Konica Minolta Copier 2223 User manual

OPTION
1. MAINBODY
PRODUCT SPECIFICATIONS .................................... 1-1
[1] Type ................................................................. 1-1
[2] Function ........................................................... 1-1
[3] Particulars of Machine...................................... 1-1
[4] Maintenance..................................................... 1-1
[5] Operating Environment .................................... 1-1
CENTER CROSS-SECTION....................................... 1-2
DRIVE SYSTEM SECTION......................................... 1-3
[1] Main Drive ........................................................ 1-3
[2] ADU Nip Roller Drive ....................................... 1-3
MAIN DRIVE SECTION............................................... 1-4
[1] Construction ..................................................... 1-4
[2] Mechanism....................................................... 1-4
[3] Disassembly and Assembly ............................. 1-5
[5] Paper Exit Gate Control ................................. 1-13
[6] Paper Feed Control........................................ 1-13
ADU NIP ROLLER DRIVE SECTION........................ 1-14
[1] Construction ................................................... 1-14
[2] Mechanism..................................................... 1-14
[3] Disassembly and Reassembly ....................... 1-16
[4] ADU Control ................................................... 1-21
LCT/PFU SECTION................................................... 1-23
[1] Construction ................................................... 1-23
[2] Mechanism..................................................... 1-23
[3] Disassembly and Reassembly ....................... 1-24
[4] LCT Lift Control .............................................. 1-28
2. DIAGRAMS
DB-307/107/607 ELECTRICAL PARTS LAYOUT
DRAWING ................................................................... 2-1
DB-307/107/607 CONNECTOR LAYOUT DRAWING. 2-3
DB-307/107/607 OVERALL WIRING DIAGRAM......... 2-5
DRIVE BOARD CIRCUIT DIAGRAM .......................... 2-6
DB-307/107 ADU FACE SIDE TIMING CHART
(A4, 2 sheets stacking) ............................................ 2-7
DB-307/107 ADU BACK SIDETIMING CHART
(A4, 2 sheets Re-feed)............................................. 2-8
CONTENTS

1-1
PRODUCT SPECIFICATIONS
[1] Type
Type: ADU None-stack type (paper conveyance/
changeover with nip rollers)
LCT Tray paper feed (front loading)
PFU Tray paper feed (front loading)
[2] Function
Paper size: ADU A3 to A5R
11×17 to 8.5×11R
LCT A4/A4R/B5/B5R/A5R
8.5×11/8.5×11R
PFU A4/A4R/B5/B5R/A5R
8.5×11/8.5×11R
Kind of paper: 60 g/m2to 90 g/m2fine quality paper
ADU capacity: 10 sheets max. (80g/m2)
Tray capacity: LCT 1000 sheets max. (80g/m2)
PFU 250 sheets max. (80g/m2)
[3] Particulars of Machine
Power requirements: DC24V/5V (supplied from the
main body)
Max. power consumption: 50 VA
Weight: Approx. 36 kg
Machine dimensions:
[4] Maintenance
Maintenance: Same as the main unit
Service life: Same as the main unit
[5] Operating Environment
Temperature: 10˚C to 33˚C
Humidity: 20% to 80% RH
These specifications are subject to change without notice.
(mm)
PRODUCT SPECIFICATIONS
565 520
470

1-2
CENTER CROSS-SECTION
ADU nip rollers
from main body to main body
ADU section
ADU stacker section
Changeover
conveyance section
LCT paper feed roller
Conveyance rollers
(Upper)
LCT tray
PFU paper
feed roller
PFU tray
Conveyance rollers
(Middle)
Conveyance rollers
(Lower)
DB-307 CENTER CROSS-SECTION

1-3
ADU changeover gate
Nip roller elevating cam
ADU changeover
solenoid (SD101)
Changeover/
clutch lever
ADU drive motor (M101)
Nip rollers (16)
Changeover conveyance roller 1 Drive gear
of main body
(ADU Conveyance Drive)
Drive gear of main body
(LCT/PFU Conveyance Drive)
Conveyance roller (Lower)
PFU paper
feed roller
Conveyance roller
(Middle)
Conveyance roller
(Upper)
LCT paper feed roller
Changeover
conveyance roller 3
Changeover
conveyance roller 2
[1] Main Drive
[2] ADU Nip Roller Drive
DRIVE SYSTEM SECTION
DB-307 DRIVE SYSTEM SECTION

1-4
Changeover conveyance roller 1 Drive gear
of main body
(ADU Conveyance Drive)
Drive gear of main body
(LCT/PFU Conveyance Drive)
Conveyance roller (Lower)
PFU paper
feed roller
Conveyance roller
(Middle)
Conveyance roller
(Upper)
LCT paper feed roller
Changeover
conveyance roller 3
Changeover
conveyance roller 2
[1] Construction
MAIN DRIVE SECTION
[2] Mechanism
Mechanism Method
LCT paper feed drive Gear driven by main motor/
gear drive
PFU paper feed drive Gear driven by main motor/
gear drive
Paper route change Paper exit change gate
ADU changeover roller drive Gear driven by Main motor/
gear drive
∗1. Paper route change
The route of a paper from the fuser section is changed by
the paper exit change cover gate: one path is to cause the
paper to come out of the exit, and the other is to cause the
paper to go to the ADU reversal section.
In case of one-sided copying mode, paper goes to the exit,
and in case of two-sided copying mode, it goes to the ADU
reversal section.
Theexit paperchangeover gateis controlledby turningon/
off the ADU gate solenoid (SD13).
MAIN DRIVE SECTION
∗1
Paper exit change gate ADU gate solenoid (SD103)
To ADU Reversal Section
Paper Exit

