Duplo DF-755 Folder Service Manual


Accurate, clear and concise text, combined with detailed illustrations, lists of error code, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your copier, printer or scanner.
Present service manual Duplo DF-755 Folder contain clear instructions and procedures on how to fix the problems occurring in your equipment.
The information contained in this repair manual is necessary for the repair, but also prevention, resulting in a longer life of your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
To see what contain, please read table of contents:

1. OUTLINE OF THIS MANUAL
1.1 Components of This Manual
1.2 Electrical Parts
2. SAFETY PRECAUTIONS
2.1 Power Supply
2.2 Operating
2.3 Maintenance/Others
2.4 WARNING / CAUTION Labels
3. ENVIRONMENT CONSIDERATION
3.1 Recovery of Products
3.2 Recovery of Consumables/Parts

Chapter 1
INTRODUCTION
1. FEATURES
2. SPECIFICATIONS
2.1 Type and Method
2.2 Performance and Functions
2.2.1 Processing performance
2.2.2 Functions
2.3 Paper
2.4 Others
2.4.1 Power supply/dimensions/mass (weight)
2.4.2 Error detection functions
3. NAMES OF PARTS
3.1 External Parts
3.2 Under the Top Cover and Paper Feed Table on the operator’s side
4. NAME/FUNCTION OF CONTROL PANEL
4.1 CONTROL PANEL
5. USER MENU
5.1 List
5.2 Paper Feed Adjustments
5.2.1 Correcting folding misalignment along sides of paper
5.2.2 Correcting folding misalignment along vertical length of paper
5.3 Paper Ejection Adjustments
5.3.1 Changing Stacker Rollers Position
5.3.2 Changing Stacker Rollers Height
6. USER MAINTENANCE
6.1 List of Maintenance Items
6.2 Cleaning by User
6.2.1 Cleaning Rubber Rolls and Paper Feed Rings
6.2.2 Cleaning the Paper Separator
6.2.3 Cleaning the Paper Sensor
6.2.4 Cleaning the Paper Ejection Belts
6.3 Replacement by User

Chapter 2
OPERATIONS
1. OUTLINE
1.1 Function Configuration
1.2 Block Diagram of Structure
1.3 Basic Operations
1.3.1 Operations at power ON
1.3.2 Operations
1.3.3 Operation during processing
1.3.4 Stopping operations when problems occur
2. EXTERNAL COVER/CONTROL SECTION
2.1 Power Supply
2.1.1 Outline
2.1.2 Safety function
2.2 Main Motor Control
2.2.1 Outline
2.2.2 Operations
2.3 Counter
2.3.1 Outline
2.3.2 Operations
3. PAPER FEED SECTION/CONVEYANCE SECTION
3.1 Outline
3.1.1 Configuration
3.1.2 Paper feed pressure adjustment knob
3.1.3 Paper feed table setting operations
3.1.4 Conveyance section operations
4. FOLDING SECTION
4.1 Outline
4.1.1 Configuration
4.1.2 Folding operations
4.2 Folding Roller Section
4.2.1 Configuration
5. PAPER EJECTION SECTION
5.1 Outline
5.1.1 Configuration
5.1.2 Paper ejection operations
5.2 Ejection belt section
5.2.1 Configuration
5.3 Stacker roller section
5.3.1 Configuration

Chapter 3
DISASSEMBLY/ASSEMBLY
1. EXTERNAL COVER/CONTROL SECTION
1.1 External Cover Section
1.1.1 External cover
1.2 Control Panel Section
1.2.1 Removing the control panel unit
1.2.2 Removing the panel base
1.3 Board
1.3.1 Removing the MC unit (PCB1)
1.4 Power Supply/Drive/Others
1.4.1 Removing the cover for electric components
1.4.2 Removing the AC motor drive unit (PCB3)
1.4.3 Removing the MB belt
1.4.4 Removing the AC motor (M1)
1.4.5 Removing the solenoid
1.4.6 Removing the tension spring
1.4.7 Removing the paper feed clutch
1.4.8 Removing the top cover microswitch (SW1)
1.4.9 Removing the fuse (F1)
2. PAPER FEED SECTION
2.1 Paper Feed Table Section
2.1.1 Removing the paper feed shaft unit
2.1.2 Removing the paper feed rings
2.1.3 Removing the paper separator plate
2.1.4 Removing the paper sensor (PS1)
3. FOLDING SECTION
3.1 Folding Roller Section
3.1.1 Removing the P roll cover
3.1.2 Removing the idler roller
3.1.3 Removing the folding roller
3.2 Folding Plate Section
3.2.1 Removing the half nut of the first folding plate
3.2.2 Removing the half nut of the second folding plate
3.2.3 Removing the first folding plate micro switch (SW2)
3.2.4 Removing the second folding plate micro switch (SW3)
4. PAPER EJECTION SECTION
4.1 Stacker Section
4.1.1 Removing the stacker roller
4.1.2 Removing the ejection belt
4.2 Ejection Gate Sensor
4.2.1 Removing the Ejection Gate Sensor (PS2e, PS2r)

