Konica Minolta FS-105 User Manual

SERVICE MANUAL

MODEL

FS-105

JUNE 1998

CSM-FS105

TABLE OF CONTENTS

CONTENTS

SAFETY PRECAUTIONS........................................................v

FS-105

SPECIFICATIONS ................................................................. 1

Type ............................................................................... 1

Functions ....................................................................... 1

Stapler Kit ...................................................................... 1

Machine Data................................................................. 1

Maintenance .................................................................. 1

Operating Environment ................................................. 1

CENTER CROSS SECTION................................................. 3

DRIVE SYSTEM DIAGRAM....................................................4

Paper Conveyance System Drive .................................. 4

Stapler Unit Drive........................................................... 4

EXTERNAL SECTION ........................................................... 5

Construction .................................................................. 5

Disassembly and Reassembly .................................... 5

CONVEYANCE SECTION ..................................................... 8

Construction .................................................................. 8

Mechanisms..................................................................8

Disassembly and Reassembly .................................. 11

Paper Feed Motor (M801) Control ............................... 13

Conveyance Drum (M807) Control ..............................14

Tray Up/Down (M804) Control ..................................... 15

PAPER EXIT/STAPLER UNIT SECTION ............................. 16

Construction ................................................................ 16

Mechanisms................................................................16

Disassembly and Reassembly .................................. 18

Paper Alignment Control ............................................. 20

Paper Exit (M805) Control............................................ 21

Paper Stacking Control ............................................... 22

Stapler Movement (M806) Control............................... 24

Stapler Control .............................................................25

OTHER CONTROL FUNCTIONS ....................................... 27

Power On Operation ....................................................27

DIAGRAMS

ELECTRICAL PARTS LAYOUT DIAGRAM .......................... 28

CONNECTOR LAYOUT DIAGRAM...................................... 29

iii

This page left blank intentionally.

iv

PRODUCT SPECIFICATIONS

FS-105

Type

Type: Drum inverting type, multi-tray

finisher

Functions

Kinds of copy paper: Same as main body

Copy paper size: A11x17R, 8.5x14R, 8.5x11,

8.5x11R, 8.5x5.5, 8.5x5.5R,

5.5x8.5R

Modes : Available ✕ : Not available

Mode

Tray

Tray 1

Through mode
Offset mode
Staple mode

✕
✕

Sheet capacity

Tray

Tray 1

Tray 2,

Tray 3

Mode
Through mode
Through mode

Offset mode

Staple mode

Small sizes

100
300

–

Middle sizes

100
500
500

25 sets (Note)

Large sizes

The above numbers apply for same-size paper (22 lb. ,standard
paper) stacked continuously.
Small sizes : 5.5x8.5R
Middle sizes : 8.5x11, 8.5x11R, 8.5x5.5, 8.5x5.5R
Large sizes : 11x17R, 8.5x14R
Special paper: Other than standard paper (thin paper, thick

paper, blueprint masters, OHP film etc.)

Note: The maximum capacity (500 or 300 sheets) should not

be exceeded.

100
300
300

Tray 3Tray 2

Special paper

10

–
–
–

Stapler Kit

Number of copies that can be stapled together:

50 maximum (22 lb. fine quality paper,
thickness 5 mm maximum)

Staple position:

A = 9 mm (non-adjustable)
B = 10 mm (±3 mm adjustable)
C = 90 mm (±4 mm adjustable)

Stapler capacity:

5000 staples/cartridge

Machine Data

Power source: 24 V DC / 5 V (supplied from main

body)

Max. power consumption:

100 VA (FS-105 only)

Weight: approximately 72 lb. (with base)
Machine dimensions

Unit: inches

21.5

10.4

Paper weight

Tray 1: 14 - 54 lb.
Tray 2/3: 16 - 44 lb.
Copy paper curling: 10 mm maximum

Curling

Copy paper (5 sheets)

Offset amount: 30 mm (offset/group mode)

24.5

23.6

1

FS-105

Maintenance

Maintenance: Same as main body

Operating Environment

Temperature: 50°F ~ 91°F
Humidity: 20% to 80% RH

Note: The contents of this manual may be changed without

prior notice.

