Toshiba Scanner MR 3018 User Manual

SERVICE MANUAL  
REVERSING AUTOMATIC DOCUMENT FEEDER  
MR-3018  
File No. SME05000600  
R05032183100-TTEC  
Ver00_2005-06  
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General Precautions for Installation/Servicing/Maintenance  
for the MR-3018  
The installation and service should be done by a qualified service technician.  
1) When installing the MR-3018 to the Equipment, be sure to follow the instructions described in the  
“Unpacking/Set-Up Procedure for the MR-3018” booklet which comes with each unit of the MR-  
3018.  
2) The MR-3018 should be installed by an authorized/qualified person.  
3) Before starting installation, servicing or maintenance work, be sure to turn OFF and unplug the  
equipment first.  
4) When servicing or maintaining the MR-3018, be careful about the rotating or operation sections  
such as gears, pulleys, sprockets, cams, belts, etc.  
5) When parts are disassembled, reassembly is basically the reverse 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 any parts removed or disassembled.  
7) Delicate parts for preventing safety hazard problems (such as 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 equipment and make sure that there is no uninsulated charged objects in  
the vicinity.  
11)For the recovery and disposal of used MR-3018, consumable parts and packing materials, follow the  
relevant local regulations/rules should be followed.  
12)After completing installation, servicing and maintenance of the MR-3018, return the MR-3018 to its  
original state, and check operation.  
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CONTENTS  
June 2005 © TOSHIBA TEC  
MR-3018 CONTENTS  
1
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1. Specification  
1
Item  
Contents  
Remarks  
2
Maximum number of originals Up to 100 sheets or 16 mm in height.  
on the original feeding tray  
35 - 80 g/m (9.3 - 21.3 lb. Bond)  
Acceptable paper size  
A5-R, A4, A4-R, B5, B5-R, B4, A3, FOLIO,  
ST-R, LT, LT-R, LG, LD, COMPUTER  
2
Acceptable paper weight  
1-sided: 35 - 157 g/m  
(9.3 lb. Bond - 58 lb. Cover)  
2
2-sided: 50 - 157 g/m  
(13.3 lb. Bond - 58 lb. Cover)  
W600 x D523 x H135 (mm)  
12.5 kg  
Dimensions  
Excluding hinges and original tray  
Supplied from the equipment  
Weight  
Power consumption  
Power requirements  
Co-packed items  
Approx. 49.5 W  
DC5 V, DC24 V  
Unpacking Instruction (1 set)  
Charts (A4/LT: 1 sheet each)  
Mounting screws (6 pcs)  
Positioning pins (2 pcs)  
Washer (1 pc)  
June 2005 © TOSHIBA TEC  
MR-3018 Specification  
1 - 1  
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MR-3018 Specification  
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1 - 2  
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2. GENERAL DESCRIPTION  
2.1 Main Components  
Original tray section  
Drive/Control section  
2
Original exit tray section  
Feeding/Transporting section  
Fig.2-1  
Location  
Components  
Feeding/Transporting  
section  
Pickup roller  
Feed roller  
Separation roller  
Registration roller  
Intermediate transfer roller  
Pre-reading roller  
Platen roller  
Original empty sensor (S3)  
Original length detection sensor (S4)  
Original registration sensor (S5)  
Original width detection sensor-1 (S6)  
Original width detection sensor-2 (S7)  
Original intermediate transport sensor(S8)  
Read sensor (S9)  
Post-reading roller  
Exit/reverse roller  
Original exit/reverse sensor (S10)  
Jam access cover sensor (S11)  
Reverse registration roller  
Original tray section  
Original width guide  
Original tray  
Original tray sensor (S1)  
Original tray width sensor (S2)  
Original reverse tray  
Original exit tray section Original exit tray  
Drive/Control section  
Original feed motor (M1)  
Read motor (M2)  
Original exit/reverse motor (M3)  
Fan motor (M4)  
Original pickup solenoid (SOL1)  
Gate solenoid (SOL2)  
RADF opening/closing sensor (S12)  
Jam access cover opening/closing switch (SW1)  
RADF control PC board (ADF)  
June 2005 © TOSHIBA TEC  
MR-3018 GENERAL DESCRIPTION  
2 - 1  
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2.2 Sectional View  
TRY3  
TRY1  
R4  
R3  
R1  
TRY2  
R9  
R2  
R5  
R7 R8 FLP1  
R6  
R10  
FLP2  
Fig.2-2  
TRY1 Original tray  
R4  
R5  
R6  
R7  
R8  
R9  
R10  
Registration roller  
TRY2 Original reverse tray  
TRY3 Original exit tray  
FLP1 Exit gate  
Intermediate transfer roller  
Pre-reading roller  
Platen roller  
FLP2 Reverse flapper  
Post-reading roller  
Reverse registration roller  
Exit/reverse roller  
R1  
R2  
R3  
Pickup roller  
Feed roller  
Separation roller  
MR-3018 GENERAL DESCRIPTION  
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2.3 Electric Parts Layout  
ADF  
SOL2  
SOL1  
M1  
M3  
M4  
M2  
2
S1  
S12  
S2  
S3  
S11  
S5  
S6  
S7  
SW1  
S9  
S8  
S4  
S10  
Fig.2-3  
June 2005 © TOSHIBA TEC  
MR-3018 GENERAL DESCRIPTION  
2 - 3  
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2.4 Symbols and Functions of Various Components  
1) Motors  
Symbol  
Name  
Original feed motor  
Read motor  
Function  
M1  
Drives the original feed roller, pickup roller and registration roller.  
M2  
Transports originals by driving the intermediate transport roller, front  
read roller, platen roller, rear read roller and reverse registration roller.  
M3  
M4  
Original exit/reverse motor  
Fan motor  
Drives the original exit/reverse roller.  
Cools off the ADF drive section and ADF board.  
2) Sensors and Switches  
Symbol  
Name  
Function  
S1  
Original tray sensor  
Original tray width sensor  
Original empty sensor  
Detects the length of the original set on the original tray.  
Detects the width of the original set on the original tray.  
Detects the original set on the original tray.  
Detects the length of the original.  
S2  
S3  
S4  
Original length detection  
sensor  
S5  
S6  
Original registration sensor  
Detects transport of the original at the registration roller section.  
Original width detection sen- Detects the width of the original.  
sor-1  
S7  
S8  
Original width detection sen- Detects the width of the original.  
sor-2  
Original intermediate trans-  
port sensor  
Detects the original transported to the Pre-scanning section.  
S9  
Read sensor  
Detects the leading edge of the original at the original scanning section.  
S10  
Original exit/reverse sensor  
Detects the exit (transit) of an original. Also detects the stop reference  
position for an original when in reverse.  
S11  
S12  
Jam access cover sensor  
Detects opening/closing of the Jam access cover.  
Detects opening/closing of the RADF.  
RADF opening/closing sen-  
sor  
SW1  
Jam access cover opening/  
closing switch  
Switches between cutoff and supply state of the 24 V power by open-  
ing/closing of the jam access cover.  
3) Solenoid  
Symbol  
Name  
Function  
SOL1 Original pickup solenoid  
SOL2 Gate solenoid  
Drives up and down the original pickup roller.  
Drives the reverse flapper. (Switches the flapper to the reverse side  
when turned to ON.)  
4) PC board  
Symbol  
Name  
Function  
ADF  
RADF control PC board  
(ADF board)  
Controls the RADF.  
