Duplo DF-755 Instruction Manual
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Duplo DF-755 Instruction Manual

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INSTRUCTION MANUAL
Duplo Folder
DF-755
Be sure to read this manual prior to use.
Please leave this manual at the site of use for easy reference.

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Summary of Contents for Duplo DF-755

  • Page 1 INSTRUCTION MANUAL Duplo Folder DF-755 Be sure to read this manual prior to use. Please leave this manual at the site of use for easy reference.
  • Page 2 Introduction Thank you for purchasing a Duplo product. Be sure to read this manual prior to using the product. After reading, leave the manual at the site of use for easy reference whenever questions related to the product arise in the future.
  • Page 3 For EU DECLARATION OF CONFORMITY DUPLO CORPORATION, located at 1-6, Oyama 4-chome, Chuo-ku, Sagamihara-shi, Kanagawa-ken 229-1180, Japan, declares that the following product, • Name of product : Duplo Folder • Models : DF-755 complies with the provisions defined by the regulations listed below.
  • Page 4 For EU Disposal of Old Electrical & Electronic Equipment This symbol (the symbol of the crossed out wheeled bin) indicates that in European countries this product should not be disposed of as household waste. Please recycle where facilities exist by checking with your local authority or supplier for recycling advice.
  • Page 5 For North America “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.
  • Page 6 Memo...

  • Page 7: Safety Precautions

    Safety Precautions Safety Precautions In this manual, operations and handling of the unit which are hazardous are described using the following marks to prevent personal injury or property damage to the user and others. Ignoring this mark could result in the possibility of serious injury or even death.
  • Page 8 Safety Precautions Operating Environment 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 85% RH (10 to 90% RH in storage, however no condensation) ●...

  • Page 9: Maintenance / Other

    Safety Precautions Maintenance / Other 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.

  • Page 10: Warning / Caution Labels

    Safety Precautions WARNING / CAUTION Labels "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. North America When changing a fuse, make sure that the fuse rating is same...

  • Page 11: Table Of Contents

    Contents Safety Precautions Safety Precautions ........i 5. Correcting FoldingMisalignment ...3-27 Power Supply ............i 5-1. Correcting Folding Misalignment along Vertical Length of Paper ............3-27 Operating Environment ........ii 5-2. Correcting Folding Misalignment along Maintenance / Other ...........iii Sides of Paper..........3-30 WARNING / CAUTION Labels ......iv Chapter 4 TROUBLESHOOTING GUIDE Chapter 1 BEFORE OPERATION 1.
  • Page 12 Memo Safety Precautions...

  • Page 13: Chapter 1 Before Operation

    Chapter 1 BEFORE OPERATION...

  • Page 14: Features

    Features Chapter 1 BEFORE OPERATION The DF-755 is designed to fold paper into six popular folding patterns and is capable of folding the fol- lowing number of sheets. For EU Approximately 125 sheets of paper per minute (when single folding A4 size fine quality paper 64 g/ m²)

  • Page 15: Setting Up The Machine

    Setting Up the Machine Chapter 1 BEFORE OPERATION 2-1. Components 220 to 240 V (For EU) 120 V (For North America) Name Qty. Remark First folding plate Attached to the right upper section on the operator's side. Second folding plate Attached to the right lower section on the operator's side.

  • Page 16: Removing The Press Release Lever

    Chapter 1 BEFORE OPERATION 2-2. Removing the Press Release Lever The press release levers are attached to the unit at shipment to prevent the rubber roll from becoming distorted. Be sure to remove them when setting up the machine. The two types of press levers are attached to either side of the rubber roll. Non-operator’s side Operator’s side Press release lever (A)

  • Page 17: Locking The Bearing Support Levers

    Chapter 1 BEFORE OPERATION 2-3. Locking the Bearing Support Levers The bearing support levers are released at shipment to prevent the rubber roll from becoming distorted. After removing the press release levers, be sure to lock the bearing. Unfold the paper receiving tray. Unfold the support paper feed plate.

