Service manual

ManualsBrandsDuplo ManualsBusiness equipmentDF-755

CONTENTS

DUPLO DF-755 86V-M12D0-0

Chapter 3

DISASSEMBLY/ASSEMBLY

1 EXTERNAL COVER/CONTROL

SECTION ....................................... 3-2

1.1 External Cover Section ....................... 3-2

1.1.1 External cover .................................................3-2

1.2 Control Panel Section ......................... 3-3

1.2.1 Removing the control panel unit ....................3-3

1.2.2 Removing the panel base ................................3-3

1.3 Board .................................................. 3-3

1.3.1 Removing the MC unit (PCB1) .......................3-3

1.4 Power Supply/Drive/Others ................ 3-4

1.4.1 Removing the cover for electric

components ......................................................3-4

1.4.2 Removing the AC motor drive unit (PCB3) ...3-4

1.4.3 Removing the MB belt ....................................3-5

1.4.4 Removing the AC motor (M1) .........................

3-5

1.4.5 Removing the solenoid ....................................

3-6

1.4.6 Removing the tension spring ..........................

3-7

1.4.7 Removing the paper feed clutch .....................

3-7

1.4.8 Removing the top cover microswitch

(SW1) ................................................................3-8

1.4.9 Removing the

fuse (F1) ...................................3-8

2 PAPER FEED SECTION ............... 3-9

2.1 Paper Feed Table Section .................. 3-9

2.1.1 Removing the paper feed shaft unit ...............3-9

2.1.2 Removing the paper feed rings .......................

3-9

2.1.3 Removing the paper separator plate ............

3-10

2.1.4 Removing the paper sensor (PS1) ................3-10

3 FOLDING SECTION .................... 3-11

3.1 Folding Roller Section ........................3-11

3.1.1 Removing the P roll cover ............................. 3-11

3.1.2 Removing the

idler roller .............................. 3-11

3.1.3 Removing the folding roller ..........................

3-12

3.2 Folding Plate Section ........................ 3-15

3.2.1 Removing the half nut of the ﬁrst

folding plate ...................................................3-15

3.2.2 Removing the half nut of the second

folding plate ...................................................3-16

3.2.3 Removing the ﬁrst folding plate micro

switch (SW2) ..................................................3-18

3.2.4 Removing the second folding plate micro

switch (SW3) ..................................................3-18

4 PAPER EJECTION SECTION ..... 3-19

4.1 Stacker Section ................................. 3-19

4.1.1 Removing the stacker roller .........................3-19

4.1.2 Removing the ejection belt ............................

3-19

4.2 Ejection Gate Sensor ........................ 3-21

4.2.1 Removing the Ejection Gate Sensor

(PS2e, PS2r) ...................................................3-21

Chapter 4

MAINTENANCE/INSPECTION

1 LIST OF MAINTENANCE

TOOLS ...........................................

4-2

1.1 General Tools ...................................... 4-2

1.2 Special Tools .......................................

4-2

2 PRODUCT LIFESPAN/PARTS

LIFESPAN ..................................... 4-3

2.1 Product Lifespan ................................. 4-3

2.2 Parts Lifespan .....................................

4-3

2.2.1 Recommended spare parts A

(Consumables) .................................................4-3

2.2.2 Recommended spare parts B

(Function parts) ...............................................4-3

2.2.3 Recommended spare parts C (Drive parts) ....

4-3

2.2.4 Recommended spare parts D

(Semi-durable parts) .......................................4-3

3 PERIODIC MAINTENANCE .......... 4-4

3.1 Basic Maintenance ............................. 4-4

3.2 Cleaning ..............................................

4-4

3.3 Oiling ...................................................

4-4

Chapter 5

STANDARDS/ADJUSTMENTS

1 PAPER FEED SECTION ............... 5-2

1.1 Adjusting the Paper Feed Table .......... 5-2

1.2 Adjusting the Paper Feed Pressure .... 5-3

1.3 Checking the Paper Feed

Gear and

Back Lash ........................................... 5-4

1.4 Adjusting Solenoid ..............................

5-4

1.5 Checking the Backlash of the Stacker

Gear and Idler Gear ............................ 5-6

1.6 Checking the Position of the Motor

Pulley .................................................. 5-7

1.7 Adjusting the MB belt Tension ............

5-8

1.8 Adjusting the Ejection Belt Tension .....

5-9

1.9 Adjusting the Ejection Guide

Stopper ............................................... 5-9

2 FOLDING SECTION .................... 5-10

2.1 Checking and Adjusting Press

Force ................................................. 5-10