MR-3018 GENERAL DESCRIPTION  
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2.5 Diagram of Signal Blocks  
Equipment  
RADF  
RxD  
TxD  
REQ  
Driver  
Driver  
Driver  
Driver  
Original feed motor (M1)  
Read motor (M2)  
Original exit/reverse motor (M3)  
Fan motor (M4)  
2
ACK  
DF-REQ  
DF-ACK  
Driver  
Driver  
Original pickup solenoid (SOL1)  
Gate solenoid (SOL2)  
SCAN-ST  
CNT  
Original tray sensor (S1)  
Original tray width sensor (S2)  
Original empty sensor (S3)  
Original length detection sensor (S4)  
CPU  
Original registration sensor (S5)  
DC 24V  
DC 5V  
Original width detection sensor-1 (S6)  
Original width detection sensor-2 (S7)  
Original intermediate transport sensor (S8)  
Read sensor (S9)  
Original exit/reverse sensor (S10)  
Jam access cover sensor (S11)  
RADF opening/closing sensor (S12)  
Reset IC  
Downlad jig  
Jam access cover opening/closing switch (SW1)  
Fig.2-4  
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MR-3018 GENERAL DESCRIPTION  
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2.6 Description of Interface Signals  
The following 6 lines are used to transmit/receive signals between the equipment and the RADF.  
REQ ......................Communication request signal (from equipment to the RADF)  
DF-REQ ................Communication request signal (from the RADF to equipment)  
DF-ACK.................Communication request acknowledging signal (from the RADF to equipment)  
ACK.......................Communication request acknowledging signal (from equipment to the RADF)  
TxD .......................Data transmitted from equipment to the RADF  
RxD.......................Data transmitted from the RADF to equipment  
Data communication (RxD and TxD) between the scanner and the RADF has adopted the serial com-  
munication system which does not allow checking using testing devices to see whether the signals are  
transmitted/received properly in the field.  
RADF  
Equipment  
REQ  
DF-ACK  
TxD  
DF-REQ  
ACK  
RxD  
Fig.2-5  
MR-3018 GENERAL DESCRIPTION  
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3. DESCRIPTION OF OPERATIONS  
3.1 DRIVE SYSTEM  
Feed motor drive section  
3
Read motor drive section  
Exit/reverse motor drive section  
Fig.3-1  
3.1.1  
Outline  
Originals are transported by the original feed motor, read motor and original exit/reverse motor. Each  
motor has a drive section for the following operations:  
Original feed motor drive section:  
Read motor drive section:  
picks up originals and drives the registration roller.  
transports originals and drives parts such as the platen roller.  
Original exit/reverse motor drive section: exits and reverses originals, and drives the exit/reverse roller.  
The Original feed motor rotates reversely when the originals are being transported at the registration  
roller, compared to its rotational direction when they are being picked up.  
The original exit/reverse motor also rotates reversely when the originals are being reversed and trans-  
ported, compared to its rotational direction when they are being exited.  
The read motor always rotates in a constant direction.  
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MR-3018 DESCRIPTION OF OPERATIONS  
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3.1.2  
Original feed motor drive section  
Original feed motor  
Oneway clutch  
Pickup roller  
Feed roller  
Oneway clutch  
Separation roller  
Pickup  
Feed  
Registration roller  
Fig.3-2  
When an original is placed on the original tray and the RADF receives a feed request signal from the  
equipment, the feeding of the original is started.  
The original empty sensor detects the presence of the original, and then the pickup roller is lowered by  
the drive from the original pickup solenoid.  
The Original feed motor rotates, and the pickup roller and the feed roller then rotate in a normal direc-  
tion (shown in a solid line in the figure) to guide the original into the transport path. Then the original is  
transported to the registration roller to be aligned.  
The original aligned with the registration roller is then transported by the reverse rotation of the Original  
feed motor (shown in a dotted line in the figure).  
A one-way clutch is installed inside of each gear of the feed roller and the registration roller, so these  
gears will not be driven in a reverse rotation.  
When the original empty sensor detects that there is no original on the original tray, the original pickup  
solenoid is turned OFF and the pickup roller is raised.  
The original pickup solenoid is the one can operate both suction and recovery.  
MR-3018 DESCRIPTION OF OPERATIONS  
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3.1.3  
Read motor drive section  
Read motor  
Reverse registration roller  
Post-reading roller  
3
Platen roller  
Pre-reading roller  
Intermediate transfer roller  
Fig.3-3  
The transported original is driven by the read motor.  
Then the original is transported to a scanning start position by the intermediate transfer roller, pre-read-  
ing roller and platen roller.  
The original transported to the scanning start position is then scanned in the scanner function of the  
equipment.  
When the data of the original have been scanned, the original is then transported to the original exit tray  
side by the post-reading roller.  
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MR-3018 DESCRIPTION OF OPERATIONS  
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3.1.4  
Original exit/reverse motor drive section  
Gate solenoid  
Reverse fapper  
Exit/reverse motor  
Exit  
Exit/reverse rollor  
Reverse  
Fig.3-4  
When the data of the original have been scanned, the original is exited to the original exit tray by the  
exit/reverse roller driven by the exit motor (shown in a solid line in the figure).  
In the duplex scanning mode, the gate solenoid is turned ON and the reverse flapper is lowered to  
switch the transport path to the reverse tray side when the scanning of one side of the original is com-  
pleted.  
When the reverse flapper is lowered, the original is temporarily transported to the reverse tray, and then  
the exit motor rotates reversely to return the original to the transport path switched for reverse operation  
(shown in a dotted line in the figure).  
The reversed original is aligned with the reverse registration roller, and then the other side of the origi-  
nal is scanned. When the scanning is completed, the original is exited to the original exit tray.  
MR-3018 DESCRIPTION OF OPERATIONS  
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3.2 Original Size Detection  
The original tray width sensor, original length detection sensor, and original width detection sensors-1  
and -2 work in combination to detect the size of originals.  
Original width detection sensor-2  
Original width detection sensor-1  
Original tray width sensor  
Original length  
detection sensor  
3
Fig.3-5  
3.2.1  
Outline  
When an original is placed on the original tray, the width of the original is detected by the positions of  
the original width guides. Then the original width sensors -1 and -2 and the original length detection  
sensor detect the size of the original being transported. Based on the detection result of these sensors,  
the size of the original is finally determined.  
3.2.2  
Original tray width sensor  
The original tray width sensor detects the width of the original placed on the original tray.  
This sensor consists of a leaf spring and 4 contacting points (= 4 harnesses). When the original width  
guides are moved, a protruded part located under the guides pushes the leaf spring, and the leaf spring  
thus contacts the harnesses. The gap between these guides is detected by this contact.  
A terminal connected with the black harness is for grounding (= common). When the leaf spring con-  
tacts with each harness of gray, yellow and orange, each terminal connected with these harnesses gen-  
erates a signal at a low level.  
The combination of these contact (= low level) and release (= high level) can determine the width of the  
original.  
Sizes detectable in combination of these contact and release are as follows:  
TWIDTH2  
(Orange)  
TWIDTH1  
(Yellow)  
TWIDTH0  
(Gray)  
Original width size  
H
H
H
L
L
L
H
H
L
H
H
L
H
L
H
H
L
LD / LT  
-
ST-R  
LD / LT  
-
H
L
8.5x8.5 / LT-R / KLG / 13”LG  
COMPUTER  
L
L
H (= high level): Release  
L (= low level): Contact  
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MR-3018 DESCRIPTION OF OPERATIONS  
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3.2.3  
Original width detection sensors-1 and -2 / Original length  
detection sensor  
The size of the original is determined by the detection performed in combination of the original width  
detection sensors-1 and -2 and the original length detection sensor, as well as the detection performed  
by the original tray width sensor.  
