Duplo DSF-2000 Manuale utente
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Duplo DSF-2000
Sheet Feeder
Maintenance Manual
SHEET FEEDER
DSF-2000
MAINTENANCE MANUAL
99T-M12M0-0107-0
TABLE OF CONTENTS
CHAPTER 1 MECHANISM
1. Outline of Mechanism of This Machine...........1-2
2. Paper Feed Mechanism..................................1-5
3. Paper Feeder A...............................................1-9
4. Paper Feeder B...............................................1-13
5. Reversal Section.............................................1-15
6. Conveyance Bridge Section............................1-19
7. Upper Door Section ........................................1-20
8. Lower Door Section ........................................1-21
9. End Mark Detection Section ...........................1-22
10. Double-feed Detection Section .......................1-25
11. Adjusting the Tension of the Timing Belt ........1-26
12. Structure of Conveyance Rollers and
Conveyance Guides........................................1-28
13. Paper Feed Count of Paper Feeder A ............1-29
14. Maintenance ...................................................1-30
CHAPTER 2 ELECTRICAL
COMPONENTS
1. Block Diagram of Structure and Outline of
Each Block ......................................................2-2
2. Errors and Causes ..........................................2-9
3. Maintenance Menu .........................................2-12
4. Precautions on Replacing the MC Unit ...........2-15
5. Precautions on Replacing Fuses ....................2-16
6. LCD Map.........................................................2-17
7. Overall Schematic Diagram ............................2-27
8. Wiring Diagram ...............................................2-28
1-1
99T-M12M0-0107-0
CHAPTER 1
MECHANISM
1. Outline of Mechanism of This Machine...........1-2
1-1. Operations of Machine during Count
Processing Mode and When Using
End Mark (Count Mode) ........................1-2
1-2. Operations of Machine during Random
Processing Mode ...................................1-2
1-3. Positions of Main Parts ..........................1-3
2. Paper Feed Mechanism ..................................1-5
2-1. Outline of Paper Feed Mechanism ........1-5
2-2. Suction Conveyance Section.................1-6
2-3. Solenoid Valve.......................................1-7
2-4. Separator Air Box ..................................1-7
2-5. Separator ...............................................1-8
2-6. Paper Feed Conveyance .......................1-8
3. Paper Feeder A...............................................1-9
3-1. Detection of No-paper............................1-10
3-2. Side Guide A..........................................1-11
3-3.
Paper Feed Tray Up and Down Section ...
1-12
3-4. Greasing the Secondary Conveyance
Roller of the Paper Feed Section...........1-12
4. Paper Feeder B...............................................1-13
4-1. Detection of No-paper............................1-13
4-2.
Paper Feed Tray Up and Down Section ...
1-13
4-3. Greasing the Secondary Conveyance
Roller of the Paper Feed Section...........1-14
5. Reversal Section .............................................1-15
5-1. Mechanism ............................................1-16
5-2. Replacing the Clutch..............................1-17
5-3. Adjusting the Gate Solenoid and
Stopper ..................................................1-18
5-4. Reversal Counter...................................1-18
6. Conveyance Bridge Section............................1-19
6-1. Replacing the Paper Ejection Sensor
and Microswitch .....................................1-19
6-2. Adjusting the Magnet Catcher ...............1-19
6-3. Greasing the Secondary Conveyance
Roller .....................................................1-19
7. Upper Door Section ........................................1-20
7-1. Removing Procedure .............................1-20
7-2. Adjusting the Magnet Catcher ...............1-20
7-3. Greasing the Secondary Conveyance
Roller .....................................................1-20
8. Lower Door Section ........................................1-21
8-1. Removing Procedure .............................1-21
9. End Mark Detection Section ...........................1-22
9-1. Outline ...................................................1-22
9-2. Replacing the End Mark Sensor ............1-23
9-3. Adjusting the Light-emitting Volume of
the End Mark Sensor
(Maintenance Menu)..............................1-24
9-4. Cleaning.................................................1-24
10. Double-feed Detection Section .......................1-25
10-1. Adjusting the Light-emitting Volume in
Use of Thick Paper and Thin Paper
(Maintenance Menu)..............................1-25
11. Adjusting the Tension of the Timing Belt ........1-26
12. Structure of Conveyance Rollers and
Conveyance Guides........................................1-28
13. Paper Feed Count of Paper Feeder A ............1-29
14. Maintenance ...................................................1-30
1-2
99T-M12M0-0107-0
1. OUTLINE OF MECHANISM OF THIS MACHINE
1-1. Operations of Machine during Count Processing Mode and When Using End
Mark (Count Mode)
(1) Perform the required settings for count processing or using the end mark on the control panel.