Chapter 4
MAINTENANCE/INSPECTION
1. LIST OF MAINTENANCE TOOLS
1.1 General Tools
1.2 Special Tools
2. PRODUCT LIFESPAN/PARTS LIFESPAN
2.1 Product Lifespan
2.2 Parts Lifespan
2.2.1 Recommended spare parts A (Consumables)
2.2.2 Recommended spare parts B (Function parts)
2.2.3 Recommended spare parts C (Drive parts)
2.2.4 Recommended spare parts D (Semi-durable parts)
3. PERIODIC MAINTENANCE
3.1 Basic Maintenance
3.2 Cleaning
3.3 Oiling

Chapter 5
STANDARDS/ADJUSTMENTS
1. PAPER FEED SECTION
1.1 Adjusting the Paper Feed Table
1.2 Adjusting the Paper Feed Pressure
1.3 Checking the Paper Feed Gear and Back Lash
1.4 Adjusting Solenoid
1.5 Checking the Backlash of the Stacker Gear and Idler Gear
1.6 Checking the Position of the Motor Pulley
1.7 Adjusting the MB belt Tension
1.8 Adjusting the Ejection Belt Tension
1.9 Adjusting the Ejection Guide Stopper
2. FOLDING SECTION
2.1 Checking and Adjusting Press Force
2.2 Adjusting the Folding Plate
2.2.1 Adjusting the height of the folding stopper
2.2.2 Attaching the rough adjustment knob
2.2.3 Adjusting the fine adjustment knob
2.2.4 Adjusting clearance around the switching shaft
2.2.5 Adjusting the parallelity of the folding stopper
2.3 Adjusting the Bearing Support Lever
2.3.1 Adjusting the bearing support lever after replacing the bearing
2.3.2 Adjusting the clearance between the bearing support and bearing support lever
3. EXTERNAL COVER SECTION
3.1 Adjusting the interlock switch position

Chapter 6
MAINTENANCE MODE
1. OUTLINE
2. MAINTENANCE MODE OPERATIONS
2.1 Entering the Maintenance Mode
2.2 Exiting the Maintenance Mode
3. MENUS AND FUNCTIONS

Chapter 7
TROUBLESHOOTING
1. OUTLINE
2. TROUBLESHOOTING BY PHENOMENON
2.1 Paper Feed Problem
2.1.1 Mis-feed
2.1.2 Double-feed
2.1.3 Continuous-feed
2.1.4 Skew-feed
2.1.5 When the second paper is not fed after the first paper is discharged
2.2 Folding Problem
2.2.1 Folding misalignment along vertical length of paper
2.2.2 Folding misalignment along sides of paper
2.2.3 When paper is not folded at the normal position
2.3 Discharging Problem
2.3.1 When paper is not discharged
3. TROUBLESHOOTING BY MESSAGE DISPLAYED
4. TROUBLESHOOTING FOR OPERATION FAILURES
4.1 Power
4.1.1 Power does not turn on
4.2 Operations
4.2.1 Nothing is displayed on the control panel
4.2.2 Button operations are disabled on the control panel

APPENDIX
1. LIST OF DISPLAYED MESSAGES
1.1 No Paper
1.2 NO PAPER and the number of folded paper blinks alternately
1.3 Cover Open
1.4 Paper Error
1.5 Folding Plate Set Error
1.6 Others
2. LAYOUT OF ELECTRICAL PARTS
2.1 Front of Unit
2.2 Back of Unit
2.3 Inside Unit
2.4 Paper Feed Section
2.5 Folding Plate Section
3. LAYOUT OF BOARDS
3.1 MC Unit
3.2 Control Panel
3.3 AC Motor Drive Unit
4. SCHEMATIC DIAGRAMS