Konica 7065 GUIDE MANUAL f108e

FS-108
FS-108BM

SERVICE HANDBOOK

Sep.1999

Ver.1.0

KONICA CORPORATION

TECHNOLOGY SUPPORT CENTER

TOKYO JAPAN

CONTENTS

CONTENTS

SAFETY AND IMPORTANT WARNING ITEMS

Refer to the 7065 service handbook on page C-1

1. FS-108/FS-108BM

FS-108/FS-108BM PRODUCT SPECIFICATIONS

CENTER CROSS-SECTION.................................1-3

DRIVE SYSTEM DIAGRAM ..................................1-4

[1] Paper Conveyance Drive ........................1-4

[2] Stacker Drive...........................................1-5

[3] Folding Drive (FS-108BM only) ..............1-5

PAPER CONVEYANCE PATH ............................... 1-6

[1] Paper Conveyance Path .........................1-6

[2] Non-Sort Mode ........................................1-7

[3] Sort,Group Mode.....................................1-8

[4] Sub-tray Mode.........................................1-9

[5] Staple Mode ..........................................1-10

[6] Booklet Mode (FS-108BM only)............1-12

EXTERNAL SECTION.........................................1-13

[1] Composition(FS-108/FS-108BM) .........1-13

[2] Disassembly and Reassembly.............1-13

CONVEYANCE SECTION...................................1-18

[1] Composition ..........................................1-18

[2] Mechanisms ..........................................1-19

[3] Disassembly and Reassembly..............1-22

[4] M1 (FNS Conveyance) Control.............1-28

[5] Gate Control ..........................................1-30

[6] M13 (Stacker Entrance) Control ...........1-33

M5 (Alignment Plate/Upper ) Control.....

[7]
[8] M15 (Alignment Plate/Lower)

(FS-108BM only)
[9] M2 (Roller Shift)
[10] M7 (Paper Exit Roller)
[11] SD4 (Paper Exit Opening)
[12] M8 (Paper Exit Opening)

STAPLER UNIT ...................................................1-44

[1] Composition .......................................... 1-44

[2] Mechanism ............................................1-45

[3] Disassembly and Reassembly..............1-49

[4] Stapler Control ......................................1-52

MAIN TRA Y SECTION ........................................1-55

[1] Composition ..........................................1-55

[2] Mechanism ............................................1-55

[3] Disassembly and Reassembly..............1-55

[4] Main-Tray Up/Down Control ................. 1-58

FOLDING UNIT (FS-108BM ONLY)....................1-60

[1] Composition ..........................................1-60

[2] Mechanism ............................................1-61

....................................

Control........................

Control

Control ..............

Control .......

Control..........

................

1-1

1-35

1-36
1-38
1-39
1-41
1-43

[3] Disassembly and Reassembly..............1-62

[4] Folding-Unit Control ..............................1-64

FS-108/FS-108BM ADJUSTMENTS...................1-66

[1] Adjusting the Magnets on Conveyance

Guide Plate B ........................................1-66

[2] Adjusting the Magnets on Conveyance

Guide Plate C ........................................1-67

[3] Adjusting the Sub-tray Paper Exit Guide.1-68
[4] Adjusting the Paper-Path Switching

Guide .....................................................1-69

[5] Adjusting the By-pass Guide ................1-70

[6] Adjusting the Shift Position ...................1-72

[7] Adjusting Opening/Closing at

the Paper Exit........................................1-73

[8] Adjusting the Paper Exit-Opening

Solenoid ................................................1-74

[9] Adjusting the Paper Exit-Opening Lower

Guide Plate............................................1-75

[10] Adjusting the Tension Of the Stacker

Paper exit Belt.......................................1-76

[11] Adjusting the Mount Location Of the

Upper Alignment Plates ........................1-76

[12] Adjusting the Tension of the Upper Align-

ment-Plates Drive Timing Belt ..............1-77

[13] Adjusting the Mount Location of the Lower

Alignment Plates(FS-108BM only)........ 1-78

[14] Adjusting the Tension of the Lower-

ALignment-Plate Drive Timing Belt.......1-79

[15] Adjusting the Stapling Position

(Flat Stapling)........................................1-79

[16] Adjusting the Stapler Vertical Positioning . 1-80
[17] Adjusting the Staple Orientation(Stapling-

and-Folding)(FS-108BM only) ..............1-82

[18] Adjusting the Staple Position(Stapling-and-

Folding)(FS-108BM only)......................1-83

[19] Adjusting the Angle Of The Folding

Stopper(FS-108BM only) ......................1-84

[20] Adjusting the Folding-Stopper Positions

(FS-108BM only) ...................................1-85

[21] Adjusting the Tension of the Stapler-

Movement Timing Belt ..........................1-86

[22] Adjusting the Tension of the Stapler-Rotaion

Timing Belt.............................................1-86

[23] Adjusting the Folding Force

(FS-108BM only) ...................................1-87

This section covers the structure,functions,operation and method of dis­assembling and assembling the machine.
Observe the following precautions when performing disassembly and as­sembly work.

1. Be sure to unplug the power cord before working on the machine.

2. Perform all reassembly work by reversing the order in which the com­ponent was disassembled,unless otherwise specified.

3. Do not lose small parts (screws,etc.) or insert them in the wrong place.

4. Install all parts completely before operating the machine.

5. Do not loosen the screws indicated as disallowed for removal.

CONTENTS

2. DIAGRAM

FS-108/FS-108BM ELECTRICAL PARTS LAYOUT

DRAWING....................................................................... 2-1

FS-108/FS-108BM CONNECTOR LA YOUT DRAWING ......2-4

FS-108/FS-108BM OVERALL WIRING DIAGRAM (1/3) ....... 2-7

FS-108/FS-108BM OVERALL WIRING DIAGRAM (2/3) ....... 2-8

FS-108/FS-108BM OVERALL WIRING DIAGRAM (3/3) ....... 2-9

FS-108/FS-108BM CONTROL-BOARD CIRCUIT

DIAGRAM (1/9).................................................... 2-10

FS-108/FS-108BM CONTROL-BOARD CIRCUIT

DIAGRAM (2/9).....................................................

FS-108/FS-108BM CONTROL-BOARD CIRCUIT

DIAGRAM (3/9).................................................... 2-12

FS-108/FS-108BM CONTROL-BOARD CIRCUIT

DIAGRAM (4/9).................................................... 2-13

FS-108/FS-108BM CONTROL-BOARD CIRCUIT

DIAGRAM (5/9).................................................... 2-14

FS-108/FS-108BM CONTROL-BOARD CIRCUIT

DIAGRAM (6/9).................................................... 2-15

FS-108/FS-108BM CONTROL-BOARD CIRCUIT

DIAGRAM (7/9).................................................... 2-16

FS-108/FS-108BM CONTROL-BOARD CIRCUIT

DIAGRAM (8/9).................................................... 2-17

FS-108/FS-108BM CONTROL-BOARD CIRCUIT
DIAGRAM (9
FS-108/FS-108BM CONNECTOR-BOARD CIRCUIT

DIAGRAM ............................................................2-19

FS-108/FS-108BM TIMING CHART (SORT MODE,

A4, 2-PAGE ORIGINAL, 5 COPIES, 1:1 RATIO) ......2-20

FS-108/FS-108BM TIMING CHART (2-STAPLE
MODE, A4, 2-PAGE ORIGINAL, 3 COPIES,

1:1 RATIO) ........................................................... 2-21

FS-108/FS-108BM TIMING CHART (STAPLING
AND FOLDING, A4R, 3-PAGE ORIGINAL, 2

COPIES, 1:1 RATIO, 1-1 MODE)........................ 2-22

/9)............................................................ 2-18

2-11

1

FS-108BM FS-108BM

FS-108/FS-108BM

Amount of Curll

Copy paper (5 sheets)

Fold height

Original Pages

A3R, 11x17R

0 to 5

11 to 16

6 to 10

25mm or less

Not specified*

50mm or less

A4R, 8.5x11R
25mm or less

Not specified*

B4, 8.5x14R
25mm or less
50mm or less

Not specified*

Not specified*

FS-108/FS-108BM PRODUCT SPECIFICATIONS

1. Type

FS-108: Finishing device implementing offset colla-

tion, stapling, and sub-tray eject

FS-108BM: Finishing device implementing offset colla-

tion, stapling, sub-tray eject, stapling-and­folding, and folding

2. Functions

Type of Paper: Same as for the main body.
Paper Size: A3R, B4R, F4R, A4R, A4, B5R, B5, A5R,

B6R.
B6R is not possible in off-set mode;
B5R, A5R, B6R are not possible in staple
mode. F4R, A4, B5R, B5, A5R, A5, B6R
are not available in booklet mode.

Paper Stacking Capacity:

Sub-tray exit mode:

Maximum 200 sheets (same-size sheets
only)

Non-Staple, Group, and Offset modes:

Maximum 1500 sheets (A3R, B4R, F4R)
Maximum 3000 sheets (B5R, B5, A4R, A4)
Maximum 500 sheets (B6R, A5R, A5)

Staple Mode: Maximum 1000 sheets

Main-Tray Capacity (same-size sheets only)

Original Pages

2 to 9
10 to 20
21 to 30
31 to 40
41 to 50

Other than A3R, 11x17R

100 stacks

50 stacks
30 stacks
25 stacks
20 stacks

A3R, 11x17R

50 stacks
50 stacks
30 stacks

25 stacks
20 stacks

Paper curling: Maximum 10mm

Booklet-mode folding level (FS-108BM only)

(For 80g/m

2

paper or equivalent, same-size sheets only)

* May be unf olded after e xit, pro vided that fold state can

be easily restored.

Amount of sort
off-setting: 30mm (when off-setting/grouping)
Tray: Main tray

Sub-tray
Booklet tray (FS-108BM only)

Booklet Mode (FS-108BM only):

• Stapling-and-folding + folding
20 booklets of 5 folded sheets each (20 pages/book­let; eq. to 400 pages)

• Folding
33 booklets of 3 folded sheets each (12 pages/book­let; eq. to 396 pages)

1-1

FS-108/FS-108BM

3. Staple Mode

Number of pages
which may be stapled:

50 sheets maximum* (80g/m
quality paper, 5mm and below)

* Maximum sheets can be set to 45, 40, or 35 in accor-

dance with paper quality and thickness.

Staple position: A = 8.5mm±3mm

(adjustment possible)
B = 8.5mm±3mm
C = 82.5mm±3mm
D = 8.5mm±3mm

(adjustment possible)
E = 14mm±3mm)

2

high-

6. Machine Data

Power Source:

24 VDC, 5 VDC (supplied from the
main body)

Maximum Power
Consumption: 100VA
Weight:
FS-108: Approximately 55kg
FS-108BM: Approximately 80kg
External Dimensions:

85

367

781656

1151

1095

Single staple (rear) Two staples Single staple

Booklet mode (stapling and folding)

(FS-108BM only)

@@@(front)

Staple capacity: 5000 staples/cartridge

4. Booklet Mode (FS-108BM only)

Stapling-and-folding:

Maximum 16 sheets (80g/m2 high-quality paper)
Maximum 15 sheets (80g/m
+ 1 sheet (200g/m

2

high-quality paper)

Folding: Maximum 3 sheets (80g/m2 high-quality paper)

2

high-quality paper)

7. Maintenance

Maintenance: Same as the main body.
Service Life: Same as main body.

8. Machine Operating Environment

Temperature: 10 to 30˚C
Humidity: 10 to 80% RH

These specifications are subject to change without notice.

5. Option

PI-108 (Sheet feeder)

1-2

CENTER CROSS-SECTION

Sub-tray

Shift Unit

Main Tray Paper Exit Unit

FS-108/FS-108BM

Gate
Sub-tray Gate

Stacker Unit

Booklet T ra y

Folding Stopper

By-pass Gate

Flat-Stapling Stopper

Stapler Unit

Area within dotted lines:
FS-108BM only

Stapling and
Folding Stopper

Folding Unit

1-3

FS-108/FS-108BM

DRIVE SYSTEM DIAGRAM

[1] Paper Conveyance Drive

Sub-tray Paper Exit Roller B

Conveyance Slide Shaft

Sub-tray Paper Exit Roller C

Sub-tray Paper Exit Roller A

Nip Paper Exit Roller

Conveyance Roller D

Conveyance Roller C

Conveyance Roller B

Conveyance Roller A

M1 (FNS Conveyance)

Paper Exit Roller

M7 (Paper Exit
Roller)

Intermediate Conveyance Roller

1-4

[2] Stacker Drive

FS-108/FS-108BM

Paper Exit Roller

Paper Exit Belts

Stacker Entrance Roller

Swivel Roller

Paper Exit Arms

[3] Folding Drive (FS-108BM only)

M7 (Paper Exit Roller)

Pulley

M13 (Stacker Entrance)

Folding Roller B

Folding Roller A

Folding Conveyance Roller

Folding Knife

M19 (Folding Knife)

Pressure Roller A

Pressure Roller B
Folding Conveyance Belts

M20 (Folding Conveyance)

1-5

FS-108/FS-108BM

PAPER CONVEYANCE PATH

[1] Paper Conveyance Path

The FNS (finisher) provides four paper paths, as shown in the diagram below.
Face-up and face-down inversion is handled by at the main-body side by the main body’s exit page inverter.

Sub-tray

Main T ra y

Booklet T ra y

Finishing

Sort, Group, Non-sort mode
Sub-tray mode

Staple mode
Booklet mode (FS-108BM only)

Paper Conveyance Paths

1-6

[2] Non-Sort Mode

Exit to main tray

A paper exited from the main body is conveyed and exited to the main tray.

FS-108/FS-108BM

Sub-tray Gate

Gate

Main T ra y

Paper Exit Roller

Conveyance Roller B

Conveyance Roller A

Conveyance Roller D

Conveyance Roller C

1-7

FS-108/FS-108BM

[3] Sort, Group Mode

Exit to the main tray

Paper exited from the main body is conveyed and exited to the main tray. This mode has an off-set function that allows each
page of the even-numbered sets to be exited with the paper shifted 30mm to the rear.

Off-set Function

(1) The odd-numbered pages are exited to the main tray with the image side face down.
(2) The even-numbered pages are shifted 30mm to the rear by the conveyance slide shaft of the shift unit and

then exited to the main tray.

Main T ra y

Paper Exit Roller

Shift Unit

Conveyance Slide Shaft

Conveyance Roller D

Gate

Sub-tray Gate

Conveyance Roller B

Conveyance Roller A

Conveyance Roller C

1-8

[4] Sub-tray Mode

The sub-tray gate opens. Paper exited from the main body is conveyed and exited to the sub-tray.

Sub-tray Paper Exit Roller C

Sub-tray

Sub-tray Paper Exit Roller B

Sub-tray Paper Exit Roller A

FS-108/FS-108BM

Sub-tray Gate

Conveyance Roller B

Conveyance Roller A

1-9

FS-108/FS-108BM

[5] Staple Mode

(1) The gate switches to the staple mode.
(2) For A4R paper and above, the paper exit opening opens.
(3) The first set of paper is conveyed and stacked.

1) The stacker section roller sends the paper to the flat-stapling stopper and the paper is lined up in the
lengthwise direction.

2) The upper alignment plate lines up paper in the widthwise direction.

3) Paper is stapled.

4) The first set is conveyed by the paper exit arm and exited to the main tray.

Paper Exit Opening

Conveyance Roller C

Main Tray

First Stapled Set

Paper Exit Belt

Stapler Unit

Intermediate Conveyance
Roller

Alignment Plate
/Upper

Gate

Sub-tray Gate

Conveyance Roller B

Conveyance Roller A

By-pass
Gate

Stacker Entrance
Roller

Swivel Roller

Flat-Stapling Stopper

Paper Exit Arm

1-10

FS-108/FS-108BM

(4) The second and subsequent sets of paper are conveyed and stacked.

1) The first page stops in the stack er entrance with the by-pass gate opened. The stack er entrance roller stops
to wait for the previous stack to be exited.

2) The by-pass gate is closed and the second page is stacked on top of the first.

3) Once the previous stack has exited, the stack entrance roller rotates and the first and second pages are
simultaneously sent to the stacker.

* The above steps (1) to (3) are for paper to a maximum of A4 size.

4) The stacker section roller sends the paper to the flat-stapling stopper and the paper is lined up in the
lengthwise direction.

5) The upper alignment plate lines up paper in the widthwise direction.

6) When all paper is conveyed to the stacker, the paper is stapled.

7) The second and subsequent sets are conveyed by the paper exit arm and the paper is exited to the main
tray.

Paper Exit Opening

Conveyance Roller C

Second Stapled Set

Main Tray

Intermediate
Conveyance Roller

Paper Exit Belt

Stapler Unit

Alignment Plate/Upper

Second Sheet

Sub-tray Gate

Gate

Conveyance Roller B

Conveyance Roller A

By-pass
Gate

First Sheet

Stacker Entrance Roller

Swivel Roller

Flat-Stapling Stopper

Paper Exit Arm

1-11

FS-108/FS-108BM

[6] Booklet Mode (FS-108BM only)

(1) The gate switches to the staple mode.
(2) The paper exit opening opens.
(3) The paper is conveyed and stacked.
(4) The stacker section roller sends the paper to the stapling-and-folding stopper and the paper is lined up in the

lengthwise direction.
(5) The upper and lower alignment plate lines up paper in the widthwise direction.
(6) If stapling-and-folding has been selected, staple the stack.
(7) Release the stapling-and-folding stopper and convey the stack to the folding unit by the paper exit belt.
(8) Convey the stack up to the folding stopper, fold it with the folding knife, and eject to the booklet tray.

