Ricoh FT5035-S DOCUMENT FEEDER

AUTO REVERSE

DOCUMENT FEEDER

(Machine Code: A548)

13th January 1995 SPECIFICATIONS

1. SPECIFICATIONS

Original Size and Weight: Thick original mode (default mode )

Use this setting for norma l paper types
Maximum A3, 11" x 17"
Minimum B6 (sideways), 51/2" x 81/2"
Weight 52 ~ 128 g/m2 (14 ~ 34 lb)

Thin original mode

Maximum A3, 11" x 17"
Minimum B6, 51/2" x 81/2"
Weight 40 ~ 128 g/m2 (11 ~ 34 lb)

Auto reverse mode

Maximum A3, 11" x 17"
Minimum B5, 51/2" x 81/2"
Weight 52 ~ 105 (14 ~ 27 lb)

Original Feed: Automatic feed - ADF mode

Manual feed one by one - SADF mode
Auto Reverse Feed - ARDF mode

Document

Auto Reverse

Original Table Capacity: 50 sheets at 80 g/m2 (21 lb)
Original Placement: Face up, first sheet on top
Original Separation: Feed Roller and Friction Belt
Original Transport: One flat belt
Power Consumption: 45 W
Power Source:
Dimensions (W x D x H): 610 x 507 x 130 mm (24.0" x 20.0" x 5.1")
Weight: Approximately 10.5 kg (23.2 lb)

24 V ± 10% from the copier, 1.8 A

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10

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COMPONENT LAYOUT 13th January 1995

2. COMPONENT LAYOUT

2.1 MECHANICAL COMPONENTS

1

11

9

1. Original Stopper

2. Press Lever

3. Original Table

4. Exit Rollers

5. Inverter Pawls

2

8

7. Transport Belt

8. Pick-up Rollers

9. Pull-out Roller

10. Feed Roller

11. Friction Belt

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6

7

6. Inverter Rollers

2

4

13th January 1995 COMPONENT LAYOUT

2.2 ELECTRICAL COMPONENTS

17

16

15

14

1. Original Set Sensor

2

1

3

Document

Auto Reverse

5

6

7

8

9

10

11

12

13

10 Feed-out Motor

2. Feed-in Cover Open Sensor

3. Stopper Solen oid

4. Indicator Panel Lamps

5. Feed-in Motor

6. Belt Drive Motor

7. DF Main Board

8. Inverter Solenoid

9. Feed-out Cover Open Sensor

11. Feed-out Sen s or

12. APS Start Sensor

13. DF Position Sensor

14. Original Width Sensor - 1

15. Original Width Sensor - 2

16. Original Width Sensor - 3

17. Registration Sensor

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ELECTRICAL COMPONENT DESCRIPTION 13th January 1995

3. ELECTRICAL COMPONENT DESCRIPTION

Symbol Name Function Index No.

Motors

M1 Feed-in
M2 Belt Drive Drives the transport belt 6
M3 Feed-out

Sensors

S1 Original Set

S2 Feed-in Cover Open

S3 Feed-out Cover Open

S4 Feed-out

S5 APS Start

S6 DF Position
S7 Original Width-1 Detects the width of the original 14

S8 Original Width-2 Detects the width of the original 15
S9 Original Width-3 Detects the width of the original 16

S10 Registration

Solenoids

SOL1 Stopper

SOL2 Inverter

PCB

PCB1 DF Main Board Controls all DF functions 7

Indicators (Lamps)

L1 Ready

L2 Auto

Drives the feed-in system (pick-up, feed
and pull-out rollers, separation belt)

Drives the feed-out and the inverter
system

Detects whether originals have been
placed on the original table

Informs whether the feed-in cover is open
or not

Informs whether the feed-out cover is
open or not

Checks for original misfeeds and
determines original stop timing when in
auto-reverse mode

Informs the CPU that it is time to detect
the original size (in platen mode)

Informs the CPU whether the DF is in the
up or down position

Determines original stop timing and
measures the length of the original

Lifts the original stopper and lowers the
feed-in lever to feed the set of originals to
the feed roller

Energizes to invert the original when
copying two-sided originals

Informs the operator that the DF is in the
down position.

