Ricoh ST23 Manuel utilisateur

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)

Sorter Stapler

OVERALL MACHINE INFORMATION 6 March 1992

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

6 March 1992 OVERALL MACHINE INFORMATION

1.2 MECHANICAL COMPONENT LAYOUT

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

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)

6 March 1992 OVERALL MACHINE INFORMATION

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

OVERALL MACHINE INFORMATION 6 March 1992

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

6 March 1992 OVERALL MACHINE INFORMATION

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

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]

6 March 1992 OVERALL MACHINE INFORMATION

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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