Konica Minolta FS-108, FS-108B User Manual
SERVICE MANUAL
MODELS
FS-108/108B
Finisher Units
(With Parts Catalog/Including PI-108)
JANUARY 2002
CSM - FS108
Blank page.
FS-108/108B
SERVICE MANUAL
JANUARY 2002
IMPORTANT NOTICE
Because of the possible hazards to an inexperienced
person servicing this equipment, as well as the risk of
damage to the equipment, Konica Business Technologies strongly recommends that all servicing be performed by Konica-trained service technicians only.
Changes may have been made to this equipment to
improve its performance after this service manual was
printed. Accordingly, Konica Business Technologies,
Inc., makes no representations or warranties, either
expressed or implied, that the information contained in
this service manual is complete or accurate. It is understood that the user of this manual must assume all risks
or personal injury and/or damage to the equipment while
servicing the equipment for which this service manual
is intended.
Corporate Publications Department
© 1999, KONICA BUSINESS TECHNOLOGIES, INC.
All rights reserved.
Printed in U.S.A.
CONTENTS
FS-108/108B
FS-108/108B
SAFETY PRECAUTIONS.......................................v
PRODUCT SPECIFICA TIONS .........................
CENTER CROSS SECTION .........................FS-3
DRIVE SYSTEM DIAGRAM...........................FS-4
Paper Conveyance Drive ......................... FS-4
Stacker Drive............................................FS-5
Folding Drive (FS-108BM only) ............... FS-5
PAPER CONVEYANCE PATH ....................... FS-6
Paper Conveyance Path .......................... FS-6
Non-Sort Mode ......................................... FS-7
Sort,Group Mode......................................FS-8
Subtray Mode ........................................... FS-9
Staple Mode ........................................... FS-10
Booklet Mode (FS-108BM only).............FS-12
EXTERNAL SECTION ................................. FS-13
Composition(FS-108/FS-108BM) .......... FS-13
Disassembly and Reassembly ............. FS-13
CONVEY ANCE SECTION ........................... FS-18
Composition ........................................... FS-18
Mechanisms ........................................... FS-19
Disassembly and Reassembly .............. FS-22
M1 (FNS Conveyance) Control..............FS-28
Gate Control ........................................... FS-30
M13 (Stacker Entrance) Control ............ FS-33
M5 (Alignment Plate/Upper ) Control.......
M15 (Alignment Plate/Lower)
(FS-108BM only)
M2 (Roller Shift)
M7 (Paper Exit Roller)
SD4 (Paper Exit Opening)
M8 (Paper Exit Opening)
STAPLER UNIT............................................FS-44
Composition ........................................... FS-44
Mechanism ............................................. FS-45
Disassembly and Reassembly .............. FS-49
Stapler Control ....................................... FS-52
MAIN TRAY SECTION................................. FS-55
Composition ........................................... FS-55
Mechanism ............................................. FS-55
Disassembly and Reassembly .............. FS-55
Main Tray Up/Down Control................... FS-58
FOLDING UNIT (FS-108BM ONLY) ............ FS-60
Composition ........................................... FS-60
Mechanism ............................................. FS-61
Disassembly and Reassembly .............. FS-62
Folding Unit Control ............................... FS-64
FS-108/FS-108BM ADJUSTMENTS ........... FS-66
Adjusting the Magnets on Conveyance
Guide Plate B ................................. FS-66
Adjusting the Magnets on Conveyance
Guide Plate C ................................. FS-67
Adjusting the Subtray Paper Exit Guide... FS-68
Adjusting the Paper Path Switching
Guide .............................................. FS-69
Adjusting the Bypass Guide................... FS-70
Control .........................
Control
............................
Control ...............
Control.........
Control...........