  • Page 18: Attaching The Parts

    Chapter 1 BEFORE OPERATION Turn the bearing support lever on the non-operator's side in the direction Non-operator’s side of the arrow. The bearing will be locked. Because the bearing support lever presses down the rubber roll, if it is not Bearing support lever locked, thick paper may not be folded properly.
  • Page 19 Chapter 1 BEFORE OPERATION Make a ground connection using the earth wire attached to the power plug. ● Make sure that you make a ground connection before connecting the power plug to the wall socket. ● If earth leakage occurs without a ground connection, a short circuit may cause fire and electric shock.

  • Page 20: Names And Functions

    Names and Functions Chapter 1 BEFORE OPERATION Under the main cover [17] [16] [15] [14] [13] [12] [11] [10] Paper feed table (operator’s side) [18] [19]...
  • Page 21 Chapter 1 BEFORE OPERATION Name Function First folding plate Guide plate for deciding a paper folding position. First folding is made using this plate. Fine adjustment knob Used when adjusting a paper folding position. Rough adjustment knob Used when deciding a paper folding position. Control panel Used when operating the machine.

  • Page 22: Describing Control Panel

    Describing Control Panel Chapter 1 BEFORE OPERATION For EU For North America Name Function Counter/LCD display Counts up the number of folded paper or displays the status of the machine. Up to four digit number is displayed. Stop button When pressed, the machine stops. Start button When pressed, the machine starts folding operations.

  • Page 23: Handling Paper

    Handling Paper Chapter 1 BEFORE OPERATION 5-1. Paper Used ● Make sure that the printing ink on the paper has dried completely prior to use. ● If used without the ink completely dried, the folding roller or paper may become dirty. ●...
  • Page 24 Chapter 1 BEFORE OPERATION ● When stacking just a few sheets of paper on Paper Guide plate the paper feed table, lower the paper set lever while pressing the lead edge of the paper against the guide plate. Paper set lever 1-12...

  • Page 25: Emergency Stop

    Emergency Stop Chapter 1 BEFORE OPERATION An emergency stop device to ensure safety has been installed to the top cover. Opening the cover during operations will stop the machine. To resume operations, follow the procedures below. Top cover Close the top cover. Press the Start button.
  • Page 26 Memo Chapter 1 BEFORE OPERATION 1-14...

  • Page 27: Chapter 2 Basic Operation

    Chapter 2 BASIC OPERATION...

  • Page 28: Standard Folding Of Standard Paper

    Standard Folding of Standard Paper Chapter 2 BASIC OPERATION 1-1. Standard Paper For EU There are six types of standard paper sizes; A3, B4, A4, B5, A5, and B6. Paper Size Long×WIde (mm) Paper Size Long×WIde (mm) 420×297 364×257 297×210 257×182 210×148 182×128...

  • Page 29: Standard Folding

    Chapter 2 BASIC OPERATION 1-2. Standard Folding There are six types of standard folding modes: single fold, double fold, irregular accordion fold, letter fold, accordion fold and gate fold. Paper is folded as shown below when the paper is placed on the paper feed table with its print side facing upward.
  • Page 30 Chapter 2 BASIC OPERATION After pressing the side guide to each Side guide Fixing screw side of the paper lightly, tighten the screws to secure the side guides. Fixing screw Paper can be stacked to a height of ap- proximately 45 mm/1.77 inches at one time.
  • Page 31 Chapter 2 BASIC OPERATION 2) Turn the fine adjustment knob to the right and left a few times and check that Fine adjustment knob Fine adjustment knob it moves slightly. For EU When stacking A4 and B5 size paper with long edge feed, move the rough adjustment knob to the mark of “A5”...
  • Page 32 Chapter 2 BASIC OPERATION Move the stacker rollers to the ap- propriate position referring to the table of stacker rollers position at- tached to control panel section (for EU) or to the paper receiving tray (for North America). The machine shown in the figure to the Stacker roller right is a North America model.
  • Page 33 Chapter 2 BASIC OPERATION Check the finish of test folding. Check for folding misalignment using the second test folded sample. If folding misalignments occur, refer to Chapter 3 "ADVANCED OPERATION"“5. Correcting Folding Misalignment” p.3-27). Test folded sample After completing adjustments, press the C (clear) button for more than two seconds to clear the counter to "0."...
  • Page 34 Chapter 2 BASIC OPERATION Folding paper into two Because the second folding plate is not used for a single fold, move the rough adjustment knob of the second folding plate to the upper end in the following methods. 1) Slide the rough adjustment knob of the sec- ond folding plate up to the upper end while lifting it up.

