Ricoh FT6645 Service Manual ST24

SORTER STAPLER

(Machine Code: A374)

23 April 1993 SPECIFICATIONS

1. SPECIFICATIONS

Paper Size for Bins: Sort or stack mode:

Maximum: A3, 11" x 17" Minimum: A5, 51/2" x 81/2" lengthwise

Staple mode: Maximum: A3, 11" x 17" Minimum: B5, 81/2" x 11"

Paper Weight for Bins: Sort or stack mode:

52 - 93 g/m2, 14 - 25 lb Staple mode:

52 - 80 g/m2, 14 - 21 lb Number of Bins: 20 bins + proof tray Bin Capacity: Sort mode: 30 sheets (A4, 81/2" x 11")

15 sheets (A3, 11" x 17")

Stack mode: 15 sheets

Proof tray - 100 sheets

(52 – 81 g/m2, 14 – 22 lb)

- 50 sheets (82 – 128 g/m2, 23 – 34 lb)

- 30 sheets (129 – 157 g/m2, 35 – 42 lb)

Stapler Capacity: From 2 to 20 sheets (80 g/m2, 20 lb) (2 to 10

sheets when using A3 /11"x17" or B4/81/2"x14") Stapling Position:

(Horizontal)

a = b

= 6 ± 2 mm = 0.24" ± 0.08"

(Diagonal)

a = 10 ± 2 mm

= 0.39" ± 0.08"

b = 16 ± 2 mm

= 0.63" ± 0.08"

(A374)

Sorter Stapler

SPECIFICATIONS 23 April 1993

Staple Replenishment: Cartridge exchange

(3,000 pieces/cartridge) Power Source: DC 24V, 5V (form the copier) Power Consumption: 50 W Dimensions:

(W x D x H)

412 x 600 x 690 mm

(16.2" x 23.6" x 27.1") Weight: About 25 kg, 55.1 lb

(Main Frame :22 kg, 48.5 lb

Mounting Frame: 3 kg, 6.6)

23 April 1993 COMPONENT LAYOUT

2. COMPONENT LAYOUT

2.1 MECHANICAL COMPONENT LAYOUT

1. Proof Tray

2. Proof Tray Exit Rollers

3. Vertical Transport Rollers

4. Turn Gate

5. Bin Transport Belt

6. Bin Transport roller

7. Bin Exit Roller

8. Stapler

9. Grip Assembly

10. Bin Support Block

11. Bins

12. Suppor t Bin

13. Jogger Bar

(A374)

Sorter Stapler

COMPONENT LAYOUT 23 April 1993

2.2 DRIVE LAY OUT

4. Roller Drive Motor Pulley

11. Bin Lift Motor Pulley

3. Rear Roller Drive Belt

2. Proof Tray Exit Roller Pulley (Rear)

(Proof Tray Exit Roller)

19. Proof Tray Exit Roller Pulley (Front)

18. Front Roller Drive Belt

17. Vertical Transport Drive Pulley

15. Bin Transport Drive Gear

14. Bin Transport Belt s

8. Bin Lift Drive Belt

7. Bin Lift Gears

6. Bin Lift Gear/Pulley

12. Rear Bin Lift Wire

13. Rear Bin Support Block

10. Jogger Motor Pulley

13. Lower Jogger Drive Belt

21. Bin Drive Shaft

20. Front Bin Lift Pully

16. Front Bin Lift Wire

22. Front Bin Support Block

5. Jogger Drive Shaft

1. Upper Jogger Drive Belt

23. Jogger Bar

23 April 1993 COMPONENT LAYOUT

2.3 ELECTRICAL COMPONENT DESCRI P TI ON

Refer to the electrical compone nt layou t on the reverse side of the Poin t to Point (Water proof paper) for symbols and ind ex numbe rs.

Symbol Name Function

Motors

M1 Bin Lift

M2 Jogger

M3 Grip

M4 Stapler Feeds the staples and drives the stapler hammer. 12 M5 Roller Drive

Circuit Board

PCB1 Main Control Controls all sorter stapler functions. 18

Solenoid

SOL 1 Turn Gate

Sensors

S1 Bin Lift Timing -1

S2 Bin Lift Timing -2

S3 Jogger H.P. Detects if the jogger bar is in the home position. 19 S4 Paper Detects if copies are under the hammer. 8

S5 Bin (LED)

Bin (Photo

transistor)

S7 Grip H.P.

S8 Bin H.P. S9 Bin Exit Detects paper jams at the bin exit area. 5

S10 Proof Tray Exit Detects paper jams at the proof tray exit area. 4 S11 Roller Drive Timing

Switches

SW1 Upper Lift Limit

SW2 Wire Tension

Lifts and lowers the bins via a belt, gears, and wires.

Drives the jogger bar to jog the copies against the front side plate.