Conveyance Roller C

Booklet Tray

Intermediate Conveyance Roller

Paper Exit Belt

Stapler Unit

Upper
Alignment Plate

Pressure Roller A

Folding Roller A

Gate

Sub-tray Gate

Conveyance Roller B

Conveyance Roller A

Stacker Entrance Roller

Swivel Roller

Alignment Plate/Lower

Stapling and Folding stopper

Folding Conveyance Roller

Pressure
Roller B

Folding Stopper

Folding Conveyance Belt

Folding
Roller B

Folding Knife

1-12

EXTERNAL SECTION

Screws

Hinge

Front Cover

[1] Composition (FS-108/FS-108BM)

FS-108/FS-108BM

Paper Exit Cover

Sub-tray

Main T ra y

Rear Cover

Paper Exit Stopper Plate

Booklet T ra y

[2] Disassembly and Reassembly

CAUTION: Be sure that the power cord has been un-

plugged from the outlet.

1. Removing and Reinstalling the Rear Cover
a. Procedure

(1) Remove the 5 set screws holding the rear cover

in place, and take off the cover.

Top Cover

Front Cover

Front Side Cover

2. Removing and Reinstalling the Front Cover
a. Procedure

(1) Open the front cover.
(2) Remove the 2 set screws holding the bottom

hinge in place, and take off the front cover.

Screws

Screws

Rear Cover

(2) Reinstall the rear cover in the opposite sequence

to removal.

(3) Reinstall the front cover in the opposite sequence

to removal.

1-13

FS-108/FS-108BM

Screw

Paper Exit Cover

Screw

3. Removing and Reinstalling the Top Cover
a. Procedure

(1) Remove the sub-tray.
(2) Open the paper exit cover.
(3) Remove the two caps.
(4) Open the front cover.
(5) Remove the 6 set screws holding the top cover

in place, and take off the cover.

Screws

Cap

4 Removing and Reinstalling the Paper Exit Co ver
a. Procedure

(1) Remove the top cover.
(2) Remove the 2 set screws holding the paper exit

cover in place, and tak e off the paper e xit cover.

Screws

(3) Reinstall the paper cover in the opposite se-

quence to removal.

(6) Reinstall the top cover in the opposite sequence

to removal.

1-14

FS-108/FS-108BM

Front Side
Cover

Screws

5. Removing and Reinstalling the Main Tray
a. Procedure

(1) Remove the rear cover.
(2) Detach the connector and remove the 2 set

screws holding motor M3 (tray up-down motor)
in place. Remove M3.

CAUTION: Support the main tray with your hand when

removing M3.

M3 (Tray Up-Down)

Screws

Connector

(3) Remove the 2 set screws holding the main tray

in place, and lift the main tray up and off.

Screws

6. Removing and Reattaching the Front Side Cover
a. Procedure

(1) Remove the 2 set screws holding the front side

cover in place, and take off the front side co ver.

(2) Reinstall the front side cover in the opposite se-

quence to removal.

Main Tray

(4) Reinstall the main tray in the opposite sequence

to removal.

1-15

FS-108/FS-108BM

Screws

Screws

Up-Down Stay

Wire Bracket

Wire Bracket

Screws

Screws

Screws

Rear Auxiliary
Side-Up-Down
Plate

Front Auxiliary
Side-Up-Down
Plate

7. Removing and Reinstalling the Paper Exit
Stopper Plate

a. Procedure

(1) Remove the following parts.

• Rear cover

• Main tray

• Booklet tray

• Front cover

• Front side cover

(2) Remove the 4 set screws holding the left and

right up-down covers in place, and remove these
two covers.

Screws

Screws

(3) Remove the 4 set screws from the front and rear

wire brackets (two screws at each bracket), and
then remove the up-down stay.

(4) Remove 8 set screws and tak e off the front and

rear auxiliary side-up-down plates.

Up-Down Covers

1-16

FS-108/FS-108BM

Press down

Wire Bracket

Wire Bracket

Screws

Screws

Up-Down Stay

(5) Remove the two plates (front and back plates)

at the booklet exit.

Plate

Screw

Plate

(6) Remove 13 more set screws, and take off the

paper exit stopper.

(7) Remove the up-down sta y . (See “Removing and

reattaching the up-down stay”.)

(8) Reinstall the stopper in the opposite sequence

to removal. But note the following caution.

CAUTION: Be sure to press down on the up-down stay

while tightening the 4 screws for the wire
brackets.

Paper Exit
Stopper Plate

Screws

Screws

Screws

Up-Down Stay

Screws

Screws

1-17

FS-108/FS-108BM

Conveyance Section

[1] Composition

Sub-tray Paper Exit Roller C
Sub-tray Paper Exit Roller B

FS-108/FS-108BM Rear

Sub-tray Paper Exit Roller A

Conveyance Roller B

Conveyance Roller A

Conveyance Roller C

Intermediate Conveyance Roller

M1 (FNS Conveyance)

Conveyance Slide Shaft

M7 (Paper Exit Roller)

Nip Paper Exit Roller

Paper Exit Roller
(Sponge Roller)

Conveyance Roller D

M13 (Stacker Entrance)

Stacker Entrance Roller

Paper Exit Belt

Area within dotted lines: FM-108BM only

Folding Conveyance Roller

Folding Conveyance Belt

M20 (Folding Conveyance)

Folding Roller A
Pressure Roller A

Pressure Roller B

Folding Roller B

1-18

FS-108/FS-108BM

Link Mechanism

M2 (Roller Shift)

M2 (Roller Shift)

Paper exit direction

Slide Shaft

Link Mechanism

Slide Shaft

30mm towards the direction
of the back side

[2] Mechanisms

1. Paper Conveyance

Paper conveyance is carried out by conveyance rollers A,
B, C, and D; the intermediate conveyance roller; the con­veyance slide shaft; and sub-tray paper exit rollers A, B,
and C. These components are driven b y M1 (FNS conv ey­ance) by means of a timing belt.

Stacking is implemented by the stacker entrance roller and
the swivel roller. These rollers are driven by the M13
(stacker entrance) by means of a timing belt.

Ejection to the main tray (following staple processing) is
implemented by the stacker paper exit belt arm and the
paper exit roller. These components are driven by the M7
(paper exit).

Ejection to the booklet tray is implemented by the folding
convey ance roller, the folding conve yance belt, the f olding
knife, f olding rollers A and B, and pressure rollers A and B.
The folding knife is driven by M19 (folding knife). The con­veyance belt, folding rollers, and pressure rollers are driven
by the M20 (folding conveyance) by means of a timing
belt.

2. Paper Path Switching

Gate

Sub-tray Gate

SD2

(Sub-tray Paper Exit)

By-pass Gate

SD5 (By-pass)

SD1 (Gate)

Path switching is carried out b y the gate, the sub-tray gate ,
and the by-pass gate. Each of these is controlled by the
ON/OFF action of a corresponding solenoid: SD1 (gate),
SD2 (sub-tray paper exit), and SD5 (b y-pass), respectively .

3. Shift Unit Sort Shift Operation

(1) Paper entering the shift unit is fed toward the

paper exit direction by the action of the slide
shaft.

(2) Driving by M2 (roller shift) causes the linkage to

shift the slide shaft and paper 30mm toward the
rear.

1-19

FS-108/FS-108BM

4. Stacker Unit

Alignment Plate/
Upper

Paper Exit
Belts

FS-108BM Only

M17 (Stapling and Folding Stopper Release)

Paper Exit Arms

Alignment Plate/Upper

M14
(Stapling and Folding Stopper)

M5
(Alignment
Plate/Upper)

Paper Alignment (Staple Mode (Flat Stapling))

Sheets conveyed into the stacker are aligned by the oscil­lation of the (front and rear) alignment plates/upper. The
alignment plates/upper are driven by M5 (alignment plate/
upper).

Paper Alignment (Booklet Mode (FS-108BM only))

Sheets conveyed into the stacker are aligned by the move­ment of the (front and rear) alignment plates/upper and
the (front and rear) alignment plates/lower . The alignment
plates/upper are driven by M5 (alignment plate/upper); the
alignment plates/lower are driven by M15 (alignment plate/
lower). The stapling-and-folding stopper is moved b y M14
(stapling-and-folding stopper) and is released by M17 (sta­pling-and-folding stopper release).

Paper Exiting

Stapled paper is sent to the paper exit by the paper exit
arm. The paper exit belt is driven b y M7 ( paper exit-roller).

Feeding to the Folding Unit (FS-108BM only)

M17 (stapling-and-folding stopper release) releases the
stapling-and-folding stopper and feeds the paper into the
folding unit.

Alignment Plate/
Lower

Alignment
Plate/Lower

M15
(Alignment Plate/
Lower)

Stapling and Folding Stopper

1-20

FS-108/FS-108BM

Conveyance
Roller B

Conveyance Roller A

Conveyance
Roller C

Conveyance Roller D

Paper Exit Rolle

r

Main T ra y

Paper Exit Opening

SD4 (Paper Exit Opening)

Nip Roller

Paper Exit Roller

SD4 (Paper Exit
Opening)

5. Paper Exit Opening Unit

M8

SD4 (Paper Exit Opening)

Paper Exit Opening

Nip Roller

(Paper Exit Opening)

a. Staple Mode and Booklet Mode Operation for

Paper Sizes A4R and Above

Because paper of this size juts out from the stacker, the
paper exit opening is held open from the start of copying
until the completion of stapling.

c. Pressure of the Paper Exit Roller

The paper exit roller turns more slowly than the convey­ance rollers (A, B, C, and D), and remains unengaged by
the nip roller except during ejection.
When paper reaches the paper exit opening, the paper
exit roller is engaged by the nip roller and the paper is
ejected to the main tray. Engagement and release is con­trolled by SD4 (paper exit opening).

b. Paper Exit of the Staple Mode (Flat Stapling)

Upon completion of stapling, the paperr exit closes, and
the paper is grasped and ejected to the main tray. The
opening and closing of the paper exit is controlled by M8
(paper exit opening).

M8 (Paper Exit Opening)

Paper Exit Opening

Open

Close

1-21

FS-108/FS-108BM

Sponge Roller

Match

Match

6. Folding by the Folding Unit (FS-108BM only)

Paper is conveyed to the folding stopper by the action of
the folding conveyance roller and the folding conveyance
belts, and is then folded by the action of the folding knife
and the folding rollers. The folding conveyance roller, the
folding conveyance belts, the folding rollers, and the pres­sure roller are driven by M20 (folding conveyance). M18
(folding stopper) drives the folding stopper. M19 (folding
knife) drives the folding knife.

M20
(Folding Conveyance)

Folding Rollers

M18
(Folding
Stopper)

Folding Conveyance Belts

[3] Disassembly and Reassembly

CAUTION: Be sure that the power cord has been un-

plugged from the outlet.

1. Replacing a Paper Exit Roller (Sponge Roller)
a. Procedure

(1) Run the copier in mode 47 (code 75-06) to lower

the main tray.

Sponge Roller

Main Tray

Folding
Paper-End Stopper

Paper

Folding Knife

Folding Knife

Folding Knife

M19 (Folding Knife)

(2) Insert the end of a screwdriver into the slot in

the sponge roller, and twist the screwdriver to
pry the roller off.

(3) Take the two halves of the new sponge roller

and align their indentations with the indentations
on the roller shaft.

(4) Press the two halves of the roller together until

the click into place.

1-22

FS-108/FS-108BM

Clamps

Wirings

M2 (Roller Shift) Connector

PS18 (Roller Shift HP)
Connector

Clamp Screw

Screws

Ground Wire
Fixing Screw

Shift Unit

Screws

2. Replacing an Intermediate Conveyance
Roller (Sponge Roller)

a. Procedure

(1) Open the front cover and pull out the stacker/

stapler unit.

(2) Insert the end of a screwdriver into the slot in

the sponge roller, and twist the screwdriver to
pry the roller off.

Sponge Rollers

3. Removing and Reinstalling the Shift Unit
a. Procedure

(1) Remove the following parts.

• Rear cover

• Top cover

• PI-108 (if installed)

(2) Detach the M2 (roller shift) and PS18 (roller shift

HP) connectors.

(3) Remove the wiring from the three clamps.

Sponge Roller

(3) Take the two halves of the new sponge roller

and align their indentations with the indentations
on the roller shaft.

(4) Press the two halves of the roller together so

that they click into place.

Match

Match

(4) Remove the ground wire fixing screw.
(5) Remove the clamp set screw.
(6) Remove 4 more set screws (see illustration).

1-23

FS-108/FS-108BM

Drive Belt

Pulley

Belt

Collar

E-ring

Gear

E-ring

Collar

Shaft Holder

(7) Remove 3 more set screws and remo ve the shift

pulley .

(8) Slide the conveyance slide shaft and take out

the shift unit.

Screws

Conveyance
Slide Shaft

Screw

Shift Pulley

(9) Reinstall the shift unit in the opposite sequence

to removal.

CAUTION: When reinstalling the shift unit, be sure to

align the conveyance slide shaft with the hole
in the shift pulley.

4. Removing and Reinstalling the Paper Exit-Opening
Unit

a. Procedure

(1) Remove the following parts.

• Rear cover

• Top cover

• Front side cover

• PI-108 (if installed)

• Shift unit
(2) Remove the pulley and its belt.
(3) Remove the E-ring, and then remove the collar,

the gear, and the drive belt.

(4) Remove the collar, E-ring, and shaft holder.

1-24

FS-108/FS-108BM

Spring

(5) Remove the clamp set screw and the ground

wire screw.

(6) Detach the SD4 (paper exit opening) and PS6

(paper exit-1) connectors.

(7) Remove the screw holding PS10 (paper exit-2)

to the unit. Remove PS10 and detach the con­nector.

CAUTION: When withdrawing the PS10, ensure that

needless force is not applied to the lever
below the PS10.

Clamp Screw

SD4 (Paper Exit
Opening) Connector

Ground Wire Screw

PS6 (Paper Exit-1)
Connector

(9) Open the front cover. Remove the front side E-

ring and the shaft holder.

E-ring

Shaft Holder

(10)Remove the spring.

PS10 (Paper Exit-2)

PS10 (Paper Exit-2)
Screw

(8) Remove the paper exit opening open-shut link

screw.

Paper Exit Opening
Open-Shut Link

Screw

1-25

FS-108/FS-108BM

Stacker/Stapler Unit

Rail Stopper Screw

Rail Stopper Screw

Screws

Screws

Cover

(11)Remove the 4 set screws holding the paper e xit-

opening cover in place, and take off the cover.

(12)Lift the paper exit-opening unit up and out.

Paper Exit-Opening Cover

Screws

Screws

Paper Exit-Opening Unit

(13)Reinstall the unit in the opposite sequence to

removal.

5. Removing and Reinstalling the Stacker/Stapler
Unit

a. Procedure

(1) Open the front cover and pull the stacker/sta-

pler unit part of the way out..

(2) Remove the 2 rail-stopper set screws . Then pull

the stacker/stapler unit all of the way out.

(3) Remove 4 set screws holding the cov er in place,

and remove the cover.

1-26

FS-108/FS-108BM

Cartridge Rails

Screws

Screws

Screws

Screw

Screw

Stacker/
Stapler Unit

(4) Remove the 2 set screws holding the bundle

guide arm to the stacker/stapler unit.

Screws

Bundle Guide Arm

(5) Detach the two connectors from the connector

board at the rear of the stacker/stapler unit.

(6) Remove the 4 set screws holding the cartridge

rails in place, and take out the cartridge rails.

(7) Remove the final 4 set screws holding the

stacker/stapler unit in place. Remove the
stacker/stapler unit.

Connector

Connector

(8) Reinstall the stacker/stapler unit in the opposite

sequence to removal.

1-27

FS-108/FS-108BM

Sub-tray

Sub-tray Paper Exit Roller C

PS1 (Sub-tray
Paper Exit)

Sub-tray Paper
Exit Roller A

Sub-tray
Paper Exit Roller B

M1 (FNS
Conveyance)

PS4
(FIN Entrance
Path)

Sub-tray

Conveyance
Roller A

Conveyance Roller B

[4] M1 (FNS Conveyance) Control

24V

24V
PGND
PGND

PS1IN

GND

PS4IN

GND

GND

GND

1-B6

5V

1-B1
1-B2
1-B3
1-B4
1-B5
1-B19
1-B20
1-B13
1-B14

5V

1-A12
1-A30
1-A21

1-A11

5V

1-A29
1-A20

5V

1-A13

5V

1-B18
1-A22

24V-IN

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

MS1

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

6-1

2-9
2-7

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

M1BRK

M1CONT

M1CLK

M1PLL

M1F/R

PS10IN

PS207IN

FNS CB

M1 (finisher convey ance) drives paper conve yance (if main­tray exit) and paper exit (if sub-tray exit) by means of con­veyance rollers A, B , C , D, convey ance slide shaft and the
sub-tray paper paper exit roller A, B , C . M1 is controlled by
the FNS CB (FNS control board).