Sizes detectable in combination of these sensors are as follows:  
A4 series (ORG-SRS: 1)  
Original length  
detection sensor  
Original width  
sensor-1  
Original width  
sensor-2  
Size determined  
Original tray width  
OFF  
ON  
OFF  
OFF  
ON  
A5-R  
-
-
-
-
OFF  
ON  
B5  
ON  
A4  
B5-R  
OFF  
OFF  
A4-R / FOLIO  
B4  
Determined by a gap  
between guides  
ON  
ON  
OFF  
ON  
A3  
-
A4 series (width sizes mixed at A3 / A4 standard)  
Original length  
detection sensor  
Original width  
sensor-1  
Original width  
sensor-2  
Size determined  
Original tray width  
A3 / A4  
ON  
OFF  
ON  
ON  
OFF  
OFF  
OFF  
ON  
A3  
ON  
A4-R / FOLIO  
B4  
B5  
A4  
ON  
OFF  
ON  
A4 series (width sizes mixed at B4 / B5 standard)  
Original length  
detection sensor  
Original width  
sensor-1  
Original width  
sensor-2  
Size determined  
Original tray width  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
A4-R / FOLIO  
ON  
B4  
B5  
B4/B5  
ON  
OFF  
OFF  
A5-R  
A4 series (width sizes mixed at A4-R standard)  
Original length  
detection sensor  
Original width  
sensor-1  
Original width  
sensor-2  
Size determined  
Original tray width  
OFF  
ON  
OFF  
OFF  
OFF  
B5-R  
A4-R / FOLIO  
A5-R  
ON  
A4-R  
OFF  
OFF  
A4 series (width sizes mixed at B5-R standard)  
Original length  
detection sensor  
Original width  
sensor-1  
Original width  
sensor-2  
Size determined  
Original tray width  
ON  
OFF  
OFF  
OFF  
OFF  
B5-R  
A5-R  
B5-R  
OFF  
MR-3018 DESCRIPTION OF OPERATIONS  
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LT series (ORG-SRS: 0)  
Original length  
detection sensor  
Original width  
Original width  
sensor-2  
Size determined  
Original tray width  
sensor-1  
OFF  
ON  
OFF  
OFF  
ON  
ST-R  
-
-
-
-
-
OFF  
ON  
8.5x8.5  
ON  
A4  
ON  
OFF  
ON  
LT-R / LG / COMP / 13”LG  
LD  
ON  
LT series (width sizes mixed at LD / LT standard)  
Original length  
detection sensor  
Original width  
sensor-1  
Original width  
sensor-2  
Size determined  
Original tray width  
ON  
ON  
ON  
OFF  
OFF  
ON  
LD  
3
ON  
COMP  
LD / LT  
OFF  
ON  
LT-R / LG / 8.5x8.5 / 13”LG  
LT  
OFF  
LT series (width sizes mixed at LG / LT-R standard)  
Original length  
detection sensor  
Original width  
sensor-1  
Original width  
sensor-2  
Size determined  
Original tray width  
ON  
ON  
OFF  
OFF  
LT-R / LG / 8.5x8.5 / 13”LG  
ST-R  
LD / LT  
OFF  
OFF  
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3.3 FLOW CHART  
Power ON  
Standby  
YES  
NO  
RADF jam access  
cover OPEN?  
NO  
All sensors OFF?  
YES  
Jam  
NO  
Empty sensor ON?  
YES  
NO  
NO  
Feed request  
signal received?  
Standby  
Jam  
YES  
Original on  
feeding tray?  
YES  
D
Pickup solenoid ON,  
pickup roller goes down,  
feed motor rotates forward.  
A
MR-3018 DESCRIPTION OF OPERATIONS  
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A
NO  
Original registration  
sensor ON?  
YES  
A certain period  
of time passed?  
NO  
Feed motor stops after  
transporting for a  
certain period of time.  
3
YES  
Jam  
NO  
A certain period  
of time passed?  
YES  
Registration roller rotates.  
(Feed motor rotates reverse.)  
Read motor rotates.  
Monitoring registration  
sensor by parallel processing.  
Feed motor stops when registration  
sensor detects trailing edge of  
Paper transprted  
before the intermideate  
transport roller?  
NO  
original. Skip to  
.
D
YES  
Feed motor rotation speed switches.  
First scan: Highest speed  
Second scan/later: Requested speed  
B
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B
NO  
Original intermediate  
transport sensor ON?  
YES  
NO  
A certain period  
of time passed?  
Feed motor and read motor  
stop after transporting for  
certain period of time.  
YES  
Jam  
NO  
Feed request signal  
received?  
YES  
YES  
Duplex?  
NO  
E
Registration roller also rotates,  
while read motor rotates  
and registration sensor ON.  
Transport for  
a certain amount of  
distance completed?  
NO  
YES  
Scanning start signal  
sent (level: High)  
Exposure and scanning start.  
C
MR-3018 DESCRIPTION OF OPERATIONS  
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C
NO  
Original exit/reverse  
sensor ON?  
YES  
NO  
A certain period  
of time passed?  
Original exit/reverse  
motor rotates.  
YES  
Jam  
3
NO  
Read sensor OFF?  
YES  
NO  
A certain period  
of time passed?  
YES  
Scanning start signal  
sent (level: High)  
Scanning completed.  
NO  
Original exit/reverse  
sensor OFF?  
YES  
NO  
A certain period  
of time passed?  
Read motor stops.  
YES  
Jam  
Transport for  
a certain amount of  
distance completed?  
NO  
YES  
Original exit/reverse  
motor stops.  
END  
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E
Registration roller also rotates,  
while read motor rotates  
and registration sensor ON.  
Gate solenoid ON  
Transport for  
a certain amount of  
distance completed?  
NO  
YES  
Scanning start signal  
sent (level: High)  
Exposure and scanning start.  
NO  
Original exit/reverse  
sensor ON?  
YES  
NO  
A certain period  
of time passed?  
Original exit/reverse  
motor rotates.  
YES  
Jam  
Read sensor OFF?  
YES  
NO  
A certain period  
of time passed?  
YES  
Scanning start signal  
sent (level: Low)  
Scanning completed.  
F
MR-3018 DESCRIPTION OF OPERATIONS  
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F
NO  
Original exit/reverse  
sensor OFF?  
YES  
NO  
A certain period  
of time passed?  
Transport for  
a certain amount of  
distance completed?  
NO  
YES  
Jam  
3
YES  
Original exit/reverse motor  
and read motor stop.  
After a certain period of time,  
original exit/reverse motor reverses,  
read motor starts, reverse roller  
aligns original, and then system reboots.  
NO  
Original intermediate  
transport sensor ON?  
YES  
NO  
A certain period  
of time passed?  
Exit/reverse and read motor  
stop after transporting for  
a certain amount of distance.  
YES  
Jam  
NO  
Transport request  
signal received?  
YES  
Read motor and  
exit/reverse motor rotate  
at requested speed.  
Transport for  
a certain amount of  
distance completed?  
NO  
YES  
G
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G
Scanning start signal  
sent (level: High)  
Exposure and scanning start.  
NO  
Original exit/reverse  
sensor ON?  
YES  
NO  
A certain period  
of time passed?  
Original exit/reverse  
motor rotates.  
YES  
Jam  
NO  
NO  
Read sensor OFF?  
YES  
A certain period  
of time passed?  
YES  
Scanning start signal  
sent (level: Low)  
Scanning completed.  
NO  
Original exit/reverse  
sensor OFF?  
YES  
NO  
A certain period  
of time passed?  
Transport for  
a certain amount of  
distance completed?  
YES  
Jam  
NO  
YES  
H
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H
Original exit/reverse motor  
and read motor stop.  
After a certain period of time,  
original exit/reverse motor reverses,  
read motor starts, reverse roller  
aligns original, and then system reboots.  
3
NO  
Original intermediate  
transport sensor ON?  
YES  
NO  
A certain period  
of time passed?  
YES  
Jam  
NO  
Original exit/reverse  
sensor OFF?  
YES  
NO  
A certain period  
of time passed?  
Transport for  
a certain amount of  
distance completed?  
YES  
Jam  
NO  
YES  
Original exit/reverse motor  
and read motor stop.  
Gate solenoid OFF  
END  
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3.4 DESCRIPTION OF CIRCUIT  
3.4.1  
Drive Circuit for Feed Motor  
Fig.3-6  
This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor cur-  
rent of the feed motor.  
A drive clock signal (FMOT-CLK) and rotation direction signal (FMOT-CW/CCW) are input to control the  
speed and direction of the motor rotation.  
When the level of the enabling signal (FMOT-Enable) is set to "L", motor current is turned OFF regard-  
less of the state of other signals.  