(2) Memorize the characteristics of the paper in the machine by test feeding the paper.
(3) Press the start button to start operations.
(4) The number of sheets for one set is fed from the paper feeder A and sent to the downstream processing unit.
(At this time, it is possible to use the reversal mechanism to turn paper inside out when sending it to the
downstream processing unit.)
(5) When using the end mark, the machine will check that the last sheet of paper in the set from the paper feeder A
has an end mark on it. If no end mark, the machine will stop.
(6) Cover paper is fed from the paper feeder B, and the execute processing signal is sent to the downstream
processing unit.
(7) The paper for the next set is fed from the paper feeder A after the time required by the downstream processing
unit to perform operations.
(8) When the number of sets set has been processed, the machine will stop.
1-2. Operations of Machine during Random Processing Mode
(1) Perform the required settings for random processing on the control panel.
(2) Memorize the characteristics of the paper with the end mark in the machine by test feeding the paper.
(3) Press the start button to start operations.
(4) Paper is fed from the paper feeder A and sent to the downstream processing unit.
(5) When paper with the end mark is fed, cover paper will be fed from the paper feeder B, and the execute processing
signal will be sent to the downstream processing unit.
(6) The paper for the next set is fed from the paper feeder A after the time required by the downstream processing
unit to perform operations.
(7) The machine will stop when the paper feed tray A or B runs out of paper.
1-3
99T-M12M0-0107-0
1-3. Positions of Main Parts
Operating side
Reversal clutch 2
Remote board
Reversal clutch 1
Gate solenoid
Paper feed clutch
Frame F Control panel
Reversal counter
Power board
Paper feed clutch
1-4
99T-M12M0-0107-0
Non-operating side
Index sensor for end mark
Paper feed tray A up/down motor Frame B
Upper limit switch A
Upper door switch
Suction fan
Double-feed detection sensor
Suction solenoid
Separator fan
Conveyance motor
Paper ejection
sensor
Reversal sensor
(light-receiving side)
(Black cover)
Reversal sensor
(light-emitting side)
(Gray cover)
Suction fan
Main board
Separator fan
Suction solenoid
Lower door switch
Double-feed detection sensor
Plate
Upper limit switch B
Lower limit switch unit B
Lower limit
switch unit A
Paper feed tray B
up/down motor
1-5
99T-M12M0-0107-0
2. PAPER FEED MECHANISM
2-1. Outline of Paper Feed Mechanism
(1) Press the start button to operate the machine. With the paper feed tray’s up and down mechanism, the paper on
the paper feed tray rises up to the position detected by the level sensor.
(2) Then the paper feed tray goes down to a certain position and stops.
(3) The paper separator DC fan starts to separate the paper and have the paper surfaced.
(4) If the top surfaced sheet of paper is not at the position where the actuator is pressed, the paper feed tray rises up
to the position where the top surfaced sheet can be detected by the level sensor and stops.
(5) The suction DC fan starts operation and the top surfaced sheet of paper is sucked into the suction belt.
(6) The electromagnetic clutch attached to the end of the conveyance shaft starts to rotate the conveyance shaft and
at the same time the suction belt starts to feed the paper.
In case that, in addition to the topmost sheet of paper, the top second sheet is almost fed, the separator works to
keep the second sheet left at the right position so that only the topmost sheet of paper is fed.
Remark : The ON time of the electromagnetic clutch can be changed on the control panel. It is currently set as follows.
Setting of suction belt drive time (electromagnetic clutch ON time)
Setting
Value
Suction Belt Drive Time
(electromagnetic clutch
ON time)
Distance Moved by Suction Belt
(when connecting the
DBM-120 Sheet by Sheet)
Conveyance Speed 1350 mm/s
1
2
3
4
5
6
0.08 sec.