M1

PS1

PS4

PS207

1. Operation
a. Interlock

FNS paper-conveyance drive control is initiated by the ON
signal from the main body START button. If MS1 (inter­lock) is OFF at this time, however, the finisher transmits
an error signal to the main body CB and does not begin
control.

b. PS207 (paper exit cover open/close detection)

control

As mentioned above, FNS paper-conveyance drive con­trol is initiated by the ON signal from the main body ST AR T
button. But if PS207 (paper exit cover open/close detec­tor) is [H] at this time (paper exit cover is open), the FNS
transmits an error signal to the main body CB and does
not begin control.

c. M1 (FNS conveyance) control

(1) Main tray paper exit operation

M1 (FNS conveyance) is set ON by the ON sig­nal of the START button and goes OFF a preset
time interval after PS4 (FIN entrance passage)
detects the trailing edge of the final copy paper.

(2) Sub-tray paper exit operation

M1 is set ON by the START button ON signal,
and begins with rapid rotation. M1 then switches
to slow rotation a preset time period after PS4
detects the trailing edge of the paper. M1 then
returns to rapid rotation to prepare for transport
of the next paper. M1 goes OFF a preset time
period after PS4 detects the trailing edge of the
final paper.

1-28

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) 24V IN (MS1 → FNS CB)

Outputs +24V if MS1 (interlock) is ON. The
power is supplied to all loads on the FNS side.

(5) PS207 IN (PS207 → FNS CB)

Inputs [L] when the sub-tray paper paper exit
cover is closed.

(6) PS4 IN (PS4 → FNS CB)

Comes ON and inputs [L] when paper passes
through the FNS inlet.

(7) MI PLL (M1 → FNS CB)

Monitors rotation status of M1 (FNS convey­ance).
[L] is input when M1 reaches the specified speed.

FS-108/FS-108BM

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M1 CONT (FNS CB → M1)

M1 (FNS conveyance) drive control signal.
[H]: OFF
[L]: ON

(5) M1 BRK (FNS CB → M1)

M1 (FNS conveyance) brake signal.
[H]: OFF
[L]: ON

(6) M1 CLK (FNS CB → M1)

Reference clock signal for controlling the speed
of M1 (FNS conveyance).

(7) M1 F/R (FNS CB → M1)

M1 (FNS conveyance) direction signal.
[H]: Counterclockwise
[L]: Clockwise

1-29

FS-108/FS-108BM

PS1

(Sub-tray

Paper Exit)

PS4

(FIN Entrance

Passage)

PS5 (Stacker Conveyance Passage)

PS6 (Paper Exit-1)

SD1 (Gate)

SD5

(By-pass)

Stacker Entrance Roller

SD2

(Sub-tray

Paper Exit)

[5] Gate Control

DRV

1-B26

24V

1-B27

DRV

24V

DRV

24V

PS4IN

GND

PS5IN

GND

PS6IN

GND

1-B24
1-B28

1-B23

1-A3

5V

1-A11
1-A29
1-A20

5V

1-A11
1-A28
1-A19

5V

1-A9
1-A27
1-A18

24V-IN

MS1

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

2-9
2-7

6-1

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

FNS CB

The paper conveyance path is switched by the ON/OFF
switching of SD1 (gate), SD2 (sub-tray paper exit), and
SD5 (by-pass), which are switched ON/OFF by the FNS
CB (FNS control board).

1. Operation

SD1

SD2

SD5

PS4

PS5

PS6

a. Main-tray Paper Exit Operation (Sort, Group, and

Non-Sort modes)

Paper moves through the shift unit and paper exits to the
main tray, passing through the sub-tray gate and the gate.
As both these gates direct the paper toward the shift-unit
side by default, SD2 (sub-tray paper exit) and SD1 (gate)
remain off.

1-30

FS-108/FS-108BM

Finishing

SD1

Sort, Group, and Non-Sort modes

Sub-tray mode

ON

SD5

ON

(OFF)

OFF

SD2

Staple mode, sizes A4,
B5 ( ) is for sizes other
than A4, B5

First paper of
2nd or
subsequent set

Others

Booklet mode (FS-108BM only)

ON

ON
ON

OFF

OFF

OFF
OFF

OFF
OFF

OFF

OFF
OFF

b. Stacker conveyance operation (Staple mode)

Paper moves through the stacker unit to the main tray,
passing the sub-tray gate, the gate, and the by-pass gate.
As the sub-tray gate is already set to the stacker side, SD2
(sub-tray paper paper exit) remains off.

(1) ON timing for SD1 (gate)

SD1 comes on when the START button ON sig­nal is received, setting the gate to the stacker
side. The FNS stands by for paper conveyance
to begin.

(2) Conveyance of paper sizes other than A4 and

B5
The gates direct the paper into the stacker . SD5
remains OFF, as paper moves without by-pass
toward the stacker entrance roller.

(3) Conveyance of A4 and B5 paper (first paper of

second and subsequent sets)
SD5 comes ON a preset time period after PS4
(FIN entrance passage) detects the trailing edge
of the final paper of the preceding set. This
switches the by-pass gate to the by-pass side,
so that the first paper of the new set is carried to
that side.

(4) Conveyance of A4 and B5 paper (second and

subsequent papers of second and subsequent
sets)
SD5 goes OFF a preset time period after PS4
detects the trailing edge of the first sheet of the
current set, closing the by-pass gate. The sec­ond sheet moves directly (without by-pass), to­gether with the first paper, to the stac ker entrance
roller.
SD5 remains off for the third and subsequent
sheets of the set, which move without by-pass
to the stacker.

(5) OFF timing for SD1 (gate)

SD1 goes OFF a preset time period after PS6
(paper exit-1) detects the final stapled set.

c. Stacker conveyance operation (Booklet mode)

(FS-108BM only)

Paper moves through the stacker unit to the folding unit,
passing the sub-tray gate, the gate, and the by-pass gate.
As the sub-tray gate is already set to the stacker side, SD2
remains off.

(1) ON timing for SD1 (gate)

SD1 comes on when the START button ON sig­nal is received, setting the gate to the stacker
side. The FNS stands by for paper conveyance
to begin.

(2) The gates direct the paper to the stacker. SD5

remains OFF, as paper moves without by-pass
toward the stacker entrance roller.

(3) OFF timing for SD1 (gate)

SD1 goes OFF a preset time period after PS6
(paper exit-1) detects the final stapled set.

d. Sub-tray paper exit operation

SD2 (sub-tray paper exit) comes on when the START but­ton ON signal is received, setting the sub-tray gate to the
sub-tray side. SD2 goes OFF a preset time period after
PS4 (FIN entrance passage) detects the final sheet.

1-31

FS-108/FS-108BM

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS1 IN (PS1 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the sub-tray paper paper exit.

(5) PS4 IN (PS4 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the FNS entrance.

(6) PS5 IN (PS5 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the stacker entrance.

(7) PS6 IN (PS6 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the main-tray paper paper exit.

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) SD1 DRV (FNS CB → SD1)

SD1 (gate) drive control signal.
[H]: OFF
[L]: ON

(5) SD2 DRV (FNS CB → SD2)

SD2 (sub-tray) drive control signal.
[H]: OFF
[L]: ON

(6) SD5 DRV (FNS CB → SD5)

SD5 (by-pass) drive control signal.
[H]: OFF
[L]: ON

1-32

[6] M13 (Stacker Entrance) Control

PS4

(FIN Entrance

Passage)

PS5 (Stacker Conveyance Passage)

PS6 (Paper Exit-1)

Stacker Entrance Roller

M13 (Stacker Entrance)

Swivel Roller

Flat-Stapling Stopper

Stapling and
Folding Stopper

FS-108/FS-108BM

24V
24V

24V

24V

21-A1
21-A2
21-A3
21-A4
21-A5
21-A6

25-A11
25-A7
25-A8
25-A9
25-A10
25-A12

M13

M13DRVA

M13DRVA
M13DRVB
M13DRVB

M13DRVA
M13DRVA
M13DRVB
M13DRVB

MS1

28-6

24V

2-9

5V
SGND
PGND
PGND

TXD

DTR

CTS

RXD

DSR

RTS

2-7
28-3
28-1

114-1

NC

114-2

NC

114-5

NC

114-3

NC

114-7

NC

114-6

NC

MAIN BODY

M13 (stacker entrance) drives the stacker entrance roller
and the swivel roller , thereby carrying out the following func­tions: conveyance of paper to the stacker; paper alignment;
and adjustment of staple waiting time. M13 is controlled
by the FNS CB (FNS control board) via the RB (relay
board).

4-A1
4-A2
4-A3
4-A4
4-A5
4-A6

6-1

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

M13DRVA
M13DRVA
M13DRVB
M13DRVB
24V
24V

24V-IN

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

5V

1-A11

PS4IN

GND

PS5IN

GND

1-A29
1-A20

5V

1-A11
1-A28
1-A19

PS4

PS5

FNS CBRB

1. Operation

Conveyance to the stacker varies according to paper size:
one method is used for A4 and B5, another is used for all
other sizes.

1-33

FS-108/FS-108BM

a. Conveyance to the stacker (sizes other than A4

or B5)

(1) M13 ON timing

M13 (stacker entrance) is set ON b y the START
button ON signal, and begins with rapid rota­tion. M13 then switches to slow rotation a pre­set time period after PS4 (FIN entrance passage)
detects the trailing edge of the first paper. M13
then returns to rapid rotation a preset period af­ter PS5 (stacker conveyance passage) detects
the trailing edge of the paper. This action is re­peated as necessary to transport all papers to
be stacked into the stacker.

(2) M13 OFF timing

M13 goes OFF a preset time period after PS5
(stacker conveyance passage) detects the trail­ing edge of the final paper set.

b. Conveyance to the stacker (A4 and B5 sizes)

(1) First set

Paper for the first set to be stapled is conveyed
in the same way as other paper sizes.

(2) First paper of second and subsequent sets

M13 goes OFF a preset time period after PS4
(FIN entrance passage) detects the trailing edge
of the first paper for the second or subsequent
set, and the paper moves into the by-pass . This
prevents paper from moving into the stacker
while stapling of the previous set is still in
progress.

(3) Second and subsequent papers of second and

subsequent sets
M13 resumes slow rotation a preset time period
after PS4 detects the trailing edge of the sec­ond paper of the set. This causes the first and
second papers to move together (one atop the
other) into the stacker. M13 switches to rapid
rotation a preset time period after PS5 (stacker
conveyance passage) detects the trailing edge
of the first and second papers, so that it is ready
to handle the third paper of the set when it ar­rives from the main body. Third and subsequent
papers for the set are then conveyed in the same
way as the papers in the first set.

c. Paper alignment (trailing-edge alignment)

For operation in staple mode:
The swivel roller adjusts the position of each paper (one
paper at a time) within the stacker.
For operation in booklet mode (FS-108BM only): The sta­pling & folding stopper is moved and set into appropriate
position. The swivel roller adjusts the position of each pa­per (one paper at a time).

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS4 IN (PS4 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the FNS entrance.

(5) PS5 IN (PS5 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the stacker entrance.

(6) PS6 IN (PS6 → FNS CB)

Comes ON ([L]) when paper is detected at the
main-tray paper paper exit.

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M13 DRV A,A / M13 DR V B ,B (FNS CB → RB

→ M13)
M13 (stacker entrance) drive control signals.

1-34

[7] M5 (Alignment Plate/Upper) Control

Alignment
Plate/Upper

PS5

(Stacker Conveyance

Passage)

M5 (Alignment Plate/Upper)

FS-108/FS-108BM

M5DRVA
M5DRVA
M5DRVB
M5DRVB

PS 8IN

PS8IN

GND

24V

24V
M5DRVA
M5DRVA
M5DRVB
M5DRVB

21-A15
21-A16
21-A17
21-A18

21-B26

5V

25-A5
25-A3
25-A1

25-B2
25-B1
25-B6
25-B5
25-B4
25-B3

M5

PS8

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

PS5

MS1

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

2-9
2-7

4-A15
4-A16
4-A17
4-A18

4-B26

1-A10
1-A28
1-A19

6-1

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

FNS CBRB

M5DRVA
M5DRVA
M5DRVB
M5DRVB

PS 8IN

M5 (alignment plate/upper) aligns the paper widthwise in
the stacker by opening and closing the alignment plates/
upper. M5 is controlled by the FNS CB (FNS control board)
via the RB (relay board).

1. Operation

At start-up, the alignment plates/upper are stationary at
the ON position of PS8 (alignment-plate/upper HP). A speci­fied time period after PS5 (stacker conveyance passage)
detects the paper trailing edge, M5 begins rotation so as
to close the plates. After another specified interval it opens
the plates. This cycle repeats for each paper.

5V
PS5IN
GND

24V-IN

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS5 IN (PS5 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the stacker entrance.

(5) PS8 IN (PS8 → RB → FNS CB)

Detects the position of the upper alignment
plates. [L] when the plates are at home position.

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M5 DRV A ,A, B,B (FNS CB → RB → M5)

M5 (alignment plate/upper) drive control signals.

1-35

FS-108/FS-108BM

Alignment
Plate/Upper

PS5

(Stacker Conveyance

Passage)

Alignment Plate/
Lower

M5 (Alignment Plate/Upper)

M15 (Alignment Plate/Lower)

[8] M15 (Alignment Plate/Lower) Control (FS-108BM only)

PS24

M15

27-3
27-2
27-1

27-4
27-5
27-6
27-7
27-8
27-9

PS24IN
GND

24V
24V
M15DRVA
M15DRVA
M15DRVB
M15DRVB

M15DRVA
M15DRVA
M15DRVB
M15DRVB

PS24IN

22-A5
22-A6
22-A7
22-A8

22-B5

5V

M15 (alignment plate/lower) aligns the stapling-and-fold­ing position by opening and closing the alignment plates/
lower. M15 is controlled by the FNS CB (finisher control
board) via the RB (relay board).

MS1

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

1-A10

PS5IN

GND

5V

1-A28
1-A19

PS5

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

M15DRVA

5-A5

M15DRVA

5-A6

M15DRVB

5-A7

M15DRVB

5-A8

PS24IN

5-B5

24V-IN

6-1

6-3

2-9
2-7

6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

FNS CBRB

1. Operation

At start-up, the alignment plates/lower are stationary at
the ON position of PS24 (alignment-plate/lower HP). A
specified time period after PS5 (stacker conveyance pas­sage) detects the paper trailing edge, M15 begins rotation
so as to close the plates. After another specified interval it
opens the plates. This cycle repeats for each paper.

1-36

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS5 IN (PS5 → FNS CB)

Comes ON ( [L]) when paper passage is de­tected at the stacker entrance.

(5) PS24 IN (PS24 → connector board → FNS CB)

Detects the position of the lower alignment
plates. [L] when the plates are at home position.

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M15 DRV A,A,B,B (FNS CB → RB → M15)

M15 (alignment plate/lower) drive signals.

FS-108/FS-108BM

1-37

FS-108/FS-108BM

PS4
(FIN Entrance
Passage)

PS18 (Roller Shift HP)

M2 (Roller Shift)

Conveyance Slide Shaft

Paper Exit Roller

[9] M2 (Roller Shift) Control

24V-IN

6-1

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

M2DRV

PS18IN

FNS CB

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

MS1

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

2-9
2-7

When running in Sort or Group mode, the FNS carries out
shifting of paper. Shifting is driven b y M2 (roller shift), which
is controlled by the FNS CB (FNS control board).

1. Operation

If operation is in Sort or Group mode, M2 (roller shift) comes
ON a predetermined time period after PS4 (FIN entrance
passage) detects the trailing edge of a paper that needs to
be shifted.
Rotation of M2 starts shifting of the conveyance slide shaft,
while rotation of M1 (FNS conveyance) causes the shaft
to turn, so that shifting and conveyance occur simulta­neously. PS18 (roller-shift HP) comes ON when the shaft
has been fully shifted, causing M2 to go OFF.
A specified time period after PS4 goes off, M2 comes back
ON and returns the conveyance slide shaft to its original
position. PS18 (roller-shift HP) goes OFF when the shaft
has returned all the way, causing M2 to go OFF again.
This operation is repeated as necessary to shift paper as it
moves toward the exit roller.

PS4IN

GND

GND

24V

5V

5V

1-A2
1-B29

1-A11
1-A29
1-A20

1-A5
1-A23
1-A14

M2

PS4

PS18

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS4 IN (PS4 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the FNS entrance.

(5) PS18 IN (PS18 → FNS CB)

Roller-shift position detection signal.
[L]→[H]: Forward position
[H]→[L]: Back position

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3 DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M2 DRV (FNS CB → M2)

M2 (roller-shift motor) drive control signal.
[H]: ON
[L]: OFF

1-38

[10] M7 (Paper Exit Roller) Control

Paper Exit Roller
(Sponge Roller)

PS6 (Paper Exit-1)

M7 (Paper Exit Roller)

PS10 (Paper Exit-2)

PS9 (Paper Exit-Belt HP)

Paper Exit Belt

Paper Exit
Arm

FS-108/FS-108BM

PS9IN

GND

21-B27

5V

25-A6
25-A4
25-A2

PS9

PS 9IN

MS1

28-6

24V

SGND
PGND
PGND

TXD

DTR

CTS

RXD

DSR

RTS

2-9

5V

2-7
28-3
28-1

114-1

NC

114-2

NC

114-5

NC

114-3

NC

114-7

NC

114-6

NC

MAIN BODY

The paper exit belt ejects paper from the stacker , while the
paper exit roller ejects the paper from the FNS. M7 (paper
exit roller) drives both the belt and the roller. M7 is con­trolled by the FNS CB (FNS control board).

