Ricoh ps500 SPECIFICATIONS

LCT

(Machine Code: A862/B391)

10 August, 2001 SPECIFICATIONS

1. OVERALL MACHINE INFORMATION

1.1 SPECIFICATIONS

Paper Size:
Paper Weight: 60 g/m2 ~ 105 g/m2, 16 lb ~ 28 lb
Tray Capacity: 2,000 sheets (80 g/m2, 20lb)
Remaining Paper Detection: 5 steps (100%, 75%, 50%, 25%, Near end)
Power Source: 24 Vdc, 5 Vdc (from copier/printer)
Power Consumption: 26 W (Max.)/14 W (Ave.)
Weight: 25 kg (55 lbs)
Size (W x D x H): 550 mm x 520 mm x 271 mm

A4 sideways/LT sideways

B391-1

Options

MECHANICAL COMPONENT LAYOUT 10 August, 2001

1.2 MECHANICAL COMPONENT LAYOUT

1. Pick-up Roller

10

2143

5

6

7

89

B391D101.WMF

7. Paper Height Sensors 1, 2, 3

2. Upper Limit Sensor

3. Paper Feed Roller

4. Relay Sensor

5. Relay Roller

6. Reverse Roller

8. Lower Limit Sensor

9. Left Paper End Sensor

10. Paper Height Sensors 4,5

B391-2

10 August, 2001 ELECTRICAL COMPONENT LAYOUT

1.3 ELECTRICAL COMPONENT LAYOUT

1

2

3

4

5

7

B391D102.WMF

1. Main Board

2. Tray Sensor

17

16

6

89

20

19

18

B391D103.WMF

15

12. Paper Height Sensors 1, 2, 3

13. Lower Limit Sensor

10
11

12

13

14

3. Relay Clutch

4. Paper Feed Clutch

5. Tray Motor

6. Tray Lift Motor

7. Tray Heater (option)

8. Right Tray Paper End Sensor

9. Upper Limit Sensor

10. Relay Sensor

11. Side Fence Open/Closed Sensors

B391-3

14. Side Fence Solenoid

15. Rear Fence Return Sensor

16. Rear Fence Motor

17. Rear Fence Home Position
Sensor

18. Left Tray Paper End Sensor

19. Paper Height Sensors 4, 5

20. Right Cover Switch

Options

ELECTRICAL COMPONENT DESCRIPTIONS 10 August, 2001

1.4 ELECTRICAL COMPONENT DESCRIPTIONS

Symbol Name Function Index No.

Motors

M1 Tray Motor Drives all rollers. 5
M2 Tray Lift Motor Drives the paper tray up or down. 6

Rear Fence

M3

Sensors

S1

S2
S3
S4
S5
S6
S7

S8 Tray Detects whether the tray is correctly set. 2
S9

S10

S11

Solenoids

SOL1

Magnetic Clutches

MC1 Paper Feed Drives the paper feed roller. 4
MC2 Relay Drives the relay roller. 3

PCBs

PCB1

Switches

SW1 Right Cover Detects whether the right cover is open. 20

Motor

Right Tray
Paper End

Relay
Upper Limit Detects when the paper is at the correct
Lower Limit Detects when the tray is completely lowered,
Paper Height

1, 2, 3
Paper Height

4, 5
Rear Fence

Home Position

Side Fence
Open/Closed

Rear Fence
Return

Left Tray
Paper End

Side Fence Contro ls open-close movement of the side

Main Controls the LCT and communicates with the

Moves the rear fence to transfer the paper
stack from the paper storage (left) side of the
tray to the paper feed (right) side.

Informs the copier/printer when the paper in
the right side (paper feed side) of the tray has
been used up. If there is a paper stack in the
left side (paper storage side), this is moved
into the right tray. If there is no paper stack in
the left side, paper end is indicated.

Detects the copy paper coming to the relay
roller and checks for misfeeds.

paper feed height.
to stop the LCT motor.

Detects the amount of paper remaining in the
right side of the tray.

Detects the amount of paper remaining in the
left side of the tray.

Detects when the rear fence is at H.P.

Detects whether the side fence is opened on
closed.

Detects when the rear fence has moved the
paper stack from the left side to the right side.

Informs the copier/printer when there is no
paper in the left side (paper storage side) of
the tray.

fence.

copier/printer.

16

8

10

9
13
12
19
17

11
15

18

14

1

B391-4

10 August, 2001 PAPER FEED

2. DETAILED SECTION DESCRIPTIONS

2.1 PAPER FEED

[B]

[A]

[C]

B391D104.WMF

This products uses an FRR type paper feed mechanism.
The paper feed unit consists of the pickup roller [A], paper feed roller [B], reverse

roller [C], and grip and transport rollers.
There is a torque limiter in the back of the reverse roller (ferrite powder type).

B391-5

Options