FS-35
FS-36
FS-38
FS-39
FS-41
FS-43
FS-1
Adjusting the Shift Position.................... FS-72
Adjusting Opening/Closing at the Paper
Exit.................................................. FS-73
Adjusting the Paper Exit Opening
Solenoid ......................................... FS-74
Adjusting the Paper Exit Opening Lower
Guide Plate..................................... FS-75
Adjusting the Tension Of the Stacker
Paper exit Belt ................................ FS-76
Adjusting the Mount Location Of the
Upper Alignment Plates ................. FS-76
Adjusting the Tension of the Upper Alignment
Plates Drive Timing Belt................. FS-77
Adjusting Mount Location of the Lower Align-
ment Plates (FS-108BM only)........FS-78
Adjusting the Tension of the Lower Alignment
Plate Drive Timing Belt ................... FS-79
Adjusting the Stapling Position
(Flat Stapling)................................. FS-79
Adjusting the Stapler Vertical Positioning.. FS-80
Adjusting the Staple Orientation (Stapling and
Folding) (FS-108BM only)..............FS-82
Adjusting the Staple Position (Stapling and
Folding) (FS-108BM only)..............FS-83
Adjusting the Angle Of The Folding Stopper
(FS-108BM only) ............................ FS-84
Adjusting the Folding Stopper Positions
(FS-108BM only) ............................ FS-85
Adjusting the Tension of the Stapler-Movement
Timing Belt ...................................... FS-86
Adjusting the Tension of the Stapler Rotation
Timing Belt ...................................... FS-86
Adjusting the Folding Force
(FS-108BM only) ............................ FS-87
DIAGRAMS
FS-108/FS-108BM ELECTRICAL PARTS
LAYOUT DRAWING ....................... FS-89
FS-108/FS-108BM CONNECTOR LAYOUT
DRAWING ...................................... FS-92
FS-108/FS-108BM OVERALL WIRING
DIAGRAM (1/3)............................... FS-95
FS-108/FS-108BM OVERALL WIRING
DIAGRAM (2/3)............................... FS-96
FS-108/FS-108BM OVERALL WIRING
DIAGRAM (3/3)............................... FS-97
FS-108/FS-108BM Timing Chart (Sort Mode,
8.5x11, 2-Page Original, 5 COPIES, 1:1
RATIO) ............................................ FS-98
FS-108/FS-108BM Timing Chart (2 Staple Mode,
8.5x11, 2-Page Original, 3 Copies,
1:1 RATIO) ...................................... FS-99
FS-108/FS-108BM Timing Chart (stapling and
folding, 8.5x11R, 3-Page Original, 2 Copies,
1:1 RATIO, 1-1 mode)................... FS-100
iii
Blank page.
SAFETY PRECAUTIONS
Installation Environment
Safety considerations usually are directed toward
machine design and the possibility of human error. In
addition, the environment in which a machine is operated must not be overlooked as a potential safety
hazard.
Most electrical equipment is safe when installed in a
normal environment. However, if the environment is
different from what most people consider to be normal, it is conceivable that the combination of the
machine and the room air could present a hazardous
combination. This is because heat (such as from
fusing units) and electrical arcs (which can occur
inside switches) have the ability to ignite flammable
substances, including air.
When installing a machine, check to see if there
is anything nearby which suggests that a potential hazard might exist. For example, a laboratory
might use organic compounds which, when they
evaporate, make the room air volatile. Potentially dangerous conditions might be seen or smelled. The
presence of substances such as cleaners, paint thinners, gasoline, alcohol, solvents, explosives, or similar items should be cause for concern.
If conditions such as these exist, take appropriate
action, such as one of the following suggestions.
effect may be caused by altering any aspect of the
machine’s design. Such changes have the potential
of degrading product performance and reducing
safety margins.
For these reasons, installation of any modification not
specifically authorized by Konica Business Machines
U.S.A., Inc., is strictly prohibited.
The following list of prohibited actions is not all-inclusive, but demonstrates the intent of this policy.
• Using an extension cord or any unauthorized
power cord adapter.
• Installing any fuse whose rating and physical size
differs from that originally installed.
• Using wire, paper clips, solder, etc., to replace or
eliminate any fuse (including temperature fuses).
• Removing (except for replacement) any air filter.
• Defeating the operation of relays by any means
(such as wedging paper between contacts).
• Causing the machine to operate in a fashion other
than as it was designed.
• Making any change which might have a chance
of defeating built-in safety features.
• Using any unspecified replacement parts.
• Determine that the environment is controlled
(such as through the use of an exhaust hood) so
that an offending substance or its fumes cannot
reach the machine.
• Remove the offending substance.
• Install the machine in a different location.
The specific remedy will vary from site to site, but the
principles remain the same. To avoid the risk of injury
or damage, be alert for changes in the environment
when performing subsequent service on any machine, and take appropriate action.
Unauthorized Modifications
Konica copiers have gained a reputation for being
reliable products. This has been attained by a combination of outstanding design and a knowledgeable
service force.
The design of the copier is extremely important. It is
the design process that determines tolerances and
safety margins for mechanical, electrical, and electronic aspects. It is not reasonable to expect individuals not involved in product engineering to know what
General Safety Guidelines
This copier has been examined in accordance with
the laws pertaining to various product safety regulations prior to leaving the manufacturing facility to
protect the operators and service personnel from
injury. However, as with any operating device, components will break down through the wear-and-tear of
everyday use, as will additional safety discrepancies
be discovered. For this reason, it is important that the
technician periodically performs safety checks on the
copier to maintain optimum reliability and safety.
The following checks, not all-inclusive, should be
made during each service call:
CAUTION: Avoid injury. Ensure that the copier is
disconnected from its power source before continuing.
• Look for sharp edges, burrs, and damage on all
external covers and copier frame.
• Inspect all cover hinges for wear (loose or broken).