4-B27

6-1

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

PS 9IN

24V-IN

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

1-B7

5V

1-B8

M7P/S

M7H/L

M7LD
PGND
PGND

24V
24V

M7F/R

PS4IN

GND

GND

1-B9
1-B10
1-B11
1-B16
1-B17
1-B21
1-B22
1-B12

5V

1-A11
1-A29
1-A20

5V

1-A8
1-A26
1-A17

M7

PS4

PS10

M7CLK

PS10IN

FNS CBRB

1. Operation
a. Sort, Group, and Non-Sort modes

b. Staple mode (flat stapling)

c. Booklet mode

M7 (paper exit roller) starts turning when PS4 (FIN en­trance passage) detects the leading edge of a paper. M7
goes off when PS10 (paper exit-2) detects paper exit of
the paper, unless an FNS start signal has already been
received from the main body.

M7 starts running when stapling is finished, and stops when
PS9 (paper exit-belt HP) comes ON.

M7 starts running in reverse when stapling is finished, and
stops when PS9 (paper exit-belt HP) comes ON.

1-39

FS-108/FS-108BM

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS4 IN (PS4 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the FNS entrance.

(5) PS9 IN (PS9 → RB → FNS CB)

Comes ON ([L]) when the paper exit belt is in
home position.

(6) PS10 IN (PS10 → FNS CB)

Comes ON ( [L]) when paper is detected at the
FNS paper exit.

(7) M7 LD (M7 → FNS CB)

M7 rotational status detection signal. This sig­nal becomes [L] when M7 reaches the set speed.

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M7 P/S (FNS CB→ M7)

M7 (paper exit roller) drive control signal.
[H]: OFF
[L]: ON

(5) M7 CLK (FNS CB → M7)

M7 (paper exit roller) speed-adjustment clock
signal.

(6) M7 H/L (FNS CB → M7)

Reference clock signal for controlling the speed
of M7 (paper exit roller).
[H]: Slow
[L]: Fast

(7) M7 F/R (FNS CB → M7)

M7 (paper exit roller) rotation direction control
signal.
[H]: Counterclockwise
[L]: Clockwise

1-40

[11] SD4 (Paper Exit Opening) Control

Nip Paper
Exit Roller

PS6 (Paper Exit-1)

SD4
(Paper Exit
Opening)

PS10 (Paper
Exit-2)

PS4 (FIN Entrance Roller)

Conveyance Roller C

Conveyance Roller A

Conveyance Roller B

Conveyance Roller D

Paper Exit Roller
(Sponge Roller)

SD4

MS1

28-6

24V

SGND
PGND
PGND

2-9

5V

2-7
28-3
28-1

1-B25
1-A4

6-1

6-3
6-4
6-5
6-6

SD4 DRV
24V

24V-IN

5V
SGND
PGND
PGND

PS6IN

GND

PS10IN

GND

PS12IN

GND

FS-108/FS-108BM

5V

1-A9
1-A27
1-A18

5V

1-A8
1-A26
1-A17

5V

1-A7
1-A25
1-A16

PS6

PS10

PS12

114-1

TXD

NC

114-2

DTR

NC

114-5

CTS

NC

114-3

RXD

NC

114-7

DSR

NC

114-6

RTS

NC

MAIN BODY

SD4 (paper exit opening) controls engagement by the nip
paper exit roller. SD4 is controlled by the FNS CB (FNS
control board).

1. Operation

When ejection is not in progress, a gap is maintained be­tween the nip paper exit roller and the paper exit roller so
as to prevent paper jams at the paper e xit. At time of ejec­tion, howev er, SD4 comes ON, inclining the nip paper exit
roller against the paper exit roller so that the gap is closed.

a. SD4 ON timing

(1) Sort, Group, and Non-Sort modes

SD4 comes ON a preset time period after PS10
(paper exit-2) detects the leading edge of the
sheet.

(2) Staple mode

SD4 comes ON a preset time period following
completion of stapling.

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

FNS CB

b. SD4 OFF timing

(1) Sort, Group, and Non-Sort modes

(2) Staple mode

SD4 goes OFF a preset time period after PS10
(paper exit-2) detects the trailing edge of the
paper.

SD4 goes OFF a preset time period after PS6
(paper exit-1) detects the trailing edge of the
paper set.

1-41

FS-108/FS-108BM

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS6 IN (PS6 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the FNS paper exit.

(5) PS10 IN (PS10 → FNS CB)

Comes ON ([L]) when paper passage is detected
at the FNS paper exit.

(6) PS12 IN (PS12 → FNS CB)

Detects open/closed state of the paper exit open­ing.
[H]→[L]: Closed
[L]→[H]: Open

b. Output signals

(1) RXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) SD4 DRV (FNS CB → SD4)

SD4 (paper exit opening) drive control signal.
[H]: OFF
[L]: ON

1-42

FS-108/FS-108BM

[12] M8 (Paper Exit Opening) Control

24V-IN

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

MS1

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

6-1

2-9
2-7

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

M8DRV

PS12IN

FNS CB

M8 (paper exit opening) controls opening and closing of
the paper exit by means of a linkage mechanism. M8 is
controlled by the FNS CB (FNS control board).

1. Operation

If large paper is being stapled, M8 comes on when the
START button ON signal is received, causing the paper
exit to open. Upon completion of stapling, the stapling-com­pleted signal from the FNS CB causes the paper exit to
close, and the stapled set is exited. The status of the pa­per exit opening is detected by PS12 (paper exit opening).

M8 (Paper Exit Opening)

Paper Exit Opening

24V

GND

1-A1
1-B30

5V

1-A7
1-A25
1-A16

PS12
(Paper Exit
Opening)

M8

PS12

When paper convey­ing to Stacker

Open
Closed

Open

Staple (not A4 or B5)

Staple (A4, B5)

Of-fset
Booklet

When Copy
Starts

Open
Closed

Closed

Open

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS12 IN (PS12 → FNS CB)

Detects open/closed state of the paper exit open­ing.
[H]→[L]: Closed
[L]→[H]: Open

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M8 DRV (FNS CB → M8)

M8 (paper exit opening) drive control signal.
[H]: ON
[L]: OFF

When paper
exit to the tray

Closed
Closed

Closed
Open

1-43

FS-108/FS-108BM

Stapler UNIT

[1] Composition

PS23 (Stapling and Folding Stopper HP)

M14
(Stapling and
Folding Stopper)

Clincher-F

Flat-Stapling Stopper

M11 (Stapler Movement)

Cincher-R

Flat-Stapling Stopper

M4 (Stapler Rotation)

M17
(Stapling and Folding Stopper)

Stapling and Folding Stopper

Stapler-R

PS14 (Stapler Rotation HP)

PS11 (Stapler Movement)

Stapler-F

1-44

FS-108/FS-108BM

M11 (Stapler Movement)

M4

(Stapler Rotation)

[2] Mechanism

1. Single staple (front)

Stapler-F and clincher-F move to the staple position, driven
by M11 (stapler movement). After mo ving into position, thy
staple the stacked paper.

M11 (Stapler Movement)

2. Single staple (rear)

Stapler-R and clincher-R slide into the staple position. M11
(stapler movement) and M4 (stapler rotation) control the
motion.
Stapler-R and clincher-R rotate and move to the staple
position.
Rotation is driven by M4 (stapler rotation).
Stapler-R and clincher-R staple the stacked paper.

1-45

FS-108/FS-108BM

Clincher-R

M4

(Stapler Rotation)

Stapler-R

Stapler-F

Clincher-F

M11 (Stapler Movement)

M17 (Stapling and Folding Stopper release)

M14

(Stapling and Folding

Stopper)

3. Two staples (flat)

Stapler-F, stapler-R, clincher-F, and clincher-R move into
position and staple the stacked paper in two locations.
Stapler-F and clincher-F are driven by M11 (stapler mov e­ment). Stapler-R and clincher-R are driven by M11 and
M4 (stapler rotation).

M11 (Stapler Movement)

M4

(Stapler Rotation)

4. Two staples (staple & fold) (FS-108BM only)

Stapler F, stapler R, clincher F, and clincher R move into
position.
Paper is transported to the stapling-and-folding stopper,
and then aligned by the action of the upper and lower align­ment plates. The paper is then stapled in two locations.
Stapler-F and clincher-F are driven by M11 (stapler move­ment). Stapler-R and clincher-R are driven by M11 and
M4 (stapler rotation).

1-46

FS-108/FS-108BM

5. Operation of the flat-stapling and stapling-and­folding stopper (FS-108BM only)

The flat-stapling stopper is held set while the stapling-and­folding stopper unit is at home position. The flat-stapling
stopper is released by a spring when the stapling-and-fold­ing stopper unit is moved out of home position by the ac­tion of M14 (stapling-and-folding stopper).

M14

Spring

PS23
(Stapling and
Folding Stopper
HP)

Flat-Stapling Stopper

Staple position

(Stapling and Folding
Stopper)

Stapling and
Folding Stopper Unit

Stapling and
Folding Stopper

For stapling-and-folding oper ation: P aper is transported up
to the stapling-and-folding stopper for stapling. When sta­pling is completed, M17 releases the stopper and the pa­per set moves to the folding unit. Setting and releasing of
the stopper is repeated for each paper set.
Return of the staple paper-end stopper to home position
resets the flat-stapling stopper.

Staple position

When the stapling-and-folding stopper unit has mov ed into
the predetermined position, it is set in place by M17 (sta­pling-and-folding stopper release).

M17 (Stapling and Folding Stopper Release)

Stapling and Folding Stopper

Released

Set

1-47

FS-108/FS-108BM

Clincher (F, R)

PS30 (Clincher-HP/R)
PS33 (Clincher-HP/F)

M21 (Clincher/R)
M23 (Clincher/F)

Stapler (F, R)

M22 (Stapler/R)
M24 (Stapler/F)

SW1 (Cartridge/R Detection/R)
SW3 (Cartridge/F Detection/F)

SW2 (Staple Detection/R)
SW4 (Staple Detection/F)

PS31 (Stapler-HP/R)
PS34 (Stapler-HP/F)

PS32 (Clincher Timing/R)
PS35 (Clincher Timing/F)

6. Stapling operation

Each stapler houses a stapler motor, and each clincher
houses a clincher motor. Motors M24 (stapler/F) and M22
(stapler/R) eject the staples, while motors M23 (clincher/
F) and M21 (clincher/R) bend the staples.

Eject staple.

Clincher

Stapler

Clincher

Bend staple.

Close staple.

Stapler

SW1 (cartridge-R detection) and SW3 (cartridge-F detec­tion) detect presence (and correct setting) or absence (or
improper setting) of the respective staple cartridges. SW2
(staple detection/R) and SW4 (staple detection/F) come
ON when the amount of staples in the respective cartridge
runs low.

The timing for staple clinching is controlled by stapler-in­ternal sensors PS32 (clincher-timing/R) and PS35
(clincher-timing/F). Switching ON of PS32 and PS35
causes motors M21 and M23 (within the clinchers) to op­erate, initiating the clinch action.
Motor M11 (stapler movement) controls the mov ement (dis­placement) of both staplers and both clinchers, while mo­tor M4 (stapler rotation) controls the rotation of stapler-R
and clincher-R. PS11 (stapler mo v ement HP) detects sta­pler movement (displacement), and PS14 (stapler rotation
HP) detects stapler rotation.

1-48

FS-108/FS-108BM

Screw

Connector

Connector

Clincher

[3] Disassembly and Reassembly

CAUTION: Be sure that the power cord has been un-

plugged from the outlet.

1. Exchanging the clincher

a. Procedure

(1) Remove the front cover.
(2) Pull out the stacker/slider unit by pulling on the

handle.

(3) Remove the 2 rail-stopper set screws.

Rail Stopper Screw

(5) Detach the connector from the clincher you wish

to replace, and remove the 4 set screws holding
the clincher in place.

(6) Lift the clincher up and out.

Stacker/Stapler Unit

Rail Stopper Screw

(4) Remove the 4 set screws holding the cover in

place, and remove the cover.

Screws

(7) To install the new clincher, carry out the above

sequence in reverse.

(8) Adjust the stapler vertical positioning. (See page

1-81, Adjusting the Stapler V ertical Positioning”).

Cover

Screws

1-49

FS-108/FS-108BM

Stapler

2. Removing and Reinstalling a Stapler
a. Procedure

(1) Remove the front cover.
(2) Pull out the stacker/slider unit by pulling on the

handle.
(3) Remove the cartridge from the stapler.
(4) Remove the set screw holding the connector

cover in place, and remo ve the connector cov er.

Screw

Cover

(6) Lift the stapler slightly and remove it.

(7) Reinstall in the opposite sequence to removal.
(8) Adjust the stapler vertical positioning. (See page

1-81, Adjusting the Stapler V ertical P ositioning”).

(5) Detach the stapler connector (if stapler-R, CN-

202; if stapler-F, CN-204), and remove the 4 set

screws holding the stapler in place.

Screws

(If Stapler-R, Connector CN-202
If Stapler-F, Connector CN-204)

Connector

1-50

3. Clearing a Stapler Jam
a. Procedure

(1) Open the front cover.
(2) Pull out the stacker/ slider unit by pulling on the

handle.

(3) Remove the cartridge from the stapler.

FS-108/FS-108BM

Cartridges

(4) Raise the cartridge cover.
(5) Remove the jammed staple(s).

Cover

Cartridge

(6) Reinstall in the opposite sequence to removal.

1-51

FS-108/FS-108BM

[4] Stapler Control

PS31

PS32

SW1

SW2

M22

PS30

M21

PS34

PS35

SW3

SW4

M24

PS33

M23

5V
PS31IN
GND

5V
PS32IN
GND

5V
5V IN

5V
5V IN

M22DRV F
M22DRV R

5V
PS30IN
GND

M21DRV F
M21DRV R

5V
PS34IN
GND

5V
PS35IN
GND

5V
5V IN

5V
5V IN

M24DRV F
M24DRV R

5V
PS33IN
GND

M23DRV F
M23DRV R

/RESET

SPCH

SNCH

/SHOME

/READY

/BUSY

/CLRREQ

/START

/CLR

SPCH
SNCH

/SHOME

/RESET

SPCH
SNCH

/SHOME

/READY

/BUSY

/CLRREQ

/START

/CLR

SPCH
SNCH

/SHOME

PS24

201-A9
201-A10
201-A11
201-B1
201-B5
201-B6
201-B7
201-B8
201-B9

202-B3
202-B4
202-B6

203-A9
203-A10
203-A11
203-B1
203-B5
203-B6
203-B7
203-B8
203-B9

204-B3
204-B4
204-B6

24-A7
24-B5
24-B6
24-B8
24-A11
24-B1
24-B2
24-B3
24-B4

23-A4
23-A3
23-A1

28-A7
28-B6
28-B7
28-B9
28-B1
28-B2
28-B3
28-B4
28-B5

23-B14
23-B15
23-B17

27-3
27-2
27-1

/RESET
SPCH
SNCH
/SHOME
/READY
/BUSY
/CLRREQ
/START
/CLR

SPCH
SNCH
/SHOME

/RESET
SPCH
SNCH
/SHOME
/READY
/BUSY
/CLRREQ
/START
/CLR

SPCH
SNCH
/SHOME

5V
PS24IN
GND

/RESET

/READY

/CLRREQ

/START

/RESET
/READY

/CLRREQ

/START

PS11IN

PS14IN

M14DRVA

M14DRVA
M14DRVB
M14DRVB

M17_12V

M17_CONT

PS21IN
PS23IN
PS24IN

PS11IN

PS14IN

M4DRVA

M4DRVA
M4DRVB
M4DRVB

M11DRVA

M11DRVA
M11DRVB
M11DRVB

M14DRVA
M14DRVA
M14DRVB
M14DRVB

M17DRV

RB

/BUSY

/CLR

/BUSY

GND

GND

24V
24V

24V
24V

24V
24V

12V

26-A3
26-A2
26-A1

26-B5
26-B6
26-B7

21-B1
21-B5
21-B6
21-B7
21-B8
21-B9

21-B13
21-B17
21-B18
21-B19
21-B20

21-B28
21-B29

22-A1
22-A2
22-A3
22-A4
22-B1
22-B2
22-B3
22-B4
22-B5

5V

25-B8
25-B10
25-B12

5V

24-B11
24-B10
24-B9

23-A11
23-A12
23-A13
23-A14
23-A15
23-A16

23-B7
23-B6
23-B5
23-B4
23-B3
23-B2

26-B4
26-B3
26-A4
26-A5
26-A6
26-A7

117-2
117-1

5V

PS21IN

GND

5V

PS23IN

GND

PS11

PS14

M4

M11

M14

M17

PS21

PS23

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

MS1

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

2-9
2-7

4-B1
4-B5
4-B6
4-B7
4-B8
4-B9

4-B13
4-B17
4-B18
4-B19
4-B20

4-B28
4-B29

5-A1
5-A2
5-A3
5-A4
5-B1
5-B2
5-B3
5-B4
5-B5

6-1

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

R/RESET
R/READY
R/BUSY
R/CLRREQ
R/START
R/CLR

F/RESET
F/READY
F/BUSY
F/CLRREQ
F/START

PS11IN
PS14IN

M14DRVA
M14DRVA
M14DRVB
M14DRVB
M17_12V
M17_CONT
PS21IN
PS23IN
PS24IN

24V-IN

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

FNS CB

M11 (stapler movement) and M4 (stapler rotation) move
the stapler(s) and clincher(s) into position in accordance
with the selected stapling mode. Once in position, the
stapler(s) and clincher(s) execute stapling. A single sta­pling cycle is detected by ON-OFF-ON activation of the
various stapler and clincher home-position sensors; spe­cifically: PS31 (stapler HP/R), PS34 (stapler HP/F), PS30
(clincher HP/R), and PS33 (clincher HP/F). Operation is
controlled by the FNS CB (FNS control board) via the RB
(relay board).