  • Page 35: Chapter 3 Advanced Operation

    Chapter 3 ADVANCED OPERATION...

  • Page 36: Single Folding Of Standard Paper

    Single Folding of Standard Paper Chapter 3 ADVANCED OPERATION 1-1. Single Folding Thick Paper When folding drawing paper or fine quality thick paper 104.7 g/m²/34 lb into two, the edge of the fold- ing line of the paper or a part near the center may bend due to environmental conditions (temperature, humidity), paper size, paper fiber direction, etc.
  • Page 37 Chapter 3 ADVANCED OPERATION After completing adjustments, press the C (clear) button for more than two seconds to clear the counter to "0." Clear button Press the Start button to start folding operations. Press the Stop button to interrupt or stop the operations.

  • Page 38: Double Folding Thick Paper

    Chapter 3 ADVANCED OPERATION 1-2. Double Folding Thick Paper When folding fine quality thick paper 104.7 g/m²/28 lb into four, its folding section may open when ejected to the stacker because of the paper thickness and consequently the folded paper may not be able to pass through the stacker rollers, resulting in paper jam.
  • Page 39 Chapter 3 ADVANCED OPERATION Move the stacker rollers to "5." The machine shown in the figure to the right is a North America model. Stacker roller While lifting up the stacker rollers Stacker roller with your hand, pull the levers (left Lever and right) attached to the stacker Stacker lever...
  • Page 40 Chapter 3 ADVANCED OPERATION After completing adjustments, press the C (clear) button for more than two seconds to clear the counter to "0." Clear button Press the Start button to start folding operations. Press the Stop button to interrupt or stop the operations.

  • Page 41: Double Folding Small Thin Paper

    Chapter 3 ADVANCED OPERATION After the operations have complet- Stacker roller ed, move the left and right levers Lever attached to the stacker lever in the Stacker lever direction of the arrow. Belt If the stacker rollers are left lifted up, problems will occur when the normal paper size is used.
  • Page 42 Chapter 3 ADVANCED OPERATION Attach the guide plate unit to the in- nermost center between the two pa- per ejection belts. Paper ejection belt Guide plate unit Guide plate unit Move the stacker rollers to "4." The machine shown in the figure to the right is a North America model.
  • Page 43 Chapter 3 ADVANCED OPERATION If the paper is not ejected smoothly, change the position of the stacker rollers. The machine shown in the figure to the right is a North America model. Stacker roller Check the finish of test folding. Check for folding misalignment using the second test folded sample.
  • Page 44 Chapter 3 ADVANCED OPERATION Press the Start button to start folding operations. Press the Stop button to interrupt or stop the operations. Pressing the Start button again will resume operations. When there is no paper on the paper feed table, the machine will stop automatically and the counted number and "NO PAPER"...