• Inspect cables for wear, frays, or pinched areas.
v
• Ensure that the power cord insulation is not damaged (no exposed electrical conductors).
• Ensure that the power cord is properly mounted
to the frame by cord clamps.
• Check the continuity from the round lug (GND) of
the power cord to the frame of the copier -- ensure
continuity. An improperly grounded machine can
cause an electrically-charged machine frame.
Applying Isopropyl Alcohol
Care should be exercised when using isopropyl alcohol, due to its flammability. When using alcohol to
clean parts, observe the following precautions:
• Remove power from the equipment.
• Use alcohol in small quantities to avoid spillage
or puddling. Any spillage should be cleaned up
with rags and disposed of properly.
Safeguards During Service Calls
Confirm that all screws, parts, and wiring which are
removed during maintenance are installed in their
original positions.
• When disconnecting connectors, do not pull the
wiring, particularly on AC line wiring and high
voltage parts.
• Do not route the power cord where it is likely to
be stepped on or crushed.
• Carefully remove all toner and dirt adhering to any
electrical units or electrodes.
• After part replacement or repair work, route the
wiring in such a way that it does not contact any
burrs or sharp edges.
• Do not make any adjustments outside of the
specified range.
• Be sure that there is adequate ventilation.
• Allow a surface which has been in contact with
alcohol to dry for a few minutes to ensure that the
alcohol has evaporated completely before applying power or installing covers.
Summary
It is the responsibility of every technician to use professional skills when servicing Konica products. There
are no short cuts to high-quality service. Each copier
must be thoroughly inspected with respect to safety
considerations as part of every routine service call.
The operability of the copier, and more importantly,
the safety of those who operate or service the copier,
are directly dependent upon the conscientious effort
of each and every technician.
Remember...when performing service calls, use good
judgement (have a watchful eye) to identify safety
hazards or potential safety hazards that may be present, and correct these problem areas as they are
identified -- the safety of those who operate the copier
as well as those who service the copier depend on it!
vi
PRODUCT SPECIFICATIONS
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*
Type
FS-108: Finishing device implementing offset colla-
tion, stapling, and subtray eject
FS-108B: Finishing device implementing offset colla-
tion, stapling, subtray eject, stapling and
folding, and folding
Functions
Type of Paper: Same as for the main body.
Paper Size: 11x17R, 8.5x11R, 8.5x11R, 8.5x11,
8.5x5.5R, 8.5x5.5, 5.5x8.5R.
8.5x5.5R, 5.5x8.5R are not possible in
staple mode. 8.5x1 1, 8.5x5.5R, 8.5x5.5,
5.5x8.5R, 5.5x8.5 are not available in
booklet mode.
Paper Stacking Capacity:
Subtray exit mode:
Maximum 200 sheets (same size sheets
only)
Non-Staple, Group, and Offset modes:
Maximum 1500 sheets (11x17R, 8.5x14R)
Maximum 3000 sheets (8.5x5.5R, 8.5x5.5,
8.5x11R, 8.5x11)
Maximum 500 sheets (5.5x8.5R, 5.5x8.5)
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
FS-108/108B
Paper curling: Maximum 10mm
Booklet mode fBooklet mode f
Booklet mode f
Booklet mode fBooklet mode f
olding leolding le
olding le
olding leolding le
vel (FS-108BM onlvel (FS-108BM onl
vel (FS-108BM onl
vel (FS-108B onlvel (FS-108BM onl
y)y)
y)
y)y)
(For 22 lb. paper or equivalent, same size sheets only)
* May be unfolded after exit, provided that fold state can
be easily restored.
Amount of sort
off-setting: 30mm (when offsetting/grouping)
Tray: Main tray
Subtray
Booklet tray (FS-108B only)
Booklet Mode (FS-108B 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)
FS-1
FS-108/108B
Staple Mode
Number of pages
which may be stapled:
50 sheets maximum* (22 lb. highquality 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)
Machine Data
Power Source:
24 VDC, 5 VDC (supplied from the
main body)
Maximum Power
Consumption: 100VA
Weight:
FS-108: Approximately 120 lb.
FS-108B: Approximately 175 lb.
External Dimensions:
85
367
781656
1095
1151
Single staple (rear) Two staples Single staple
Booklet mode (stapling and folding)
Staple capacity:Staple capacity:
Staple capacity: 5000 staples/car tridge
Staple capacity:Staple capacity:
(FS-108B only)
@@@(front)
Booklet Mode (FS-108B only)
Stapling-and-folding:
Maximum 16 sheets (22 lb. high-quality paper)
Maximum 15 sheets (22 lb.
+ 1 sheet (53 lb.
high-quality paper)
Folding: Maximum 3 sheets (22 lb. high-quality paper)
high-quality paper)
Maintenance
Maintenance: Same as the main body.
Service Life: Same as main body.