1. Operation
a. Single-staple movement control (front)

M11 (stapler movement) comes ON when the main body
issues the START button ON signal, moves stapler-F and
clincher-F to the predetermined positions, and then stops.
When single-staple mode is completed, M11 moves the
staplers and clinchers back to the ON position of PS11
(stapler movement HP) and then stops.

1-52

FS-108/FS-108BM

b. Single-staple movement control (rear)

M11 (stapler movement) and M4 (staple rotation) come
ON when the main body issues the START button ON sig­nal, move stapler-R and clincher-R to the predetermined
positions, and then stop. When single-staple mode is com­pleted, M11 and M4 move the stapler and clincher back to
the PS11 (stapler movement HP) and PS14 (stapler rota­tion HP) ON positions, and then stop.

c. Two-staple movement control

M11 (stapler movement) and M4 (staple rotation) come
ON when the main body issues the START button ON sig­nal, move the staplers and clinchers to the predetermined
positions, and then stops. When two-staple mode is com­pleted, M11 and M4 moves the staplers and clinchers back
to the ON position of PS11 (stapler movement HP) and
then stops.

d. Control of the stapling-and-folding stopper

(stapling & folding) (FS-108BM only)

On receipt of the START button ON signal, the stapling­and-folding stopper is moved and set into position. M14
(stapling-and-folding stopper) moves the stopper into po­sition, and M17 (stapling-and-folding stopper release) sets
it. When stapling action is completed, M17 releases the
stopper and the papers move to the folding unit. Setting
and releasing of the stopper is repeated for each paper
set (each set of papers).
When PS25 (folding exit) detects exiting of the final paper
set, M14 returns the stopper to its home position. Arrival at
home position is detected by P23 (stapling-and-folding
stopper HP).

f. Stapler action control

Upon closing of the alignment plates/upper and alignment
plates/lower (if booklet mode), M22 (stapler/R) and M24
(staple/F) come ON, causing the staple-eject plates to be­gin stapling. As the stapling oper ation progresses, stapler­internal sensors PS32 (clincher timing/R) and PS35
(clincher timing/F) come ON, causing clincher-internal
motors M21 (clincher/R) and M23 (clincher/F) to come ON,
thereby initiating the clinching action.
Staple action is completed when the following HP sensors
have come ON, detecting home positions: PS31 (stapler
HP/R), PS34 (stapler HP/F), PS30 (clincher HP/R), and
PS33 (clincher HP/F).
A staple-jam condition is detected if PS31, PS34, PS30,
or PS33 fails to come back ON within a preset time period
after going OFF. M22, M24, M21, and M23 turn in reverse
until the corresponding components have returned to home
position (until PS31, PS34, PS30, and PS33 come ON).
Control of these operations is implemented by the FNS
CB (FNS control board) via the RB (relay board).

g. Cartridge detection

Stapler-internal switches SW1 (cartridge detection/R) and
SW3 (cartridge detection/F) detect the presence or ab­sence of the respective cartridge. The switch outputs an
error signal if the cartridge is missing or is improperly set.

h. Staple-low detection

SW2 (staple detection/R) or SW4 (staple detection/F)
comes ON and outputs an error signal when the amount
of staples in the respective cartridge runs low.

e. Control of the stapler paper-end stopper (folding)

(FS-108BM only)

On receipt of the START button ON signal, the stapling­and-folding stopper is moved and set into position. M14
(stapling-and-folding stopper) moves the stopper into po­sition, and M17 (stapling-and-folding stopper release) sets
it.
A preset period after PS5 (stacker conveyance passage)
detects the final paper set, M17 releases the stopper and
the papers move to the folding unit. Setting and releasing
of the stopper is repeated for each paper set.
A preset period after PS25 (folding exit) detects the pas­sage of the final paper set, M14 returns the stopper to its
home position. Arrival at home position is detected b y P23
(stapling-and-folding stopper HP).

1-53

FS-108/FS-108BM

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) RTS (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) DTR (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS11 IN (PS11 → RB → FNS CB)

ON (L) when staplers are in home position with
respect to displacement.

(5) PS14 IN (PS14 → RB → FNS CB)

ON (L) when stapler-R is in home position with
respect to rotation.

(6) PS21 IN (PS21 → RB → FNS CB)

ON (L) when the stapling-and-folding stopper is
released.

(7) PS23 IN (PS23 → RB → FNS CB)

ON (L) when the stapling-and-folding stopper is
in home position.

(8) PS24 IN (PS24 → RB → FNS CB)

ON (L) when the lower alignment plates are in
home position.

(9) PS30 IN (PS30 → RB → FNS CB)

ON (L) when clincher-R is in position for clinch­ing.

(10)PS31 IN (PS31 → RB → FNS CB)

ON (L) when stapler-R is in position for stapling.

(11) PS32 IN (PS32 → RB → FNS CB)

Comes ON (H) at time when clincher-R must
begin clinching operation.

(12)PS33 IN (PS33 → RB → FNS CB)

ON (L) when clincher-F is in position for clinch­ing.

(13)PS34 IN (PS34 → RB → FNS CB)

ON (L) when stapler-F is in position for stapling.

(14)PS35 IN (PS35 → RB → FNS CB)

Comes ON (H) at time when clincher-F must
begin clinching operation.

(15)SW1 IN (SW1 → RB → FNS CB)

Comes ON and inputs an error code if the sta­pler-R cartridge is missing or improperly set.

(16)SW2 IN (SW2 → RB → FNS CB)

Comes ON and inputs an error code if stapler-R
is empty of staples.

(17)SW3 IN (SW3 → RB → FNS CB)

Comes ON and inputs an error code if the sta­pler-F cartridge is missing or improperly set.

(18)SW4 IN (SW4 → RB → FNS CB)

Comes ON and inputs an error code if stapler-F

is empty of staples.

(19) RESET (Main-Body CB → FNS CB → RB)

Stops all operation and clears error code.

(20) START (Main-Body CB → FNS CB → RB)

Request for stapling, from main body to FNS.

(21) CLR (Main-Body CB → FNS CB → RB)

Request to clear error code and return staplers
to home position.

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M4 DRV A, A, B , B (FNS CB → RB → M4)

M4 (stapler-R) drive signals.

(5) M11 DRV A, A, B, B (FNS CB → RB → M11)

M11 (stapler movement) drive control signals .

(6) M14 DRV A, A, B, B (FNS CB → RB → M14)

M14 (stapler movement) drive control signals.

(7) M17 DRV A, A, B, B (FNS CB → RB → M17)

M17 (stapler movement) drive control signals.

(8) M21 DRV F, R (FNS CB → RB → M21)

M21 (clincher drive) drive control signals.

(9) M22 DRV F, R (FNS CB → RB → M22)

M22 (staple drive) drive signals.

(10) M23 DRV F, R (FNS CB → RB → M23)

M23 (clincher drive) drive control signals.

(11) M24 DRV F, R (FNS CB → RB → M24)

M24 (staple drive) drive signals.

(12) BUSY (RB → FNS CB → Main-Body CB)

Outputs [L] while staple operation is in progress.

(13) READY (RB → FNS CB → Main-Body CB)

Outputs [L] when stapling system is prepared to
begin stapling.

(14) CLRREQ (RB → FNS CB → Main-Body CB)

CLR request from the FNS to the main body..

(15) EC00, EC01, EC02 (RB → FNS CB → Main-

Body CB)
Error codes transmitted from the FNS to the main
body .

1-54

MAIN TRA Y SECTION

Screws

Slide Stopper

Up-Down Stay

FS-108/FS-108BM

[1] Composition

Main Tray

PS15

(Tray No-Paper

Detection)

Wire

M3 (Tray Up-Down)

Pulley

Gear Box

Worm Gear

Pulley

PS3 (Tray Lower Limit)

Up-Down Shaft

[2] Mechanism

1. Raising and lower (Main tray up-down)

The rotation of the tray up-down motor (M3) turns the worm
gear on the motor’s shaft. The rotational force propagates
through the gear box and turns the up-down shaft, thereby
turning the pulleys fixed to the ends of the shaft (one pul­ley at each end). The wires attached to the pulleys cause
the tray to move up and down.
Clockwise turning of the M3 worm gear generates upward
tray movement, while counterclockwise turning generates
downward movement.

(3) Remove the two slide stoppers (removing one

screw at each stopper).

(4) Slide the up-down stay upward to remove it.

[3] Disassembly and Reassembly

CAUTION: Be sure that the power cord has been un-

plugged from the outlet.

1. Removing and Reinstalling the Up-Down Stay
a. Procedure

(1) Remove the following parts.

• Rear cover

• Front cover

• Front side cover

• Main tray

(2) With the up-down stay and exit-stopper plate in

contact, remove the exit-stopper plate. (See
“Removing and Reinstalling the Exit Stopper
Plate.”)

(5) Reinstall the stay in the opposite sequence to

removal.

1-55

FS-108/FS-108BM

Two Winds

Short Wire

Two Winds

E-ring

Upper Pulley

1. Exchanging the up-down wire
a. Procedure

CAUTION: The following procedure shows replacement

of the rear wire Removal of the front wire is
similar, but relationships are inverted (mirror
image).

(1) Remove the following parts.

• Rear cover

• Front cover

• Front side cover

• Main tray

(2) Remove the 4 wire-bracket set screws (2 screws

at the front wire bracket and 2 screws at the rear
wire bracket), and take off the up/down stay.

Screws

Up-Down Stay

Wire Bracket (front)

(3) Remove the E-ring and the lower up-down pul-

ley, and remove the wire you are replacing.

CAUTION: There is a pin located in the inside of the pul-

ley. Take care to avoid losing the pin when
removing the pulley.

(4) Move the up-down stay as necessary so that

front inner wire (the shorter side from the wire
bracket) is wound twice around the pulley.

(5) Wind the shorter side of the rear wire (relative

to the wire bracket) twice around the up-down
pulley.

(6) Adjust the wire-bracket position so that it is even

with the front wire bracket. Insert the pin, and
then fasten the pulley into place with the E-ring.

(7) Fit the wire onto the upper pulley.

Wire

E-ring

Lower Up-Down Pulley

1-56

FS-108/FS-108BM

(8) Wind the opposite side of the wire (the long side)

from the inside of the up-down pulley toward the
outside, and fix the wire end in place.

Long Wire

Wire End

(9) Press down on the up-down stay and refasten

the 4 wire-bracket set screws.

Wire
Bracket

Press down.

Wire
Bracket

(10)Loosen the two belt-tensioner set screws.
(11) Using a tension gauge or spring balance, pull

the belt tensioner so that tension A is at the value
indicated below. Maintain this tension while re­tightening the screws.
Spec value for tension: A = 2.5±0.1kg

(12)Reinstall the wire in the opposite sequence to

removal.

Screws

Screws

Up-Down Stay

1-57

FS-108/FS-108BM

PS6 (Paper Exit-1)

PS10 (Paper Exit-2)

PS2

(Tray Upper Limit)

PS3

(Tray Lower Limit)

Main T ra y

PS9 (Paper Exit
Belt HP)

PS7
(Staple Paper Upper Limit)

PS15

(Tray No-Paper

Detection)

M3 (Tray Up-Down)

[4] Main-Tray Up/Down Control

M3DRV-F

M3DRV-R

5V

3-B6

PS2IN

3-A1

GND

3-A5

5V

3-B5

PS3IN

3-A2

GND

PS7IN

GND

GND

PS6IN

GND

GND

3-A6

5V

3-B4
3-A3
3-B2

5V

3-B3
3-A4
3-B1

1-A9

5V

1-A27
1-A18

5V

1-A8
1-A26
1-A17

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

MS1

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

24V-IN

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

PS15IN

PS10IN

FNS CB

6-1

2-9
2-7

b. Staple mode (flat stapling)

M3 starts lowering the stray a preset period after M7 (pa­per exit roller) comes ON. When PS6 (paper exit-1) de-

2-1
2-2

M3

PS2

PS3

PS7

PS15

PS6

PS10

tects the trailing edge of the stapled set, M3 begins raising
the tray, and continues to raise it until PS7 (staple paper
upper limit) comes on.

M3 (tray up-down) drives the main tra y up and down. Clock­wise rotation drives the tray up; counterclockwise rotation
drives it down. M3 is controlled by the FNS CB (FNS con­trol board).

1. Operation
a. Sort, Group, and Non-Sort modes

M3 (tray up-down) begins lowering the tray when PS10
(paper exit-2) detects the passage of paper. It lowers the
tray until PS2 (tray upper limit) goes OFF, then raises it
until PS2 comes ON, and then stops.

PS6 (Paper Exit-1)

PS10 (Paper Exit-2)

Main T ra y

PS7
(Staple Paper Upper Limit)

PS2 (Tray Upper Limit)

PS15
(Tray No-Paper Detection)

PS3 (Tray Lower Limit)

M3 (Tray Up-Down)

1-58

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR(Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS(Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS2 IN (PS2 → FNS CB)

ON (H) when the main tray is at the upper limit
position.

(5) PS3 IN (PS3 → FNS CB)

ON (L) when the main tray is at the lower limit
position.

(6) PS6 IN (PS6 → FNS CB)

ON ([L]) when paper passage is detected at the
FNS exit.

(7) PS7 IN (PS7 → FNS CB)

ON ([L]) at paper ejection

(8) PS10 IN (PS10 → FNS CB)

ON (L) at paper ejection.

(9) PS15 IN (PS15 → FNS CB)

ON (L) when the main tray is at the upper limit.
Resets the tray paper counter.

FS-108/FS-108BM

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M3 DRV-F (FNS CB → M3)

M3 (tray up-down) forward drive control signal.

(5) M3 DRV-R (FNS CB → M3)

M3 (tray up-down) reverse drive control signal.

1-59

FS-108/FS-108BM

FOLDING UNIT (FS-108BM ONLY)

[1] Composition

Folding Conveyance Rollers

PS26 (Folding Passage PS/2)

Pressure Roller A

Pressure Roller B

Folding Conveyance Belts

M18 (Folding Stopper)

PS28 (Folding Passage)

Folding Stopper

PS27 (Folding Stopper HP)

Foldingd Roller A

Pressure Spring

Fold Spring

Folding Roller B

PS29 (Folding Full Up)

PS25 (Folding Paper-Exit Lower Detection)

M19 (Folding Knife)

M20 (Folding Conveyance)

PS22 (Folding Knife HP)

1-60

FS-108/FS-108BM

[2] Mechanism

1. Folding operation

M18 (folding stopper) moves the folding stopper into the predetermined position. M20 (folding conveyance) drives the folding
conveyance rollers and conveyance belt so as to transport the paper up to this stopper.
M19 (folding knife) drives the folding knife. Paper is folded over by the action of the knife and folding rollers, and the fold is
pressurized by the action of the folding rollers and the pressure rollers. M20 drives the folding rollers and pressure rollers so as
to eject the folded paper set into the booklet tray.

Pressure Roller A

Folding Roller A

Folding
Conveyance Roller

Pressure Roller B

Folding Roller B

Booklet Tray

M18 (Folding Stopper)

Folding Stopper

Folding Knife

Folding
Conveyance Belt

M19 (Folding Knife)

M20 (Folding Conveyance)

1-61

FS-108/FS-108BM

Screw

Plate

Plate

Screws

Folding Unit

[3] Disassembly and Reassembly

1. Removing and Reinstalling the Folding Unit
a. Procedure

(1) Remove the plate on the fold exit side.
(2) Remove the rear cover.
(3) Remove 4 set screws at the rear, as illustrated

below.

Screw

(5) Remove the two plates from the booklet exit (one

plate on each side).

(6) Remove 7 set screws at the front.
(7) Pull the folding unit out and off.

CAUTION: Be careful to keep the unit clear of the up/

down wires when removing it.

(4) Detach 3 connectors.

Connector

CAUTION: Be careful to keep the harness from catching

on the FNS body.

Connector

Connector

(8) Reinstall the unit in the opposite sequence to removal.

CAUTION: When reinstalling the folding unit, take care

to keep the connectors and harness from get­ting caught between the unit and the FNS
body.

1-62

2. Remo ving and Reinstalling the Adjustment Cover
a. Procedure

(1) Use a stubby screwdriver to remove the set

screw holding the cover in place, and take the
cover off.

FS-108/FS-108BM

Adjustment Cover

Screw

1-63

FS-108/FS-108BM

[4] Folding-Unit Control

24V

24V
M18DRVA
M18DRVA
M18DRVB
M18DRVB

9-A5
9-A6
9-A1
9-A2
9-A3
9-A4

M18

MS1

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

24V

24V
PGND
PGND

GND

GND

GND

GND

GND

GND

8-11
8-12

8-1

5V

8-2
8-3
8-4
8-5
8-6
8-7
8-8
8-9
8-10

5V

9-B12
9-A7
9-B6

5V

9-B11
9-A8
9-B5

5V

9-B4
9-A9
9-B10

5V

9-B9
9-A10
9-B3

5V

9-B8
9-A11
9-B2

5V

9-B7
9-A12
9-B1

M19

M20

PS22

PS25

PS26

PS27

PS28

PS29

M19DRVA

M19DRVB

M20BRK

M20CONT

M20CLK

M20PLL

M20F/R

6-1

2-9
2-7

6-3
6-4
6-5
6-6

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

24V-IN

5V
SGND
PGND
PGND

RXD
SGND
CTS
SGND
DTR
SGND
TXD
SGND
RTS
SGND
DSR
SGND

PS22IN

PS25IN

PS26IN

PS27IN

PS28IN

PS29IN

FNS CB

M18 (folding stopper) drives the folding stopper in accor­dance with the paper size. M20 (folding conveyance) trans­ports the paper into position for folding. Folding is imple­mented by the action of the folding knife and the folding
rollers.
The folding rollers and pressure rollers apply pressure to
the folded paper set while at the same time exiting it to the
booklet tray.
The folding knife is driven by M19 (folding-knife).

