Konica 7920 Wiring Diagram ad231e
FrameMaker Ver.5.5(PC) AD-231 OPTION FOR 7915/7920
01.02.09
AD-231
SERVICE MANUAL
10794
FrameMaker Ver.5.5(PC) AD-231 OPTION FOR 7915/7920
01.02.09
CONTENTS
GENERAL,
MECHANICAL/ELECTRICAL
1. SPECIFICATIONS ...........................................................................................M-1
2. PARTS IDENTIFICATION ........................ ........................... ............................M-1
3. CROSS-SECTIONAL VIEW ............................................................................M-2
4. DRIVE SYSTEM ..............................................................................................M-3
5. ELECTRICAL COMPONENTS LAYOUT ........................................................M-3
6. MECHANICAL OPERATIONS .........................................................................M-4
6-1. Switchback Mechanism ...........................................................................M-4
(1) Switchback Operation ......................................................................M-4
(2) Paper Exit Roller Drive Coupling Mechanism . .................................M-4
(3) Switchback Motor Control ................................................................M-4
6-2. Transport and Duplex Paper Take-Up Mechanism .................................M-5
(1) Transport and Duplex Paper Take-Up Operation ............................ M-5
(2) Duplex Unit Transport Motor Contro l ............................. ..................M-5
6-3. 2-Sided Copying Method ......................................................................... M-6
(1) Operations in 2-sided copying with a single sheet
of paper resident in the system .......................................................M-6
(2) Operations in 2-sided copying with two sheets
of paper resident in the system .......................................................M-8
DIS/REASSEMBLY, ADJUSTMENT
1. DISASSEMBLY ...............................................................................................D-1
1-1. Maintenance Schedule ............................................................................D-1
1-2. Removal of the Duplex Unit ..................................................................... D-1
1-3. Cleaning of Duplex Unit Transport Roller 1 and 2 and Duplex Unit
Transport Roll 1 and 2 .............................................................................D-1
2. ADJUSTMENT .................................................................................................D-2
2-1. Changing the Cable Tension Strength (Replacement of the Spring) .......D-2
2-2. Reference Position Adjustment ............................... ........................... .....D-3
MISFEED DETECTION
1. MISFEED DETECTION .................................... ........................... ....................T- 1
1-1. Location of Misfeed Detecting Sensors ...................................................T-1
1-2. Misfeed Detection Timing .......... ........... ...... ...... ............. .... ............. ...... ...T-1
i
FrameMaker Ver.5.5(PC) AD-231 OPTION FOR 7915/7920
01.02.09
GENERAL,
MECHANICAL/ELECTRICAL
FrameMaker Ver.5.5(PC) AD-231 OPTION FOR 7915/7920
01.02.09
1. SPECIFICATIONS
Type : Switchback and Circulating Duplex Unit
Installation : Mounted on the right side door of copier
Type of Copy Paper : Plain paper
Paper Sizes : A5L to A3Wide or 5-1/2 × 8-1/2L to 11 × 17L
Paper Weight :
Registration : Center
Power Requirements : DC24 V ± 10 %, DC5.1 V ± 5% (supplied from copier)
Max. Power Consumption : 17 W
Dimensions : Width ... 139 mm or 5-1/2 in
Weight : 3.1 kg or 6-3/4 lbs.
Environmental Requirements : Same as copier
64 to 90 g/m
Depth ... 440 mm or 17-1/4 in
Height ... 365 mm or 14-1/4 in
2
or 17 to 24 lbs.
2. PARTS IDENTIFICATION
M-1
Duplex Unit Door
4657M001AA
FrameMaker Ver.5.5(PC) AD-231 OPTION FOR 7915/7920
01.02.09
3. CROSS-SECTIONAL VIEW
6
5
1
2
3
4
4657M002AA
1. Duplex Unit Transport Roll 2
2. Duplex Unit Transport Roller 2
3. Duplex Unit Transport Roll 3
4. Duplex Unit Transport Roller 3
5. Duplex Unit Transport Roll 1
6. Duplex Unit Transport Roller 1
M-2
FrameMaker Ver.5.5(PC) AD-231 OPTION FOR 7915/7920
01.02.09
4. DRIVE SYSTEM
Duplex Unit Transport
Drive Mechanism
Switchback Drive
Mechanism
4657M003AA
5. ELECTRICAL COMPONENTS LAYOUT
M1
PWB-A
PC1
Symbol Name Symbol Name
PWB-A
Duplex Control Board
M1
Switchback Motor
M2
Duplex Unit Transport Motor
PC1
Duplex Unit Transport Sensor 2
PI1
Duplex Unit Transport Sensor 1
(in PWB-A)
PI2
Duplex Unit Door Set Sensor (in PWB-A)
PI2
PI1
M2
4657M004AB
M-3
Loading...