  • Page 45: Custom Folding Of Standard Paper

    Custom Folding of Standard Paper Chapter 3 ADVANCED OPERATION Custom folding is the method of folding paper where you specify the folding stoppers of the first and second folding plates. The following describes the custom folding procedures taking accordion fold as an example.
  • Page 46 Chapter 3 ADVANCED OPERATION Accordion fold (example) Fold a piece of paper as desired and measure the dimensions of the A, B and C. The folding sizes should be within the fol- lowing ranges. A: 40 to 325 mm/1.60 to 12.80 inches (folded size for the first folding plate) B: 40 to 216 mm/1.60 to 8.50 inches (folded size for the second folding plate)
  • Page 47 Chapter 3 ADVANCED OPERATION Move the stacker rollers to the ap- propriate position referring to Table of Stacker Rollers Position on the next page. The machine shown in the figure to the right is a North America model. Stacker roller Use the table just as a reference.
  • Page 48 Chapter 3 ADVANCED OPERATION Press the Start button for test fold- ing. Press the Stop button after a couple of folded sheets are ejected. Check the finish of test folding. Check for folding misalignment using the second test folded sample. If folding misalignments occur, refer to Chapter 3 "ADVANCED OPERATION"“5.

  • Page 49: Standard Folding Of Non-Standard Size Paper

    Standard Folding of Non-Standard Size Paper Chapter 3 ADVANCED OPERATION Paper other than the six standard size paper are called non-standard size paper. The paper size that can be used as non-standard size paper is as follows. Paper feed Maximum: 297 (W) x 432 (L) mm/11.00 (W) x direction 17.00 (L) inches Minimum: 128 (W) x 182 (L) mm/5.00 (W) x...
  • Page 50 Chapter 3 ADVANCED OPERATION Move the stacker rollers to the ap- propriate position. The machine shown in the figure to the right is a North America model. Refer to Table of Stacker Rollers Position for their appropriate position ( p.3-13). Stacker roller For this example, move the stacker rollers to "2"...
  • Page 51 Chapter 3 ADVANCED OPERATION After pressing the side guide to each Side guide Fixing screw side of the paper lightly, tighten the screws to secure the side guides. Fixing screw Side guide Lower the paper set lever. The paper feed table will be raised. Make sure that you lower the paper set lever.
  • Page 52 Chapter 3 ADVANCED OPERATION Press the Start button to start folding operations. Press the Stop button to interrupt or stop the operations. Pressing the Start button again will resume operations. When there is no paper on the paper feed table, the machine will stop automatically and the counted number and "NO PAPER"...

  • Page 53: Cross Folding

    Cross Folding Chapter 3 ADVANCED OPERATION Cross folding is to fold single-folded paper another time into two or three. Cross fold Cross single fold Cross letter fold ● The maximum paper thickness is 104.7 g/m²/28 lb. However, this thickness may differ slightly according to various conditions such as environmental conditions (tempera- ture, humidity), paper size, and paper fiber direction.
  • Page 54 Chapter 3 ADVANCED OPERATION Raise the paper set lever and stack the single-folded paper on the paper feed table with the folded line facing Side guide the non-operator's side. The amount of paper stacked on the pa- per feed table should be approximately 36 mm/ 2/3 (approx.
  • Page 55 Chapter 3 ADVANCED OPERATION Move the rough adjustment knob of the second folding plate to the upper end. ● The rough adjustment knob cannot be turned either clockwise or coun- terclockwise. Make sure that you pull up the knob when you want to move it.
  • Page 56 Chapter 3 ADVANCED OPERATION Take out the cross folding lever stored inside the top cover. Close the top cover. Cross folding lever Attach the cross folding lever to the Cross folding lever pillar located on the side guide of the Side guide non-operator' side.
  • Page 57 Chapter 3 ADVANCED OPERATION Press the Start button for test fold- ing. Press the Stop button after a couple of folded sheets are ejected. Check the finish of test folding. Check for folding misalignment using the second test folded sample. If folding misalignments occur, refer to Chapter 3 "ADVANCED OPERATION"“5.

  • Page 58: Cross Folding Non-Standard Size Paper

    Chapter 3 ADVANCED OPERATION When paper is loaded on the paper feed table, only the counted number will be dis- played. If you press the C button for more than two seconds, the counter returns to "0." If you press the Start button without pressing the C button, folding operations will resume and the accumulated number will be displayed on the counter.
  • Page 59 Chapter 3 ADVANCED OPERATION Raise the paper set lever and stack the single-folded paper on the paper feed table with the folded line facing Side guide the non-operator's side. The amount of paper stacked on the pa- per feed table should be approximately 2/3 (approx.
  • Page 60 Chapter 3 ADVANCED OPERATION Table of Rough Adjustment Knob Positions L=Paper length Folding Single Fold Letter Fold Pattern First Folding Plate Second Upper End Folding Plate 1) According to the table of rough adjust- ment knob positions, move the knob of the first folding plate to 150 mm/6.00 inches (300÷2/12.00÷2).