1. Operation

On receipt of the START button ON signal from the main
body , M18 (f olding stopper) mov es the folding stopper into
the predetermined position.
Upon completion of paper stapling, M20 (folding convey­ance) starts up and drives the folding conveyance rollers
and folding conveyance belt so as to transport the stapled
paper set up to the stopper.
Switching ON of PS28 (folding passage/1) causes M20 to
stop and M19 (folding knife) to start. The paper is folded
by the folding knife and folding rollers A and B.

Upon completion of folding, M20 starts again, driving fold­ing rollers and pressure rollers so as to exit the folded set
into the booklet tray.
When PS25 (folding exit) detects exiting of the paper set,
M20 stops and M18 moves the folding stopper to its home
position, stopping when PS27 (folding stopper HP) comes
ON.
Control of these operations is implemented by the FNS
CB (FNS control board).

1-64

FS-108/FS-108BM

2. Signals
a. Input signals

(1) TXD (Main-Body CB → FNS CB)

Serial data line; transmits operating status of the
main body’s CB to the FNS CB.

(2) DTR (Main-Body CB → FNS CB)

Request to send signal from the main body to
the FNS.

(3) RTS (Main-Body CB → FNS CB)

Transmission acknowledgment signal from the
main body to the FNS.

(4) PS22 IN (PS22 → FNS CB)

Home-position detection signal for the folding
knife. [L] when the knife is in home position.

(5) PS25 IN (PS25 → FNS CB)

Comes ON ([L]) when paper is ejected.

(6) PS26 IN (PS26 → FNS CB)

Comes ON ([L]) when paper passage is de­tected.

(7) PS27 IN (PS27 → FNS CB)

Home-position detection signal for the folding
stopper. [L] when the stopper is in home posi­tion.

(8) PS28 IN (PS28 → FNS CB)

Comes ON ([L]) when paper passage is de­tected.

(9) PS29 IN (PS29 → FNS CB)

Comes ON ([L]) when paper-full condition is
detected.

(10)M20 PLL (M20 → FNS CB)

Monitors rotation status of M20 (folding convey­ance).
[L] indicates that M20 has reached operational
speed.

b. Output signals

(1) TXD (FNS CB → Main-Body CB)

Serial data line; transmits FNS operating status
to the main body’s CB.

(2) RTS (FNS CB → Main-Body CB)

Request to send signal from the FNS to the main
body .

(3) DTR (FNS CB → Main-Body CB)

Transmission acknowledgment signal from the
FNS to the main body.

(4) M18 DRV A / M18 DRV B (FNS CB → M18)

M18 (folding stopper) drive control signals.

(5) M19 DRV A, A, B, B (FNS CB → M19)

M19 (folding knife) drive control signals.

(6) M20 BRK (FNS CB → M20)

M20 (folding conveyance) brake signal.

[H]: OFF
[L]: ON

(7) M20 CONT (FNS CB → M20)

M20 (folding conveyance) drive control signal.

[H]: OFF
[L]: ON

(8) M20 CLK (FNS CB → M20)

Reference clock signal for controlling the speed
of M20 (folding conveyance).

(9) M20 F/R (FNS CB → M20)

M20 (folding conveyance) rotation direction sig­nal.

[H]: Counterclockwise
[L]: Clockwise

1-65

FS-108/FS-108BM

Magnet

(rear)

Magnet

(front)

Conveyance

Guide Plate A

Conveyance

Guide Plate B

E-ring

Gear

FS-108/FS-108BM Adjustments

[1] Adjusting the Magnets on Conveyance

Guide Plate B

1. Tool used

• Phillips-head screwdriver

2. Preparation

(1) Open the front cover.
(2) Check whether conveyance guide plate B makes

contact with the cushioning rubber when the
magnets are stuck to conveyance guide plate
A.

(3) If plate B does not make contact with the cush-

ioning rubber, remove the rear cover and carry
out adjustment as described below.

3. Adjustment Procedure

(1) Detach all FNS CB (FNS control board) connec-

tors.

(2) Remove the 2 set screws holding the FNS CB

in place. Remove the FNS CB together with its
bracket.

Bracket

FNS CB (Finisher Control Board)

(4) Remove the E-ring and the gear.
(5) Adhere the magnets to conveyance guide plate

A and retighten the set screws.

(5) Reassemble in opposite sequence to removal.

Screws

(3) Loosen the 4 magnet-holding set screws (two

at the front and two at the back), and move con­veyance guide plate B all the way in the direc­tion indicated by the arrow.

1-66

FS-108/FS-108BM

Magnet

(rear)

Magnet

(front)

Conveyance Guide Plate C

Conveyance

Guide Plate D

[2] Adjusting the Magnets on Conveyance

Guide Plate C

1. Tool used

• Phillips-head screwdriver

2. Preparation

(1) Open the front cover.
(2) Check whether conveyance guide plate C makes

contact with the cushioning rubber when the
magnets are stuck to conveyance guide plate
D.

(3) If plate C does not make contact with the cush-

ioning rubber, remove the rear cover and carry
out adjustment as described below.

3. Adjustment Procedure

(1) Detach all FNS CB (FNS control board) connec-

tors.

(2) Remove the 2 set screws holding the FNS CB

in place. Remove the FNS CB together with its
bracket.

Bracket

FNS CB (Finisher Control Board)

(4) Adhere the magnets to convey ance guide plate

A and retighten the screws.

(5) Reassemble in opposite sequence to removal.

Screws

(3) Loosen the 4 magnet-holding set screws (two

at the front and two at the back), and move con­veyance guide plate C all the way in the direc­tion indicated by the arrow.

1-67

FS-108/FS-108BM

Sub-tray Gate

SD2

(Sub-tray

Paper Exit)

[3] Adjusting the Sub-tray Paper Exit Gate

1. Tools used

• Phillips-head screwdriver

• Scale

2. Preparation

(1) Remove the 2 set screws holding the FNS CB

(FNS control board) in place. Remove the FNS
CB together with its bracket.

Bracket

FNS CB (Finisher Control Board)

(4) With SD2 ON, measure the gap between the

solenoid plunger and the bracket stopper (indi­cated by B in the illustration).

Spec value for gap: B = 5 ±0.5mm.

(5) If either gap is out of spec, carry out adjustment

as described below.

(2) Remove the wirings from the clamps, and mov e

Clamps

Clamp

(3) With SD2 (sub-tray paper exit) OFF, measure

Screws

the FNS CB together with its bracket.

Clamps

Clamps

Clamps

Clamps

the gap between the sub-tray gate and the guide
plate (indicated by A in the illustration).

Spec value for gap: A = 4 ±0.5mm.

1-68

FS-108/FS-108BM

Screws

Bracket

FNS CB (Finisher Control Board)

Clamps

Clamps

Clamps

Clamps

Clamp

Clamps

3. Adjustment Procedure

(1) Loosen the 2 set screws holding the solenoid in

place, and move the solenoid as necessary to
adjust.

Screws

Solenoid

(2) Retighten the screws.
(3) Reinstall in opposite sequence to removal.

[4] Adjusting the Paper -Path Switching Gate

1. Tools used

• Phillips-head screwdriver

• Scale

2. Preparation

(1) Remove the following parts.

• Rear cover

• Top cover

• PI-108 (if installed)

(2) Remove the 2 set screws holding the FNS CB

(FNS control board) in place. Remove the FNS
CB together with its bracket.

(3) Remove the wirings from the clamps, and mov e

the FNS CB together with its bracket.

1-69

FS-108/FS-108BM

Guide Plate

Screws

Bracket

FNS CB (Finisher Control Board)

(4) With SD1 (gate) ON, measure the distance be-

tween the long gate and the guide plate, indi­cated by A in the illustration.

Spec value for distance: A = 7.6±0.5mm.

(5) Again with SD1 ON, measure the gap between

the solenoid plunger and the bracket stopper (in­dicated by B in the illustration).

Spec value for gap: B = 5±0.5mm.

Gate

Guide Plate

SD1 (Gate)

[5] Adjusting the By-pass Gate

1. Tools used

• Phillips-head screwdriver

• Scale

2. Preparation

(1) Remove the rear cover.
(2) Open the front cover and the guide plate.

(6) If either measurement is out of spec, carry out

adjustment as described below.

3. Adjustment Procedure

(1) Loosen the 2 set screws holding the solenoid in

place, and move the solenoid as necessary to
adjust.

Screws

Solenoid

(3) Remove the 2 set screws holding the FNS CB

in place. Remove the FNS CB together with its
bracket.

(2) Retighten the screws.
(3) Reassemble in the opposite sequence to re-

moval.

1-70

FS-108/FS-108BM

Solenoid

Screws

(4) Remove the wirings from the clamps, and mov e

the FNS CB together with its bracket.

Clamps

Clamps

Clamp

Clamps

Clamps

(5) With SD5 (by-pass) OFF, measure the distance

between the by-pass gate and the guide plate,
indicated by A in the illustration.

Spec value for distance: A = 4.3±0.5mm

(6) With SD5 ON, measure the gap between the

solenoid plunger and the bracket stopper (indi­cated by B in the illustration).

Spec value for gap: B = 5±0.5mm

3. Adjustment Procedure

(1) Loosen the 2 set screws holding the solenoid in

place, and move the solenoid as necessary to
adjust.

Clamps

(2) Retighten the screws.
(3) Reassemble in the opposite sequence to re-

moval.

SD5 (By-pass)

Guide Plate

(7) If either measurement is out of spec, carry out

Gate

adjustment as described below.

1-71

FS-108/FS-108BM

Screw

Bracket

[6] Adjusting the Shift Position

1. Tool used

• Phillips-head screwdriver

2. Preparation

(1) Remove the following parts.

• Rear cover

• Top cover

• PI-108 (if installed)
(2) Switch the power OFF → ON → OFF.
(3) With the roller shift motor (M2) OFF (home po-

sition), check that the actuator on PS18 (roller
shift HP) is correctly aligned with the cutout on
the shift-unit mounting plate.

Actuator

3. Adjustment Procedure

(1) Loosen the screw holding the PS18 (roller shift

HP) bracket in place, and adjust the bracket
position as necessary.

(2) Retighten the screw.
(3) Reassemble in the opposite sequence to re-

moval.

Cutout on Mounting Plate

(4) If the actuator is not correctly aligned with the

cutout, carry out adjustment as described be­low.

1-72

FS-108/FS-108BM

Bracket

Screw

[7] Adjusting Opening/Closing at the Paper

Exit

1. Tool used

• Phillips-head screwdriver

2. Preparation

(1) Remove the following parts.

• Rear cover

• Top cover

• PI-108 (if installed)

(2) Switch the power OFF → ON → OFF. Then, with

the paper exit closed, confirm that the paper exit
casing is firmly against the stopper section.

3. Adjustment Procedure

(1) Loosen the set screw holding the PS12 (paper

exit-opening detector) bracket in place, and ad­just the bracket position as necessary.

(2) Retighten the bracket set screw.
(3) Reassemble in the opposite sequence to re-

moval.

Casing

Stopper Section

Paper Exit Opening

(3) If the casing is not in firm contact with the stop-

per, carry out adjustment described as follows.

1-73

FS-108/FS-108BM

Solenoid Bracket

Screws

Screws

Solenoid Bracket

[8] Adjusting the Paper Exit-Opening

Solenoid

1. Tools used

• Phillips-head screwdriver

• Scale

2. Preparation

(1) Remove the following parts.

• Rear cover

• Top cover

• PI-108 (if installed)
(2) With SD4 (paper exit-opening solenoid) ON,

measure the gap between the solenoid plunger
and the bracket stopper.

Spec value for gap: A = 6.0 ±0.5mm

SD4 (Exit Opening)

3. Adjustment Procedure

(1) Remove the 2 set screws holding the solenoid

bracket in place, and remove the solenoid to­gether with the bracket.

(2) Loosen the 2 screws holding the solenoid to the

bracket, and adjust the position of solenoid.

(3) If the gap is out of spec, carry out adjustment

describe as follows.

(3) Retighten the 2 solenoid screws, then replace

the solenoid and bracket into their original posi­tion and screw in the 2 bracket screws.

(4) Reassemble in the opposite sequence to re-

moval.

1-74

FS-108/FS-108BM

B=2.5±0.5mm

SD4 (Paper Exit
Opening)

Paper Exit
Lower
Guide Plate

Screws

Solenoid Bracket

[9] Adjusting the Paper Exit-Opening Lower

Guide Plate

1. Tools used

• Phillips-head screwdriver

• Scale

2. Preparation

(1) Remove the following parts.

• Rear cover

• Top cover

• PI-108 (if installed)

(2) With SD4 (paper exit-opening solenoid) OFF,

confirm that the paper exit-opening lower guide
plate is a sufficient distance (distance A) higher
than the sponge rollers.

Spec value: A = 1.5mm and greater

Lower Guide Plate

A=1.5mm and greater

(3) Hold down the paper exit-opening guide plate

with your hand so that the paper exit roller makes
contact, and check that the remaining stroke for
solenoid SD4 (distance B) is within spec.

Spec value: B = 2.5±0.5mm

(4) If either measurement is out of spec, carry out

adjustment as described below.

3. Adjustment Procedure

(1) Loosen the 2 set screws holding the solenoid bracket
in place, and adjust the position of the bracket so that dis­tances A and B are within spec.

Sponge Roller

(2) Retighten the 2 bracket set screws.
(3) Reassemble in the reverse sequence to removal.

1-75

FS-108/FS-108BM

Actuator

PS8
(Upper Alignment Plate HP)

[10] Adjusting the Tension of the Stacker

Paper Exit Belt

1. Tools used

• Phillips-head screwdriver

• Tension gauge or spring balance

2. Preparation

(1) If the belt tensioner has been loosened as a re-

sult of belt replacement or for some other rea­son, adjust as described below.

3. Adjustment Procedure

(1) Loosen the 4 set screws (see illustration).
(2) Using a tension gauge or spring balance, pull

the belt-tensioner pulley shaft so that tension A
is at the value indicated below . Maintain this ten­sion while retightening the screws.

Spec value for tension: A = 2kg

Screws

[11] Adjusting the Mount Location of the

Upper Alignment Plates

1. Tools used

• Phillips-head screwdriver

• Scale

2. Preparation

(1) Open the front cover and pull out the stacker/

stapler unit.

3. Adjustment Procedure

(1) Move the upper alignment plates into home po-

sition. (Move so that the actuator on the upper­alignment-plate drive belt is at PS8 (upper-align­ment-plate HP).

A

Screws

Pulley Shaft

Belt Tensioner

(3) Reassmble in the opposite sequence to removal.

1-76

FS-108/FS-108BM

Belt Tensioner

Screws Scale

(2) Loosen the 2 set screws fixing the upper align-

ment plates in place (one screw on each plate),
and adjust the plates so that distances A and B
are within specification.

Spec values: A = 337±0.5mm

B = 41.2±0.5mm

Screws

Rear Panel

Upper Alignment Plates

(3) Retighten the screws.

[12] Adjusting the Tension of the Upper-

Alignment-Plate Drive Timing Belt

1. Tools used

• Phillips-head screwdriver

2. Preparation

(1) If the upper-alignment-plate drive belt tensioner

has been loosened as a result of belt replace­ment or for some other reason, adjust as de­scribed below.

3. Adjustment Procedure

(1) Loosen the 2 set screws (see illustration).
(2) Move the belt tensioner so that the end is aligned

with the center mark on the scale, and retighten
the screws.

1-77

FS-108/FS-108BM

337±0.5mm 40.4±0.5mm

2.0mm

Screws

Rear Panel

[13] Adjusting the Mount Location of the Lower

Alignment Plates (FS-108BM only)

1. Tool used

• Phillips-head screwdriver

2. Preparation

(1) Open the front cover and pull out the stacker/

stapler unit.

3. Adjustment Procedure

(1) Move the lower alignment plates into home po-

sition. (Move so that the actuator on the lower­alignment-plate drive belt is at PS24 (lower-align­ment-plate HP).

(2) Loosen the 2 set screws fixing the lower align-

ment plates in place (one screw on each plate),
and adjust the plates so that distances A and B
are within specification.

Spec values: A = 337±0.5mm

B = 40.4±0.5mm

(3) Retighten the screws.

PS24
(Lower Alignment Plate HP)

Actuator

1-78

FS-108/FS-108BM

Staple Positions

Flat-Stapling Stoppers

[14] Adjusting the Tension of the Lower-

Alignment-Plate Drive Timing Belt
(FS-108BM only)

1. Tool used

• Phillips-head screwdriver

2. Preparation

(1) If the lower-alignment-plate drive belt tensioner

has been loosened as a result of belt replace­ment or for some other reason, adjust as de­scribed below.