For the excitation mode, either of 2 phase excitation, 1-2 phase excitation, W1-2 phase excitation,  
2W1-2 phase excitation or the 4W1-2 phase excitation can be selected using the excitation switching  
signal (FMOT-Mode1/FMOT-Mode2).  
The edge switching signal (FMOT-Mode3) is used to specify the switching timing for excitation phase  
either from when both the rise and decay edge of the CLK input are detected or when only the rising  
edge is detected.  
Motor current value can be set discretionary by changing the level of the reference setting signal  
(FMOT-REF).  
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3.4.2  
Drive Circuit for Read Motor  
3
Fig.3-7  
This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor cur-  
rent of the read motor.  
A drive clock signal (RMOT-CLK) and rotation direction signal (RMOT-CW/CCW) are input to control  
the speed and direction of the motor rotation.  
When the level of the enabling signal (RMOT-Enable) is set to "L", motor current is turned to OFF  
regardless of the state of other signals.  
For the excitation mode, either of 2 phase excitation, 1-2 phase excitation, W1-2 phase excitation,  
2W1-2 phase excitation or the 4W1-2 phase excitation can be selected using the excitation switching  
signal (RMOT-Mode1/RMOT-Mode2).  
The edge switching signal (RMOT-Mode3) is used to specify the switching timing for excitation phase  
either from when both the rise and decay edge of the CLK input are detected or when only the rising  
edge is detected.  
Motor current value can be set discretionary by changing the level of the reference setting signal  
(RMOT-REF).  
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3.4.3  
Drive Circuit for Exit Motor  
Fig.3-8  
This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor cur-  
rent of the exit motor.  
A drive clock signal (EMOT-CLK) and rotation direction signal (EMOT-CW/CCW) are input to control  
the speed and direction of the motor rotation.  
When the level of the enabling signal (EMOT-Enable) is set to "L", motor current is turned OFF regard-  
less of the state of other signals.  
As IC3-10pin (MODE1) is connected to +5V, excitation mode is applied at 1-2 phase excitation.  
The edge switching signal (EMOT-Mode3) is used to specify the switching timing for excitation phase  
either from when both the rise and decay edge of the CLK input are detected or when only the rising  
edge is detected.  
Motor current value can be set discretionary by switching the level of the reference switching signal  
(EMOT-REFS0,EMOT-REFS1).  
3.4.4  
Drive Circuit for FAN Motor  
Fig.3-9  
This circuit controls the rotation/stoppage of the fan motor. The FAN starts to rotate when the FAN  
motor drive signal level is set to “H”, and stops when the level is set to “L”.  
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3.4.5  
Reset Circuit  
Fig.3-10  
3
This circuit generates a reset signal when the power is turned ON and the power voltage is blocked or  
cut off/lowered temporarily.  
At the power-ON, the circuit shifts the level of the reset signal from “L” to “H” to put the CPU in a opera-  
tive state after the reset pulse duration (Tpd) determined by the capacitance of C58 has passed from  
when the power voltage has reached the supervisory voltage (Vs) divided by R116 and R117.  
When a power voltage drop (cutoff, temporary cutoff, temporary low voltage) occurs and the power volt-  
age becomes lower than the set value for the supervisory voltage for the power, the circuit sets the level  
of the reset signal (RESET) to “L” to put the CPU in a halt state.  
3.4.6  
Drive Circuit for Pickup Solenoid  
Fig.3-11  
Pick up solenoid is a two-way solenoid that can be operated both in suction and recovery, and driven by  
two transistors (Q4 and Q2) for each operation respectively.  
When the PSOL-ON-Signal level is set to “L”, Q4 is turned ON, the power of 24V is applied to the coil  
for suction operation, the solenoid is turned ON, and then the pickup roller goes down.  
When the PSOL-ON-Signal level is set to “L”, Q2 is turned ON, the power of 24V is applied to the coil  
for recovery operation, the solenoid is turned OFF, and then the pickup roller goes up.  
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3.4.7  
Drive Circuit for Gate Solenoid  
Fig.3-12  
Gate solenoid driven by the driver transistor (Q1) is a solenoid which is used to switch an original into  
the reverse tray when in the duplex scanning mode.  
When the GSOL-ON-Signal level is set to “L”, the reverse flapper goes down and the original is trans-  
ported to the reverse tray.  
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4. DISASSEMBLY AND ASSEMBLY  
4.1 Cover  
[A] Front cover  
(1) Open the RADF and remove 3 screws.  
4
Fig.4-1  
Fig.4-2  
Fig.4-3  
(2) Close the RADF.  
(3) Open the jam access cover and remove 2  
screws.  
(4) Take off the front cover toward you.  
Front cover  
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[B] Rear cover  
(1) Open the jam access cover and remove 4  
screws.  
Fig.4-4  
(2) Raise the original tray and take off the rear  
cover upward.  
Rear cover  
Fig.4-5  
[C] Jam access cover  
(1) Take off the front cover.  
Pin  
(
(2) Take off the rear cover.  
(
(3) Remove 1 clip and then the dial and pin.  
Dial  
Clip  
Fig.4-6  
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(4) Remove 1 screw and the hinge pin.  
Hinge pin  
Fig.4-7  
(5) Take off the jam access cover by sliding it.  
Jam access cover  
4
Fig.4-8  
[D] Left cover  
(1) Remove 2 screws and take off the left cover.  
Left cover  
Fig.4-9  
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[E] Original tray  
(1) Take off the front cover.  
Feeder upper guide  
Screw  
(
(2) Take off the rear cover.  
(3) Take off the paper feeder unit.  
(
(
(4) Remove 2 screws. Lift up the feeder upper  
guide by sliding it to the right.  
Note:  
Do not pull the harness too strong.  
Screw  
Fig.4-10  
(5) Disconnect 1 connector from the RADF con-  
trol PC board.  
Fig.4-11  
(6) Remove 1 screw and take off the bushing.  
(7) Take off the original tray.  
Original tray  
Bushing  
Screw  
Fig.4-12  
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[F] Original reverse tray  
(1) Take off the original tray.  
Original reverse tray  
(
(2) Remove 1 screw and take off the original  
reverse tray.  
Fig.4-13  
4
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4.2 Roller  
[A] Paper feeder unit  
(1) Open the jam access cover.  
(2) Remove 2 screws and take off the bracket.  
Bracket  
Screw  
Fig.4-14  
(3) Remove 1 clip and slide 2 bushings.  
Clip  
Fig.4-15  
(4) Take off the paper feeder unit.  
Paper feeder unit  
Fig.4-16  
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[B] Pickup roller [PM]  
(1) Take off the paper feeder unit.  
Shaft  
Pin  
(
(2) Remove 1 clip and pull out the shaft. Take off  
the pickup roller.  
Clip  
Pickup roller  
Fig.4-17  
Notes:  
4
1. Be careful not to drop the pin because it  
will come off when the shaft is pulled out.  
2. Make sure you assemble the pickup roller  
with the one-way clutch in the correct  
direction.  
Lock  
Lock  
Fig.4-18  
[C] Feed roller [PM]  
(1) Take off the paper feeder unit.  
(
Clip  
(2) Remove 1 clip.  
Fig.4-19  
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(3) Slide the pulley and remove 1 pin.  
Pin  
Pulley  
Fig.4-20  
(4) Pull out the shaft and take off the feed roller.  
Feed roller  
Shaft  
Fig.4-21  
Note:  
Make sure you assemble the feed roller with  
the one-way clutch in the correct direction.  
Lock  
Lock  
Fig.4-22  
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[D] Separation roller [PM]  
(1) Take off the paper feeder unit.  
Feeder upper guide  
Screw  
(
(2) Remove 2 screws. Slide the feeder upper  
guide to the right and raise it.  
Note:  
Do not pull the harness out with too much  
force.  
Screw  
Fig.4-23  
(3) Remove 2 screws and take off the separation  
roller holder and separation roller unit.  
