Sharp AR-RB1 User manual

SERVICE MANUAL
CODE: 00ZARRB1//A1E
DIGITAL FULL COLOR COPIER/PRINTER/
MULTIFUNCTIONAL SYSTEM OPTION
DUPLEX BYPASS/INVERTER UNIT
MODEL AR-RB1
CONTENTS
[1] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[3] INTERIOR CONSTRUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
[4] DESCRIPTION OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
[5] DISASSEMBLY, ASSEMBLY AND MAINTENANCE . . . . . . . . . . . 5-1
[6] ELECTRICAL SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
PARTS GUIDE
Parts marked with “ ” are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
SHARP CORPORATION This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

AR-RB1 SPECIFICATIONS 1 - 1
[1] SPECIFICATIONS
1. Type
2. System
3. Paper size
4. Paper weight
5. Paper capacity
6. Paper feed transport speed
7. Paper feed speed
8. Power supply
9. Weight
10. Drive pattern
11. Outer dimensions
12. Power consumption
[2] UNPACKING AND
INSTALLATION
1. UNPACKING
Note: Never put the reverse bypass module down by the dotted sec-
tion on the floor. (The full actuator may be damaged.)
2. Installation
Before installation
•Start installation after checking that the DATA indicator on the oper-
ation panel is neither lit nor blinking.
•For installation of AR-RB1, an optional stand (AR-D17/AR-D18/AR-
D19) must have been installed.
•Ensure that the connecting plate located on the front side of the
optional stand and the connecting plates on the sides (one on the
right side and left side respectively) are securely attached.
Duplex bypass with paper delivery reverse
Straight path Face-up paper delivery
Reverse path Face-down delivery
Duplex bypass Reverse direction and delivery to duplex unit
A3W/A3/B4/A4/A4R/B5/B5R/A5/A6R/Custom
(12 ×18/11 ×17/8.5 ×14/8.5 ×13/8.5 ×11/8.5 ×11R/7.25 ×10.5R/
8.5 ×5.5/EXERA)
Face-up delivery 64 –105g/m2, 106 –300g/m2
Face-down delivery/
ADU delivery
64 –105g/m2, 106 –200g/m2
250 sheets
(conditions: A4/letter size recommended, face-down delivery)
58.5mm/s –550mm/s
(speed based on signal commands from the copier)
Full color 26 sheets/min. (A4 landscape feed)
Monochrome 33 sheets/min. (A4 landscape feed)
5V, 24V supplied by the desk control PWB
6.5 kg
Paper feed, upper and lower turnover motors (stepping motors) and
drive PWB built-in
442.6 (W) ×126.2 (D) ×431.8 (H) mm
24V: 1A/24W
5V: 0.1A/0.5W
Packing case
Spacer
Spacer
Accessories
Restraining tape
(remove)
Restraining tape (remove)

AR-RB1 UNPACKING AND INSTALLATION 2 - 2
Parts included
1. Turn off the main switch of the main unit.
1) Turn the main switch located on the left side of the main unit to the
"OFF" position.
2) Then remove the power plug of the main unit from the outlet.
2. Remove the actuator.
1) If the exit tray is installed to the main unit, remove it.
2) While holding the base of the exit actuator of the main unit with one
hand, pull the end of the actuator with the other hand to remove
the actuator.
3. Remove the paper output section covers.
1) Pull the centers of the two paper output section covers on the left
side of the main unit to remove them.
In the case of AR-D17/D18:
1) Pull the lock release lever on the left side of the main unit to pull
out the left cover until it stops.
2) Pull the upper part of the paper input section cover on the left side
of the optional stand to remove the paper input section cover.
Transport guide holder: 2 pcs.
Actuator: 1 pc.
Transport guide: 1 pc.
"OFF"
Exit actuator
Paper output
section covers
Lock release lever
Left cover
Paper input section cover