Drives the grip assembly forward and backward into the bin to grip the copies and bring them to the stapling position.

Drives the proof tray exit and vertical transport rollers, and bin transport belts.

Opens and closes the turn gate to direct the copies into either the proof tray or the bins.

Monitors the rotation of the bin lift motor by detecting the timing disk.

Controls the stop timing of the bin lift motor so that the bin lift timing sensor -1 can detect the timing disk properly.

Detects if there is paper in the bins (light emitting element).

Detects if there is paper in the bins (light receiving element).

Detects if the grip assembly is in the home position.

Detects if all the bins are in the down (home) position.

Monitors the roller drive motor speed by detecting the timing disk.

Stops the bin lift motor when this switch detects the upper limit position of the bins.

Stops the bin lift motor when this switch detects the lower limit position of the bins through the bin lift wire tension.

24 or 25

Index

No.

(A374)

Sorter Stapler

COMPONENT LAYOUT 23 April 1993

Symbol Name Function

SW3 Front Door Cuts the dc 24 V line when the front door is open. 14 SW4 Sorter Stapler Set SW5 Staple End Detects the staple end condition. 10

SW6 Staple Guide Detects if the staple guide plate is closed. 9 SW7 Staple H.P.

Cuts the dc 24 V line when the sorter stapler unit is open.

Detects if the staple hammer is in the home position.

Index

No.

23 April 1993 BASIC OPERATION

3. BASIC OPERATION

3.1 NORMAL MODE AND SORT/STACK MODE

[E]

[C]

[G]

[F]

[B]

[A]

[D]

Copies [A] exiting the copier pass t hro ug h the entra nce guide plates to the turn gate section. The turn gate [B] will send copies eith er to the proof tray or to the bins, depending on the mod e.

- Normal mode - (from the turn gate section to the proof tray) When the S/S CPU receives the motor ON signal from the copier, the roller

drive motor [C] rotates all the rollers in the S/S paper path. At the same time, the turn gate solenoid [D] is energ ized and the turn gat e turns clockwise. The turn gate directs copies to the proo f tray [E] through the vert ical transport and proof tray exit rollers [F,G].

(A374)

Sorter Stapler

BASIC OPERATION 23 April 1993

- Sort/Stack mode - (from the turn gate sectio n to the bins)

[C]

[G]

[H]

[A]

[I]

[B]

[D]

[E]

[F]

The turn gate solen oid [A] stays off and th e turn gate [B] stays up when t he S/S roller drive motor [C] starts rot at ing . The turn gate directs copies downward and the bin transport belt [D] exits copies t o th e bin through the bin transport and bin exit rollers [E, F].

The jogger bar [G] th en moves th e copy towards the front and jogs it ag ainst the front side plate to sq uare the copies.

The bin lift motor [H] turn s on when this jogging operation is almost fin ished and advances the bin one ste p up along the bin cam track [I]. The bin lif t motor stops at the proper timing to position the next bin at the bin exit section. This bin movement is done for each copy in the sort mode and for the final copy of each original in th e stack mo de.

The up and down movement of th e bins in both the sort and stack modes is the same as that for othe r mo ving bin type sorters.

23 April 1993 BASIC OPERATION

3.2 STAPLE MODE

[A]

(Fig. 1)

[B]

(Fig. 2)

(Fig. 3)

(Fig. 4)

When the final set of copies is jogged in the sort mode, th e staple unit staples the stacked copies as follows:

(Figure 1) If the final copy is exited to a bin other than the first one, all the bins lower to the home position (the first bin is positioned at the bin exit sectio n). The jogger bar [A] moves towards the front to jog the copies stacked in the first bin. Then it stops 15mm away from the paper side edge.

(Figure 2) The bins move one step up to place the first bin at the stap ling section.

(Figure 3) The grippers [B] move forward, an d grip the copies.

(Figure 4) The grippers bring the copies up unde rne at h the sta pler. At the same time, the jogger bar jogs the cop ies stacked in the second bin as a prep aration for the next stapling. Then the jog ge r bar ret urns to the position 15mm away from the paper side edge.

(A374)

Sorter Stapler

BASIC OPERATION 23 April 1993

(Fig. 5)

(Fig. 6)

(Figure 5) The stapler staples th e cop ies.

(Figure 6) The copies are pushed back int o the bin. Then the grippe rs ope n an d ret urn to the home position.

The bins move one step up for the next stapling. When the final set of copies is stapled, the bins lower and stop when the final bin used just before the stapling operation is positioned at the bin exit section.

There are two staple modes.

1) Automatic stapling: In ADF/ARDF mode, when the staple mode is selected before pressing the start key, copies will be delivered to each bin an d sta ple d automatically.