  • Page 61: Correcting Foldingmisalignment

    Correcting Folding Misalignment Chapter 3 ADVANCED OPERATION Folding misalignment consists of two types; “folding misalignment along the vertical length of the pa- per” and “folding misalignment along the sides of the paper.” 5-1. Correcting Folding Misalignment along Vertical Length of Paper When folded paper is misaligned along the vertical Paper feeding direction length as shown in the figure, turn the fine adjustment...
  • Page 62 Chapter 3 ADVANCED OPERATION First folding plate Fine adjustment knob Folding Style Fold Surface A Adjustment Turn the fine adjustment knob When A is longer Feeding direction clockwise. Accordion fold When A is Turn the fine adjustment knob shorter counterclockwise. Turn the fine adjustment knob When A is longer Feeding direction...
  • Page 63 Chapter 3 ADVANCED OPERATION Adjusting Fine Adjustment Knob of the Second Folding Plate First folding plate Folding Style Fold Surface A Adjustment Fine adjustment knob Single fold The second folding plate is not used in single folding. When B is Turn the fine adjustment knob longer.

  • Page 64: Correcting Folding Misalignment Along Sides Of Paper

    Chapter 3 ADVANCED OPERATION 5-2. Correcting Folding Misalignment along Sides of Paper When folded paper is misaligned along the sides of paper as shown in the figure, turn the slant correction Paper feeding knob to correct the misalignment. direction You may need fine adjustments according to various conditions such as environmental conditions (temperature, humidity), paper quality, paper thickness, paper fiber direction, cutting accuracy and printing conditions.

  • Page 65: Chapter 4 Troubleshooting Guide

    Chapter 4 TROUBLESHOOTING GUIDE...

  • Page 66: Correcting Deformed Folding

    Correcting Deformed Folding Chapter 4 TROUBLESHOOTING GUIDE Check the following when deformed folding occurs. Deformed folding ● Fan paper well before stacking. ● Check if the folding plates have been installed properly. ( p.1-6) ● Spray a commercially-available air duster on the rubber roll because the static electricity may have resulted in deformed folding.

  • Page 67: Removing Jammed Paper

    Removing Jammed Paper Chapter 4 TROUBLESHOOTING GUIDE When paper jam has occurred, "PAPER ERR" will be displayed on the LCD display. Check the ma- chine to find out where the jam has occurred and remove the jammed paper following the procedures below.

  • Page 68: When Paper Has Coiled Around The Rubber Roll

    Chapter 4 TROUBLESHOOTING GUIDE ● Fan paper well before stacking. ● Decrease the stacking amount of paper. 2-3. When Paper Has Coiled Around the Rubber Roll Turn off the machine before following the procedures below. Top cover Open the top cover.
  • Page 69 Chapter 4 TROUBLESHOOTING GUIDE Turn the two bearing support levers Non-operator’s side in the direction of the arrow to re- lease them. Pull the coiled paper towards you to remove it. If you cannot remove the paper easily, turn Bearing support lever the roll backward with both hands and pull the paper.

  • Page 70: When Paper Has Jammed At The First Folding Plate

    Chapter 4 TROUBLESHOOTING GUIDE 2-4. When Paper Has Jammed at the First Folding Plate Remove the first folding plate from the machine. First folding plate Top cover Open the top cover. Pull the jammed paper towards you. Close the top cover. Return the first folding plate.

  • Page 71: When Paper Has Jammed At The Second Folding Plate

    Chapter 4 TROUBLESHOOTING GUIDE 2-5. When Paper Has Jammed at the Second Folding Plate Turn off the machine before following the procedures below. Move the lock lever to the position of "UNLOCK." Lock lever UNLOCK LOCK Second folding plate Remove the second folding plate from the machine.