AR-RB1 UNPACKING AND INSTALLATION 2 - 3
4. Attach the duplex bypass/inverter unit to the main
unit.
1) Close the left cover.
2) Hold the duplex bypass/inverter unit as shown in the illustration
and hang the two positioning bosses at the upper part in the two
positioning holes on the left cover of the main unit.
At this time, check that the two positioning bosses are hung
securely in the two positioning holes of the main unit.
3) Ensure that there is no clearance between the main unit and the
duplex bypass.
5. Secure the duplex bypass/inverter unit.
1) Close the cover of the duplex bypass/inverter unit and tighten the
two built-in screws to secure the duplex bypass to the main unit.
At this time, take care not to damage the transport surface with the
tip of a screwdriver.
2) Close the cover of the duplex bypass/inverter unit and reattach the
exit tray that has been removed in step 2<1> in the raised position
as shown in the illustration.
3) Insert the supplied actuator into the duplex bypass.
6. Attach the transport guide.
1) Pull the lock release lever to pull out the left cover.
2) Insert the transport guide into the paper input section (upper
groove) of the stand.
Positioning bosses
Positioning holes
Transport surface
Actuator
Lock release lever
Transport guide

AR-RB1 UNPACKING AND INSTALLATION 2 - 4
3) Attach the transport guide to the duplex bypass/inverter unit and
insert the two transport guide holders into the two transport guides
respectively. At this time, ensure that the transport guide holders
are secured at the notch positions.
4) After checking that the transport guide is aligned with the guide of
the stand, close the left cover of the main unit securely.
7. Connect the harness of the duplex bypass/
inverter unit.
1) Remove the screw from the power supply cover on the rear side of
the optional stand and then remove the power supply cover.
2) Cut out the portion (indicated with H) of the removed power supply
cover shown in the illustration.
3) Connect the relay harness of the duplex bypass/inverter unit to the
connector of the optional stand.
Then, insert the snap band into the mounting hole shown in the
illustration to secure the relay harness.
4) Pass the relay harness through the cut out hole, hang the two
pawls of the power supply cover on the rear cabinet, and attach the
cover with the screw.
Installation of AR-RB1 is now complete.
Transport guide holders
Front side
Rear side
Transport guide holder Transport guide holder
Transport guide Transport guide
Front side Rear side
Notch Notch
Notches
Power supply cover
Screw
Cut-out portion
Snap band
Relay harness
Connector
Power supply cover
Pawls
Screw
Relay harness

AR-RB1 INTERIOR CONSTRUCTION 3 - 1
[3] INTERIOR CONSTRUCTION
Motors and solenoid
PWB and sensors
No. Name Abbreviation Function/operation
1 Paper feed motor BIM Transports paper to the paper feed section
2 Gate solenoid BGSOL Switches the gate for straight delivery and reverse delivery
3 Upper turnover motor BRM Paper transport in upper section
4 Lower turnover motor BTM Paper transport in lower section
No. Name Abbreviation Function/operation
1 Door open/closed detector 1 BDD1 Detects open/closed status of upper door
2 Paper delivery sensor BPOD Detects discharged paper
3 Full capacity detection sensor BPFD Detects full capacity status in paper tray
4 BY drive PWB BY drive PWB INVERTER drive and controller
5 Transport sensor 1 BPPD1 Detects transport of paper
6 Reverse section detection sensor BPRD Detects presence of paper in the reverse section
7 Transport sensor 1 BPPD2 Detects transport of paper
8 Door open/closed detector 2 BDD2 Detects open/closed status of lower door
1
2
3
4
1
23
4
6
5
7
8

AR-RB1 INTERIOR CONSTRUCTION 3 - 2
Cross-section diagram
No. Name Function/operation
1 Delivery roller Discharges paper to the tray, or transports paper to the finisher.
2 Idle roller Applies a pressure to the delivery roller to transport and discharge paper.
3 Idle roller Applies a pressure to the paper feed roller to transport paper.
4 Paper feed roller Transports paper being transported from the main unit to the paper-out and reverse bypass direction.
5 Upper reverse roller Transports paper to the paper-out and reverse bypass direction.
6 Upper transport roller Transports paper to the paper-out and reverse bypass direction.
7 Lower reverse roller Reverses paper and transports it to ADU.
8 Idle roller Applies a pressure to the lower reverse roller to transport paper.
9 Idle roller Applies a pressure to the lower transport roller to transport paper.
10 Idle roller Applies a pressure to the paper exit roller to transport paper.
11 Paper exit roller Transports paper to ADU.
12 Lower transport roller Transports paper to ADU.
13 Idle roller Applies a pressure to the upper transport roller to transport paper.
14 Idle roller Applies a pressure to the upper reverse roller to transport paper.
123
4
5
14
13
12
6
7
8
9
10
11