Separation roller unit  
Screw  
4
Separation roller holder  
Fig.4-24  
(4) Remove 1 bushing and clip, and then take off  
the separation roller.  
Separation roller  
Bushing  
Clip  
Fig.4-25  
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[E] Feeder lower guide  
(1) Take off the original tray.  
Stay  
(
(2) Take off the paper feeder unit.  
(3) Remove 2 screws and take off the stay.  
(
Fig.4-26  
(4) Take off the jam access guide.  
Jam access guide  
Fig.4-27  
(5) Remove 4 screws. Disconnect 1 connector  
and take off the feeder lower guide.  
Feeder lower guide  
Fig.4-28  
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[F] Registration roller  
(1) Take off the feeder lower guide.  
Bushing  
E-ring  
Bushing  
Registration roller  
(
(2) Take off the original feed motor drive section.  
Pulley  
(
(3) Remove 1 E-ring and 1 bushing from the  
front side of the registration roller shaft. Also,  
remove 1 bushing, 1 pulley, 1 E-ring and 1  
bushing from the rear side of the shaft, and  
then take off the registration roller.  
Bushing  
E-ring  
Fig.4-29  
4
[G] Exit/reverse roller  
(1) Take off the front cover.  
Bushing  
Pin  
(
(2) Take off the original exit/reverse motor.  
(
(M3)")  
(3) Remove 1 clip, 1 pulley, 1 pin and 1 bushing  
from the rear side of the exit/reverse roller  
shaft.  
Pulley  
Clip  
Fig.4-30  
(4) Remove 1 screw and take off the leaf spring.  
(5) Remove 1 clip and 1 bushing from the front  
side of the exit/reverse roller shaft.  
Leaf spring  
Bushing  
Clip  
Fig.4-31  
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(6) Take off the jam access guide.  
Jam access guide  
Fig.4-32  
Fig.4-33  
Fig.4-34  
(7) Pull out the exit guide.  
Exit guide  
(8) Take off the exit/reverse roller.  
Exit/reverse roller  
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[H] Pre-reading lower guide / pre-reading upper guide  
(1) Take off the front cover.  
Pre-reading lower guide  
(
(2) Take off the rear cover.  
(3) Take off the jam access cover.  
(4) Take off the left cover.  
(
(
(
(5) Remove 4 screws and take off the pre-read-  
ing lower guide.  
Fig.4-35  
(6) Disconnect 2 connectors. Remove 2 screws  
and take off the pre-reading upper guide.  
4
Pre-reading upper guide  
Fig.4-36  
[I] Intermediate transport roller  
(1) Take off the pre-reading upper guide.  
Bushing  
E-ring  
(
Pulley  
(2) Take off the read motor drive section.  
Pin  
Bushing  
(
(3) Remove 1 bushing, 1 E-ring, 1 pulley, 1 pin  
and 1 bushing from the rear side of the inter-  
mediate transport roller shaft.  
(4) Remove 1 bushing from the front side of the  
intermediate transport roller shaft.  
(5) Take off the intermediate transport roller.  
Intermediate transport roller  
Bushing  
Fig.4-37  
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[J] Pre-reading roller  
(1) Take off the pre-reading upper guide.  
(
(2) Take off the read motor drive section.  
(
(3) Remove 1 bushing and 1 E-ring from the rear  
side of the pre-reading roller shaft. Loosen 2  
setscrews and take off 1 flange. Then take  
off 1 pulley and 1 bearing.  
Flange  
Bushing  
E-ring  
Bearing  
Pulley  
Fig.4-38  
(4) Remove 1 clip and 1 bushing from the front  
side of the pre-reading roller shaft.  
(5) Take off the pre-reading roller.  
Clip  
Pre-reading roller  
Bushing  
Fig.4-39  
[K] Platen roller / post-reading roller  
(1) Take off the pre-reading lower guide.  
(
(2) Disconnect 1 connector.  
Connector  
Fig.4-40  
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(3) Take off the read motor drive section.  
(
(4) Remove 1 bushing, 1 E-ring and 1 pulley  
from the rear side of the post-reading roller  
shaft. Loosen 2 setscrews and take off 1  
flange. Take off 1 bearing.  
Bearing  
Flange  
Bushing E-ring Pulley  
Fig.4-41  
(5) Remove 1 clip and 1 bushing from the front  
side of the post-reading roller shaft.  
4
Bushing  
Clip  
Fig.4-42  
(6) Open the RADF. Remove 4 screws, take off  
2 holders and platen guide.  
Holder  
Screw  
Screw  
Screw  
Platen guide  
Holder  
Screw  
Fig.4-43  
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(7) Remove 2 screws. Open the post-reading  
lower guide and take off the post-reading  
upper guide.  
Post-reading  
upper guide  
Fig.4-44  
(8) Take off the platen roller and post-reading  
roller.  
Post-reading roller  
Platen roller  
Fig.4-45  
[L] Reverse registration roller  
(1) Take off the platen roller and post-reading  
roller.  
Pin  
Bushing  
(
(2) Remove 1 E-ring, 1 pulley, 1 pin and 1 bush-  
ing from the rear side of the reverse registra-  
tion roller shaft.  
Bushing  
Pulley  
E-ring  
Fig.4-46  
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(3) Remove 1 clip and 1 bushing from the front  
side of the reverse registration roller shaft.  
Bushing  
Clip  
Fig.4-47  
(4) Open the RADF. Take off the reverse regis-  
tration roller.  
4
Reverse registration  
roller  
Fig.4-48  
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4.3 Motor / Motor drive section  
[A] Fan motor (M4)  
(1) Take off the rear cover.  
Fan motor  
Connector  
(
(2) Disconnect 1 connector. Then remove 2  
screws to take off the fan motor.  
Screw  
Fig.4-49  
[B] Read motor (M2)  
(1) Take off the rear cover.  
Connector  
(
(2) Take off the fan motor.  
(
(3) Disconnect 1 connector. Then remove 2  
screws to take off the read motor.  
Screw  
Read motor  
Fig.4-50  
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[C] Read motor drive section  
(1) Take off the rear cover.  
Connector  
(
(2) Take off the fan motor.  
(
(3) Disconnect 1 connector, and then remove 1  
spring. (Spring: Outside diameter of coil –  
ø10.2 mm, active coils – 12.5)  
Spring  
Fig.4-51  
Fig.4-52  
Fig.4-53  
(4) Remove 3 screws, and then take off the read  
motor with its bracket.  
4
Read motor  
Note:  
When the unit is being assembled, tempo-  
rarily tighten the screws removed at step (3),  
and then attach the spring removed at step  
(2). Then fully tighten these screws.  
Screw  
(5) Remove 1 spring. (Spring: Outside diameter  
of coil –ø8.8 mm, active coils – 12.5)  
(6) Release the harness from 2 harness clamps.  
Harness clamp  
Harness clamp  
Spring  
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(7) Remove 3 screws and then take off the  
bracket.  
Bracket  
Screw  
Fig.4-54  
(8) Take off 1 timing belt and 4 bushings.  
Timing belt  
Bushing  
Fig.4-55  
(9) Loosen 1 screw of the belt tensioner.  
(10) Remove the E-ring, and then take off the pul-  
ley and timing belt.  
E-ring  
Tensioner  
Note:  
When the unit is being assembled, first install  
the parts removed at steps (5), (6), (7) and  
(9), and attach the spring removed at step (4)  
next. Then tighten the screw loosened at  
step (8).  
Timing belt  
E-ring  
Fig.4-56  
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[D] Original feed motor (M1)  
(1) Take off the rear cover.  
Connector  
(
(2) Disconnect 1 connector. Then remove 2  
screws to take off the original feed motor.  
Original feed motor  
Fig.4-57  
4
[E] Original feed motor drive section  
(1) Take off the rear cover.  