  • Page 72: When Paper Has Jammed Near The Stacker

    Chapter 4 TROUBLESHOOTING GUIDE 2-6. When Paper Has Jammed Near the Stacker Remove the paper stuck in the stack- er section towards you. The machine shown in the figure to the right is a North America model. Paper...

  • Page 73: Error Messages

    Error Messages Chapter 4 TROUBLESHOOTING GUIDE When a paper jam has occurred or the top cover is open, an error message is displayed on the LCD display. Follow the procedures below to fix the error. Message Cause Solution NO PAPER When the power is turned on, there Stack paper on the paper feed is no paper on the paper feed ta-...

  • Page 74: Troubleshooting

    Troubleshooting Chapter 4 TROUBLESHOOTING GUIDE When trouble has occurred, find the symptom from the table below and solve the trouble according to the solution. If you cannot solve the trouble, contact your dealer. Symptom Cause Solution The machine does not start even The power cord is not inserted to Insert the power cord to the wall when the Start button is pressed.
  • Page 75 Chapter 4 TROUBLESHOOTING GUIDE Symptom Cause Solution Paper slips at the paper feed The paper feed pressure Set the paper feed pressure section frequently. adjustment knob is set to “Thin adjustment knob to “Thick paper.” paper.” p.1-8) The paper feed ring is dirty. Clean it with alcohol.
  • Page 76 Memo Chapter 4 TROUBLESHOOTING GUIDE 4-12...

  • Page 77: Chapter 5 Cleaning The Unit

    Chapter 5 CLEANING THE UNIT...

  • Page 78: Cleaning Each Section

    Cleaning Each Section Chapter 5 CLEANING THE UNIT The adherence of paper dust and printing ink on the rubber rolls and paper feed rings may cause problems such as paper feed errors and folding misalignment. Adherence of paper dust near sensors will also cause misdetection.

  • Page 79: Cleaning The Paper Feed Rings

    Chapter 5 CLEANING THE UNIT While rotating the rubber roll, clean off the dirt with a cloth moistened with alcohol. Rubber roll 1-2. Cleaning the Paper Feed Rings Top cover Open the top cover. Rotate the rubber roll, and clean off the dirt with a cloth moistened with Paper feed ring alcohol.

  • Page 80: Cleaning The Paper Separator

    Chapter 5 CLEANING THE UNIT 1-3. Cleaning the Paper Separator Top cover Open the top cover. Insert a cloth moistened with alcohol Paper feed ring between the paper feed ring (middle) (middle) and the paper separator. Turn the paper feed rings in the di- rection of the arrow.

  • Page 81: Cleaning The Ejection Gate Sensor

    Chapter 5 CLEANING THE UNIT 1-5. Cleaning the Ejection Gate Sensor Clean the ejection gate sensor, located on the back of the stacker rollers using an air duster. Ejection gate Stacker rollers sensor 1-6. Cleaning the Paper Ejection Belts Move the stacker rollers to “5.” Stacker roller Paper ejection belt While lifting up the stacker rollers...
  • Page 82 Memo Chapter 5 CLEANING THE UNIT...

  • Page 83: Chapter 6 Appendix

    Chapter 6 APPENDIX...

  • Page 84: Specification

    Specification Chapter 6 APPENDIX Model DF-755 Type Office use, desktop Paper size Min. 128 (W) x 182 (L) mm/5.00 (W) x 7.00 (L) inches that can Max. 297 (W) x 432 (L) mm/11.00 (W) x 17.00 (L) inches be folded...
  • Page 85 Memo Chapter 6 APPENDIX...
  • Page 86 4-1-6 Oyama, Chuo-ku, Sagamihara-shi, Kanagawa 252-5280, Japan TEL: +81-42-775-3602 FAX: +81-42-775-3606 E-mail: info@duplo.com 86V-74025-0 12050000Z...

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