3. Adjustment Procedure

(1) Loosen the 2 set screws (see illustration).
(2) Move the belt tensioner so that the end is aligned

with the center mark on the scale, and retighten
the screws.

Belt Tensioner

[15] Adjusting the Stapling Position (Flat

Stapling)

1. Tools used

• Phillips-head screwdriver

• Scale

2. Preparation

(1) Check whether the virtual line running between

the stoppers is parallel to the virtual line between
the staplers.

Screws

Scale

(2) If the lines are not parallel or if you need to

change the stapling position, carry out adjust­ment as described below.

1-79

FS-108/FS-108BM

Plate

Jig

3. Adjustment Procedure

(1) Loosen the 3 set screws holding the flat-stapling

stopper bracket in place, and position the bracket
so that distance A is within the specification
range.

Spec range: A = 5.5 to 11.5mm

(initial value = 8.5mm)

[16] Adjusting the Stapler Vertical Positioning

1. Tools used

• Phillips-head screwdriver

• Jig

2. Preparation

(1) When replacing or reinstalling a stapler or

clincher, adjust the vertical alignment as de­scribed below.

3. Adjustment Procedure

(1) If installing a stapler, mount the stapler into place.
(2) Loosely fasten the clincher in place with 4 set

screws. (If the clincher is already fastened in
place, loosen the 4 screws so that you can ad­just it.)

(3) Remove the plate from the jig.

Adjust.

Scale

Scale

Scale

(2) Hold paper against the stoppers and confirm that

all three stoppers are in alignment.

(3) Execute stapling to confirm that the stopper line

and stapler line are parallel.

1-80

FS-108/FS-108BM

Jig

Jig

Peg

Hole

Clincher

(4) Remove the cartridge, and install the plate that

you took from the jig.

Cartridge

Plate

(5) Reinstall the cartridge.

(6) Fit the two pegs on the jig into the correspond-

ing holes in the clincher.

1-81

FS-108/FS-108BM

Stacker/Stapler Unit

Rail Stopper Screw

Rail Stopper Screw

(7) Rotate the stapler gears downward. Adjust the

clincher position so that the plate on the car­tridge fits smoothly into the groove on the jig.

Gears

Groove

Plate

[17] Adjusting the Staple Orientation

(Stapling-and-Folding) (FS-108BM only)

1. Tool used

• Phillips-head screwdriver

2. Preparation

(1) If the staple orientation is not parallel with the

paper edge, adjust as described below.

3. Adjustment Procedure

(1) Open the front cover and pull the stacker/stapler

unit part of the way out..

(2) Remove the 2 rail-stopper screws. Then pull the

stacker/stapler unit all of the way out.

(8) With the plate in the groove, tighten the 4 clincher

set screws to fasten the clincher into place.

(9) Rotate the stapler gears back upwards, and re-

move the jig.

(10)Remove the plate from the cartridge and set it

back into the jig.

(11) Reinstall the cartridge and check that stapling

operates correctly.

Stapler

1-82

FS-108/FS-108BM

(3) Remove the 4 set screws holding the cover in

place, and remove the cover.

Screws

Cover

Screws

(4) Loosen 4 more set screws.
(5) Rotate the stapling-and-folding stopper assem-

bly as necessary to adjust the alignment.

Scale

Screw

[18] Adjusting the Staple Position

(Stapling-and-Folding) (FS-108BM only)

1. Tool used

• Scale

2. Preparation

(1) Connect the finisher to the main body.
(2) Load paper of the appropriate size into the main

body .

(3) Before proceeding, be sure that you have cor-

rectly adjusted the angle of the stapling-and-fold­ing stopper.

(4) For each paper size, confirm that is stapling is

positioned correctly at the center of the sheets.

(5) If stapling is off-center, adjust as described be-

low.

3. Adjustment Procedure

(1) Hold down keys [3] and [6] on the copier’s nu-

meric keypad while setting the main switch ON.

The copier will enter finisher-adjustment mode.
(2) Select [[6] Finisher Adjust] at the copier display.
(3) Select [Copy Screen] at the copier display. The

display switches to the Copy screen.
(4) Take a staple-and-fold sample using the paper

size that you want to adjust for.
(5) Return to the adjustment screen and select [[1]

Stapling-and-folding stopper adjust].
(6) Select the size for adjustment by pressing the

up or down arrow button on the display as nec-

essary.
(7) Enter the adjustment value using the [+←→−]

button or the numeric keypad. (0.1mm/step)
(8) Press the [Set] button to register the adjustment.
(9) Return to the Copy screen and take another

sample. Check that the discrepancy is within the

limit.
(10)Repeat the above adjustment procedure for

other paper sizes.

(6) Retighten the screws.

1-83

FS-108/FS-108BM

Screws

Folding Stopper

[19] Adjusting the Angle of the Folding

Stopper (FS-108BM only)

1. Tools used

• Phillips-head screwdriver

• Phillips-head stubby screwdriver

2. Preparation

(1) Connect the finisher to the main body.
(2) Load A3 paper into the main body.
(3) Remove the paper exit-guide-plate adjustment cover.

3. Adjustment Procedure

(1) Take a fold sample using A3 paper.
(2) Check the discrepancy along the folded set’s

trailing edge, and use this information to judge
the direction and amount by which the stopper
angle must be corrected.

(3) Loosen the 2 front set screws holding the stop-

per in place, and adjust the stopper angle by
rotating around the rear screw.

Adjustment Cover

Screw

(4) Check whether the following conditions hold.

• Check that the fold line (the folding stopper)
is perpendicular to the conveyance direction.

• Check that the fold side discrepancy (for A3
paper) is within the limit.

Limit: A = 1mm

A=Within1mm

(4) Retighten the 2 front screws.
(5) T ake another sample and check the discrepancy.
(6) Repeat steps (3) and (4) until the discrepancy is

within the specified limit.

(7) Replace the adjustment cover.

(5) If either or both of the above conditions does

not hold, adjust as described below.

1-84

FS-108/FS-108BM

Paper exit direction

1.4mm

[20] Adjusting the Folding-Stopper Positions

(FS-108BM only)

1. Tool used

• Scale

2. Preparation

(1) Connect the finisher to the main body.
(2) Load paper of the appropriate size into the main

body .

(3) Before proceeding, be sure that you have cor-

rectly adjusted the angle of the folding stopper.

(4) Check whether the following conditions hold.

• For each paper size: Paper is correctly folded
at the center.

• For each paper size: Discrepancy along the
trailing edge of the folded paper is within the
limit.

Limit: A=1mm

(7) Enter the adjustment value [=half the value of

the discrepancy along the folded set’s trailing
edge] using the [+←→–] button or the numeric
keypad. (0.1mm/step)
If the lower pages are jutting out past the upper
pages, the fold is too much to the “+” side; cor­rect by adjusting to the “–” side. If the upper
pages are jutting out, the fold is too much to the

“–” side; correct by adjusting to the “+” side.
(8) Press the [Set] button to register the adjustment.
(9) Return to the Copy screen and take another

sample. Check that the discrepancy is within the

limit.
(10)Repeat the above adjustment procedure for

other paper sizes.

4. Example

(1) Assume that at time of ejection the lower pages

are extending out 1.4mm relative to the upper

pages.

A=Within1mm

(5) If either or both of the above conditions does

not hold, adjust as described below.

3. Adjustment Procedure

(1) Hold down keys [3] and [6] on the copier’s nu-

meric keypad while setting the main switch ON.

The copier will enter finisher-adjustment mode.
(2) Select [[6] Finisher Adjust] at the copier display.
(3) Select [Copy Screen] at the copier display. The

display switches to the Copy screen.
(4) T ak e a fold sample using the paper size that y ou

want to adjust for.
(5) Return to the adjustment screen and select [[2]

Folding stopper adjust].
(6) Select the size for adjustment by pressing the

up or down arrow button on the display as nec-

essary .

(2) Since the lower pages are jutting out, the dis-

crepancy is on the “+” side. Correct by entering
an adjustment of [-7].

1-85

FS-108/FS-108BM

k

k

[21] Adjusting the Tension of the Stapler-

Movement Timing Belt

1. Tools used

• Phillips-head screwdriver

• Tension gauge or spring balance

2. Preparation

(1) If the belt tensioner has become loose as a re-

sult of belt replacement or for some other rea­son, adjust as described below.

3. Adjustment Procedure

(1) Loosen the 2 screws holding the tensioner in

place.

(2) Using a tension gauge or spring balance, pull

the belt-tensioner so that tension A is at the value
indicated below. Maintain this tension while re­tightening the screws.

Spec value for tension: A = 1.5±0.5kg

[22] Adjusting the Tension of the Stapler-

Rotation Timing Belt

1. Tools used

• Phillips-head screwdriver

• Tension gauge or spring balance

2. Preparation

(1) If the belt tensioner has been loosened as a re-

sult of belt replacement or for some other rea­son, adjust as described below.

3. Adjustment Procedure

(1) Loosen the 2 screws holding the tensioner in

place.

(2) Using a tension gauge or spring balance, pull

the belt-tensioner so that tension A is at the value
indicated below. Maintain this tension while re­tightening the screws.

Spec value for tension: A = 0.75 ±0.05kg

1-86

[23] Adjusting the Folding Force

(FS-108BM only)

1. Preparation

(1) If necessary, you can change the force of the

folding and pressure rollers as described below .

CAUTION: If changing the forces, be sure to make the

same change for all rollers at the same time.

2. Adjustment Procedure

(1) Set the springs as illustrated below; a pressure

spring on the folding roller, and a fold spring on

the pressure roller.

Force: If A = 8.5kgf

If B = 11.4kgf
If C = 14.4kgf

CAUTION: Be sure to attach the springs into like-labeled

holes (either A, or B, or C).

FS-108/FS-108BM

Pressure Spring

Fold Spring

Pressure Spring

Fold Spring

1-87

2

DIAGRAM

FS-108/FS-108BM

FS-108/FS-108BM ELECTRICAL PARTS LA Y OUT DRAWING

1. Switches and Sensors

MS1 Interlock
PS1 Sub-tray paper exit PS
PS2 Tray upper-limit PS
PS3 Tray lower-limit PS
PS4 FIN entrance passage PS
PS5 Stacker conveyance passage PS
PS6 Paper exit-1 PS
PS7 Staple paper exit upper-limit PS
PS8 Alignment-plate/upper HP PS
PS9 Paper exit-belt HP PS
PS10 Paper exit-2 PS

2-1

PS11 Stapler-movement HP PS
PS12 Paper exit-opening PS
PS13 Entrance paper detection PS
PS14 Stapler-rotation HP PS
PS15 Tray no-paper detection PS
PS18 Roller-shift HP PS
PS20 Stacker no-paper detection PS
PS21
PS22 Folding-knife HP PS
PS23 Stapling and folding stopper HP PS
PS24 Alignment-plate/lower HP PS
PS25 Folding paper-exit PS

Stapling and folding stopper-release-motor HP PS

FS-108/FS-108BM

PS26 Folding passage PS/2
PS27 Folding stopper HP PS
PS28 Folding passage PS/1
PS29 Folding full up PS
PS30 Clincher HP PS/R
PS31 Stapler HP PS/R
PS32 Clincher timing PS/R
PS33 Clincher HP PS/F
PS34 Stapler HP PS/F
PS35 Clincher timing PS/F
PS207 Paper exit-cover open/close detection PS
SW1 Cartridge detection SW/R

SW2 Staple detection SW/R
SW3 Cartridge detection SW/F
SW4 Staple detection SW/F

2-2

FS-108/FS-108BM

2. Motors, Solenoids, and Boards

M1 FNS conveyance motor
M2 Roller-shift motor
M3 Tray up-down motor
M4 Stapler rotation motor
M5 Alignment-plate/upper motor
M7 Paper exit-roller motor
M8 Paper exit-opening motor
M11 Stapler-movement motor
M13 Stacker entrance motor
M14 Stapling and folding stopper motor
M15 Alignment-plate/lower motor
M17 Stapling and folding stopper release motor

M18 Folding-stopper motor
M19 Folding-knife motor
M20 Folding conveyance motor
M21 Clincher motor-R
M22 Stapler motor-R
M23 Clincher motor-F
M24 Stapler motor-F
SD1 Gate solenoid
SD2 Sub-tray paper exit solenoid
SD4 Paper exit-opening solenoid
SD5 By-pass solenoid
FNS CB FNS control board
RB Relay board

2-3

FS-108/FS-108BM

FS-108/FS-108BM CONNECTER LAYOUT DRAWING

128(W:3 PIN)

124(W:3 PIN)

133(W:3 PIN)

114(W:6 PIN)

129(W:3 PIN)

202(W:16 PIN)

145(W:3 PIN)

121(W:3 PIN)

35(W:3 PIN)

108(BK:2 PIN)
143(W:3 PIN)
111(W:6 PIN)

140(W:3 PIN)

131(W:3 PIN)

204(W:16 PIN)

144(W:3 PIN)

149(W:3 PIN)
147(W:3 PIN)

148(W:3 PIN)

RB

24(GY:22 PIN) 23(GY:34 PIN)

117(BK:2 PIN)

203(W:24 PIN)

141(W:3 PIN)

201(W:24 PIN)

146(W:3 PIN)

119(W:2 PIN)

142(W:3 PIN)

100(W:11 PIN)

2-4

28(GY:20 PIN) 25(GY:24 PIN)

27(W:9 PIN)

26(GY:14 PIN)

104(W:6 PIN)

21(GY:60 PIN)

22(GY:16 PIN)

FNS CB

102(BK:2 PIN)

138(W:3 PIN)

130(W:3 PIN)

126(W:3 PIN)

FS-108/FS-108BM

132(W:3 PIN)

125(W:3 PIN)

51(GY:50 PIN)

1(GY:60 PIN)

6(GY:6 PIN)

5(GY:16 PIN)

4(GY:60 PIN)

7(W:7 PIN)

8(W:12 PIN)

152(W:2 PIN)
155(W:2 PIN)

133(W:6 PIN)

162(W:6 PIN)

753(W:6 PIN)

752(W:12 PIN)

3(GY:12 PIN)

2(W:2 PIN)

9(GY:24 PIN)

101(W:11 PIN)

151(W:2 PIN)

132(W:3 PIN)

107(W:12 PIN)

127(W:3 PIN)

122(W:3 PIN)

135(W:3 PIN)

123(W:3 PIN)

171(BK:18 PIN)

103(BK:2 PIN)

175(W:6 PIN)

172(W:12 PIN)

2-5

FS-108/FS-108BM OVERALL WIRING DIAGRAM (1/3)

201-A1

PGND

201-A2

STAPLER

HP PS/R

CLINCHER

TIMING PS/R

CARTRIDGE

DETECTION

SWITCH/R

STAPLE

DETECTION

SWITCH/R

STAPLER

MOTOR/R

CLINCHER

HP PS/R

CLINCHER

MOTOR/R

STAPLER

HP PS/F

CLINCHER

TIMING PS/F

CARTRIDGE

DETECTION

SWITCH/F

STAPLE

DETECTION

SWITCH/F

STAPLER

MOTOR/F

CLINCHER

PS/F

CLINCHER

MOTOR/F

5V

RC

RC

PS31IN
GND

5V
PS32IN
GND

5V
5V IN

5V
5V IN

M22DRV F
M22DRV R

5V
PS30IN
GND

M21DRV F
M21DRV R

5V
PS34IN
GND

5V
PS35IN
GND

5V
5V IN

5V
5V IN

M24DRV F
M24DRV R

5V
PS33IN
GND

M23DRV F
M23DRV R

PS31

PS32

SW1

SW2

M22

PS30

M21

PS34

PS35

SW3

SW4

M24

PS33

HP

M23

PGND
PGND

SGND
SGND

/RESET

SPCH
SNCH

/OPTION

/SHOME

EC00
EC01
EC02

/READY

/BUSY

/CLRREQ

/START

/CLR

24V
24V
24V

PGND
PGND
SGND
SGND

24V
24V
24V

24V
SPCH
SNCH

/OPTION

/SHOME

PGND
PGND

PGND
PGND
PGND

SGND
SGND

/RESET

SPCH
SNCH

/OPTION

/SHOME

EC00
EC01
EC02

/READY

/BUSY

/CLRREQ

/START

/CLR

24V

24V

24V

PGND
PGND
SGND
SGND

24V

24V

24V

24V
SPCH
SNCH

/OPTION

/SHOME

PGND
PGND

201-A3
201-A4

NC

201-A5
201-A6
201-A7

5V

201-A8

5V

201-A9
201-A10
201-A11
201-A12
201-B1
201-B2
201-B3
201-B4
201-B5
201-B6
201-B7
201-B8
201-B9
201-B10
201-B11
201-B12

202-A1
202-A2
202-A3
202-A4
202-A5

5V

202-A6

5V

202-A7
202-A8
202-B1
202-B2
202-B3
202-B4
202-B5
202-B6
202-B7
202-B8

203-A1
203-A2
203-A3
203-A4

NC

203-A5
203-A6
203-A7

5V

203-A8

5V

203-A9
203-A10
203-A11
203-A12
203-B1
203-B2
203-B3
203-B4
203-B5
203-B6
203-B7
203-B8
203-B9
203-B10
203-B11
203-B12

204-A1
204-A2
204-A3
204-A4
204-A5

5V

204-A6

5V

204-A7
204-A8
204-B1
204-B2
204-B3
204-B4
204-B5
204-B6
204-B7
204-B8

[Reading the Diagrams]

1. Signal states reflect condition in which system is in normal idling state with the main switch ON.

2. Symbols used in circuit diagrams are as follows.
(1) Symbols (3) RC denotes a ribbon cable.

50-1

VV

(4) Signal Flow

Connectors are indicated by circle ( ) or ( ).