2) Manual stapling: In sort mode, after copies are sort ed in the bins, the copie s will be stap led when the staple key is pressed. In sta ck mode, manual stapling is impossible.

23 April 1993 TURN GATE SECTION

4. TURN GATE SECTION

[B]

[A]

[C]

[A]

[D]

The turn gate directs copies to the pro of tray or to the bins depe nding on the mode.

In the normal mode, the turn gate solenoid [A] turns on tog et he r wit h th e roller drive motor when the S/S CPU receives the motor ON signal from the copier. The turn gate [B] rotates clockwise to direct copies upward [C] through the vertical transport section to the proo f tray. The turn gate solenoid stays on during the copy cycle s, and turns off when the proof tray exit sensor detects the trailing ed ge of th e last copy an d the S/S CPU receives the motor OFF signal from the copier.

In the sort, stack, or staple mode, the turn gate solenoid stays off to keep the turn gate up so that copies are direct ed down ward [D] to the bin transport section. However, a certain number of pulse s (d epen din g on the pap er size) af te r t he bin exit sensor detects the leading edge of the copy, the turn gate solenoid turns on. When the trailin g ed ge of th e copy passes the turn gate (50 mse c. after the S/S CPU rece ives th e pa pe r exit signal from the copier), th e tu rn gate solenoid turns of f to direct the next copy downward. This turn gat e movement is to correct the facecurl of the trailing part of the copy. This will flatten the cop y, or give it a slight backcurl, and will help stack and jog copie s in the bins smoothly.

(A374)

Sorter Stapler

[F]

ROLLER DRIVE AND CONTROL 23 April 1993

5. ROLLER DRIVE AND CONTROL

[G]

[E]

[I]

[C]

[J]

[B]

[D]

[K]

[A]

[H]

[L]

The roller drive motor (stepper motor) [A ] drive s the proo f tra y exit rolle rs [B] , vertical transport rolle rs [C], bin tra nsport belts [D], bin transport rollers [E], and bin exit rollers [F] via the front and rear roller drive belt s [G, H], pulle ys, and gears, as shown above.

The roller drive motor turns on when the S/S CPU receives the motor ON signal from the copier. When the proo f tray exit sensor [I] (in the normal mode) or the bin exit sensor [J] (in th e sort /stack/staple mode) detects the trailing edge of the final copy, the S/ S CPU inf orms th e cop ier th rou gh the fiber cable and the interfa ce PCB . Then the copier sends the motor OFF signal to the S/S to stop the roller drive moto r.

The S/S CPU monitors the roller drive motor speed by counting pulses of the timing disc [K] through the roller drive timing sensor [L ].

23 April 1993 ROLLER DRIVE AND CONTROL

The S/S CPU controls the moto r rota tio n at 2 speeds (no rmal an d hig h speeds) to exit copies as fast as possible .

The normal speed depends on the copier’s p ape r tra nsp ort speed. The S/S’s paper transport speed is almost the same but is slightly fast er th an the copier’s.

In the normal mode, the roller drive motor changes the paper tra nsp ort speed from normal to high (500 mm/sec., fixed) when the S/S CPU receives th e paper exit signal from the copier. The roller drive mot or cha ng es the paper transport speed from hig h to norma l 100 millisecon ds af te r t he proo f tra y exit sensor detects the trailin g edge of the cop y.

In the sort/stack/sta ple mo de, the roller drive motor also changes the pap er transport speed from normal to high and then fro m h igh to normal. The timin g is the same as in the normal mode, bu t the bin exit sensor is used to dete ct the trailing edge instead of the pro of tray exit sensor. The high speed is almost double the normal speed, and it changes depending on the paper size (900, 960 , or 1,000 mm/second).

(A374)

Sorter Stapler

[L]

BIN DRIVE AND CONTROL 23 April 1993

6. BIN DRIVE AND CONTROL

[G]

[J]

[F]

[I]

[H]

[M]

[E]

[K]

[B]

[A]

[C]

[D]

[C]

[E]

All the 20 bins [A] and the support bin [B] are piled up on the bin support blocks [C]. The front and rea r bin sup po rt blocks are connected by the bin lif t shafts [D] the ends of which are fixed on the bin lift wires [E] as shown . The bin lift motor [F] (dc motor) drives the bin lift wires through the bin lift drive belt [G], bin lift gears [H], an d th e bin lift gear/pulley [I]. Then the bins are driven up and down along the front an d rea r bin cam tra cks [ J].

The S/S CPU controls the amount of bin lift motor rotation by monitorin g the pulses of the timing disc [K] th rou gh the bin lift timing senso rs 1 and 2 [L,M]. The bin lift timing sensor 1 is used for cou nting the timing pulses. The bin lift timing sensor 2 is used to determine the mot or stop timing so that the edge of the timing disc slots is not positioned at the timing sensor 1.

[C]

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