Ricoh AD330 SPECIFICATIONS

DUPLEX UNIT (G694)

1 August 1996 SPECIFICATIONS

1. SPECIFICATIONS

Copy Paper Size : Width

Max. 297 mm, Min. 182 mm Length

Max. 432 mm, Min. 148 mm Paper Weight : 60 g to 90 g Capacity: 1 sheet Power Source : 24 Vdc from the copier Power Consumption : 25 W Dimensions (W x D x H) : Duplex Tray - 530 x 565 x 255 mm

Inverter Unit - 75 x 428 x 101 mm Weight : Duplex Tray - 4.1 kg

Inverter Unit - 1 kg

G694-1

COMPONENT LAYOUT 1 August 1996

2. COMPONENT LAYOUT

2.1 MECHANICAL COMPONENT LAYOUT

1. Duplex Junction Gate

2. Inverter Unit Transport Roller

3. Duplex Feed Roller

5. Left Transport Roller

6. Duplex Tray

7. Inverter Unit

G694O006.wm f

4. Central Transport Roller

G694-2

1 August 1996 COMPONENT LAYOUT

2.2 ELECTRICAL COMPONENT LAYOUT

G694O002.wmf

1. Duplex Control Board

2. Duplex Turn Sensor

3. Duplex Exit Sensor

4. Duplex Feed Motor

G694O003.wmf

5. Duplex Transport Motor

6. Duplex Junction Gate Solenoid

7. Duplex Entrance Sensor

G694-3

COMPONENT LAYOUT 1 August 1996

2.3 ELECTRICAL COMPONENT DESCRIPTION

Symbol

Motors

M1 Duplex Transport Drives the left and central tran sport rollers. 5 M2 Duplex Feed Drives the duplex feed roller. 4

Sensors

S1 Duplex Entrance

S2 Duplex Turn

S3 Duplex Exit

Solenoid

SOL1

PCBs

PCB1 Duplex Control Controls the overal l duplex tray oper at ion. 1

Duplex Juncti on Gate Control

Name Function

Detects misfeeds and controls the transport motor speed.

Detects misfeeds, controls the paper stop position, and cont rols the duplex fee d roller timing.

Detects misfe eds and controls the duplex feed roller off timing.

Controls the dupl ex junction gate. 6

Index

No.

G694-4

1 August 1996 DRIVE LAYOUT

3. DRIVE LAYOUT

1. Left Transport Roller

G694o004.wmf

G694O005.wmf

4. Duplex Feed Motor

2. Central Transport Roller

3. Duplex Feed Roller

5. Transport Motor

6. Inverter Unit Transport Roller

G694-5

BASIC OPERATION 1 August 1996

4. BASIC OPERATION

4.1 A3 PAPER SIZE

1. When the leading edge of the paper [A]

has passed through the fusing unit, the junction gate solenoid energizes and the junction gate [B] is opened. The paper is guided to the inverter unit [C]. The on timing of the junction gate solenoid is controlled by the registration sensor.

2. The paper is fed to the duplex tray [D] by

the inverter unit transport roller [E], and to the duplex feed roller [F] by the left and central transport rollers ([G], [H]) in the duplex tray. When the trailing edge of the paper has passed through the duplex entrance sensor [I], the speed of the paper doubles.

[B]

[D]

[A]

[C]

G694O506.wmf

[E]

[F]

[I]

3. The paper is inverted by the duplex feed

roller [F]. The duplex feed motor turns off shortly after the trailing edge of the paper passes through the duplex turn sensor [J].

[G] [H]

G694O507.wmf

[J]

G694O508.wmf

[F]

G694-6

1 August 1996 BASIC OPERATION

4. Almost immediately after stopping, the

duplex feed motor turns on again in reverse, and the inverted paper is fed back to the copier. When the trailing edge of the paper passes through the duplex exit sensor [K], the duplex feed motor turns off.

[K]

G694O509.wmf

5. The paper is transported to the exit area.

G694O521.wmf

G694-7

+ 18 hidden pages