General Precautions for Installation/Servicing/Maintenance for the MD-0101
The installation and service should be done by a qualified service technician.
1. When installing the MD-0101 to the Plain Paper Copier , be sure to follo w the instructions described in
the “Unpacking/Set-Up Procedure for the MD-0101” booklet which comes with each unit of the
MD-0101.
2. The MD-0101 should be installed by an authorized/qualified person.
3. Before starting installation, servicing or maintenance work, be sure to turn off and unplug the copier
first.
4. When servcing or maintaining the MD-0101, be careful about the rotating or operation sections such
as gear, pulleys, sprockets , cams, belts , etc.
5. When parts are disassembled, reassembly is basically the rev erse of disassembly unless otherwise
noted in this manual or other related materials. Be careful not to reassemble small parts such as
screws, washers, pins , E-rings, toothed washers to the wrong places .
6. Basically, the machine should not be operated with an y parts removed or disassembled.
7. Delicate parts for preventing safety hazard problems (such as breakers, thermofuses, fuses, door
switches, sensors, etc. if any) should be handled/installed/adjusted correctly.
8. Use suitable measuring instruments and tools.
9. During servicing or maintenance work, be sure to check the serial No. plate and other cautionary
labels (if any) to see if they are clean and firmly fixed. If not, take appropriate actions.
10. The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband,
because the ICs on it may be damaged due to static electricity. Before using the wrist band, pull out
the power cord plug of the copier and make sure that there is no uninsulated charged objects in the
vicinity.
11. For the recovery and disposal of used MD-0101, consumable par ts and packing materials, it is
recommended that the relevant local regulations/rules should be f ollow ed.
12. After completing installation, servicing and maintenance of the MD-0101, return the MD-0101 to its
original state, and check operation.
Copyright 2000
TOSHIB A TEC CORPORATION
CONTENTS
1. SPECIFICATIONS....................................................................................................... 1-1
2. OUTLINE..................................................................................................................... 2-1
2.1 Names of Various Components........................................................................................ 2-1
2.2 Layout of Electrical Parts ................................................................................................. 2-2
2.3 Harness Connection Diagram .......................................................................................... 2-3
2.4 Board Assembly ............................................................................................................... 2-4
3. OPERATIONAL DESCRIPTION ................................................................................. 3-1
3.1 General Operation............................................................................................................ 3-1
3.2 Block Diagram.................................................................................................................. 3-1
3.3 Detection of Abnormal Status .......................................................................................... 3-2
3.3.1 Cover open/close detection................................................................................... 3-2
3.3.2 Paper jam detection .............................................................................................. 3-2
3.4 Flow Chart........................................................................................................................ 3-3
4. MECHANICAL DESCRIPTION................................................................................... 4- 1
4.1 Paper Feed System.......................................................................................................... 4-1
4.2 Drive System.................................................................................................................... 4-2
5. CIRCUIT DESCRIPTION ............................................................................................ 5-1
5.1 PWA Block Diagram......................................................................................................... 5-1
5.2 Meaning of Signals........................................................................................................... 5-2
5.3 Timing Chart .................................................................................................................... 5-3
6. DISASSEMBLY AND REPLACEMENT...................................................................... 6- 1
October 2000 © T OSHIBA TEC 1 MD-0101 CONTENTS
1. SPECIFICATIONS
Function : Stackless unit for duplex printing
Paper : Size A3 to A5-R/LD to ST-R
: Thickness Normal paper 64 to 80g/m2 (17 to 21 lbs)
Transpor t speed : 92 mm/sec. (DP1600 series)
: 124 mm/sec. (DP2000/2500 series)
Dimensions : 101 (W) x 488 (D) x 345 (H) mm
Weight : Approx. 4.3 kg
Power supply : 5VDC, 24VDC (Supplied from copier)
October 2000 © T OSHIBA TEC 1 - 1 MD-0101 SPECIFICATION
2. OUTLINE
2.1 Names of Various Components
Release lever
ADU release hook F
ADU 02-01-01
ADU paper guide assembly
Connection cable
ADU release hook R
ADU 02-01-02
October 2000 © T OSHIBA TEC 2 - 1 MD-0101 OUTLINE
2.2 Layout of Electrical Parts
SW1
SEN2
SEN1
Symbols and functions of various devices
Symbol
SEN1
FED1-SEN
Name
ADU paper jam sensor (Lower)
SEN2
FED2-SEN
ADU paper jam sensor (Upper)
SW1
ADUCOV-SW
ADU cover open switch
M1
FED1-MOT
ADU motor (Lower)
M2
FED2-MOT
M2
ADU (PWA-F-ADU)
M1
ADU 02-02-01
Function
Detects the transport of paper (Lower).
Detects the transport of paper (Upper).
Detection of cover open/close status during jam
processing, etc.
Drives the roller to transport paper (Lower).
Drives the roller to transport paper (Upper).
ADU motor (Upper)
ADU
PWA-F-ADU
ADU PWA
MD-0101 OUTLINE 2 - 2 October 2000 © T OSHIBA TEC
PWA which relays the sensor signals and drives
the motor.
2.3 Harness Connection Diagram
)
Lower
(
ADU paper jam sensor
321
CN312
123
DPF
VCC
GND
CN213
)
Upper
(
ADU paper jam sensor
321
CN328
123
DPF
VCC
GND
CN214
CN215
)
Lower
(
ADU motor
12345
12345
+24V
FDMA
FDMB
FDMC
ADU PWA
FDMD
12345
1
+24V
CN216
)
Upper
(
ADU motor
345
2
EXMA
EXMB
EXMC
EXMD
2
CN311
1
CVSW
CN217
ADU cover open switch
1
2
GND
ADU
1514131211
123456789
CN323
1514131211
123456789
2
FDM-B
FDM-D 1
FDM-C 3
CN203 CN211
987654312
10
987654312
10
4
6
VDD 7
FDM-A
ADUFL
CRT-DOWNA 5
1011121315
10
8
10ADUFU
GND
ADCNT 9
11
ADUCOVSW 11
12
12EXM-A
EXM-C 13
14
14EXM-B
PFC PWA
15EXM-D
CN324
CN204 CN212
432
123
432
123
2
GND
GND 1
1
4
1
4
4
+24V
+24V 3
ADU 02-03-01
October 2000 © T OSHIBA TEC 2 - 3 MD-0101 OUTLINE
2.4 Board Assembly
6
PWB-F-ADU-520-3 41316208000
CN215
>
PF-WP
JP1
IC1
1
C4
C1
R1
1
3
CN213
<
STK672-210
R2
R4
R3
R5
R9
CN212
41
JP2
C7
R6
R7
R8
1
JP6
JP5
PD
2
CN217
12
C2
JP7
15
31
1
6
CN214
JP3
C5
112
JP10
JP8
C6
JP9
C3
JP11
RV
CN216
JP4
R10
R11
R12
R13
1
STK672-210
1
CN211
IC2
C8
R14
R15
R16
R17
ADU 02-04-01
MD-0101 OUTLINE 2 - 4 October 2000 © T OSHIBA TEC