Connector  
(
(2) Disconnect 1 connector, and then remove 1  
spring. (Spring: Outside diameter of coil –  
ø9.6 mm, acceptable turns of coil – 12 turns)  
Spring  
Fig.4-58  
(3) Remove 3 screws, and then take off the orig-  
inal feed motor with its bracket.  
Note:  
When the unit is being assembled, tempo-  
rarily tighten the screws removed at step (3)  
and then attach the spring removed at step  
(2). Then fully tighten these screws.  
Original feed motor  
Fig.4-59  
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(4) Release the harness from 3 harness clamps.  
(5) Remove 1 E-ring and take off the bushing.  
Harness clamp  
Bushing  
E-ring  
Fig.4-60  
(6) Disconnect 2 terminals of the switch.  
(7) Remove 4 screws, and then take off the  
bracket.  
Bracket  
Screw  
Brown  
Red  
Screw  
Screw  
Fig.4-61  
(8) Take off the timing belt, bushings and pulley.  
Pulley  
Bushing  
Timing belt  
Fig.4-62  
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[F] Original exit/reverse motor (M3)  
(1) Take off the original feed motor drive section.  
(
(2) Disconnect 1 connector from the RADF con-  
trol PC board.  
Fig.4-63  
(3) Remove 2 screws, and then take off the orig-  
inal exit/reverse motor with its bracket.  
Original exit/reverse motor  
4
Fig.4-64  
(4) Remove 2 screws, and then take off the orig-  
inal exit/reverse motor by sliding it from the  
bracket.  
Bracket  
Original exit/reverse motor  
Fig.4-65  
June 2005 © TOSHIBA TEC  
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4.4 Solenoid  
[A] Original pickup solenoid (SOL1)  
(1) Take off the original feed motor drive section.  
(
(2) Disconnect one connector. Remove 2  
screws and take off the original pickup sole-  
noid with the bracket.  
Screw  
Connector  
Original pickup solenoid  
Fig.4-66  
(3) Remove 2 screws and take off the original  
pickup solenoid from the bracket.  
Original pickup solenoid  
Bracket  
Fig.4-67  
Note:  
When installing the original pickup solenoid,  
be sure to align the edge of the original  
pickup solenoid with the mark-off line on the  
frame.  
Mark-off line  
Fig.4-68  
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[B] Gate solenoid (SOL2)  
(1) Take off the original pickup solenoid.  
(
Gate solenoid  
(2) Disconnect one connector. Remove 2  
screws and take off the gate solenoid with  
the bracket.  
Screw  
Connector Screw  
Fig.4-69  
(3) Remove 2 screws and take off the gate sole-  
noid from the bracket.  
4
Gate solenoid  
Fig.4-70  
Note:  
When installing the gate solenoid, be sure to  
align the edge of the bracket with the mark-  
off line on the frame.  
Mark-off line  
Fig.4-71  
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4.5 Sensor/switch  
[A] Original tray width sensor (S2)  
(1) Take off the original reverse tray.  
(
(2) Remove 2 screws. Release 8 latches and  
separate the original tray into 2 parts.  
Fig.4-72  
(3) Remove 1 screw and take off the original tray  
width sensor.  
Original tray  
width sensor  
Fig.4-73  
[B] Original tray sensor (S1)  
(1) Take off the original reverse tray.  
(
(2) Remove 2 screws. Release 8 latches and  
separate the original tray into 2 parts.  
Fig.4-74  
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(3) Remove 2 screws and take off the holder.  
Holder  
Fig.4-75  
(4) Release 2 latches and take off the original  
tray sensor.  
Original tray sensor  
4
Fig.4-76  
[C] Jam access cover sensor (S11)  
(1) Open the jam access cover.  
(2) Remove 1 screw and take off the metal plate  
cover.  
Metal plate cover  
Fig.4-77  
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(3) Disconnect 1 connector. Release 2 latches  
and take off the jam access cover sensor.  
Jam access cover sensor  
Fig.4-78  
[D] Original empty sensor (S3)  
(1) Open the jam access cover.  
(2) Remove 1 screw and take off the metal plate  
cover.  
Metal plate cover  
Fig.4-79  
(3) Remove 2 screws and take off the bracket.  
Bracket  
Fig.4-80  
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(4) Disconnect 1 connector. Release 2 latches  
and take off the original empty sensor.  
Original empty sensor  
Fig.4-81  
[E] Original length detection sensor (S4)  
(1) Take off the feeder lower guide.  
4
Original length detection sensor  
(
(2) Disconnect 1 connector. Release 2 latches  
and take off the original length detection sen-  
sor.  
Fig.4-82  
[F] Original registration sensor (S5)  
(1) Take off the feeder lower guide.  
Original registration sensor  
(
(2) Disconnect 1 connector. Release 2 latches  
and take off the original registration sensor.  
Fig.4-83  
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[G] Original width detection sensor-1 (S6)  
(1) Take off the feeder lower guide.  
Actuator  
Original width detection sensor-1  
(
(2) Take off the actuator.  
(3) Disconnect 1 connector. Release 2 latches  
and take off the original width detection sen-  
sor-1.  
Fig.4-84  
[H] Original width detection sensor-2 (S7)  
(1) Take off the feeder lower guide.  
Actuator  
Original width detection sensor-2  
(
(2) Take off the actuator.  
(3) Disconnect 1 connector. Release 2 latches  
and take off the Original width detection sen-  
sor-2.  
Fig.4-85  
[I] Read sensor (S9)  
(1) Take off the pre-reading upper guide.  
Read sensor  
(
(2) Release 2 latches and take off the read sen-  
sor from the pre-reading upper guide.  
Fig.4-86  
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[J] Intermediate transport sensor (S8)  
(1) Take off the pre-reading upper guide.  
(
(2) Release 2 latches and take off the intermedi-  
ate transport sensor from the pre-reading  
upper guide.  
Intermediate transport sensor  
Fig.4-87  
4
[K] Original exit/reverse sensor (S10)  
(1) Take off the pre-reading lower guide.  
(
(2) Disconnect 1 connector.  
Connector  
Fig.4-88  
(3) Open the RADF. Remove 2 screws, and then  
take off 2 holders and platen guide.  
Holder  
Screw  
Platen guide  
Holder  
Screw  
Fig.4-89  
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(4) Remove 2 screws. Open the post-reading  
lower guide and take off the post-reading  
upper guide.  
Post-reading  
upper guide  
Fig.4-90  
(5) Release 2 latches and take off the Original  
exit/reverse sensor from the post-reading  
upper guide.  
Original exit/reverse sensor  
Fig.4-91  
[L] RADF opening/closing sensor (S12)  
(1) Take off the rear cover.  
(
(2) Disconnect 1 connector. Release 2 latches  
and take off the RADF opening/closing sen-  
sor.  
RADF opening/closing sensor  
Fig.4-92  
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[M] Jam access cover opening/closing switch (SW1)  
(1) Take off the bracket of the original feed motor  
drive section.  
Jam access cover  
opening/closing  
switch  
Bracket  
(
Screw  
(2) Disconnect 2 terminals. Remove 1 screw  
and take off the jam access cover opening/  
closing switch.  
Brown  
Red  
Screw  
Screw  
Fig.4-93  
4
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4.6 PC Board  
[A] RADF control PC board (ADF board)  
(1) Take off the rear cover.  
(
(2) Disconnect 11 connectors.  
Fig.4-94  
(3) Release 2 lock supports and 3 edge spacer.  
Take off the ADF board.  
ADF board  
Fig.4-95  
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4.7 Others  
[A] Hinge stopper  
(1) Remove 1 screw and then take off the hinge  
stopper.  
Hinge stopper  
4
Fig.4-96  
Note:  
When the hinge stopper is taken off, the  
opening angle for the RADF becomes  
approx. 90 degrees. Take off the hinge stop-  
per only when it is needed for installation,  
maintenance service, etc.  
Fig.4-97  
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5. Adjustment  
5.1 Adjustment of Position  
Perform this adjustment when the RADF is not installed in the correct position.  