Machine Operating Environment
Temperature: 50 to 86 F
Humidity: 10 to 80% RH
These specifications are subject to change without notice.
Option
PI-108 (Sheet feeder)
FS-2
CENTER CROSS SECTION
Sub-tray
Shift Unit
Main Tray Paper Exit Unit
FS-108/108B
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
FS-3
FS-108/108B
DRIVE SYSTEM DIAGRAM
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
FS-4
Stacker Drive
FS-108/108B
Paper Exit Roller
Paper Exit Belts
Stacker Entrance Roller
Swivel Roller
Paper Exit Arms
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)
FS-5
FS-108/108B
PAPER CONVEYANCE PATH
Paper Conveyance Path
The 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
FS-6
Non-Sort Mode
Exit to main tray
A paper exited from the main body is conveyed and exited to the main tray.
FS-108/108B
Sub-tray Gate
Gate
Conveyance Roller B
Main T ra y
Paper Exit Roller
Conveyance Roller A
Conveyance Roller D
Conveyance Roller C
FS-7
FS-108/108B
Sort, Group Mode
Exit to the main traExit to the main tra
Exit to the main tra
Exit to the main traExit to the main tra
Paper exited from the main body is conveyed and exited to the main tray. This mode has an offset 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.
yy
y
yy
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
FS-8
Subtray Mode
The subtray gate opens. Paper exited from the main body is conveyed and exited to the subtray.
Sub-tray Paper Exit Roller C
Sub-tray
Sub-tray Paper Exit Roller B
Sub-tray Paper Exit Roller A
FS-108/108B
Sub-tray Gate
Conveyance Roller B
Conveyance Roller A
FS-9
FS-108/108B
Staple Mode
(1) The gate switches to the staple mode.
(2) For 8.5x11R 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
FS-10
FS-108/108B
(4) The second and subsequent sets of paper are conveyed and stacked.
1) The first page stops in the stacker entrance with the bypass gate opened. The stacker entrance roller stops to wait for
the previous stack to be exited.
2) The bypass 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 8.5x11 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
FS-11
FS-108/108B
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
Upper
Alignment Plate
Paper Exit Belt
Stapler Unit
Gate
Pressure Roller A
Folding Roller A
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
FS-12
EXTERNAL SECTION
Screws
Hinge
Front Cover
Composition (FS-108/FS-108BM)
FS-108/108B
Paper Exit Cover
Sub-tray
Main T ra y
Rear Cover
Paper Exit Stopper Plate
Booklet T ra y
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
(2) Reinstall the rear cover in the opposite sequence to
removal.
Screws
Rear Cover
(3) Reinstall the front cover in the opposite sequence to
removal.
FS-13
FS-108/108B
Screw
Paper Exit Cover
Screw
3. Removing and Reinstalling the Top Cover
a. Procedure
(1) Remove the subtray.
(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 Cover
a. Procedure
(1) Remove the top cover.
(2) Remove the 2 set screws holding the paper exit cover
in place, and take off the paper exit cover.
Screws
(3) Reinstall the paper cover in the opposite sequence to
removal.
(6) Reinstall the top cover in the opposite sequence to
removal.
FS-14
FS-108/108B
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 cover.
(2) Reinstall the front side cover in the opposite sequence
to removal.
Main Tray
(4) Reinstall the main tray in the opposite sequence to
removal.
FS-15
FS-108/108B
Screws
Screws
Up-Down Stay
Wire Bracket
Wire Bracket
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
Up-Down Covers
(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 take off the front and rear
auxiliary side up down plates.
Rear Auxiliary
Side-Up-Down
Plate
Front Auxiliary
Side-Up-Down
Plate
Screws
Screws
Screws
FS-16
FS-108/108B
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 stay. (See “Removing and re-
attaching the up-down stay”.)
(8) Reinstall the stopper in the opposite sequence to re-
moval. 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.
Screws
Paper Exit
Stopper Plate
Up-Down Stay
Screws
Screws
Screws
Screws
FS-17
FS-108/108B
CONVEYANCE SECTION
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
FS-18
FS-108/108B
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
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 subtray paper exit rollers A, B,
and C. These components are driven by M1 (FNS conveyance) 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
conveyance roller, the folding conveyance belt, the folding knife, folding 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 by the gate, the subtray gate,
and the bypass gate. Each of these is controlled by the
ON/OFF action of a corresponding solenoid: SD1 (gate),
SD2 (subtray paper exit), and SD5 (bypass), 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.
FS-19
FS-108/108B
4. Stacker Unit
Alignment Plate/
Upper
Paper Exit
Belts
Paper Exit Arms
Alignment Plate/Upper
FS-108BM Only
M17 (Stapling and Folding Stopper Release)
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 by 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 by 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
FS-20
FS-108/108B
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 8.5x11R 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 paper 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
FS-21
FS-108/108B
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
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.
FS-22
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