fold

• Note: If small and light paper is used, too fast processing speed will result in stream-feed (continuous feed). Decrease the processing speed as slow as possible.

Some thick and stiff paper may not be ejected smoothly because the paper may open after folding. Change the stacker roller height to widen the space for the paper to pass in ejection.

1. Remove the auxiliary paper ejection guide and paper support guide.

2. Lift the stacker roller and hold it with hand to move to the raised [A] position shown in the figure.

Note: After completing folding operations, be sure to return the stacker roller to the standard position. Leaving it in the raised state will result in poor alignment of ejected paper.

The angle of the paper receiving tray of this machine can be changed. The folded paper can be stacked in the following two ways:

• Straight stacking

• Diagonally stacking

If you use the paper support guide when diagonally stacking paper satisfying the following conditions, the paper will be ejected and stacked neatly:

• Paper size: A4/LT

• Thickness of paper: Fine quality paper 64 g/m²/16 lb, 81.4 g/m²/22 lb

• Folding mode: Letter fold, Accordion fold

Thick paper mode:

Set this mode when double folding B4 or larger, thick (104.7 g/m²/28 lb or more) fine quality paper. Use only thick paper in this mode to avoid unstable paper feed and premature wear.

1. Press the ▶ key on the top screen, and set the processing speed to [5].

2. Press the ▼ key. The processing speed display reverses, and the thick paper mode has been set.

Press the ▲ key to clear the thick paper mode.

Thin paper mode:

Use the thin paper mode when handling thin and flimsy paper such as rough paper and recycled paper. Do not use for other paper types to avoid jams.

1. Press ◀ key on the top screen, and set the processing speed to [1].

2. Press the ▲ key. The processing speed display reverses, and the thin paper mode has been set.

Press the ▼ key to clear the thin paper mode.

This function reads the thickness of paper on test folding and detects when more than one sheet is fed at a time.

1. Press the menu key to display [D-Feed Detect].

2. Select [Set] with the ▲ or ▼ key and press Enter.

3. Select [ON] with the ◀ or ▶ key and press Enter.

4. Select [Thickness] with the ▲ or ▼ key and press Enter.

5. Select [Thin] or [Thick] with the ◀ or ▶ key and press Enter.

6. Press the Menu key to return to the top screen. An icon will be displayed.

Important Notes:

• Be sure to test fold before starting paper folding when this setting is [ON]. The machine will not start if a test fold is not performed.

• The data on paper thickness is cleared when changing the [Thickness] setting. Test fold again.

• Be sure to perform test folding every time printing materials are changed.

• If false double-feed detection occurs on [Thin], repeat the test fold after setting to [Thick]. If it still occurs, this function cannot be used.

• If false mis-feed detection occurs on [Thick], repeat the test fold after setting to [Thin]. If it still occurs, this function cannot be used.

Note: Make sure that you disconnect the power cord from the wall outlet before cleaning. Before you use the machine after cleaning, make sure that its surface is completely dry.

CAUTION: Do not use flammable sprays and solvents during cleaning. Doing so could cause build-up of gas inside the machine, which in turn could cause ignition, resulting in fire and explosion.

1. Cleaning paper feed rings and folding rollers

• Open the top cover.

• Paper feed ring: Clean with a cloth moistened with alcohol, rotating the paper feed ring by hand.

• Folding roller: Remove folding plate 1. Clean with a cloth moistened with alcohol while rotating the jam correction knob.

2. Cleaning the LCD

• Wipe the LCD on the control panel with a dry cloth.

3. Cleaning the stacker belt

• Remove the auxiliary paper ejection guide.

• Wipe the stacker belt with a cloth moistened with alcohol while rotating it by hand.

4. Cleaning the sensor

• Remove dust on the infeed sensor, the paper ejection sensor (front) and the paper ejection sensor (back) by blowing air with a non-flammable air duster. Wait about five minutes after using the duster for condensation to clear.

• Paper feed inlet sensor (up and down), paper sensor: Open the top cover. Insert the nozzle of the air duster into the hole shown in the figure to blow air.

• Paper ejection inlet sensor upper: Remove folding plate 1. Spray the air duster onto the sensor.

• Paper ejection inlet sensor lower: Open the side cover. Remove folding plate 2. Spray the air duster onto the sensor, or wipe with a dry cloth.