AR-RB1 DESCRIPTION OF OPERATION 4 - 1
[4] DESCRIPTION OF OPERATION
[Outline of operation]
•The operations include straight delivery, reverse tray delivery, reverse finisher delivery, and ADU delivery (when AR-D19 is installed) operations.
[Sensor and solenoid operation]
BIM (paper in-motor) changes the transport path of the fed paper when BGSOL (gate solenoid) straight delivery is ON and all other operations are
OFF.
•In the case of straight delivery, BPOD (paper discharge detect) detects the passing paper.
•In the case of reverse tray delivery operation, the paper-in motor and the upper reverse motor operates, the paper is fed, and BPPD1 is detected.
Afterward, the upper reverse motor stops, and the paper transport stops.
Next, the upper reverse motor rotates in reverse to transport paper to the direction of paper exit tray.
After BPOD (paper discharge detect) detects the passing paper, it turns off the upper reverse motor.
•In the case of reverse finisher delivery operation, the same as reverse tray delivery operation.
•In the case of ADU operation, the lower reverse motor operates, and the paper being transported to the reverse roller is detected by BPRD.
After being detected, the lower reverse motor stops, then it rotates in reverse, and the paper is transported to ADU.
After BPPD2 detects the passing paper, it turns off the motor.
27
29
+24V
+5V
31
GND
17
19
BRM/A
BRM/B
21
23
BPOWD
BTMA
25
BTMB
7
9
/BDD2
BFM
11
13
BIMA
BIMB
15
Vref1
1
3
/BPOD
/BPPD1
5
/BPRD
28
30
+24V
GND
32 /BYSET
18
20
BRMA
BRMB
22
24
BTM/A
BTM/B
26 +24V
8
10
BGSOL
BIM/A
12
14
BIM/B
BPOWD2
16 Vref2
2
4
/BPFD
/BPPD2
6/BDD1
9
GND
87
/BPOD +5V
65
GND /BPFD
4
+5V
6
GND
54
/BPRD +5V
32
GND /BPPD2
1
+5V
CN-H (6pin)
CN-E (3pin) CN-D (6pin) CN-C (8pin)
CN-G (9pin) CN-F (10pin)
CN-A (32pin)
BY drive PWB
Desk control PWB
CN-G (32pin)
1
2
5
3
4
6
BTM/B
+24V
+24V
BTMB
BTMA
BTM/A
1
2
5
3
4
6
BIM/B
+24V
+24V
BIMB
BIMA
BIM/A
1
2
5
3
4
6
BRM/B
+24V
+24V
BRMB
BRMA
BRM/A
1
2
3
+5V
/BPPD1
GND
123 123
1
2
+24V
/BGSOL
ADU
BRM
BPPD2
BPPD1
BGSOL
BPRD
BTM
BIM
BPODBPFD Paper feed motor
Upper turnover
motor
Transport of
paper
detected
Lower turnover
motor Presence of
paper in reverse
section detected
Transport of
paper detected

AR-RB1 DESCRIPTION OF OPERATION 4 - 2
(1) Initial operation
When the power to the copier is turned on, in order to confirm whether
or not there is paper in the transport path, the paper input motor, upper
turnover motor and lower turnover motor revolve for a predetermined
time.
Even after the predetermined time has passed, if all the transport sen-
sors are OFF and it is determined that there is no paper in the trans-
port path, if within a given period of time at least one transport sensor
turned ON, it is interpreted as paper being present in the transport path
(paper jam).
(2) Straight delivery operation
In this operation, the paper discharged from the copier is sent directly
to the paper exit tray or transported to the finisher.
When the paper input motor and upper turnover motor revolve, the
paper input roller and delivery roller rotate in the directions as shown in
the figure below to discharge the paper.
If the paper is delivered to the finisher, it is transported at the same
speed at which it is discharged from the copier.
As the paper is discharged to the paper exit tray, when the trailing
edge reaches a point 50mm from the delivery roller on the copier side,
the speed of the delivery roller increases, and the paper is discharged
to the tray.
Unit: mm/s
Sensor input, motor output, solenoid output timing is as below.
Paper input motor
BPOD
BPPD1
BPRD
BPPD2
Upper turnover motor
Lower turnover motor
Paper kind Copier process
speed
RB1 tray delivery
speed
Thick paper 2 58.5 58.5
Envelope 117 117
OHP (priority: quality) 58.5 120
OHP (priority: speed) 117 160
Paper input roller
Delivery roller
BPOD
(Paper exit sensor)
BIM
(Paper-in motor)
BRM
(Upper reverse motor)
Process speed
BGSOL
(Gate solenoid)
Delivery speed
(Direction of
paper-in)
(Direction of
paper-out)

