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Duplo DF-920 - User Manual

Duplo DF-920
64 pages
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PAPER FOLDER
DF-920
INSTRUCTION MANUAL
[120 V]

Table of Contents

Other manuals for Duplo DF-920

Questions and Answers

  • S
    Sarah TorresAug 19, 2025
    Why does paper wrinkle in Duplo Folding Machines?
    • T
      Tara AguilarAug 19, 2025
      Paper wrinkles may occur in Duplo Folding Machines if the press pressure of the folding roller is too strong. Adjust the press pressure, especially setting the press pressure of folding roller 1 weak, around 45 to 46 mm (1.77" to 1.81"). Another cause can be a deformed folding roller, in which case you should replace it.
  • B
    Brenda JacksonAug 22, 2025
    How to fix skewed paper conveyance in Duplo Folding Machines?
    • G
      grahamrichardAug 22, 2025
      If paper is conveyed skewed, it could be due to several reasons. * The left and right nip amount differs between the folding rollers, check the attached state of the reference stopper, and make the roller nip the same. * The thrust play of the folding roller drive gear is large. Adjust so that there is no thrust play. * The press pressure of the folding roller is not balanced between the left and right sides. Adjust the press pressure. * The folding roller is deformed, in which case replace the folding roller.
  • J
    Jennifer HallAug 25, 2025
    What to do if stacker belt rotates heavily on Duplo DF-920?
    • K
      Kyle LawrenceAug 25, 2025
      If the stacker belt rotates heavily, the thrust play of the paper ejection drive shaft and paper ejection clutch may not be appropriate. Adjust it so that the thrust play is less than 0.1 mm (0.004”).
  • J
    Joseph RiceAug 26, 2025
    Why are there abnormal metal sliding sounds during rotation of folding rollers in Duplo DF-920 Folding Machines?
    • J
      James LongAug 26, 2025
      Abnormal metal sliding sounds during rotation of folding rollers may be produced if the plate spring for grounding conduction has worn out. Apply conductive grease or replace the plate spring.
  • C
    Christine BoydAug 28, 2025
    What to do if paper jam occurs in Duplo Folding Machines?
    • M
      Martin HernandezAug 28, 2025
      If a paper jam occurs in your Duplo Folding Machine, fan the paper well and correct any paper curl before use. Inspect the inside of the unit and remove any paper chips. Clean with a cloth moistened with alcohol. Ensure the stacker roller position is set correctly. Consider using a commercially available static electricity removal spray or humidifying the area with a humidifier.
  • T
    Tyler ZhangAug 29, 2025
    How to troubleshoot Duplo DF-920 Folding Machines that won't start?
    • L
      Lawrence BlanchardAug 29, 2025
      If your Duplo Folding Machine doesn't start, stack paper and place it over the paper switch to ensure it's properly pressed. Remove any jammed paper and close any open covers. If using non-standard paper, refer to "11. STANDARD FOLDING OF NON-STANDARD PAPER" (p.32). Accurately adjust the paper feed guides to the paper size on the paper feed tray scale, ensuring no gaps. Finally, turn off the power and re-insert the control cord into the connector.
  • D
    Dan McgrathAug 31, 2025
    How to fix folding misalignment along the sides of the paper on Duplo Folding Machines?
    • W
      Whitney WallaceSep 1, 2025
      To correct folding misalignment along the sides of the paper on your Duplo Folding Machine, reduce the amount of paper. Ensure the paper feed guides are set correctly. Properly tighten the fixing screws. Use the skew correction knob to correct the folding misalignment.
  • R
    robinsonsheilaSep 3, 2025
    Why does paper slip at the paper feed section of Duplo Folding Machines?
    • R
      Ryan JonesSep 3, 2025
      If paper slips at the paper feed section of your Duplo Folding Machine, increase the paper feed pressure and decrease the paper separating pressure. Clean the area with a cloth moistened with alcohol. Ensure the paper's printing ink is dry, and there's no static electricity; fan the paper well. Also, ensure you are using paper that meets the machine's specifications.
  • M
    Michelle JohnstonSep 5, 2025
    What to do if paper is not folded at the normal folding position in Duplo Folding Machines?
    • K
      kyle30Sep 5, 2025
      If paper isn't folding correctly in your Duplo Folding Machine, reset folding plates 1 and 2. Try lowering the processing speed. Fan the paper well and, if needed, use a humidifier to adjust the humidity.
  • K
    Kayla RodriguezSep 6, 2025
    Why continuous feeding occurs with small paper in Duplo DF-920 Folding Machines?
    • R
      Rebecca RogersSep 6, 2025
      Continuous feeding with small paper in your Duplo Folding Machine can be resolved by ensuring you are not using paper outside the specified dimensions. Decrease the paper feed pressure and adjust the paper feed guides firmly to the paper, leaving no gaps. Align the paper well before stacking it on the paper feed tray, and lower the processing speed.

Summary

Introduction

About This Instruction Manual

Overview of the manual's structure and content chapters.

Safety Chapter

Essential user safety precautions and guidelines.

Outline Chapter

Overview of the manual's structure and content chapters.

Basic Operations Chapter

Core procedures for performing basic paper folding.

Correcting Folding Misalignment Chapter

How to fix issues with paper alignment during folding.

Applied Use Chapter

Techniques for folding non-standard paper and custom folds.

Others Chapter

Additional functions, error messages, and troubleshooting.

Safety Precautions

General Safety Warnings

Essential safety warnings and guidelines to prevent injury and damage.