Informs the operator that the auto feed
mode is available.

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10

1

2

9

11

12

13

17

3

8

4

4

4

[F]

[C]

13th January 1995 DETAILED DESCRIPTIONS

4. DETAILED DESCRIPTIONS

4.1 ORIGINAL PICK-UP ME CHANI SM

[B]

[D]

[A]

[E]

Document

Auto Reverse

When an original is placed on th e table, the leading edge is sto pp ed by t he
stopper [A], and the feeler activates the original set sensor [B]. The Insert
Original indicator light goes out an d the DF informs the copie r’s CPU that th e
originals have been set.

When the Print key is pressed, the stopper solenoid [C] activates to raise the
stopper to allow the originals to be fed in, and to lower the press lever [D] to
press the originals against the pick-up rollers [E ].

An anti-static brush [F] is insta lled to elimin at e static electricity caused during
the original pick-up process.

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[E]

DETAILED DESCRIPTIONS 13th January 1995

4.2 SEPARATION AND PAPER FE ED ME CHANI SM

[D]

[A]

[E]

[B] [F]

[C]

[D]

[A]

[B]

Originals are separated using the frictio n belt [A] and the feed roller [B].
When the copier sends a signal to the DF to feed in the original, the feed-in
motor [C] starts rotating (clockwise) to drive the pick-u p [D], fe ed and pull-o ut
[E] rollers. A one-way bearing stops the friction belt from rot ating . Originals
are separated and fed in one by one because the resist an ce of the stat ionary
friction belt is greater than the friction betwee n pages of th e origina l.

When the registration sensor [F] detects the separated first origin al, the
feed-in motor reverses (counter clockwise), and the drive is transmitted only
to the pull-out rollers due to a one-way bearing. In this condition, the pull-ou t
rollers are still rotating in the same direction, and they feed the original to the
exposure glass. The motor turns off when the trailing edg e of the 1st orig inal
has finished passing over th e sensor.

To prepare the next original, the feed-in motor turns clockwise to separate
the second original and the motor turns off when the registration sensor
detects the second origina l. Whe n it is time fo r the secon d orig inal to be fed
to the exposure glass, the feed -in mot or tu rns cou nt er clockwise .

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13th January 1995 DETAILED DESCRIPTIONS

4.3 FRICTION BELT DRIVE MECHANISM

[A]

[B]

[C]

Document

Auto Reverse

The feed-in motor [A] drives the frictio n belt [B] through timing belts and
gears. The one-way bearing allows the belt to rotate in the dire ctio n sho wn
only when the feed-in motor is rotating count erclo ckwise. (The feed -in mot or
rotates counterclockwise when the original is passing over the registration
sensor, and only the pull-out rollers are rotatin g to feed the pape r to the
exposure glass.)

As a result of this operation, th e part of the friction belt that contacts the feed
roller [C] or the original changes. This prevents multiple feeding or causing
originals to become dirty.

The reverse movement of the frictio n be lt will not aff ect the next origin al
because the pressure of the press leve r hold s the origin als in pla ce.

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DETAILED DESCRIPTIONS 13th January 1995

4.4 ORIGINAL SIZE DETE CTION

[C]

[B]

[A]

The DF detects original width using three original width sensors-1 [A] , -2 [B ]
and -3 [C]. It also detect s the origin al length using the registra tion sensor.

The DF CPU counts the feed-in mot or’s drive pulse s during the on timing of
the registration senso r. Ba sed on th is pulse coun t, the CPU det ermin es the
original length.

The machine detects t he origin al size by th e total combination of all fo ur
sensors.

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