AR-RB1 DESCRIPTION OF OPERATION 4 - 3
(3) Reverse tray delivery operation
A. When paper length is 249mm or less (letter size or less)
(Both the paper input motor and upper turnover motor operate)
The relation between the process speed and the transport speed in
RB1 is as follow.
Unit: mm/s
Sensor input, motor output, solenoid output timing is as below.
Processing speed
The paper input motor and
upper turnover motor are
caused to turn in time with the
copier processing speed, thus
transporting the paper.
When the trailing edge of the paper
reaches a point 13mm from the copier
POD off, the transport speed in RB1
is accelerated.
Trailing edge of paper reaches
point 13mm from POD off
Transport speed
(high speed)
Transport speed
(high speed)
Transport
speed
(low speed)
When the trailing edge of
the paper reaches the upper
reverse stop point, the
motor stops.
Motor stop
(paper stop)
Motor stop
(discharge complete)
The upper turnover motor is
caused to revolve in the paper
delivery direction, and the paper
is discharged.
When the trailing edge of the paper
reaches a point 50mm before the
delivery roller, the transport speed
decreases.
Trailing edge of paper
reaches point 50mm
before delivery roller
After the trailing edge of the paper
passes the delivery roller, the
upper turnover motor stops.
Paper kind
Copier
process
speed
RB1transport
speed
(high speed)
Paper size
RB1 transport
speed
(low speed)
Normal paper 117/140 550 A3/A3W
/EXTRA
450
A4R 430
A4/B5/B5R 400
B4/A5 320
Thick paper 1 58.5 195 All size 195
POD
(Paper exit sensor)
BPPD1
(Transport sensor 1)
BPOD
(Paper-out sensor)
BIM
(Paper-in motor)
BRM
(Upper reverse motor)
BGSOL
(Gate solenoid)
(Direction of paper-out)
(Direction of paper-in)
Process speed
High speed
High speed
Low speed

AR-RB1 DESCRIPTION OF OPERATION 4 - 4
B. When the paper length is 250mm or more (B5R or more)
(The paper input motor, upper turnover motor and lower turnover motor all operate.)
As for the relation between the process speed and the transport speed
in RB1, refer to the table (3)-A.
Sensor input, motor output, solenoid output timing is as below.
Processing speed
The paper input motor and
upper turnover motor are
caused to turn in time with the
copier processing speed, thus
transporting the paper.
When the trailing edge of the paper
reaches a point 13mm from the copier
POD off, the transport speed in RB1
is accelerated.
Trailing edge of paper reaches
point 13mm from POD off
Transport speed
(high speed)
Transport speed
(high speed)
When the trailing edge of the
paper reaches the upper reverse
stop point, the upper turnover
motor and the lower turnover
motor stop.
Motor stop
(paper stop)
The upper turnover motor and the
lower turnover motor are caused to
revolve in the paper delivery direction,
and the paper is discharged.
The lower reverse motor stops at
BPPD1 off, when the trailing edge of the
paper reaches a point 50mm before the
delivery roller, the transport speed
decreases.
Trailing edge of paper
reaches point 50mm
before delivery roller
After the trailing edge of the paper
passes the delivery roller, the
upper turnover motor stops.
Transport
speed
(low speed) Lower
turnover
motor stop
Motor stop
(discharge complete)
POD
(Paper exit
sensor)
BPPD1
(Transport
sensor 1)
BPRD
(Reverse section
detection sensor)
BPOD
(Paper-out sensor)
BIM
(Paper-in motor)
BRM
(Upper reverse
motor)
(Direction of paper-in)
(Direction of paper-out)
(Direction of paper-in)
(Direction of paper-out)
BTM
(Lower reverse
motor)
BGSOL
(Gate solenoid)
Process speed
Process speed
High speed
High speed
High speed
High speed
Low speed