0.09 sec.
0.12 sec.
0.15 sec.
0.18 sec.
0.21 sec.
Approx. 54 mm (2.13")
Approx. 61 mm (2.40")
Approx. 81 mm (3.19")
Approx. 101 mm (3.98")
Approx. 122 mm (4.80")
Approx. 142 mm (5.59")
Distance Moved by Suction Belt
(when connecting the DBM-250 Sheet by
Sheet or DBM-400 Sheet by Sheet)
Conveyance Speed 1450 mm/s
Approx. 58 mm (2.28")
Approx. 65 mm (2.56")
Approx. 87 mm (3.43")
Approx. 109 mm (4.29")
Approx. 131 mm (5.16")
Approx. 152 mm (5.98")
Double-feed detection sensor
Separator air box
Conveyance shaft Suction box
Microswitch Level sensor
Actuator
Paper
Suction belt
Separator
(Detection of upper limit
position of paper feed tray)
Paper feed conveyance roller
1-6
99T-M12M0-0107-0
2-2. Suction Conveyance Section
The suction conveyance section consists of the
suction belt, suction box, conveyance shaft, and
electromagnetic clutch to rotate the conveyance
shaft.
The DC fan is the suction source to suck the paper.
When the DC fan starts to operate, the suction box is
in a suction state. Air is fed through the some square
holes on the suction box. When the suction box is in
the suction state, the paper is sucked into the suction
belt. The electromagnetic clutch attached to the end
of conveyance shaft starts to rotate the conveyance
shaft and at the same time the suction belt starts to
move.
At a fixed time after rotation of conveyance shaft, the
suction box is in the release state.
Suction belts
Frame B
Frame F
Electromagnetic clutch
Conveyance shaft
Suction box
DC fan
To remove the suction conveyance section, remove the connector of the bundled wire for no-paper detection,
bracket with DC fan, electromagnetic clutch, bearing, pass the conveyance shaft through the hole of the removed
bearing, and move it.
(When removing the suction conveyance section of the paper feeder A, remove the side guide A as well.)
Electromagnetic clutch, bracket, bearing
Frame F
Pass through hole of removed bearing
Remove Frame B
DC fan, bracket
Remove
1-7
99T-M12M0-0107-0
2-3. Solenoid Valve
The valve is used to switch the suction box to the
suction/release state. Use the DC solenoid to switch
the suction/release state.
A large square hole is on the bottom of the suction
box. The suction/release state is set by opening and
closing the hole with the valve head.
It is the release state (see Figure A) with the square
hole open. It is the suction state (see Figure B) with
the square hole closed.
As air is fed slightly through the suction belt with the
square hole open, the paper is not sucked.
Usually the suction box is in the release state. When
the electromagnetic clutch is connected, in other
words, when the paper is being fed, the box is in the
suction state.
Adjustments
When the DC solenoid is ON (see Figure B), the
valve head perfectly covers the square hole on the
suction box.
When the DC solenoid is ON (see Figure B) and the
valve head perfectly covers the square hole, move
the solenoid base up and down and fix it so that the
space L between the frame and plunger on the
solenoid is “0”.
Apply grease to the lever fulcrum, and contact
surface of the lever and valve head.
Figure A
Figure B
2-4. Separator Air Box
The separator air box is filled with air when the DC
fan starts to operate. Air is discharged out of three
ducts to separate the paper on the paper feed tray.
The shutter is used to adjust the size of the duct and
the volume of air to separate the paper.
The rack near the frame engages with the pinion on
the shaft end of the adjusting knob. Rotate the
adjusting knob to move the shutter.
Adjustments
The adjusting knob is attached to the pinion shaft with
the set screw.
Match the shutter position with the pointer of the
adjusting knob.
Fix the adjusting knob so that the pointer of the knob
is at “1”when moving the shutter in the direction of an
arrow to stop it.
Slots DC solenoid (plunger) DC solenoid (frame)
Frame
Space: L
1
2
3
4
6
7
5
Shutter
3 slots
Rack
Pointer
Adjusting knob
Frame
Paper separator DC fan
Separator air box
Ducts
Lever
Link
Bottom of suction box Valve head
DC solenoid
Solenoid base
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2
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