Ricoh SR800 SPECIFICATIONS

FINISHER

Finisher

31 January 1996 OVERALL MACHINE INFORMATION

1. OVERALL MACHINE INFORMATION

1.1 SPECIFICATION

Paper Size: Maximum: 11" x 17"/A3

Minimum: 5

1/2" x 81/2"/A5 sideways

Paper Weight: Standard copying/Stack mode

14 ~ 43 lb/52 ~ 163 g/m

Staple mode

17 ~ 21 lb/64 ~ 80 g/m

Paper Capacity: Standard copying/Stack mode

2,000 sheets: 8

1/2" x 11"/A4 or smaller size (20 lb/80 g/m

1,000 sheets: 8

1/2" x 14"/B4 or larger size (20 lb/80 g/m

Staple mode See the following table:

Size Number of Originals

2 ~ 10 sheets 100 sets 100 sets 100 sets 11 ~ 20 sheets 100 sets 50 sets 50 sets 21 ~ 30 sheets 67 sets 34 sets 34 sets 31 ~ 40 sheets 50 sets 25 sets -41 ~ 50 sheets 40 sets 20 sets --

1/2" x 11"/A4

or smaller size

1/2" x 11"/B4 11" x 17"/A3

)

Stapler Capacity: 81/2" x 11"/A4 or smaller size (20 lb/80 g/m2):

from 2 to 50 sheets

1/2" x 14"/B4 (20 lb/80 g/m

from 2 to 50 sheets

11" x 17"/A3 (20 lb/80 g/m

from 2 to 30 sheets Staple Replenishment: Cartridge exchange (5,000 pieces/cartridge) Power Source: DC 24 V (from copier) Power Consumption: 60 VA (average)

OVERALL MACHINE INFORMATION 31 January 1996

Stapling Position:

(1 staple)

(2 staples)

a a

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a = 0.2" ± 0.08" (5 ± 2 mm) b = 0.2"

± 0.1" (5 ± 2.5 mm)

a = 0.2" b = 0.2"

± 0.08" (5 ± 2 mm) ± 0.1" (5 ± 2.5 mm)

a = 0.2" b = 5.20" (8 b = 10.5" (8

± 0.08" (5 ± 2 mm)

± 0.08" (132 ± 2 mm)

1/2" x 11"/A4 or smaller size)

± 0.08" (265 ± 2 mm)

1/2" x 14"/B4 or larger size)

Dimensions: 24.4" x 27.5" x 36.4"

(620 mm x 699 mm x 925 mm)

Weight: 110 lb/50 kg

Finisher

31 January 1996 OVERALL MACHINE INFORMATION

1.2 MECHANICAL COMPONENT LAYOUT

1. Stack Height Sensor Feeler

2. Shift Tray

3. Shift Tray Positioning Roller

4. Jogger Unit

5. Positioning Roller

6. Stack Feed-out Belt

7. Stapler Unit

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8. Alignment Brush Roller

9. Lower Transport Rollers

10. Junction Gate

11. Entrance Rollers

12. Upper Transport Rollers

13. Exit Rollers

OVERALL MACHINE INFORMATION 31 January 1996

1.3 ELECTRICAL COMPONENT DESCRIPTION

Refer to the electrical component layout on the reverse side of the Point to Point (water proof paper) index numbers.

Name Function Index No.

Motors

Transport Drive Drives transport rollers. 12 Shift Tray Lift Moves the shift tray up or down. 4 Exit Drive Drives the exit and shift tray positioning rollers. 5 Exit Unit Lift Lifts the exit roller unit. 1 Stack Feed-out Drives the stack feed-out belt. 8 Jogger Moves the jogger fences. 11 Stapler Drive Moves the stapler unit. 10 Shift Moves the shift tray side to side. 21 Staple Drives the staple hammer. 18

Sensors

Entrance Detects copy paper entering into the finisher. 3 Jogger Unit Entrance Detects copy paper entering into the jogger unit. 6 Jogger Unit Paper Detects copy paper in the jogger unit. 17 Stack Feed-out Belt HP Detects the home position of the stack feed-out belt. 16 Jogger HP Detects the jogger home position. 23 Exit Detects misfeeds in exit area. 25 Stack Height 1 Detects copy paper stack height in staple mode. 26 Stack Height 2 Detects copy paper stack height in sort/stack mode. 28 Shift Tray Lower Limit Detects the lower limit of the shift tray position. 14 Stapler Hammer HP Detects the staple hammer home position. 19 Exit Unit HP Detects the exit roller upper unit home position. 29 Exit Unit Half Turn Detects the exit roller upper unit position. 27 Shift Tray Half Turn Detects shift tray side to side position. 20 Stapler Unit HP Detects the stapler unit home position. 22 Front Door Safety

(Switch) Shift Tray Upper Limit

(Switch) Staple End Detects staple end conditions 30 Cartridge Set Detects if the staple cartridge is installed or not. 31

Cuts dc power when the front door is opened.

Detects the upper limit of the shift tray position.

Solenoids

Positioning Roller Lowers the positioning roller in the jogger unit. 9 Junction Gate Drives the junction gate. 7

Finisher

31 January 1996 OVERALL MACHINE INFORMATION

Name Function Index No.

PCBs

Transport Drive Motor Control

Main Control Controls overall finisher operation. 15

Controls the transport drive motor operation.