AR-RB1 DESCRIPTION OF OPERATION 4 - 5
(4) Reverse finisher delivery operation
A. When paper length is 249mm or less (letter size or less)
(Both the paper input motor and upper turnover motor operate)
Table showing relation between the processing speed and the trans-
port speed in RB1
Unit: mm/s
Sensor input, motor output, solenoid output timing is as below.
B. When the paper length is 250mm or more
(B5R or more)
(The paper input motor, upper turnover motor and lower turnover motor
all operate.)
Other than this, it is controlled by the same conditions as for letter-size
or less.
The paper input motor and
upper turnover motor are
caused to turn in time with the
copier processing speed, thus
transporting the paper.
Processing speed
When the trailing edge of the paper
reaches a point 13mm from the copier
POD off, the transport speed in RB1
is accelerated.
Trailing edge of paper reaches
point 13mm from POD off
When the trailing edge of
the paper reaches the upper
reverse stop point, the
motor stops.
Transport speed
(high speed)
Motor stop
(paper stop)
The upper turnover motor is
caused to revolve in the paper
delivery direction, and the paper
is discharged.
Just before the leading edge of the
paper reaches the first roller of the
finisher, the transport speed decreases.
After the trailing edge of the paper
passes the delivery roller, the
upper turnover motor stops.
Transport speed
(high speed)
Motor stop
(discharge
complete)
Finisher
No. 1 roller
Transport
speed
(low speed)
Copier processing
speed
RB1 transport speed
(high)
RB1 transport speed
(Finisher speed)
58.5 195 195
117 550 450
140 550 550
POD
(Paper exit sensor)
BPPD1
(Transport sensor 1)
BPOD
(Paper-out sensor)
BIM
(Paper-in motor)
BRM
(Upper reverse
motor)
(Direction of paper-in)
(Direction of paper-out)
BGSOL
(Gate solenoid)
Process speed
Finisher speed
High speed
High speed

AR-RB1 DESCRIPTION OF OPERATION 4 - 6
(5) ADU delivery operation (AR-D19 the installed)
Table showing relation between the processing speed and the trans-
port speed in RB1
Unit: mm/s
Sensor input, motor output, solenoid output timing is as below.
Processing speed
The paper input motor and
upper turnover motor are
caused to turn in time with the
copier processing speed, thus
transporting the paper.
When the trailing edge of the paper
reaches a point 13mm from the copier
POD off, the transport speed in RB1
is accelerated.
Trailing edge of paper reaches
point 13mm from POD off
Transport speed
(high speed)
Transport speed
(high speed)
Transport speed
(high speed)
Lower reverse
stop point
When the trailing edge of the
paper reaches the lower reverse
stop point, the motor stops.
The lower turnover motor is caused to
revolve in the direction of the ADU,
discharging the paper.
When the trailing edge of the paper
passes the delivery roller, the
motor stops.
Copier processing speed RB1 transport speed (high)
58.5 195
117 550
140 550
POD
(Paper exit sensor)
BPPD1
(Transport sensor 1)
BPRD
(Reverse section
detection sensor)
BPPD2
(Transport sensor 2)
BIM
(Paper-in motor)
(Direction of paper-in)
(Direction of paper-out)
(Direction of paper-in)
(Direction of paper-out)
BRM
(Upper reverse
motor)
BTM
(Lower reverse
motor)
BGSOL
(Gate solenoid)
Process speed
High speed
High speed
High speed

AR-RB1 DISASSEMBLY, ASSEMBLY AND MAINTENANCE 5 - 1
[5] DISASSEMBLY, ASSEMBLY AND MAINTENANCE
1. Maintenance system table
✕: Check (for cleaning, replacement or adjustment as necessary) ❍: Clean ▲: Replace ∆: Adjust ✩: Lubricate ❏: Relocate
Unit name No. Part name When
requested 50K 100K 150K 200K 250K 300K 350K 400K Remarks
Transport
section
1 Transport rollers ❍ ❍❍❍❍❍❍❍❍
2Rollers ❍ ❍❍❍❍❍❍❍❍
3 Transport paper guides ❍ ❍❍❍❍❍❍❍❍
Drive unit 4 Gears ✕ ✕✕✕✕(designated spots)
5Belts ✕✕
Others 6 Sensors ✕ ✕✕✕✕
7 Discharge brushes ✕ ✕✕✕✕
NOTE: When to replace:Check the counter value on the respective paper feed entrances.
Paper feed rollers/torque limiter parts: 100K or 2 years.
1
1
2
2
2
1
1
3
3
4
4
5
2
2
2
6
7
6
6
5