Note:  
Check if the image adjustment for the equipment is performed properly before this adjustment of  
the RADF. (See the Service Handbook of the applicable equipment.)  
[A] Checking  
(1) Open the RADF and install 2 positioning pins  
(the positioning pins are installed to the back  
side of the hinge which is on the left side of  
the RADF).  
5
Fig.5-1  
(2) Remove the platen sheet.  
Fig.5-2  
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(3) Close the RADF and check if the positioning  
pins fit the holes on the RADF.  
Fig.5-3  
[B] Adjustment  
If the pins cannot be fitted into the holes, perform the adjustment according to the following procedure.  
(1) Remove the right-hand hinge screw at the  
rear side.  
Fig.5-4  
(2) Loosen the left-hand hinge screw at the rear  
side.  
Fig.5-5  
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(3) Loosen the hinge screws at the front side.  
Fig.5-6  
Fig.5-7  
Fig.5-8  
(4) Position the pins with the holes on the RADF  
by moving it so that the pins fit into the holes  
when the RADF is closed.  
5
(5) Tighten the left-hand hinge screw at the rear  
side.  
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(6) Loosen the hole position adjustment screws  
on the right hand side.  
Fig.5-9  
Fig.5-10  
Fig.5-11  
(7) Match the screw hole positions.  
(8) Install the right-hand hinge screw at the rear  
side.  
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(9) Loosen the hinge screws at the front side.  
Fig.5-12  
(10) Place the platen sheet on the original glass  
and align it to the top left corner.  
Close the RADF gently and open it to check  
if the platen sheet is attached properly.  
5
Fig.5-13  
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5.2 Adjustment of Height  
Note:  
Check if the image adjustment for the equipment is performed properly before this adjustment of  
the RADF. (See the Service Handbook of the applicable equipment.)  
[A] Checking  
(1) Close the RADF.  
(2) Light the exposure lamp.  
Turn the power ON while pressing [0] and [3] simultaneously.  
Key in [267] and then press the [START] button. The exposure lamp is turned ON for a given  
length of time.  
(3) Visually check the gap between platen guide holder "A" and upper surface of the original glass  
"B" from the left hand side of the equipment. If the value is not within the tolerance, perform the  
adjustment according to the following procedure.  
[Tolerance of the gap]  
Rear side: 0 - 0.5 mm  
Front side: 0 mm  
A
B
A
B
Fig.5-14  
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[B] Adjustment  
(1) Close the RADF.  
(2) Adjust it by turning the adjustment screws on the hinges.  
Adjust the height on the rear side by means of the screw on the hinge on the feed side of the  
RADF.  
Turn it clockwise ................. Heightened  
Turn it counterclockwise ...... Lowered  
Fig.5-15  
5
Adjust the gap on the rear side by means of the screw on the hinge on the feed side of the  
RADF.  
Turn it clockwis .................... Lowered  
Turn it counterclockwise ...... Heightened  
Fig.5-16  
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5.3 Adjustment of Skew  
Note:  
Check if the image adjustment for the equipment is performed properly before this adjustment of  
the RADF. (See the Service Handbook of applicable equipment.) Also, the RADF position and  
height shall be adjusted properly.  
[A] Checking  
Check the image using the chart (original) with vertical and horizontal lines in the following procedure.  
Fig.5-17 Chart (Original)  
Simplex copying:  
(1) Place the chart provided as an original with its face up on the original tray of the RADF, select [1  
Sided -> 1 Sided] and press the [START] button.  
(2) Superimpose the chart on the copy and check the inclination of the copy image.  
Duplex copying:  
(1) Place the chart provided as an original with its face up on the original tray of the RADF, select [2  
Sided -> 2 Sided] and press the [START] button.  
(2) Superimpose the chart on the copy and check the inclination of the copy image.  
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[B] Adjustment  
Simplex copying:  
(1) Shift the aligning plate with the scale as the guide shown in the figure below to adjust the skew.  
Fig.5-18  
(2) If the image skew is "C" as shown in the figure below, shift the aligning plate in the direction of  
"+", and if "D", shift it to "-".  
5
C
D
Fig.5-19  
Fig.5-20  
Shift the aligning plate in the direction of "+".  
Shift the aligning plate in the direction of "-".  
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Duplex copying:  
(1) Shift the aligning plate with the scale as the guide shown in the figure below to adjust the skew.  
Fig.5-21  
(2) If the image skew is "C" as shown in the figure below, shift the aligning plate in the direction of "-  
", and if "D", shift it to "+".  
C
D
Fig.5-22  
Fig.5-23  
Shift the aligning plate in the direction of "-".  
Shift the aligning plate in the direction of "+".  
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5.4 Adjustment of the Leading Edge Position  
Note:  
Check if the image adjustment for the equipment is performed properly before this adjustment of  
the RADF. (See the Service Handbook of applicable equipment.) Also, the RADF position and  
height shall be adjusted properly.  
[A] Checking  
Check the image using the chart (original) with vertical and horizontal lines in the following procedure.  
Simplex copying:  
(1) Place the chart provided as an original with its face up on the original tray of the RADF, select [1  
Sided -> 1 Sided] and press the [START] button.  
(2) Superimpose the chart on the copy and check the leading edge E of the chart and F of the copy.  
Duplex copying:  
(1) Place the chart provided as an original with its face up on the original tray of the RADF, select [2  
Sided -> 2 Sided] and press the [START] button.  
(2) Superimpose the chart on the copy and check the leading edge E of the chart and F of the copy.  
F
E
5
Fig.5-24 Chart (Original)  
Fig.5-25 Copy  
[B] Adjustment  
Simplex copying:  
(1) Turn the power ON while pressing [0] and [5] simultaneously, key in [365] and then press the  
[START] button.  
(2) Enter the value.  
If the leading edge (F) margin of the copy image is larger than the (E) margin of the chart,  
enter a value smaller than the current one.  
Note:  
Changing one value shifts the copy image by 0.1 mm.  
If the leading edge (F) margin of the copy image is smaller than the (E) margin of the chart,  
enter a value larger than the current one.  
Note:  
Changing one value shifts the copy image by 0.1 mm.  
(3) Press the [ENTER] button.  
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Duplex copying:  
(1) Turn the power ON while pressing [0] and [5] simultaneously, key in [366] and then press the  
[START] button.  
(2) Enter the value.  
If the leading edge (F) margin of the copy image is larger than the (E) margin of the chart,  
enter a value smaller than the current one.  
Note:  
Changing one value shifts the copy image by 0.1 mm.  
If the leading edge (F) margin of the copy image is smaller than the (E) margin of the chart,  
enter a value larger than the current one.  
Note:  
Changing one value shifts the copy image by 0.1 mm.  
(3) Press the [ENTER] button.  
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5.5 Adjustment of Horizontal Position  
Note:  
Check if the image adjustment for the equipment is performed properly before this adjustment of  
the RADF. (See the Service Handbook of applicable equipment.) Also, the RADF position and  
height shall be adjusted properly.  
[A] Checking  
Check the image using the chart (original) with a center line in the following procedure.  
(1) Place the chart provided as an original with its face up on the original tray of the RADF.  
(2) Press the [START] button.  
(3) Fold the copy in half and check if the center line is misaligned.  
[B] Adjustment  
(1) Turn the power ON while pressing [0] and [5] simultaneously.  
(2) Key in [358] and then press the [START] button.  
If the center line of the copy image is shifted to the front side of the equipment, enter a value  
larger than the current one.  
Note:  
Changing one value shifts the copy image by 0.042 mm.  
5
G
Fig.5-26  
If the center line of the copy image is shifted to the rear side of the equipment, enter a value  
smaller than the current one.  
Note:  
Changing one value shifts the copy image by 0.042 mm.  
H
Fig.5-27  
(3) Press the [ENTER] button.  
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5.6 Adjustment of Copy Ratio  
Note:  
Check if the image adjustment for the equipment is performed properly before this adjustment of  
the RADF. (See the Service Handbook of applicable equipment.) Also, the RADF position and  
height shall be adjusted properly.  
