MOTORS
[A]
[C]
Rear cover (1.1)
Motor assembly [A] ( x 4, x 2)
Upper transport motor [B] ( x 4)
Exit motor [C] ( x 4)
[B]
[A]
Main PCB (1.1)
Lower transport motor [A] ( x 2, x 1)
[A]
[C]
Front cover and inner cover (1.2)
Upper side cover [A] ( x 2)
1000-Sheet Finisher SR790/SR3090
B408/D588
Upper tray [B] ( x 1)
[B]
[D]
Lower side cover [C] ( x 2)
Loosen the 2 screws [D].
Lower the lower tray guide plate [E].
Guide plate [F] ( x 4)
[E]
[F]
MOTORS AND SENSORS
x
[A]
Stack height sensor assembly [A] ( 1)
Stack height sensor [B] ( x 1)
[B]
1. Stapler tray paper sensor [A] ( x 1)
[A]
1. Lower tray lift motor [A] ( x 2, x 1)
[A]
1000-Sheet Finisher SR790/SR3090
B408/D588
[A]
Stack feed-out motor [A] ( x 2, x 1)
JAM DETECTION
Mode | Jam | Content | |
Shift | Staple | ||
| | Entrance sensor: On check | The entrance sensor does not turn on within the normal time after the main machine exit sensor turns on |
| | Entrance sensor: Off check | The entrance sensor does not turn off within the normal time after it turns on. |
| Lower tray exit sensor: On check | The lower tray exit sensor does not turn on within the normal time after the entrance sensor turns off. | |
| Tray exit sensor: Off check | The tray exit sensor does not turn off within the normal time after it turns on. | |
| Stapler tray entrance sensor: On check | The stapler tray entrance sensor does not switch on within the normal time after the entrance sensor switched on. | |
| Stapler tray entrance sensor: Off check | The staple tray entrance sensor does not turn off within the normal time after it turns on. | |
| Lower tray exit sensor: On check | The lower exit sensor does not turn on after the feed-out pawl feeds out the outputs. | |
| Lower tray exit sensor: Off check | The lower exit sensor turns on when the feed-out pawl returns to its home position after feeding out the outputs. | |
DIP SWITCH SETTINGS
The DIP switches should not be set to any combination other than those listed in the table below.
Description | ||
0 | 0 | Normal operation mode (Default) |
1 | 0 | Packing mode. |
SW100
1 2
Before packing the machine, do the following: Set switch 1 to 1 then back to zero. The lower tray moves to the lowest position. Then turn off the main switch.
1000-Sheet Finisher SR790/SR3090
B408/D588
After unpacking the machine, do the following: After turning the main switch back on, the lower tray returns to home position automatically.
GENERAL LAYOUT
2 3
1
13 4
5
6
12 7
11
10
8
9
Upper Tray
Upper Tray Exit Roller
Entrance Roller
Tray Junction Gate
Upper Transport Roller
Stapler Junction Gate
Lower Transport Rollers
Stapler
Stack Feed-out Belt
Positioning Roller
Shift Roller
Lower Tray
Lower Tray Exit Roller
ELECTRICAL COMPONENT LAYOUT
1 2 3
11
4
5
10
9 8 7 6 12
1000-Sheet Finisher SR790/SR3090
B408/D588
19 13
18 14
20
21 17
16 15
Upper Cover Switch
Paper Limit Sensor
Entrance Sensor
Exit Guide Plate Motor
Exit Guide Plate HP Sensor
Front Door Safety Switch
Stack Height Sensor
Lower Tray Exit Sensor
Lower Tray Upper Limit Switch
Shift HP Sensor
Shift Motor
Jogger Fence HP Sensor
Positioning Roller Solenoid
Stapler HP Sensor
Stapler Tray Entrance Sensor
Stapler Tray Paper Sensor
Stapler Hammer Motor
Staple Sheet Sensor
Stack Feed-out Belt HP Sensor
Stapler Rotation HP Sensor
Staple Sensor
22
24
32
31
30
29
28
27 23
26
25
Tray Junction Gate Solenoid
Lower Tray Lift Motor
Lower Tray Lower Limit Sensor
Stapler Motor
Jogger Fence Motor
Stack Feed-out Motor
Main Board
Lower Transport Motor
Stapler Junction Gate Solenoid
Exit Motor
Upper Transport Motor
ELECTRICAL COMPONENT DESCRIPTION
1000-Sheet Finisher SR790/SR3090
B408/D588
Symbol | Name | Function | Index No. |
Motors | |||
M1 | Upper Transport | Drives the entrance roller and upper transport rollers. | 32 |
M2 | Lower Transport | Drives the lower transport rollers and the positioning roller. | 29 |
M3 | Jogger Fence | Drives the jogger fences. | 26 |
M4 | Staple Hammer | Drives the staple hammer. | 17 |
M5 | Stack Feed-out | Drives the stack feed-out belt. | 27 |
M6 | Exit Guide Plate | Opens and closes the exit guide plate. | 4 |
M7 | Exit | Drives the exit roller. | 31 |
M8 | Lower Tray Lift | Moves the lower tray up or down. | 23 |
M9 | Shift | Moves the shift roller from side to side. | 11 |
M10 | Stapler | Moves the stapler unit from side to side. | 25 |
Sensors | |||
S1 | Entrance | Detects copy paper entering the finisher and checks for misfeeds. | 3 |
S2 | Paper Limit | Detects when the paper stack height in the upper tray is at its limit. | 2 |
S3 | Jogger Fence HP | Detects when the jogger fence is at home position. | 12 |
S4 | Shift HP | Detects when the shift roller is at home position. | 10 |
S5 | Stack Feed-out Belt HP | Detects when the stack feed-out belt is at home position. | 19 |
S6 | Stapler HP | Detects when the stapler is at home position. | 14 |
S7 | Exit Guide Plate HP | Detects when the exit guide plate is at home position. | 5 |
S8 | Stapler Tray Entrance | Detects copy paper entering the stapler tray and checks for misfeeds. | 15 |
S9 | Lower Tray Exit | Checks for misfeeds. | 8 |
S10 | Stack Height | Detects the top of the copy paper stack. | 7 |
S11 | Lower Tray Lower Limit | Detects when the lower tray is at its lower limit position. | 24 |
S12 | Stapler Tray Paper | Detects when there is copy paper in the stapler tray. | 16 |
S13 | Staple Sheet | Detects the leading edge of the staple sheet. | 18 |
S14 | Stapler Rotation HP | Detects when the staple hammer is at home position. | 20 |
S15 | Staple | Detects whether there are staples in the staple cartridge. | 21 |
Solenoids | |||
SOL1 | Tray Junction Gate | Drives the tray junction gate. | 22 |
SOL2 | Stapler Junction Gate | Drives the stapler junction gate. | 30 |
Symbol | Name | Function | Index No. |
SOL3 | Positioning Roller | Moves the positioning roller. | 13 |
Switches | |||
SW1 | Lower Tray Upper Limit | Detects when the lower tray is at its upper limit position. | 9 |
SW2 | Front Door Safety | Cuts the dc power when the front door is opened. | 6 |
SW3 | Upper Cover | Cuts the dc power when the upper cover is opened. | 1 |
PCBs | |||
PCB1 | Main | Controls the finisher and communicates with the copier/printer. | 28 |
DRIVE LAYOUT
1
2
5
4
3
6
7
9
1000-Sheet Finisher SR790/SR3090
B408/D588
8
Exit Motor
Upper Transport Motor
Lower Transport Motor
Shift Motor
Exit Guide Plate Motor
Lower Tray Lift Motor
Stack Feed-out Motor
Jogger Motor
Stapler Motor
JUNCTION GATES
[A
[C]
[B]
[D
]
]
Depending on the finishing mode, the copies are directed up, straight through, or down by the combination of the tray junction gate [A] and stapler junction gate [B]. These gates are controlled by the tray junction gate solenoid [C] and stapler junction gate solenoid [D].
Upper Tray Mode
The tray junction gate solenoid remains off. The copies go up to the upper tray.
Sort/Stack Mode
The tray junction gate solenoid turns on and the stapler junction gate solenoid remains off. The copies are sent to the lower tray directly.
Staple Mode
The tray junction gate solenoid and the stapler junction gate solenoid both turn on. The copies go down to the jogger unit.
UPPER TRAY
[A]
1000-Sheet Finisher SR790/SR3090
B408/D588
When the paper limit sensor [A] switches on during feed-out for each of three consecutive sheets of paper, paper overflow is detected.
LOWER TRAY UP/DOWN MECHANISMS
[G]
[B]
[C]
[F]
[A]
[D]
[E]
The vertical position of the lower tray [A] depends on the height of the copied paper stack on the lower tray. The stack height sensor feeler [B] contacts the top of the stack, and the lower tray lift motor [C] controls the tray height.
When the lower tray reaches its lowest possible position, the actuator [D] turns on the lower tray lower limit sensor [E], and copying stops.
Tray Up
When the copy paper on the tray is removed, the stack height sensor [F] turns off and the tray lifts up. Then, the tray stops when the sensor turns on again (the tray pushes up the feeler).
If the stack height sensor fails, the lower tray upper limit switch [G] detects the tray and stops the motor. This is a safety measure against stack height sensor failure.
Sort/Stack Mode (Tray Down)
Every five sheets of paper, the tray goes down until the sensor turns off again. Then, it goes up until the sensor is on again.
Staple Mode (Tray Down)
After a stapled copy is fed out, the tray goes up for 220 ms and stops for 300 ms. Then, it goes down for 1 second, waits for 500 ms, then goes up until the sensor turns on.
PAPER SHIFT MECHANISM
[F] [C]
[B]
[A]
[D]
[E]
1000-Sheet Finisher SR790/SR3090
B408/D588
In the sort/stack mode, the shift roller [A] moves from side to side to separate the sets of copies.
The horizontal position of the shift roller is controlled by the shift motor [B] and the shift gear disk [C]. After the trailing edge of the copy passes the upper transport roller, the shift motor turns on, driving the shift gear disk and the link [D].
After the paper is delivered to the lower tray [E], the shift roller moves to its home position, which is detected by the shift HP sensor [F]. Then, when the trailing edge of the next copy passes the upper transport roller, the shift roller shifts again. This operation is done every sheet.
When the trailing edge of each page in the next set of copies passes the upper transport roller, the shift roller shifts in the opposite direction.
JOGGER UNIT PAPER POSITIONING MECHANISM
[B]
[A
[C]
[D]
[F]
[E]
]
In staple mode, each sheet of copy paper is vertically and horizontally aligned when it arrives in the jogger unit.
For the vertical paper alignment, the positioning roller solenoid [A] turns on shortly after the stapler tray entrance sensor [B] turns off, and the positioning roller [C] pushes the copy against the bottom of the stack stopper [D].
For the horizontal paper alignment, the jogger front fence [E] and the rear fence [F] move to the waiting position, which is 18 mm away from the side of the paper.
When aligning the paper vertically, the jogger fence moves in 14 mm from the waiting position. After the vertical position has been aligned, the jogger fence pushes the paper 4 mm against the rear fence to align the paper horizontally. Then the jogger fence moves back to the previous position.
EXIT GUIDE PLATE
[B] [C]
[A]
[D]
1000-Sheet Finisher SR790/SR3090
B408/D588
When stacking a large size of paper (such as A3, DLT) in the jogger unit, the leading edge of the paper reaches the exit rollers. To prevent the paper from running into the exit rollers and not being aligned correctly, the exit guide plate [A] is moved up to make a gap between the exit rollers. This operation is done for all paper sizes, but is only needed for the larger sizes.
The exit guide plate motor [B] and exit roller release cam [C] control the exit guide plate movement. When the exit guide plate motor starts, the cam turns and the exit guide plate moves up. When stapling is finished, the exit guide plate motor turns on again to close the exit guide plate. When the exit guide plate HP sensor [D] turns on, the motor stops.
STAPLER MECHANISM
[E] [B]
[D]
[C]
[A]
The staple hammer motor [A] drives the staple hammer.
The staple sheet sensor [B] detects the leading edge of the staple sheet at the stapling position to prevent the hammer from operating if there are no staples at the stapling position.
If there is no staple cartridge in the stapler unit or no staples in the staple cartridge, staple end is indicated on the operation panel. The stapler sensor [C] detects this.
The stapler rotation HP sensor [D] checks whether the staple hammer mechanism returns to home position after each stack has been stapled.
When excessive load is applied to the staple hammer motor, the copier detects a staple jam. When a staple jam has occurred, the jammed staple is inside the staple cartridge [E]. Therefore, the jammed staple can be removed easily after pulling out the staple cartridge.
STAPLER UNIT MOVEMENT MECHANISM
[A]
[B]
1000-Sheet Finisher SR790/SR3090
B408/D588
The stapler motor moves the stapler [A] from side to side. After the start key is pressed, the stapler moves from its home position to the stapling position.
If two-staple-position mode is selected, the stapler moves to the front stapling position first, then moves to the rear stapling position. However, for the next copy set, it staples in the reverse order (at the rear side first, then at the front side).
After the job is completed, the stapler moves back to its home position. The stapler HP sensor [B] detects this.
PAPER FEED-OUT MECHANISM
[A]
[B]
[D
[C]
]
After the copies have been stapled, the stack feed-out motor [A] starts. The pawl
[B] on the stack feed-out belt [C] transports the set of stapled copies up and feeds it to the shift roller. The shift roller takes over stack feed-out after the leading edge reaches this roller.
Just before the stapled stack passes through the lower tray exit sensor, the stack- feed-out motor turns off until the shift rollers have completely fed the stack out to the lower tray. Then, the stack-feed-out motor turns on again until the pawl [B] actuates the stack feed-out belt home position sensor [D].
R EVI SIO N HIS TORY | ||
Page | Date | Added/ Updated/ New |
None | ||
COVERS AND TRAY 1
FRONT AND REAR COVER 1
ORIGINAL TRAY 2
DOCUMENT FEED COMPONENTS 3
PICK-UP ROLLER 3
FEED BELT 4
SEPARATION ROLLER 6
ELECTRICAL COMPONENTS 7
DF DRIVE BOARD 7
ORIGINAL LENGTH SENSORS AND TRAILING EDGE SENSOR 8
ORIGINAL SET, SEPARATION, SKEW CORRECTION AND SCANNING ENTRANCE SENSOR 9
ORIGINAL WIDTH SENSORS 10
REGISTRATION SENSOR 10
ORIGINAL EXIT SENSOR 11
DF POSITION SENSOR 12
COVER SENSOR 12
PICK-UP ROLLER HP AND ORIGINAL STOPPER HP SENSOR 13
STAMP SOLENOID 14
ORIGINAL FEED DRIVE 16
ADF FEED MOTOR 16
ADF INVERTER MOTOR 17
ADF TRANSPORT MOTOR 17
ADF PICK-UP MOTOR 18
COMPONENT LAYOUT 19
MECHANICAL COMPONENT LAYOUT 19
ELECTRICAL COMPONENT LAYOUT 20
Sensors and Drive Components 20
Electrical Component Descriptions 21
DRIVE LAYOUT 23
SM i B802/D630
ADF Feed Motor 24
ADF Transport Motor and ADF Inverter Motor 24
BASIC OPERATION 25
ORIGINAL SIZE DETECTION 25
MIXED ORIGINAL SIZE MODE 27
Document length detection 27
Feed-in cycle 27
Normal feed-in 28
PICK-UP AND SEPARATION 28
SKEW CORRECTION 29
SLIP DETECTION 30
ORIGINAL TRANSPORT AND EXIT 31
Single-Sided Originals 31
Double-Sided Originals 31
Original Sensor 32
CONDITIONS FOR JAM DETECTION 33
DIP SWITCHES 34
Turn off the main power switch and unplug the machine before beginning any of the replacement procedures in this manual.
This manual uses the following symbols.
: See or Refer to
: Screws
: Connector
: Clip ring
: E-ring
: Clamp
ARDF DF3010/ DF3070 (B802/D630)
Open the left cover [A].
Front cover [B] ( x 1, hook x 2)
Rear cover [C] (x 2, hook x 2)
Open the left cover.
