Ricoh df69 SPECIFICATIONS

AUTO REVERSE DOCUMENT FEEDER

(

Machine Code:

A858)

20 September 1999 SPECIFICATIONS

1. OVERALL MACHINE INFORMATION

1.1 SPECIFICATIONS

Original Size: Standard sizes

Single-sided mode: A3 to A5, DLT to HLT
Double-sided mode: A3 to A4, DLT to LT
Non-standard sizes (Single-sided mode only)
Max. width 297 mm
Min. width 105 mm
Max. length 1260 mm
Min. length 128 mm

Original Weight: Single-sided mode: 52~128 g/m2,14~34 lb

Double-sided mode: 52~10 5 g/m2,14~28 lb
Table Capacity: 30 sheets (70 kg)
Original Standard Position: Center
Separation: FRR
Original Transport: Roller transport
Original Feed Order: From the top original
Reproduction Range: 50 to 200 % (Sub scan direction only)
Power Source: 24 & 5 Vdc from the copier
Power Consumption: 50 W
Dimensions (W x D x H): 550 x 470 x 110 mm
Weight: 10 kg

A858-1

Options

MECHANICAL COMPONENT LAYOUT 20 September 1999

1.2 MECHANICAL COMPONENT LAYOUT

2

3456789

1

1. Separation Roller

2. Paper Feed Belt

3. Pick-up Roller

4. Original Set Sensor

A858D201.WMF

11 1012131415181917 16

11. Reverse Roller

12. Junction Gate

13. Exit Roller

14. Original Exit Sensor

5. Original Trailing Edge Sensor

6. Original Width Sensor Board

7. Original Length Sensor 1

8. Original Length Sensor 2

9. Original Table

10. Reverse Table

15. Stamp

16. 2nd Transport Roller

17. Original Exposure Guide

18. Registration Sensor

19. 1st Transport Roller

A858-2

20 September 1999 ELECTRICAL COMPONENT LAYOUT

1.3 ELECTRICAL COMPONENT LAYOUT

16

15

14

13

1. DF Feed Clutch

12

17

11

1

2

3

4

5

6

7

8

9

10

A858D202.WMF

10. DF Feed Motor

2. Feed Cover Sensor

3. Original Width Sensor Board

4. Original Length Sensor 1

5. DF Pick-up Solenoid

6. Original Length Sensor 2

7. Junction Gate Solenoid

8. DF Drive PCB

9. DF Position Sensor

11. DF Transport Motor

12. Original Exit Sensor

13. Stamp Solenoid

14. Original Trailing Edge Sensor

15. Original Set Sensor

16. Original Reverse Sensor

17. Registration Sensor

Options

A858-3

ELECTRICAL COMPONENT DESCRIPTION 20 September 1999

1.4 ELECTRICAL COMPONENT DESCRIPTION

Symbol Name Function

Motors

M1 DF Feed Drives the feed belt, separation, pick-up, and

reverse table rollers.

M2 DF Transport Drives the transport and exit rollers 11

Sensors

S1 DF Position Detects whether the DF is lifted or not. 9
S2 Registration

S3 Feed Cover Open

Sensor

S4 Original Width

Sensor Board
S5 Original Length - 1 Detects the original length. 4
S6 Original Length - 2 Detects the original length. 6
S7 Original Set Detects if an original is on the feed table. 15
S8 Original Exit

S9 Original Trailing

Edge

S10 Original Reverse

Sensor

Solenoids

SOL1 DF Pick-up Controls the up-down movement of the original
SOL2 Stamp Energizes the stamper to mark the original. 13

SOL3 Junction Gate Opens and closes the junction gate. 7

Detects the leading edge of the original to turn
off the DF feed and transport motors, detects
the original exposure timing, and checks for
original misfeeds.

Detects whether the feed-in cover is opened or
not.

Detects the original width. 3

Detects the leading edge of the original to turn
on the junction gate solenoid and checks for
original misfeeds.
Detects the trailing edge of the original to turn
off the transport and feed motor and junction
gate solenoid.
In single-sided mode, used to detect original
misfeeds.

Detects the trailing edge of the last original to
stop copy paper feed and to turn off the
transport motor, and checks for original
misfeeds.

Detects when the original is fed from the
reverse area during duplex scanning.

table.

Index

No.

10

17

2

12

14

16

5

Clutches

MC1 DF Feed

PCBs

PCB1 DF Drive Interfaces the sensor signals with the copier,

Transfers transport motor drive to the pick-up
roller and feed belt.

and transfers the magnetic clutch, solenoid and
motor drive signals from the copier.

