Ricoh rt42 SPECIFICATIONS

LCT

(Machine Code: B303)

22 October 1999 SPECIFICATIONS

1. OVERALL MACHINE INFORMATION

1.1 SPECIFICATIONS

Paper Size

A4 sideways, B5 sideways, LT sideways, A5, HLT

Paper Weight: Upper & Middle Tray:

52 to 216 g/m

16 to 40 lbs Bond 50 to 80 lbs Cover 90 to 110 lbs Index

Lower Tray:

52 to 163 g/m

16 to 40 lbs Bond 50 to 60 lbs Cover 90 lbs Index (no Tab)

Tray Capacity: Upper & Middle Tray:

1,000 sheets (80 g/m2, 20lb)

Lower Tray:

2,550 sheets (80 g/m2, 20lb) Tab Sheet: Available from the upper or middle trays Paper Feed System: FRR Remaining Paper Detection: 4 steps Power Source: 24 Vdc, 5 Vdc (from copier) Power Consumption: 55 W Weight: 78.8 kg Size (W x D x H): 540 mm x 730 mm x 980 mm

Options

B303-1

MECHANICAL COMPONENT LAYOUT 22 October 1999

1.2 MECHANICAL COMPONENT LAYOUT

1 2

3 4

1. Paper Feed Sensor

2. Paper End Sensor

3. Separation Roller Solenoid

4. Paper Tray

5. Paper Height Sensors

6. Tray Drive Belt

7. Pick-up Roller

B303V101.WMF

8. Separation Roller

9. Paper Feed Roller

10. G rip Roller

11. Relay Roller

12. Relay Sensor

13. Pick-up Solenoid

14. Lif t Sensor

B303-2

22 October 1999 ELECTRICAL COMPONENT DESCRIPTIONS

1.3 ELECTRICAL COMPONENT DESCRIPTIONS

Symbol Name Function

Motors

M1 LCT Drives all roller s. M2 1st Lift Drives the 1st paper tray up or down. M3 2nd Lift Drives the 2nd paper tray up or down. M4 3rd Lift Drives the 3rd paper tray up or down.

Sensors

S1 S2 S3 S4 S5 S6 S7 S8 S9

S10 1st Paper Height 1 Detects the paper height in the 1st tray. S11 1st Paper Height 2 Detects the paper height in the 1st tray. S12 1st Paper Height 3 Detects the paper height in the 1st tray. S13 1st Paper Height 4 Detects the paper height in the 1st tray. S14 2nd Paper Height 1 Detects the paper height in the 2nd tray. S15 2nd Paper Height 2 Detects the paper height in the 2nd tray. S16 2nd Paper Height 3 Detects the paper height in the 2nd tray. S17 2nd Paper Height 4 Detects the paper height in the 2nd tray. S18 3rd Paper Height 1 Detects the paper height in the 3rd tray. S19 3rd Paper Height 2 Detects the paper height in the 3rd tray. S20 3rd Paper Height 3 Detects the paper height in the 3rd tray. S21 3rd Paper Height 4 Detects the paper height in the 3rd tray. S22 Relay Checks for misfeeds.

1st Paper Feed Detects the copy paper coming to the 1st paper feed

roller and checks for misfeeds.

2nd Paper Feed 3rd Paper Feed 1st Lift Detects when the paper in the 1st tray is at the 2nd Lift Detects when the paper in the 2nd tray is at the 3rd Lift Detects when the paper in the 3rd tray is at the 1st Paper End Informs the copier when the paper in the 1st tray has 2nd Paper End Informs the copier when the paper in the 2nd tray has 3rd Paper End

Detects the copy paper coming to the 2nd paper feed roller and checks for misfeeds. Detects the copy paper coming to the 3rd paper feed roller and checks for misfeeds.

correct paper feed height. correct paper feed height. correct paper feed height. run out. run out.

Informs the copier when the paper in the 3rd tray has run out.

Switches

SW1 Front Door Safety Detects whether the tray cover is opened or not. SW2

SW3 SW4 3rd Paper Size Detects whether the 3rd tray is in the machine.

1st Paper Size 2nd Paper Size

Detects the paper size in the 1st tray, and whether the 1st tray is in the machine. Detects the paper size in the 2nd tray, and whether the 2nd tray is in the machine.

B303-3

Options

ELECTRICAL COMPONENT DESCRIPTIONS 22 October 1999

Symbol Name Function

Magnetic Clutches

MC1 1st Paper Feed Drives the paper feed roller in the 1st tray. MC2 2nd Paper Feed Drives the paper feed roller in the 2nd tray. MC3 3rd Paper Feed Drives the paper feed roller in the 3rd tray. MC4 1st Grip Drives the grip roller in the 1st tray. MC5 2nd Grip Drives the grip roller in the 2nd tray. MC6 3rd Grip Drives the grip roller in the 3rd tray. MC7 Transport Drives the transport rollers.

Solenoids

SOL1 SOL2 SOL3 SOL4 SOL5 SOL6

1st Pick-up Controls up-down movement of the pick-up roller in

the 1st tray.

2nd Pick-up Controls up-down movement of the pick-up roller in

the 2nd tray.

3rd Pick-up

Controls up-down movement of the pick-up roller in the 3rd tray.

1st Separation Roller

2nd Separation Roller

3rd Separation Roller

Controls up-down movement of the separation roller in the 1st tray.

Controls up-down movement of the separation roller in the 2nd tray.

Controls up-down movement of the separation roller in the 3rd tray.

PCBs

PCB1 Main Controls the LCT and communicates with the copier.

B303-4

22 October 1999 DRIVE LAYOUT

1.4 DRIVE LAYOUT

1. Main Drive Belt

2. Tray Lift Motors

3. LCT Motor

4. Tray Drive Shaft

5. Pick-up Roller

6. Tray Drive Belt

7. Separation Roller

8. Paper Feed Roller

9. Grip Roller

10. Transport Rollers

11. Relay Roller Drive Belt

12. G rip Roller Clutch

13. Paper Feed Clutch

14. Transport Clutch

B303V102.WMF

Options

B303-5

PAPER FEED 22 October 1999

2. DETAILED DESCRIPTIONS

2.1 PAPER FEED

[A]

[D]

[C]

[B]

B303D113.WMF

This LCT has three paper tray feed stations. The upper and middle trays can each hold 1,000 sheets of paper. The lower tray

can hold 2,500 sheets of paper. All feed stations use an FRR paper feed system (paper feed roller [A], separation

roller [B], pick-up roller [C]), and those rollers are driven by the LCT motor via the paper feed clutch [D].

B303-6

22 October 1999 PICK-UP AND FEED

2.2 PICK-UP AND FEED

2.2.1 OVERVIEW

[H]

[F]

[A]

[G]

[B]

[D]

[E]

[C]

B303D105.WMF

Drive from the LCT motor is transmitted to the gear [A] in the paper feed unit via the timing belt [B].

Then the gear [A] transmits the drive to the pick-up [C], paper feed [D] and separation [E] rollers via gears and the paper feed clutch [F].

The gear [A] also transmits the drive to the grip roller [G] via gears and the grip roller clutch [H].

B303-7

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