2

CENTER CROSS-SECTIONAL DRAWING

Paper exit roller

Tray 1

FS-105

Tray 2

Tray 3

Conveyance rollers

Paper exit roller (A)

Switching
guide

Conveyance drum

Stapler unit

Exit lever

Paper exit roller (A)

3

FS-105

DRIVE SYSTEM DRAWING

Paper Conveyance System Drive

Lift wire (rear)

Paper exit roller (A)

Tray 2 motor (M810)

Conveyance rollers

Paper exit roller

Conveyance drum
drive motor (M807)

Timing belt

Tray 3 motor
(M811)

Stapler Unit Drive

Alignment motor
(rear)(M808)

Alignment plate
(rear)

Paper exit roller (A)

Alignment plate
(front)

Paper feed motor
(M801)

Conveyance drum

Tray up/down motor (M804)

Lift wire (front)

Stapler unit (rear)

Stapler unit (front)

Alignment motor
(front)(M809)

Exit lever

Stapler movement
motor (M806)

Paper exit motor
(M805)

4

EXTERNAL SECTION

Construction

Tray 1

Tray 2

Tray 3

FS-105

Release lever

Top cover

Upper rear cover

Rear cover

Front cover

Disassembly and Reassembly

Replacing the paper exit roller (A) (for tray 2)

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

plugged from the power outlet.

Procedure

(1) Insert a flatbladed screwdriver or similar tool into the joint

of a paper exit roller (A), pry the roller open, and remove
it. Remove all paper exit rollers (A) (5 rollers) in this way.

Tray 2

Flatblade
screwdriver

Paper exit rollers (A)

(2) To install new rollers, snap two roller parts (top and

bottom) onto the exit roller shaft (5 locations).

Tray 3

Paper exit roller (A)

5

FS-105

Replacing the paper exit roller (A) (for tray 3)

Procedure

(1) Use the operation panel on the main body to specify tray

3 and raise tray 2 to the topmost position.

(2) Turn the power OFF of the main body and unplug the

power cord from the power outlet.

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

plugged from the power outlet.

(3) Insert a flatbladed screwdriver or similar tool into the joint

of apaper exit roller (A), pry the roller open, and remove
it. Remove all paper exit roller (A) (5 rollers) in this way.

Tray 2

Tray 3

Paper exit roller (A)

Flatblade
screwdriver

Paper exit rollers (A)

Removing and Reinstalling tray 2

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

plugged from the power outlet.

Procedure

(1) Remove the two set screws, then remove the connector

cover.

Tray 2

Set screws

Tray 3

Connector cover

(2) Disconnect the two connectors (CN728, CN751).

(4) To install new rollers, snap two roller parts (top and

bottom) onto the exit roller shaft (5 locations).

Connector
(CN728)

Tray 2

Connector
(CN751)

(3) Remove the two set screws, then remove the stopper

bracket (front).

(4) Lift the front side of tray 2 up, then rotate it towards the rear

and remove it.

6

FS-105

Stopper bracket
(front)

Set
screws

Tray 3

Tray 2

(5) Reinstall tray 2 in the opposite sequence to removal.

Removing and Reinstalling tray 3

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

plugged from the power outlet.

Procedure

(1) Remove tray 2.
(2) Remove the two set screws, then remove the connector

cover. (Refer to “Removing and Reinstalling tray 2”.)

(3) Disconnect the two connectors (CN729, CN752). (Refer

to “Removing and Reinstalling tray 2”.)

(4) Remove the two set screws, then remove the stopper

bracket (front). (Refer to “ Removing and Reinstalling tray
2”.)

(5) Lift the front side of tray 3 up, then rotate it towards the rear

and remove it. (Refer to “ Removing and Reinstalling tray
2”.)

(6) Reinstall tray 3 in the opposite sequence to removal.

Removing and Reinstalling the external covers

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

plugged from the power outlet.

Procedure

(1) Remove the four set screws A , then remove the front

cover.

(2) