Ricoh ST23 User manual

RICOH ST23
SERVICE MANUAL

1. OVERALL MACHINE INFORMATION
1.1 SPECIFICATIONS
Configuration: Console
Number of Bins: 20 + proof tray
Paper for Proof Tray: Size: Maximum: A3, 11" x 17"
Minimum: A5, 51/2" x 81/2" (sideways)
Weight: 52 g/m2~ 160 g/m2, 14 ~ 43 lb
Paper for Bins: Sort/Stack Mode:
Size Maximum: A3, 11" x 17"
Minimum: A5, 51/2" x 81/2" (sideways)
Weight 52 g/m2~ 160 g/m2, 14 lb ~ 43 lb
Staple Mode:
Size Maximum: A3, 11" x 17"
Minimum: A4, 81/2" x 11"
Weight 64 g/m2~ 80 g/m2, 17 lb ~ 21 lb
Stapler Capacity: From 2 to 50 sheets (80 g/m2, 20 lb)
Bin Capacity: 1 sided copies 2 sided copies
Sort mode 70 sheets 50 sheets
Stack mode 50 sheets 35 sheets
(80 g/m2, 20 lb)
Proof Tray Capacity: 250 sheets (80 g/m2, 20 lb)
20 sheets (translucent paper)
Staple Position: a = b = 5 ±2 mm
Staple Time: Within 1.5 seconds/staple
Staple Replenishment: Cartridge exchange (5,000 pieces/cartridge)
Power Source: 1st sorter: 100 V (from copier)
2nd sorter:120 V (for U.S.A.)
220/230/240 V (for Europe)
ab
Sorter Stapler
OVERALL MACHINE INFORMATION 6 March 1992
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Power Consumption: Maximum: 0.2 kW
Dimensions: (1st sorter only) 580 x 828 x 1063 mm
(22.8" x 32.6" x 41.8")
(1st and 2nd sorter) 1120 x 828 x 1063 mm
(44.1" x 32.6" x 41.8")
Weight: 1st sorter: 98 kg, 216 lb
2nd sorter:90 kg, 198 lb
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1.2 MECHANICAL COMPONENT LAYOUT
12
1
11
10
9
8
7
6
5
4
3
2
1. Staple Unit
2. Proof Tray
3. Bins
4. Jogger
5. Bin Solenoids
6. Side Bar
7. Relay Gate
8. Diagonal Transport Rollers
9. Distribution Rollers
10. By-pass Tray Gate
11. By-pass Tray
12. Bin Gate
Sorter Stapler
OVERALL MACHINE INFORMATION 6 March 1992
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1.3 DRIVE LAYOUT
1. Diagonal Transport Drive Belt
2. Bin Drive Belt (1st to 10th)
3. Main Motor
4. Jogger Unit Drive Belt
5. Staple Unit
6. Side Bar Drive Belt
7. Proof Tray Exit Roller Drive Belt
8. Bin Drive Belt (11th to 20th)
1
6
5
4
7
8
2
3
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1.4 ELECTRICAL COMPONENT DESCRIPTION
Symbol Name Function Index No.
Motors
M1 Main Drives the diagonal transport unit, horizontal
transport unit, and distribution unit through
timing belts. 22
M2 Staple Unit
Positioning Drives the staple unit up or down to the appropriate bin. (dc stepper) 5
M3 Jogger Unit
Positioning Drives the jogger unit up or down to the appropriate bin. (dc stepper) 9
M4 Side bar Drives the side bar side to side according to
the paper size. (dc stepper) 1
M5 Grip Drives the gripper forward into the bin to grip
the copies and bring them to the stapling
position. (dc brush) 12
M6 Staple Feeds the staples and drives the stapler
hammer. (dc brush) 15
M7 Jogger Drives the jogger arm to align the copy. (dc
stepper) 18
M8 By-pass Tray Gate Drives the by-pass tray gate up or down to
switch the paper delivery tray. 36
Switches
SW1 Front Door De-energize the main motor and cuts 24 V
line when the front door is open. 8
SW2 Vertical Transport
Door De-energize the main motor when the vertical transport door is open. 6
SW3 Horizontal
Transport Door Informs the main board if the cover is open. 20
Circuit Boards
PCB1 Main Controls overall sorter stapler functions. 31
PCB2 DC Power Supply Convert ac voltage to 5 V dc and 24 V dc to
supply power to all dc components. 26
PCB3 Bin Solenoid
Control 1 Interfaces between the bin solenoids 1 ~ 10 and the main board. 28
PCB4 Bin Solenoid
Control 2 Interfaces between the bin solenoids 11 ~ 20 and the main board. 30
Solenoids
SOL1~20 Bin Opens and closes the bin gate to direct the
copies into the appropriate bin. 27
SOL21 Grip Opens and closes the bin gate to drive the
grippers to grip copies on the bins. 14
SOL22 Pressure Release Releases pressure of the brake roller when
the paper is fed lengthwise. 38
Sorter Stapler
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Symbol Name Function Index No.
