Ricoh PS330 SPECIFICATIONS
PAPER TRAY UNIT (G697)
1 August 1996 SPECIFICATIONS
1. SPECIFICATIONS
Copy Paper Size: A3 to A5 sideways
Paper Weight: 60 g to 90 g
Tray Capacity: 500 sheets (70 kg)
Power Source: 24 & 5 Vdc from the copier
Power Consumption: 40 W
Dimensions (W x D x H): 530 x 565 x 255 mm
Weight: 20 kg
G697-1
COMPONENT LAYOUT 1 August 1996
2. COMPONENT LAYOUT
2.1 MECHANICAL COMPONENT LAYOUT
8
1
2
3
4
5
7
1. Bottom Plate
2. Lower Paper Feed Roller
3. Upper Paper Feed Roller
4. Bank Door
6
A697o006.wmf
5. Upper Relay Roller
6. Lower Relay Roller
7. Lower Tray
8. Upper Tray
G697-2
1 August 1996 COMPONENT LAYOUT
2.2 ELECTRICAL COMPONENT LAYOUT
1
2
16
15
14
3
4
5
6
7
8
13
12
11
10
9
G697O003.wmf
1. Paper Tray Unit Drive Board
2. Paper Feed Motor
3. Upper Paper Feed Clutch
4. Upper Relay Clutch
5. Upper/Lower Lift Motor
6. Lower Paper Feed Clutch
7. Lower Relay Clutch
8. Tray Cover Switch
9. Lower Paper End Sensor
10. Lower Relay Sensor
11. Lower Tray Upper Limit Sensor
12. Lower Paper Size Sensor
13. Upper Paper Size Sensor
14. Upper Tray Upper Limit Sensor
15. Upper Relay Sensor
16. Upper Paper End Sensor
G697-3
COMPONENT LAYOUT 1 August 1996
2.3 ELECTRICAL COMPONENT DESCRIPTION
Symbol Name Function Motors Index.
No.
Motors
M1 Paper Feed Drives all the roller s. 2
M2 Upper Lift Lifts and lowers the upper tray bottom plate. 5
M3 Lower Lift Lifts and lowers the lower tray bottom pl ate. 5
Sensors
S1 Upper Paper End Informs the CPU whe n th er e i s no paper in the
upper tray.
S2 Lower Paper End Informs the CPU whe n th er e i s no paper in the
lower tray.
S3 Upper Tray Upper Li m i t Detects when the paper in the uppe r tray is at the
correct height for paper feed.
S4 Lower Tray Upper Li m i t Detects when the paper in the lower tray is at the
correct height for paper feed.
S5 Upper Relay Detects misfee ds and controls the u pper paper
feed clutch off timing.
S6 Lower Relay Detects misfee ds and controls the lower paper
feed clutch off timing.
S7 Upper Paper Size Determines what paper size is in the upp er tray. 12
S8 Lower Paper Size Determines what paper size is in the lower tray. 13
16
9
14
11
15
10
Clutches
MC1 Upper Paper Feed Starts paper feed from the upper feed tray. 3
MC2 Lower Paper Feed Starts paper feed from the lo w er feed tray. 6
MC3 Upper Relay Starts the upper re l ay r ol l er. 4
MC4 Lower Relay Starts the lower relay roller. 7
PCBs
PCB1 Paper Tray Unit Dr i ve Interfaces the sensor signals to t he copier and
transfers the magnetic clutch, heater, and motor
drive signals from the copier.
Optional tray heaters are also available.
1
G697-4
1 August 1996 COMPONENT LAYOUT
2.4 DRIVE LAYOUT
1
2
3
4
5
G697O005.wmf
6
2
3
7
1. Paper Feed Motor
2. Upper Paper Feed Clutch
3. Upper Relay Clutch
4. Lower Relay Clutch
5. Lower Paper Feed Roller
6. Upper Paper Feed Roller
8
9
G697O005.wmf
7. Drive Gear - Upper Paper Feed
Roller
8. Lower Paper Feed Roller
9. Drive Gear - Lower Paper Feed
Roller
4
5
G697-5
DETAILED DESCRIPTION 1 August 1996
3. DETAILED DESCRIPTION
3.1 PAPER FEED AND TRAY LIFT/LOWER MECHANISM
[G]
[E]
[F]
[D]
[B]
[C]
[A]
[G]
[B]
G697O007.wmf
[C]
This paper tray unit has two trays. Each paper tray is a drawer type that can
hold up to 500 sheets of paper. The mechanism is the same as for the main
machine, except for the lifting and lowering mechanism of the tray bottom
plate.
When the tray is slid into the machine, the lift motor [A] turns on. The paper
size sensor works as the tray detector. When the sensor detects the tray, the
lift motor turns the tray arm shaft [B], and the tray arm [C] lifts the tray bottom
plate [D].
The tray bottom plate lifts the paper feed roller [E]. When the shutter on the
paper feed roller holder [F] turns on the lift sensor [G], the lift motor turns off.
When the lift sensor turns off during multicopying, the lift motor turns on until
lift sensor turns on again. Between copies, the bottom plate is lowered (see
below). This mechanism gives a stable paper feed pressure.
In the following conditions, the lift motor turns on clockwise for approximately
1 second to lower the tray. This mechanism prevents paper feed roller marks
from appearing on the paper and stabilizes the paper transport.
30 s after the paper feed clutch turns off for the last sheet of a copy job.
•
When the tray becomes empty.
•
G697-6
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