5. Cleaning the paper separator

• When the paper separator is dirty, paper slippage or double-feed may occur. For cleaning of the paper separator, contact Duplo dealer.

Warning Errors

Motor Errors

Paper Jam Errors

Errors Requiring a Service Call

When the following error codes are displayed, turn the power off and on. If the error is not cleared, contact Duplo dealer.

E130, E240, E340, E840, E910, E930, E940

CAUTION: Do not put fingers inside during operation. Keep away long hair, ties, jewelry and loose clothing. It could cause injury.

Paper feed ring:

1. Open the top cover.

2. Remove slowly the jammed paper near the paper feed ring.

3. Close the top cover. (If paper cannot be pulled out easily, first remove all paper from the feed tray and then pull out the jam.)

Folding roller / Folding plate:

1. Take out folding plate 1.

2. Open the side cover.

3. Take out folding plate 2.

4. Open the top cover.

5. Pull out the paper by rotating the jam correction knob.

6. Close the top cover.

7. Insert folding plate 1 and folding plate 2.

8. Close the side cover.

Forcible Ejection (Folding Plate): Holding on the C (clear) key, press the Cancel key. This will forcibly eject the paper inside the folding plate.

Forcible Ejection (Ejecting Section): Holding on the Test key, press the Cancel key. The paper is forcibly ejected.

• Cause: Paper is not stacked.
Solution: Stack paper on the paper feed tray.

• Cause: The paper switch is not responding.
Solution: Stack paper in the correct position so that the paper switch responds.

• Cause: Paper has jammed.
Solution: Remove jammed paper.

• Cause: The top cover and side cover are open.
Solution: Close the covers. The side cover will not close if folding plate 2 is not attached correctly.

• Cause: Non-standard paper is used in standard paper settings (DF-980).
Solution: Change the settings to match non-standard paper.

• Cause: The paper feed guide is off the paper size detection area (DF-980).
Solution: Secure the paper feed guide correctly.

• Cause: The paper set lever is not lowered (DF-970).
Solution: Lower the paper set lever.

• Cause: Test folding is not performed even though the setting is changed to [ON] in [Double-feed Detection Setting] (DF-980).
Solution: Perform a test fold.

• Cause: A6, A7, B7 or other non-standard paper is used.
Solution: Input the paper size.

Double-feed of paper has occurred:

• Cause: Paper feed pressure is too high.
Solution: Decrease the paper feed pressure.

• Cause: Paper separating pressure is too low.
Solution: Increase the paper separating pressure.

• Cause: The paper separator is stained.
Solution: For the cleaning of paper separator, contact Duplo dealer.

• Cause: Paper is sticking and difficult to separate.
Solution: Check that the printing ink of the paper has dried and there is no static electricity, and then separate the paper well.

Mis-feed of paper has occurred:

• Cause: Paper feed pressure is too low.
Solution: Increase the paper feed pressure.

• Cause: Paper separating pressure is too high.
Solution: Decrease the paper separating pressure.

• Cause: The paper feed ring is stained.
Solution: Clean with a cloth moistened with alcohol.

• Cause: Paper out of specifications is used.
Solution: Do not use paper outside the specifications.

• Cause: Paper is not separated before being stacked.
Solution: Separate the paper enough.

• Cause: The paper feed guide is pressed against the paper too strong.
Solution: Set the paper feed guide so that it touches the paper lightly.

Folding misalignment along the vertical length of the paper occurs:

• Cause: Processing speed was changed midway through operation or paper type was changed midway through operation.
Solution: Adjust the folding stopper positions of folding plates 1 and 2.

• Cause: The folding plate was removed while the stopper fixed mode was ON.
Solution: Press down the cancel key and clear key at the same time.

Folding misalignment along the sides of the paper occurs:

• Cause: Too many sheets of paper are stacked.
Solution: Reduce the paper amount.

• Cause: The paper feed guides are not set properly.
Solution: Set the paper feed guides properly.

• Cause: The fixing screws of the paper feed guides got loose and the paper feed guide slipped out of position.
Solution: Tighten the fixing screws of the paper feed guides.

• Cause: Paper is not cut properly.
Solution: Correct the folding misalignment along the sides of the paper using the skew correction knob.