Installation Guide

Installation Location and Moving Safely

Guidelines for choosing a suitable place and safely moving the unit.

Usage Precautions

Power, Environment, Storage, and Maintenance

Specifies power, operating/storage conditions, and maintenance tips.

Installation Procedure

Standard Accessories Included

Lists all parts provided with the paper folding machine.

Installation Steps

Step-by-Step Setup Guide

Detailed instructions for setting up the paper folder and its components.

Parts Identification

External Parts Overview

Identifies and describes the function of each external component.

Internal Parts Overview

Internal Components Description

Details the function of internal parts and connectors.

Control Panel Operations

Panel Layout and Key Functions

Explains the purpose and operation of each button and key on the panel.

Control Panel Features

LCD Display and Energy Saving Modes

Explains LCD messages and unit functions for conserving energy.

Buzzer Sound Indicators

Meaning of Buzzer Alerts

Explains the meaning of different buzzer sounds during operation.

Precautions Before Use

Paper Handling and Preparation Guidelines

Guidelines for selecting and preparing paper before folding.

Paper Stacking and Detection

Proper Paper Stacking

Instructions for correct paper alignment on the feed tray.

Automatic Paper Size Detection

How the unit automatically identifies paper sizes.

Paper Feed Tray Operations

Tray Rise;Descent and Paper Orientation

Controls of the paper feed tray and checking paper orientation.

Folding Methods Overview

Quick Start Guide Usage

Instructions on how to use the quick start guide for basic operations.

Types of Paper Folding

Introduces standard, non-standard, and custom folding methods.

Standard Folding Procedures

Standard Paper Types and Modes

Lists standard paper sizes and the six available folding patterns.

Performing Standard Folding

Operation Steps for Standard Folding

Step-by-step guide for performing standard paper folding.

Standard Folding Adjustments

Pressure, Speed, and Test Folding

Adjusting pressure, speed, and performing test folds for optimal results.

Folding Results Check

Checking Fold Finish and Using Counter

Evaluating test fold outcomes and utilizing the sheet counter.

Folding Misalignment Correction

Correcting Side Alignment

Adjusting the skew correction knob for side-to-side alignment.

Vertical Folding Alignment

Correcting Vertical Length Misalignment

Adjusting folding stopper positions for length alignment.

Folding Misalignment Restrictions

Adjustment Range and Limitations

Details limitations on stopper adjustments based on paper and mode.

Correcting Deformed Folding

Addressing Deformed Folds

Steps to diagnose and fix paper deformation during folding.

Non-Standard Paper Folding

Paper Size and Operation for Non-Standard Paper

Size limits and steps for folding non-standard paper.

Custom Folding Setup

Paper Size and Operation for Custom Folding

Size limits and detailed steps for setting custom folding parameters.

Cross Folding Introduction

Cross Folding Methods and Precautions

Outlines cross folding types and important considerations before starting.

Cross Folding Standard Paper

Procedure for Cross Folding Standard Paper

Step-by-step guide for cross folding standard paper types.

Advanced Cross Folding

Cross Folding Non-Standard and Custom Positions

How to perform cross folding on non-standard paper and at specific positions.

Handling Special Papers

Art, Coated Paper Characteristics and Operation

Properties of special papers and procedures for folding them.

Using Special Papers

Thick Paper and Recycled Paper Usage

How to fold thick paper and tips for using recycled paper.

Special Paper Handling

Folding Small Size Paper

Specific settings and procedures for folding small paper sizes.

Stacker Roller Adjustments

Stacker Roller Position and Height

Adjusting roller position and height for better paper ejection.

Additional Functions

Interval Folding and Stopper Modes

Setting intervals for folding and configuring stopper behavior.

Advanced Functions Setup

Refold and Fixed Stopper Mode Configuration

Configuring the unit to remember settings or fix stopper positions.

Paper Jam Troubleshooting

Feed Section and Feed Ring Jams

Procedures for clearing jams in the paper feed area and near the feed ring.

Clearing Internal Jams

Folding Plate and Roller Jams

How to clear paper jams within folding plates and around rollers.

Folding Plate Specific Jams

Jams Near Folding Plates 1 and 2

Steps to clear paper jams occurring near folding plates 1 and 2.

Ejection Section Jams

Paper Jams in Ejection Area

Procedures for clearing paper jams in the ejection area.

Error Message Reference

Paper Jam Error Codes

Lists paper jam error messages and their solutions.

Unit Error Codes

Details error messages for open covers or incorrect settings.

Malfunction Error Codes

Explains error messages related to motor or connection issues.

Troubleshooting Common Issues

Unit Not Starting and Motor Issues

Checks and solutions for unit startup failures and motor problems.

Component Cleaning Procedures

Cleaning the Folding Rollers

Step-by-step guides for cleaning the folding rollers.

Cleaning Key Components

Cleaning Paper Feed Rings

How to clean the paper feed rings to ensure smooth feeding.

Cleaning Paper Separator

Steps for cleaning the paper separator component.

Cleaning Feed Inlet Sensor

How to clean the paper feed inlet sensor for accurate detection.

Sensor Cleaning

Cleaning Paper Feed and Ejection Sensors

Instructions for cleaning sensors to ensure accurate operation.

Technical Specifications

Quick Start Operation Guide

Unit Preparation and Folding Operations

Initial preparation, powering on, stacking, and folding steps.

Duplo DF-920 Specifications

General IconGeneral
BrandDuplo
ModelDF-920
CategoryFolding Machines
LanguageEnglish

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