AR-RB1 DISASSEMBLY, ASSEMBLY AND MAINTENANCE 5 - 2
2. Maintenance
A. Transport section
✕: Check (for cleaning, replacement or adjustment as necessary) ❍: Clean ▲: Replace ∆: Adjust ✩: Lubricate ❏: Relocate
(1) All transport rollers
a. Copier
1) Detach the connector and remove the screws. Remove (A) the
bypass drive PWB.
<1> Delivery roller
1) Open (A) the left door.
2) Open (B) the upper open/close unit.
3) Remove the screws, and remove (C) the rear casing.
4) Remove the screws, and remove (D) the front casing.
5) Remove the E-rings, gears and bearings, and take out (E) the
delivery roller.
<2> Paper input roller
1) Remove the rear and front casings.
2) Detach the connector, remove the screws, and take out (A) the
paper input motor unit.
3) Remove the E-rings, gears and bearings, and take out (B) the
paper input roller.
Unit name No. Part name When
requested 50K 100K 150K 200K 250K 300K 350K 400K Remarks
Transport
section
1 Transport rollers ❍ ❍❍❍❍❍❍❍❍
2Rollers ❍ ❍❍❍❍❍❍❍❍
3 Transport paper guides ❍ ❍❍❍❍❍❍❍❍
A
A
B
D
C
E
A
B

AR-RB1 DISASSEMBLY, ASSEMBLY AND MAINTENANCE 5 - 3
<3> Upper turnover roller
1) Remove the rear and front casings.
2) Remove the bypass drive PWB.
3) Remove the E-ring, Mylar, belt, pulley, gears, pins and bearings,
and take out (B) the upper turnover roller.
<4>Lower turnover roller
1) Remove the rear and front casings.
2) Remove (A) the E-ring, and slide the bearing over.
3) Remove the belt, and take out the lower turnover roller unit.
4) Remove the E-rings, pulley, pin, Mylar and bearings from (B) the
lower turnover roller.
<5> Upper transport roller
1) Remove the rear and front casings.
2) Remove the E-rings, belt, pulley, pin and bearings.
3) Remove (A) the upper transport roller.
<6> Lower transport roller
1) Remove the rear and front casings.
2) Remove (A) the E-ring, belt and pulley.
3) Remove (B) the E-rings, slide the bearing over, and take out the
lower transport roller unit.
4) Remove the pin and bearing from (C) the lower transport roller.
<7> Delivery roller
1) Remove the rear and front casings.
2) Remove the screws, remove (A), and take out (B) the left door unit.
3) Remove the E-rings, belt, pulley, pin and bearings. Take out (C)
the delivery roller.
B
A
A
B
A
A
B
B
C
A
B
C

AR-RB1 DISASSEMBLY, ASSEMBLY AND MAINTENANCE 5 - 4
(2) Rollers
a. Paper delivery cabinet
1) Remove the delivery roller.
2) Remove (A) the screw, remove (B) the ADU open/closed sensor
mounting plate, and detach the connector.
3) Remove the screws, and take out (C) the paper delivery cabinet
unit.
(3) Transport paper guides
B. Drive section
✕: Check (for cleaning, replacement or adjustment as necessary) ❍: Clean ▲: Replace ∆: Adjust ✩: Lubricate ❏: Relocate
(1) Gears
a. Copier
1) Remove the rear casing. 2) Remove the front gears.
A
B
C
Unit name No. Part name When
requested 50K 100K 150K 200K 250K 300K 350K 400K Remarks
Drive unit 1 Gears ✕ ✕✕✕✕(designated spots)
2Belts ✕✕

AR-RB1 DISASSEMBLY, ASSEMBLY AND MAINTENANCE 5 - 5
(2) Belts
a. Copier
1) Remove the rear casing.
C. Others
✕: Check (for cleaning, replacement or adjustment as necessary) ❍: Clean ▲: Replace ∆: Adjust ✩: Lubricate ❏: Relocate
(1) Sensors
a. Copier
1) Remove the screw, and remove the sensor holder.
2) Remove the screws, and remove the sensor covers.
b. Upper open/closed unit
1) Open the upper open/closed unit, remove the E-ring and bearing,
and take out (A) the gate unit.
2) Remove the screw, and remove (B) the upper cabinet.
Unit name No. Part name When
requested 50K 100K 150K 200K 250K 300K 350K 400K Remarks
Others 1 Sensors ✕ ✕✕✕✕
2 Discharge brushes ✕ ✕✕✕✕
A
B