SOL23 Relay Solenoid Turn the relay gate to transport the copy to
the 2nd sorter. 43
Sensors
S1 Entrance Detects paper jams at the entrance of the
diagonal transport unit. 37
S2 Registration Detects paper jams at the horizontal transport
unit. 21
S3 Proof Tray Exit Detects paper jams at the proof tray exit. 2
S4 Bin/Jam (LED) Detects if paper is in the bin.
Detects paper jams at the bin. 3
S5 Bin/Jam (Photo Tr) Detects if paper is in the bin.
Detects paper jams at the bin. 19
S6 Staple Unit H.P. Detects if the staple unit is in the home
position. 4
S7 Jogger Unit H.P. Detects if the jogger unit is in the home
position. 10
S8 Grip H.P. Detects if the gripper is in the home position. 11
S9 Hammer H.P. Detects if the staple hammer is in the home
position. 13
S10 Jogger H.P. Detects if the jogger arm is in the home
position. 17
S11 Side Bar H.P. Detects if the side bar is in the home position. 33
S12 Tray Gate H.P. Detects if the by-pass tray gate is in the home
position. 34
S13 Tray Gate Upper
Position Detects if the by-pass tray gate is in the upper position. 35
S14 Staple Unit
Position Detects the position of the staple unit. 32
S15 Paper Detect if copies are under the hammer. 7
S16 Staple End Detects if the staple is present. 16
S17 Diagonal Transport Door
Open
Detects if the diagonal transport door is open. 39
S18 Timing Supplies timing pulses to the main board. 29
S19 Relay Unit Cover
Open Detects if the relay unit cover is open. 41
S20 Relay Sensor Detects paper jam at the relay unit. 42
Capacitor
C1 Main Motor Protects the PCB’s from induced current. 23
Noise Filter
NF1 Noise Filter Removes electrical noise generated by the
copier and the sorter stapler. 25
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Symbol Name Function Index No.
Relay
RA1 Main Controls main power. 24
Transformer
TF1 2nd Sensor Detects paper jam at the relay unit. 42
Sorter Stapler
OVERALL MACHINE INFORMATION 6 March 1992
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1.5 BASIC OPERATION
Copies exiting the copier enter the sorter or the by-pass tray [A] depending
on the by-pass tray gate [B] position. In normal operation, copies are sent to
the sorter, if paper jams occur in the sorter, the remaining papers in the
copier are fed to the by-pass tray.
If sort/stack mode is not selected, copies are delivered to the proof tray [C]
through the diagonal transport unit [D], the horizontal transport unit [E], and
the distribution unit [F].
When sort/stack mode is selected, copies are delivered to the bins [G] in
order.
The copies in the bins are arranged by the jogger arm [H].
If staple mode is selected, when the last page of the original is delivered to
the 1st bin, the staple unit [I] starts stapling the copies in each bin.
The 1st sorter has capacity to hold 20 sorted copies.
If the 2nd sorter is installed next to the 1st sorter, an additional 20 sorted
copies can be sorted.
After the 20th copy is fed to the distribution unit of the 1st sorter, the relay
gate [J] moves to the upper position and the 21st copy is transported to the
2nd sorter. After the final copy of the designated number has passed under
the relay gate, the relay gate moves down to transport copies to the bins of
the 1st sorter again.
[F]
[H]
[G]
[C]
[I]
[A]
[B]
[D]
[E] [J]
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2. SECTIONAL DESCRIPTION
2.1 PAPER DELIVERY SWITCHING
Depending on the by-pass tray gate [A] position, paper fed from the copier
enters either the sorter or the by-pass tray [B].
The by-pass tray gate is driven by the by-pass tray gate motor [C]. Under
normal operating conditions, the by-pass tray gate is in the home position
(H.P. sensor [D] is actuated) to deliver copies to the sorter. If a sorter paper
jam occurs, the gate rotates on its shaft [E] until the upper tray gate position
sensor [F] is actuated and stops.
[A]
[D]
[F]
[C]
[E] [B]
[F]
Sorter Stapler
SECTIONAL DESCRIPTION 6 March 1992
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