Connector Faston

PGC Wire (Violet)

(2) Color Codes

BN : Brown
R : Red
O : Orange
Y : Yellow
GN : Green
LB : Light blue

B : Blue
V : Violet
GY : Gray
W : White
BK : Black
P : Pink

The dark circles indicate the direction of the signal flow.

Example:

CB

Direction of signal flow:

5VDC

PS1

SGND

PS1

Example: Y/GN denotes a green wire with a yellow stripe.

24-A1
24-A2

24-A3
24-A4

24-A7
24-B5
24-B6
24-B7
24-B8
24-A8
24-A9
24-A10
24-A11
24-B1
24-B2
24-B3
24-B4

24-A5
24-A6

23-A7
23-A8

23-A5
23-A6

23-A9
23-A10
23-A4
23-A3
23-A2
23-A1

28-A1
28-A2

28-A3
28-A4

28-A7
28-B6
28-B7
28-B8
28-B9
28-A8
28-A9
28-A10
28-B1
28-B2
28-B3
28-B4
28-B5

28-A5
28-A6

28-B10
23-B10

23-B11

23-B13
23-B12

23-B8
23-B9
23-B14
23-B15
23-B16
23-B17

23-B1
23-A17

PGND
PGND

SGND
5V

/RESET
SPCH
SNCH
/OPTION
/SHOME
EC00
EC01
EC02
/READY
/BUSY
/CLRREQ
/START
/CLR

24V
24V

PGND
PGND

SGND
5V

24V
24V
SPCH
SNCH
/OPTION
/SHOME

PGND
PGND

SGND
5V

/RESET
SPCH
SNCH
/OPTION
/SHOME
EC00
EC01
EC02
/READY
/BUSY
/CLRREQ
/START
/CLR

24V
24V

PGND
PGND

SGND
5V

24V
24V
SPCH
SNCH
/OPTION
/SHOME

NC
NC

M13DRVA
M13DRVA
M13DRVB
M13DRVB

M13_24V
M13_24V

M4DRVA
M4DRVA
M4DRVB
M4DRVB

M4_24V
M4_24V
M4_24V

M4_24V
M5DRVA
M5DRVA
M5DRVB
M5DRVB

PGND
PGND
PGND
PGND

PGND
M11DRVA
M11DRVA
M11DRVB
M11DRVB

/RESET

EC00
EC01
EC02

/READY

/BUSY

/CLRREQ

/START

/CLR
ST_24V
ST_24V
ST_24V
/RESET

EC00
EC01
EC02

/READY

/BUSY

/CLRREQ

/START

/CLR

SGND

SGND
PS 8IN
PS 9IN

PS11IN
PS14IN
PS20IN

M14DRVA
M14DRVA
M14DRVB
M14DRVB
M15DRVA
M15DRVA
M15DRVB
M15DRVB

M17_12V

M17_CONT

PS21IN
PS23IN
PS24IN

PS8IN

GND

PS9IN

GND

PS11IN

GND

PS14IN

GND

PS20IN

GND

21-A1
21-A2
21-A3
21-A4
21-A5
21-A6
21-A7
21-A8
21-A9
21-A10
21-A11
21-A12
21-A13
21-A14
21-A15
21-A16
21-A17
21-A18
21-A19
21-A20
21-A21
21-A22
21-A23
21-A24
21-A25
21-A26
21-A27

NC

21-A28

NC

21-A29

NC

21-A30
21-B1
21-B2
21-B3
21-B4
21-B5
21-B6
21-B7
21-B8
21-B9
21-B10
21-B11
21-B12
21-B13
21-B14
21-B15
21-B16
21-B17
21-B18
21-B19
21-B20
21-B21
21-B22

5V

21-B23

5V

21-B24
21-B25
21-B26
21-B27
21-B28
21-B29
21-B30

22-A1
22-A2
22-A3
22-A4
22-A5
22-A6
22-A7
22-A8
22-B1
22-B2
22-B3
22-B4
22-B5

128-3

5V

25-A5

L

25-A3
25-A1

5V

25-A6

L

25-A4
25-A2

5V

25-B8

L

25-B10
25-B12

5V

24-B11

L

24-B10
24-B9

5V

25-B7

H

25-B9
25-B11

162-6
162-5
162-4

162-3
162-2
162-1

128-2
128-1

129-3
129-2
129-1

131-3
131-2
131-1

134-3
134-2
134-1

140-3
140-2
140-1

ALIGNMENT PLATE

PS8

/UPPER HP PS

PAPER EXIT BELT

PS9

HP PS

STAPLER

PS11

MOVEMENT
HP PS

STAPLER

PS14

ROTATION
HP PS

STACKER NO

PS20

PAPER DETECTION PS

4-A1
4-A2
4-A3
4-A4
4-A5
4-A6
4-A7
4-A8
4-A9
4-A10
4-A11
4-A12
4-A13
4-A14
4-A15
4-A16
4-A17
4-A18
4-A19
4-A20
4-A21
4-A22
4-A23
4-A24
4-A25
4-A26
4-A27
4-A28
4-A29
4-A30

4-B1
4-B2
4-B3
4-B4
4-B5
4-B6
4-B7
4-B8
4-B9
4-B10
4-B11
4-B12
4-B13
4-B14
4-B15
4-B16
4-B17
4-B18
4-B19
4-B20
4-B21
4-B22
4-B23
4-B24
4-B25
4-B26
4-B27
4-B28
4-B29
4-B30

5-A1
5-A2
5-A3
5-A4
5-A5
5-A6
5-A7
5-A8
5-B1
5-B2
5-B3
5-B4
5-B5
5-B6
5-B7
5-B8

M13DRVA
M13DRVA
M13DRVB
M13DRVB
M13_24V
M13_24V
M4DRVA
M4DRVA
M4DRVB
M4DRVB
M4_24V
M4_24V
M4_24V
M4_24V
M5DRVA
M5DRVA
M5DRVB
M5DRVB
PGND
PGND
PGND
PGND
PGND
M11DRVA
M11DRVA
M11DRVB
M11DRVB
NC
NC
NC
R/RESET
R/EC00
R/EC01
R/EC02
R/READY
R/BUSY
R/CLRREQ
R/START
R/CLR
ST_24V
ST_24V
ST_24V
F/RESET
F/EC00
F/EC01
F/EC02
F/READY
F/BUSY
F/CLRREQ
F/START
F/CLR
5V
5V
SGND
SGND
PS 8IN
PS 9IN
PS11IN
PS14IN
PS20IN

M14DRVA
M14DRVA
M14DRVB
M14DRVB
M15DRVA
M15DRVA
M15DRVB
M15DRVB
M17_12V
M17_CONT
PS21IN
PS23IN
PS24IN
BMSET
GND
N.C.

PS207IN

GND

24V

DRV

24V

DRV

M1BRK

M1CONT

M1CLK

M1PLL

M1F/R

24V

24V
PGND
PGND

M7P/S

M7CLK

M7H/L

M7LD

PGND
PGND

24V

24V
M7F/R

PS1IN

GND

PS4IN

GND

PS5IN

GND

PS6IN

GND

PS10IN

GND

PS12IN

GND

PS13IN

GND

PS18IN

GND

NC

1-B15

1-A13

5V

L

1-B18
1-A22

102-1

1-A2
1-B29

H

1-A1

H

1-B30

1-B6

5V

1-B1

L

1-B2

L

1-B3
1-B4
1-B5
1-B19
1-B20
1-B13
1-B14

1-B7

5V

1-B8
1-B9
1-B10
1-B11

1-B16
1-B17
1-B21
1-B22
1-B12

5V

1-A12

H

1-A30
1-A21

5V

1-A11

H

1-A29
1-A20

5V

1-A10

H

1-A28
1-A19

5V

1-A9

H

1-A27
1-A18

5V

1-A8

H

1-A26
1-A17

5V

1-A7
1-A25
1-A16

5V

1-A6

H

1-A24
1-A15

5V

1-A5
1-A23
1-A14

102-2

108-1
108-2

101-1
101-2
101-3
101-4
101-5
101-6
101-7
101-8
101-9
101-10
101-11

107-1
107-2
107-3
107-4
107-5
107-6
107-7
107-8
107-9
107-10
107-11
107-12

170-3
170-2
170-1

DRV
PGND

357-3
357-2
357-1

121-3
121-2
121-1

124-3
124-2
124-1

125-3
125-2
125-1

126-3
126-2
126-1

130-3
130-2
130-1

132-3
132-2
132-1

133-3
133-2
133-1

138-3
138-2
138-1

PAPER EXIT COVER

PS207

OPEN-CLOSE
DETECTION PS

ROLLER SHIFT

M2

MOTOR

PAPER EXIT

M8

OPENING MOTOR

FNS

M1

CONVEYANCE
MOTOR

PAPER EXIT

M7

ROLLER MOTOR

SUB-TRAY

PS1

PAPER EXIT PS

FIN ENTRANCE

PS4

PASSAGE PS

STACKER CONVEYANCE
PASSAGE

PS5

DETECTION PS

PS6

PAPER EXIT 1 PS

PS10

PAPER EXIT 2 PS

PAPER EXIT

PS12

OPENING PS

ENTRANCE

PS13

PAPER
DETECTION PS

PS18

ROLLER SHIFT HP PS

FNS CBRB

2-7

FS-108/FS-108BM OVERALL WIRING DIAGRAM (2/3)

STAPLING&FOLDING

STOPPER RELEASE

MOTOR HP PS

STAPLING&FOLDING

STOPPER HP PS

ALIGNMENT

PLATE LOWER

HP PS

STAPLING&FOLDING

STOPPER MOTOR

ALIGNMENT PLATE

MOTOR/LOWER

STAPLING&FOLDING
STOPPER RELEASE

MOTOR

PS21

PS23

PS24

M14

M15

M17

141-1
141-2
141-3

143-3
143-2
143-1

144-3
144-2
144-1

FS-108BM

174-1
174-2
174-3

114-1
114-2
114-3
114-4
114-5
114-6

115-1
115-2
115-3
115-4
115-5
115-6

117-2
117-1

26-A3
26-A2
26-A1

26-B5
26-B6
26-B7

27-3
27-2
27-1

26-B4
26-B3
26-A4
26-A5
26-A6
26-A7

27-4
27-5
27-6
27-7
27-8
27-9

26-B1
26-B2

H

L

L

P
P
P
P

P
P
P
P

H

5V
PS21IN
GND

5V
PS23IN
GND

5V
PS24IN
GND

24V
24V
M14DRVA
M14DRVA
M14DRVB
M14DRVB

24V
24V
M15DRVA
M15DRVA
M15DRVB
M15DRVB

12V
M17DRV

M11DRVA
M11DRVA
M11DRVB
M11DRVB

M13DRVA
M13DRVA
M13DRVB
M13DRVB

RB

24V

24V
M4DRVA
M4DRVA
M4DRVB
M4DRVB

24V

24V
M5DRVA
M5DRVA
M5DRVB
M5DRVB

24V

24V

24V

24V

P
P
P
P

P
P
P
P

P
P
P
P

P
P
P
P

23-A11
23-A12
23-A13
23-A14
23-A15
23-A16

25-B2
25-B1
25-B6
25-B5
25-B4
25-B3

23-B7
23-B6
23-B5
23-B4
23-B3
23-B2

25-A11
25-A7
25-A8
25-A9
25-A10
25-A12

GATE

SOLENOID

SUB-TRAY

PAPER EXIT

SOLENOID

PAPER EXIT

OPENING

SOLENOID

BY-PASS

SOLENOID

INTERLOCK

104-1
104-2
104-3
104-4
104-5
104-6

105-1
105-2
105-3
105-4
105-5
105-6

111-1
111-2
111-3
111-4
111-5
111-6

113-1
113-2
113-3
113-4
113-5
113-6

SD1

SD2

SD4

SD5

MS1

24V

5V
SGND
PGND
PGND

TXD

NC

DTR

NC

CTS

NC

RXD

NC

DSR

NC

RTS

NC

MAIN BODY

FA 1B

FA 1A

28-6

28-3
28-1

114-1

114-2

114-5

114-3

114-7

114-6

151-2
151-1

152-2
152-1

154-2
154-1

155-2
155-1

2-9
2-7

STAPLER ROTATION

M4

MOTOR

ALIGNMENT PLATE

M5

MOTOR/UPPER

STAPLER MOVEMENT

M11

MOTOR

STACKER
ENTRANCE

M13

MOTOR

753-1
753-2
753-3
753-4
753-5
753-6

752-1
752-2
752-3
752-4
752-5
752-6
752-7
752-8
752-9
752-10
752-11
752-12

29-2

29-1

1-B26
1-B27

1-B24
1-B28

1-B25
1-A4

1-B23
1-A3

6-1

6-3
6-4
6-5
6-6
6-2

7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
7-9
7-10
7-11
7-12

103-1
103-2

172-1
172-2
172-3
172-4
172-5
172-6

171-11
171-12

171-1
171-2
171-3
171-4
171-5
171-6
171-7
171-8
171-9
171-10

171-18
171-17
171-16

175-1
175-2
175-3

171-13
171-14
171-15

172-9
172-8
172-7

172-12
172-11
172-10

175-4
175-5
175-6

FS-108BM

118-1
118-2
118-3
118-4
118-5
118-6

119-1
119-2

100-1
100-2
100-3
100-4
100-5
100-6
100-7
100-8
100-9
100-10
100-11

122-3
122-2
122-1

123-3
123-2
123-1

127-3
127-2
127-1

135-3
135-2
135-1

142-3
142-2
142-1

145-3
145-2
145-1

146-3
146-2
146-1

147-3
147-2
147-1

148-3
148-2
148-1

149-3
149-2
149-1

TRAY UP-DOWN

M3

MOTOR

TRAY

PS2

UPPER LIMIT PS

TRAY LOWER

PS3

LIMIT PS

STAPLE PAPER UPPER

PS7

LIMIT PS

TRAY NO PAPER

PS15

DETECTION PS

M18

FOLDING STOPPER MOTOR

M19

FOLDING KNIFE MOTOR

FOLDING CONVEYANCE

M20

MOTOR

NC

FOLDING KNIFE

PS22

HP PS

PS25

FOLDING EXIT PS

FOLDING PASSAGE

PS26

DETECTION PS/2

FOLDING

PS27

STOPPER HP PS

FOLDING PASSAGE

PS28

DETECTION PS/1

PS29

FOLDING FILL UP PS

PS2IN

GND

PS3IN

GND

PS7IN

GND

GND

24V
24V

24V

24V
PGND
PGND

GND

GND

GND

GND

GND

GND

2-1
2-2

5V

3-B6

H

3-A1
3-A5

5V

3-B5

H

3-A2
3-A6

5V

3-B4

L

3-A3
3-B2

5V

3-B3

H

3-A4
3-B1

9-A5
9-A6

P

9-A1

P

9-A2

P

9-A3

P

9-A4

8-11

P

8-12

P

8-1

5V

8-2

L

8-3

L

8-4
8-5
8-6
8-7
8-8
8-9
8-10

5V

9-B12

H

9-A7
9-B6

5V

9-B11

H

9-A8
9-B5

5V

9-B4

H

9-A9
9-B10

5V

9-B9

L

9-A10
9-B3

5V

9-B8

H

9-A11
9-B2

5V

9-B7

H

9-A12
9-B1

M3DRV-F
M3DRV-R

PS15IN

M18DRVA
M18DRVA
M18DRVB
M18DRVB

M19DRVA
M19DRVB

DRV

H

24V

DRV

H

24V

DRV

H

24V

DRV

H

24V

24V-IN

5V
SGND
PGND
PGND
NC

P

RXD
SGND

P

CTS
SGND

P

DTR
SGND

P

TXD
SGND

P

RTS
SGND

P

DSR
SGND

M20BRK

M20CONT

M20CLK

M20PLL

M20F/R

PS22IN

PS25IN

PS26IN

PS27IN

PS28IN

PS29IN

FNS CB

2-8

FS-108/FS-108BM OVERALL WIRING DIAGRAM (3/3)

PI-108

51-A1
51-A2
51-A3
51-A4
51-A5
51-A6
51-A7
51-A8
51-A9
51-A10
51-A11
51-A12
51-A13
51-A14
51-A15
51-A16
51-A17
51-A18
51-A19
51-A20
51-A21
51-A22
51-A23
51-A24
51-A25
51-B1
51-B2
51-B3
51-B4
51-B5
51-B6
51-B7
51-B8
51-B9
51-B10
51-B11
51-B12
51-B13
51-B14
51-B15
51-B16
51-B17
51-B18
51-B19
51-B20
51-B21
51-B22
51-B23
51-B24
51-B25

H
H
L
H
L
L

L
L

H
H

PS201 IN
PS202 IN
PS203 IN
PS204 IN
PS205 IN
PS206 IN
NC
PS208 IN
PS209 IN
VR1 IN
5V
LED1
LED2
LED3
LED4
LED5
SW1
SW2
GND
M201 CONT
M201 F/R
MC201 CONT
SD201 CONT
SEET SET
NC
SGND
24V
PGND
GND
GND
GND
NC
GND
GND
GND
GND
GND
GND
5V
NC
5V
5V
5V
NC
5V
5V
5V
5V
5V
5V

OPTION

FNS CB

2-9