AR-RB1 DISASSEMBLY, ASSEMBLY AND MAINTENANCE 5 - 6
c. Paper delivery cabinet unit
1) Remove the rear casing.
2) Open the left door unit, remove the screw, and remove (A) the
ADU open/closed sensor mounting plate.
(2) Discharge brushes
D. Principal parts
(1) Paper input motor
1) Remove the rear casing.
2) Detach the connector, remove the screws, and remove (A) the
paper input motor.
(2) Upper reverse transport motor/Lower reverse
transport motor
1) Remove the rear casing.
2) Detach the harness from the clamp.
3) Remove the connector, remove the screws, and take out the upper
reverse transport motor unit/the lower reverse transport motor unit.
4) Remove the screws, and remove (A) the upper reverse transport
motor/(B) the lower reverse transport motor.
(3) SF pressure release solenoid
1) Remove the rear and front casings.
2) Remove the delivery roller, and take out the paper delivery cabinet
unit.
3) Remove the paper input motor unit.
4) Detach the connector, remove the screws and spring, and remove
(A) the SF pressure release solenoid.
(4) Bypass drive PWB
1) Detach the connector, remove the screws, and take out (A) the
bypass drive PWB.
A
B
C
A
A
B
A
A

AR-RB1 ELECTRICAL SECTION 6 - 1
BIMB /BDD1 N.C. /BPPD2 BRM/A Vref1 BIM/A /BPRD BFM /BPPD1 BRMA /BDD2 /BPOD BIM/B BIMA Vref2 /BPFD BPOWD2 N.C. BGSOL
10 17 18 12 7 1 16 9 14 19 20 3 11 8 5 15 2 13 4 6
XADRP-40V
32 39 21
GND
25 29 26
BRMB
31
BPOWD
33 30
BTMA
40 38 35 27
BTM/B
36
BTM/A
34
+24V28
24
BTMB
23
BRM/B
22 37
12 19 1 5 9 6 11 13 10 20 18 15 7 16 14 8 4 3 2 17 36 23 31 27 24 38 32 29 30 34 37 33 39 35 26 40 28 25 22 21
+24V +24V +5V GND /BYSET F.G. F.G.
BIM/A /BFM BIMB
BRMA
/BPOD BIMA /BPFD /BPPD2 /BPRD /BPPD1 /BDD2 BIM/B /BDD1 /BGSOL
BRM/A BRM/B BRMB
8 5 2 10 4 2 6
4
2 3 2
3
7
1
8 4
6
1
+24V 1
CN-B
+24V 2 +24V 5 +24V 7
CN-C
+24V 2 +24V 5
+5V 1
3GND
CN-E
1+5V 3 5
GND +5V
6 8
GND +5V 9 GND
CN-F
+5V 1
3GND
+5V 4
6GND
+5V 7
9GND
CN-G CN-D
CN-H
/BFM2 +24V1 BFM
4
+24V
BIM
+24V BIM/A
3 5 2
BIMB BIM/B BIMA
1 6
4 5 1 3 6 2 2 /BGSOL
+24V1 BGSOL
BRM
3 1 2 /BPPD1
+5V GND
BPPD1
1 3 2 /BPPD2
+5V GND
BPPD2
1 3 2 /BPRD
+5V GND
BPRD
/BDD2
1 GND 3 +5V 2 BDD2
BDD1
+5V GND1
3 2 /BDD1
BPFD
1 3 +5V 2 /BPFD
GND
BPOD
1 3 +5V 2 /BPOD
GND
AR-RB1
B2B-PH-K-S B8B-PH-K-S
B6B-PH-K-R
B3B-PH-K-S B10B-PH-K-S B9B-PH-K-S B6B-PH-K-S
BY DRIVE PWB
4 1BTM/B
BTMB +24V
2 3
BTM/A +24V
6
BTMA
5
BTM
29 15 4
BIMA Vref2 Vref1 +24V BRM/A
25 14 7
BPOWD2
22
BRMA GND
28 16
+5V
20 17 32 19 8 12 2 5
BIM/A10
26
BTMB
30
/BPPD1
11 23 CN-A
BGSOL BTM/B /BDD2 +24V
18
BRMB /BPPD2 BPOWD /BPRD /BPOD /BDD1 +24V BFM /BPFD
13 1 24
GND31
6
BIM/B BTMA BIMB BTM/A
27 S32B-PHDSS 21 3
BRM/B
9
GND(/BYSET)
N.C.
EXIN1 EXIN2 GND GND
SMP-06V-BC SMR-06V-B
AR-D17/18/19
[6] ELECTRICAL SECTION (1) Actual wiring chart