1-5
PapersfedtotheADUareheldbytheniprollersandstored
in the stack section up to 10 sheets.
ADU
nip rollers
ADU
stack section
The paper in the stack section is fed to the changeover
conveyancesectionby meansofreverse rotationofthe nip
roller. The paper is entered into the normal conveyance
route in the main body, then copied on the back side and
finally delivered to the exit tray.
ADU stack section
ADU nip rollers
Changeover
conveyance
section
MAIN DRIVE SECTION
[3] Disassembly and Assembly
Caution: Disconnectthepowercableplugfromthewall
outlet.
1. Removing/reinstalling the ADU Conveyance Unit
(Lower)
a. Procedure
(1) Open the upper main body.
(2) Remove the four set screws, then remove the exit tray
with the mounting plate.
CAUTION:If the sorter is already installed, remove the sorter
first from the main body.
I
(3) Remove the set screw, then remove the fixing front
cover.
Set screwFixing Front cover
Set screws
Exit tray Exit tray
mounting plate

1-6
Set screws
ADU Guide unit
(4) Remove the four set screws, then remove the ADU
guide unit.
(5) Remove the set screw, then remove the ADU Convey-
ance unit (Lower).
Set screw
ADU conveyance
unit (Lower)
(6) Reinstall the guide in the reverse order of removal, but
the following should be carefully executed.
Note: 1. MakesuretheholesintheADUgatesolenoid(SD103)
are aligned with the two locating pins.
Pins/holes
ADU gate solenoid (SD103)
ADU Conveyance Unit (Lower)
Holes Pins
2. Align the two pins on the back of the ADU Convey-
ance unit (Lower) with the holes in the main body.
MAIN DRIVE SECTION

1-7
MAIN DRIVE SECTION
2. Removing/reinstallingtheADUconveyanceguide
(Upper)
a. Procedure
(1) Open the upper main body.
(2) Remove the four set screws, then remove the Exit disk
mounting plate and the exit tray.
CAUTION: Machinewiththesorter:
Releasethesorterfromthemainbody .
Set screws
Exit tray Exit tray
mounting plate
(3) Remove the four set screws, then remove the ADU
guide unit.
Set screws
ADU guide unit
(4) Remove the main body tray, two set screws, and the
lower main body cover (left).
Set screws
Lower main body cover (left)
(5) Remove the set screw, and the left rear cover, sliding it
to downward to clear the protruding part.
(6) Remove the two set screws, then remove the ADU
conveyance guide cover.
ADU conveyance guide cover
Set screws
Set screw
Left rear cover

1-8
MAIN DRIVE SECTION
(7) OpentheADUleftdoor,andremovethefoursetscrews,
then remove the reinforcement plate.
Set screws
Reinforcement plate
ADU left door
(8) Remove the four set screws, then remove the ADU
conveyance guide (Upper) toward the front.
CAUTION:When removing the ADU conveyance guide (Up-
per), remove all outside set screws.
ADU conveyance guide (Upper)
Set screws (Outside)
(9) Disconnect the relay connector (CN118) for the ADU
conveyance 1 PS (PS101), then remove the ADU con-
veyance guide (Upper).
(10)Reinstall the ADU conveyance guide (upper) in the
reverse order of removal.
3. Removing/reinstalling the ADU changeover con-
veyance guides (1 to 4)
a. Procedure
(1) Remove the main body from the DB-307.
(2) Open the ADU left door.
(3) Removethe two set screws, thenremove the reinforce-
ment plate.
ADU left door
Set screws
Reinforcement plate
ADU conveyance 1 PS (PS101)
Relay connector (CN118)

1-9
(4) Disconnecttheconnector(CN235)from theADU paper
exit PS (PS102).
(5) Remove the harnesses for LCT solenoid (SD104) and
ADUleftdoorinterlockswitch(MS102)fromtheharness
clamps.
Connector (CN235)
Wire harnesses for SD104 and MS102
ADU paper exit PS (PS102)
(6) Disconnecttheconnector(CN236)form theADU paper
feed PS (PS103), and the bundle of wires from the
bundle tie.
(7) Remove the set screw and one plain washer, then
remove the changeover conveyance guide 1.
Set screw
Changeover conveyance guide 1
Plain washer ADU paper feed PS (PS103)
Connector (CN236)
Set screws
Changeover conveyance guide 2
(8) Remove the four set screws, then remove the change-
over conveyance guide 2.
(9) Remove the four set screws, then remove the DB rear
cover.
DB rear cover
Set screws
MAIN DRIVE SECTION