Rear cover ( "Front and Rear Cover")
Front cover ( "Front and Rear Cover")
Pivot cover [A] ( x 1)
Original tray [B] (x 1, x 1, x 2)
ARDF DF3010/ DF3070 (B802/D630)
Open the left cover.
Bushings [A] ( x 1 each)
Pick-up roller [B] (gear x 1, one-way gear x 1)
Open the left cover.
Front feed unit cover [A]
Rear feed unit cover [B] (hook x 2)
Feed belt unit [C]
ARDF DF3010/ DF3070 (B802/D630)
Slide the tension plate [D] (hook)
Belt unit cover [E] ( x 1)
Belt tension unit [F]
Feed belt [G]
Open the left cover.
Separation roller cover [A]
Remove the bushing [B] ( x 1).
Slide the separation roller shaft to the front side, and then remove it.
Separation roller [C] ( x 1)
ARDF DF3010/ DF3070 (B802/D630)
Rear cover ("Front and Rear Cover")
DF drive board [A] ( x 4, all s)
Open the left cover.
Remove the tray stopper [A], while pushing the hook with a screw driver.
Open the original tray [B].
Original tray cover [C] ( x 3)
Original trailing edge sensor [D] 
x 1, hook)
Original length sensors [E] 
x 1 each, hook)
ARDF DF3010/ DF3070 (B802/D630)
Open the left cover.
Open the inner upper cover [A] (stepped screw x 3).
Original set sensor [B] ( x 1, hook)
Separation sensor [C] ( x 1, hook)
Skew correction sensor [D] ( x 1, hook)
Scanning entrance sensor [E] ( x 1, hook)
Open the left cover.
Open the inner upper cover ( " Original Set, Separation, Skew Correction and Registration Sensor").
Original width sensor bracket [A] ( x 2, ground cable x 1).
Original width sensors [B] 
x 1 each, hook)
Open the ARDF.
White plate [A] (stud screw x 1)
Registration sensor bracket [B] ( x 1)
Registration sensor [C] ( x 1)
ARDF DF3010/ DF3070 (B802/D630)
Open the left cover.
Open the feed-in guide plate [A].
Guide plate [B] ( x 2, stepped screw x 1; front side)
Original exit sensor [C] ( x 1, hook)
Rear cover ( "Front and Rear Cover")
ARDF drive board ( "ARDF Drive Board")
DF position sensor bracket [A] ( x 1)
DF position sensor [B] ( x 1, hook)
Open the left cover.
Rear cover ( "Front and Rear Cover")
Cover sensor [A] ( x 1, hook)
ARDF DF3010/ DF3070 (B802/D630)
Open the left cover.
Rear cover ( "Front and Rear Cover")
Release the clamp [A] ( x 1), and then slide the harnesses away.
Sensor bracket [B] ( x 1, x 2)
Pick-up roller HP sensor [C] (hook)
Original stopper HP sensor [D] (hook)
Open the left cover.
Remove the platen plate [A].
Stamp solenoid cover [B] ( x 1)
Remove the screw [C] ( x 1).
You cannot remove the stamp solenoid at this time.
Rear cover ( "Front and Rear Cover")
Disconnect the stamp solenoid harness [D].
ADF feed motor ( "ADF Feed Motor")
ARDF DF3010/ DF3070 (B802/D630)
Put the stamp solenoid harness into the cutout [E].
Pull out the stamp solenoid [F]
Rear cover ( "Front and Rear Cover")
Harness guide [A] ( x 2, all s, all s)
Remove the spring [B].
Stay bracket [C] (stepped screw x 1)
Slide the feed motor gear [D] to the left side (seen from the front of the machine), and then remove the timing belt [E].
ADF feed motor bracket [F] ( x 3)
ADF feed motor [G] ( x 1)
ARDF DF3010/ DF3070 (B802/D630)
ADF feed motor ( " ADF Feed Motor")
ADF inverter motor bracket [A] ( x 2, x 1, timing belt)
ADF inverter motor [B] ( x 4)
Rear cover ( "Front and Rear Cover")
Ground cable [A] ( x 1)
ADF transport motor bracket [B] ( x 2, x 1)
ADF transport motor [C] ( x 2)
Rear cover ( "Front and Rear Cover")
Harness guide [A] ( x 2, all s, all s)
Stay bracket [B] (stepped screw x 1)
Release 6 clamps on the ADF pick-up motor bracket [C] ( x 6).