A858-4

1

8

20 September 1999 DRIVE LAYOUT

1.5 DRIVE LAYOUT

2

1

10

9

1. Separation Roller

2. Original Feed Belt

4

3

5

6

8

7

A858D203.WMF

6. DF Feed Motor

7. Reverse Table Roller

3. Pick-up Roller

4. DF Feed Clutch

5. DF Transport Motor

8. 2nd Transport Roller

9. Exit Roller

10. 1st Transport Roller

Options

A858-5

ORIGINAL SIZE DETECTION 20 September 1999

2. DETAILED SECTION DESCRIPTIONS

2.1 ORIGINAL SIZE DETECTION

[A]

[B]

[C]

A858D503.WMF

The original size detection mechanism consists of the original width sensor board
[A] and two original length sensors-1 [B] and -2 [C]. Based on the combined output
of the length sensors and the width sensor board, the machine can detect the size
of the original. This integrated detection mechanism is detailed in the table on the
next page.

Note that the width sensor’s terminal plate is attached to the original guide, so the
widths of the originals must all be the same.

A858-6

20 September 1999 ORIGINAL SIZE DETECTION

A3 (297 x 420)
B4 (257 x 364)
A4 (Lengthwise)

(210 x 297)
A4 (297 x 210)

(Sideways)
B5 (182 x 257)

(Lengthwise)
B5 (257 x 182)

(Sideways)
A5 (148 x 210)

(Lengthwise)
A5 (210 x 148)

(Sideways)
11" x 17" (DLT)
11" x 15"
10" x 14"

8.5" x 14" (LG)

8.5" x 13" (F4)
8" x 13" (F)

8.5" x 11"
(Lengthwise)

8.5" x 11"
(Sideways)

10" x 8"
(Lengthwise)

5.5" x 8.5"
(Lengthwise)
(HLT)

5.5" x 8.5"
(Sideways) (HLT)

NA EU

æP
æP

æP

æP

æP

æP

ææ

æP

Pæ
Pæ
Pæ
Pæ
æP
PP

Pæ

Pæ

Pæ

Pæ

Pæ

Original
Width-1

LLON———ONON
LH—ON——ONON

HL——ON—ON—

LLON—————

HH———ONON—

LH—ON————

HH———ON——

HL——ON———

LLON———ONON
LLON———ONON

LH—ON——ON—
HL——ON—ON—
HL——ON—ON—
HL——ON—ON—

HL——ON—ON—

LLON—————

LH—ON——ON—

HH———ON——

HL——ON———

Original
Width-2

Original Width-3

P4 P3 P2 P1

Original

Length-1

Original

Length-2

Key

æ

: No, P: Yes
ON: Paper present
NA: North America, EU: Europe

NOTE:

1) P1-P4 represent the four positions on the width sensor board. ON
indicates the presence of the terminal plate in a given position. “Original
Width-1” and “Original Width-2” are the outputs from the sensor board to
the DF main board. The state of these outputs (L or H) depends on the
position of the terminal plate on the sensor board (P1, P2, P3, or P4).
For example, if the terminal plate is at P4, both outputs are L.

2) A reading of “L” on either of the width sensor outputs indicates that the
terminal plate is connecting the GND pattern with the width sensor
output signal line.

3) The machine cannot detect more than one size of originals in the same
job.

Options

A858-7

ORIGINAL SIZE DETECTION 20 September 1999

Original Width Sensor Board

GND Pattern
Original Width 1

Original Width 2

Original Side
Guide Position

The signal is "L" when the terminal plate is connected to the GND pattern.

A3/A4S B4/B5S A4L/A5S B5L/A5L

P1P2P3P4

A858D501.WMF

A858-8

20 September 1999 PICK-UP AND SEPARATION

2.2 PICK-UP AND SEPARATION

[E]

[A]

[B]

[C]

[D]

[B]

A858D504.WMF

[F]

[G]

A858D505.WMF

The original is set with the image facing up. The original pushes actuator [A] and
the original set sensor [E] is activated.

After pressing the start button, the pick-up solenoid [D] is activated and the lift plate
[C] lifts the original up until it comes in contact with the pick-up roller [B]. The pick­up roller then feeds the top sheet of paper.

After being fed from the pick-up roller, the topmost sheet is separated from the
stack by the separation roller and sent to the first transport roller.

The mechanism is an FRR system, consisting of the original feed belt [F] and
separation roller [G].

Options

A858-9