[A] Checking  
Check the image using the chart (original) with vertical and horizontal lines in the following procedure.  
(1) Place the chart provided as an original with its face up on the original tray of the RADF.  
(2) Press the [START] button.  
(3) Superimpose the chart on the copy and check the image dimension “I”.  
[B] Adjustment  
(1) Turn the power ON while pressing [0] and [5] simultaneously.  
(2) Key in [357] and then press the [START] button.  
If the copy image dimension “I” is larger than the chart dimension, enter a value smaller than  
the current one.  
If the copy image dimension “I” is smaller than the chart dimension, enter a value larger than  
the current one.  
I
Fig.5-28  
(3) Press the [ENTER] button.  
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5.7 Adjustment of RADF Opening/Closing Sensor  
Adjust the bracket position so that the sensor is turned ON when the height “A” becomes 100 mm or  
less (within the empty weight falling limit).  
Fig.5-29  
5
Fig.5-30  
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6. Troubleshooting  
6.1 Troubleshooting for Mechanical Errors  
1) Multiple originals are transported simultaneously  
Original abnormally curled or folded?  
YESFlatten the original and set it again  
NO  
Separation roller is dirty?  
NO  
YESClean the roller with alcohol  
Replace the separation rollers with new ones  
2) Original is not transported to registration roller  
Original thicker than specified?  
YESUse originals with permissible thickness.  
Place thick originals manually on the platen cover to make a copy  
NO  
Pickup roller and feed roller are dirty?  
NO  
YESClean the rollers with alcohol  
Transport power of pickup roller and feed roller is weak?  
YES  
Replace the rollers with new ones  
3) Leading edge of original is skewed  
Front and rear protrusions at bottom of RADF are out of contact with glass?  
YESAdjust the height of the left hinge  
NO  
6
Transport rollers are dirty?  
NO  
YESClean the rollers with alcohol  
Is the right hinge out of place?  
YES  
Make a copy and adjust the position of the hinge  
4) Edges of original and copied image are not aligned  
Width between slides too wide compared to that of original?  
YESMove the slides so that they contact the edges of the original  
NO  
Check the scanner adjustment  
5) Black streaks appear on copied image  
ADF original glass is dirty?  
YESClean the glass with a dry/squeezed cloth  
NO  
Check the scanner unit  
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6.2 Troubleshooting for Electrical Errors  
1) RADF does not work (except in the case of a paper jam or when the cover is open)  
Interface harness connected properly?  
NOConnect the harness properly or replace it  
YES  
DC+5V supplied to CN70-2, 3pin?  
YES  
NOConnect the harness properly or replace it  
DC+24V supplied to CN70-6, 7pin?  
YES  
NOConnect the harness properly or replace it  
DC+24V supplied to CN72-4pin?  
YES  
NOCheck or replace the jam access cover switch  
Empty sensor is ON when there is paper?  
YES  
NOCheck or replace the empty sensor  
Check or replace the RADF board  
2) Abnormality of motor  
Power supplied and drives signals to connector of motor?  
NOCheck or replace motor  
YES  
There is no mechanical overloading at the motor and the drive system is correct? (Belt tension etc.)  
YES  
NOCheck or replace motor harness  
Check or replace the RADF board  
3) Communication error  
Interface cable normal?  
NOReplace the interface cable  
YES  
Check or replace the RADF board and check the equipment  
4) Size detection error  
Original tray sensor is ON when there is paper?  
NOReplace the sensor or harness  
YES  
Registration roller does not catch the original?  
NO  
YESClean the roller with alcohol or replace  
Original width detection sensor-1 is ON when there is paper?  
YES  
NOReplace the sensor or harness  
Original width detection sensor-2 is ON when there is paper?  
YES  
NOReplace the sensor or harness  
Check or replace the RADF board  
MR-3018 Troubleshooting  
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5) Abnormality of fan motor  
Is there a foreign matter in the fan motor?  
YESRemove the extraneous material  
NO  
Fan harness connected properly?  
YES  
NOConnect the fan harness properly or replace it  
Power supplied at CN84-1pin when FAN is ON?  
NO  
YESReplace the fan motor  
Check or replace the RADF board  
6
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MR-3018 Troubleshooting  
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7. MAINTENANCE AND REWRITING ROM  
7.1 Periodic Maintenance  
5
3
9
4
2
1
8
6
7
11  
10  
Fig.7-1  
Symbols used in the checklist  
Cleaning  
Lubrication/Coating  
Replacement  
Operation check  
A: Clean with alcohol  
B: Clean with soft pad,  
L: Launa 40  
SI: Silicon oil  
The number of sheets con-  
sumed before replacement  
(Value x 1,000).  
O: After cleaning or  
replacement, confirm  
there is no problem  
cloth or vacuum cleaner W: White grease  
(Molykote X5-6020) R: Replace if deformed or  
AV:Alvania No.2 damaged  
Preventive Maintenance Checklist  
Note:  
Page-Item (P-I) is described in the column of the Parts list.  
Lubrica-  
tion/  
Coating  
Replace-  
ment  
(x1,000)  
Cleaning  
(30K)  
Operation Parts list  
check (P-I)  
Item to check  
Pickup roller  
Remarks  
1
2
3
4
5
6
7
8
9
A
120  
120  
120  
7
Separation roller  
Feed roller  
A
A
Registration roller  
Intermediate transfer roller  
Front read roller  
Platen roller  
A
A
A
A
Rear read roller  
A
A
Reverse registration roller  
10 Exit/reverse roller  
11 Platen sheet  
A
B or A  
June 2005 © TOSHIBA TEC  
MR-3018 MAINTENANCE AND REWRITING ROM  
7 - 1  
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7.2 Rewriting ROM (Firmware Updating)  
It is feasible to update the firmware automatically by connecting the download jig to the PC board and  
turning the power of the equipment ON. The download jig K-PWA-DLM-320 is used.  
< Procedure >  
(1) Turning OFF the power of the equipment and take off the RADF rear cover.  
(2) Connect the download jig with the connector (CN81) on the PC board.  
(3) While pressing [0] and [8] simultaneously, turn ON the power. (rewriting data starts)  
(4) During the data is rewritten, the LED on the download jig lights. When the data rewriting is com-  
pleted, the LED blinks slowly (at an interval of 0.8 sec.). If the LED blinks fast (at an interval of  
0.1 sec.), the rewriting has been failed.  
(5) Turn OFF the power of the equipment and remove the download jig.  
(6) Install the RADF rear cover.  
*
If rewriting data is failed, turn OFF the power and repeat the procedure.  
Connector  
Fig.7-2  
MR-3018 MAINTENANCE AND REWRITING ROM  
June 2005 © TOSHIBA TEC  
7 - 2  
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8. CIRCUIT DIAGRAM / HARNESS DIAGRAM  
8.1 Assembly of PC Board  
Component side  
Fig.8-1  
Soldered side  
8
Fig.8-2  
June 2005 © TOSHIBA TEC  
MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
8 - 1  
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8.2 Circuit Diagram  
MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
June 2005 © TOSHIBA TEC  
8 - 2  
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8
June 2005 © TOSHIBA TEC  
MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
8 - 3  
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8.3 Control PC Board Circuit  
MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
June 2005 © TOSHIBA TEC  
8 - 4  
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8
June 2005 © TOSHIBA TEC  
MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
8 - 5  
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MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
June 2005 © TOSHIBA TEC  
8 - 6  
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8
June 2005 © TOSHIBA TEC  
MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
8 - 7  
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MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
June 2005 © TOSHIBA TEC  
8 - 8  
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8
June 2005 © TOSHIBA TEC  
MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
8 - 9  
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MR-3018 CIRCUIT DIAGRAM / HARNESS DIAGRAM  
June 2005 © TOSHIBA TEC  
8 - 10  
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Download from Www.Somanuals.com. All Manuals Search And Download.  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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