ADF pick-up motor bracket [D] ( x 3,
5. x 1)
6. ADF pick-up motor [E] ( x 2, x 1, timing belt)
ARDF DF3010/ DF3070 (B802/D630)
Original Width Sensor
Skew Correction Roller
Skew Correction Sensor
Separation Sensor
Feed Belt
Separation Roller
Original Set Sensor
Pick-up Roller
Original Length Sensor 1
Original Length Sensor 2
Original Length Sensor 3
Inverter Roller
Junction Gate
Exit Roller
Original Exit Sensor
Transport Roller
Registration Sensor
Registration Roller
Scanning Entrance Sensor
Original Length Sensor 2
Original Length Sensor 4
DF Drive Board
Original Trailing Edge Sensor
Original Set Sensor
Stamp Solenoid
Separation Sensor
Original Exit Sensor
Junction Gate Solenoid
Registration Sensor
Sensors and Drive Components
Original Width Sensors
Scanning Entrance Sensor
Skew Correction Sensor
ADF Transport Motor
Left Cover Sensor
Pick-up Motor
Pick-up Roller HP Sensor
Original Stopper HP Sensor
ADF Inverter Motor
ADF Feed Motor
Original Length Sensor 1
ARDF DF3010/ DF3070 (B802/D630)
Electrical Component Descriptions
Symbol | Name | Function | Index No. |
Motors | |||
- | ADF Feed | Drives the feed belt, separation, pick-up, and reverse table rollers. | 10 |
- | ADF Transport | Drives the transport and exit rollers | 4 |
- | ADF Inverter | Drives the Inverter rollers | 9 |
- | Pick-up Motor | Moves the pick-up roller up and down. | 6 |
Sensors | |||
- | DF Position | Detects whether the DF is lifted or not. | |
- | Skew Correction | Detects the leading edge of the original to turn off the DF feed and transport motors. | 3 |
- | Registration | Detects the original exposure timing, and checks for original misfeeds. | 21 |
- | Cover Sensor | Detects whether the feed-in cover is opened or not. | 4 |
- | Original Width Sensor - S | Detects the original width - S. | 1 |
- | Original Width Sensor - M | Detects the original width - M. | 1 |
- | Original Width Sensor - L | Detects the original width - L. | 1 |
- | Original Width Sensor - LL | Detects the original width - LL. | 1 |
- | Original Length - S | Detects the original length - S. | 11 |
- | Original Length - M | Detects the original length - M. | 12 |
- | Original Length - L | Detects the original length - L. | 13 |
- | Original Set | Detects if an original is on the feed table. | 16 |
- | Original Exit | Detects the leading edge of the original to turn on the junction gate solenoid and checks for original misfeeds. Detects the trailing edge of the original to turn off the transport and feed motor and junction gate solenoid. In single-sided mode, used to detect original misfeeds. | 19 |
- | Original Trailing Edge Sensor | Detects the trailing edge of the last original to stop copy paper feed and to turn off the transport motor, and checks for original misfeeds. | 15 |
- | Separation Sensor | The machine uses this sensor to check if the original has slipped during feed-in, to make sure that original feed starts at the correct time. | 18 |
Solenoids | |||
- | Stamp | Energizes the stamper to mark the original. | 17 |
- | Junction Gate | Opens and closes the junction gate. | 20 |
PCBs | |||
- | DF Drive | Interfaces the sensor signals with the copier, and transfers the magnetic clutch, solenoid and motor drive signals from the copier. | 14 |
ARDF DF3010/ DF3070 (B802/D630)
Registration Roller
Transport Roller
Skew Correction Roller
Separation Roller
Feed Belt
ADF Transport Motor
Pick-up Roller
Exit Roller
ADF Inverter Motor
ADF Feed Motor
Inverter Roller