OVERALL MACHINE INFORMATION 31 January 1996

1.4 DRIVE LAYOUT

2 3

4 5

8 7

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1. Shift Tray Lift Motor

2. Exit Drive Motor

3. Upper Transport Drive Belt

4. Lower Transport Drive Belt

5. Transport Drive Belt

6. Transport Drive Motor

7. Shift Tray Lift Belt

8. Shift Motor

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9. Shift Cam

10. Exit Roller

11. Stack Feed-out Motor

12. Jogger Drive Belt

13. Jogger Motor

14. Stapler Drive Motor

15. Stack Feed-out Belt

16. Stapler Drive Belt

Finisher

31 January 1996 OVERALL MACHINE INFORMATION

1.5 BASIC OPERATION

[D]

[A]

[E]

[B]

[F]

[C]

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After the copy is completed, the paper is directed to the finisher. If the sort/stack mode is selected, the junction gate [A] directs the paper upwards to transport it to the shift tray [B]. In these modes, the shift tray is shifted side to side to stagger and separate sets of copies. The amount of shift is approximately 30 mm.

When the staple mode is selected, the junction gate directs the paper below to transport the paper to the jogger unit [C]. Each time a copy is delivered to the jogger unit, the positioning roller [D], the alignment brush roller [E], and the jogger fences [F] square the stack of copies. After the final copy of the set is squared, the set is stapled, and then delivered to the shift tray.

SECTIONAL DESCRIPTION 31 January 1996

2. SECTIONAL DESCRIPTION

2.1 PAPER DELIVERY SWITCHING

[B]

[C] [D]

[A]

(1) Staple Mode (2) Sort/Stack Mode

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Depending on the selected finishing mode, the copies are directed up or down by the junction gate [A]. A two-way solenoid is used to control the junction gate.

(1) When the exit sensor of the copier is activated while in staple mode, the solenoid [B] pulls the plunger in the arrow [C] direction. The junction gate directs the copies down to transport them to the jogger unit.

(2) When the exit sensor of the copier is activated while in the sort/stack mode, the solenoid pushes the plunger in the arrow [D] direction. The junction gate directs the copies up to deliver them to the shift tray.

The junction gate keeps its position until a different finishing mode is selected.

Finisher

31 January 1996 SECTIONAL DESCRIPTION

2.2 SHIFT TRAY UP/DOWN MECHANISM

[D]

[E]

[F]

[A]

[B]

[H]

[J]

[C]

[I]

[G]

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The vertical position of the shift tray [A] is controlled by the shift tray lift motor (dc motor) [B] through the gears and the timing belts [C]. When the main switch is turned on, the tray position is initialized to the upper position. The tray’s upper most position is detected when the shift tray pushes up the actuator [D] to deactuate the stack height sensor 1 [E].

While copying, the actuator [D] is gradually raised as the copy stack grows. In the sort/stack mode, when the stack height sensor 2 [F] remains actuated for 4 seconds, the shift tray lift motor [B] rotates, lowering the tray unit for 50 ms.

In staple mode, when the stack height sensor 1 remains deactuated for 4 seconds, the motor rotates lowering the tray until the sensor [E] is actuated.

When the tray reaches its lower limit position, the lower limit sensor [G] is actuated by the actuator [H], and copy operation stops.

After the copy process is finished and the machine stops, the tray is raised to its upper most position 4 seconds after the copies are removed.

A mechanical safety switch [I] is installed to prevent the drive gears from being damaged if the sensor does not work. When the shift tray pushes up the shift tray positioning roller [J], the shift tray lift motor stops.

SECTIONAL DESCRIPTION 31 January 1996

2.3 SHIFT TRAY SIDE TO SIDE SHIFT MECHANISM

[E]

[D]

[A]

[C]

[B]

[F]

[G]

[H]

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In the sort/stack mode, the shift tray [A] moves side to side to stagger and separate sets of copies.

The horizontal position of the shift tray is controlled by the shift motor (dc motor) [B] and the shift cam (helical cam) [C]. After one set of the original is copied and delivered to the shift tray, the shift motor [B] starts rotating, driving the shift cam through the timing belt. The pin [D] fixed to the shift tray base plate [E] is positioned in the groove on the shift cam, creating the side to side movement required to stagger copies.

When the shift cam rotates 180 degrees (The tray is fully shifted.), the plate [F] on the shift cam pushes the actuator [G] of the shift tray half turn sensor [H] and the shift motor stops. The next set of copies is then delivered. The motor rotates repeating the same process and moving the tray back to the previous position.

Finisher

31 January 1996 SECTIONAL DESCRIPTION

2.4 STAPLE UNIT PAPER POSITIONING

[F]

[C]

[B]

[E]

[A]

[H]

[G]

[D]

[F]

[C]

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In the staple mode, copies are vertically and horizontally aligned in the jogger unit before being stapled.

For horizontal paper alignment, the jogger motor [A] moves both the front and the rear jogger fences [B] to align the copies.

For vertical paper alignment, the positioning roller [C] and the alignment brush roller [D] push the copy against the stack stopper [E].

After the trailing edge of the copy passes the jogger unit entrance sensor [F], the positioning roller solenoid [G] is energized for 280 ms pushing the positioning roller into contact with the paper. The positioning roller rotates to push the paper back and align the trailing edge of the paper against the stack stopper. Both the positioning roller and the alignment brush roller are driven by the transport drive motor through the timing belt [H].

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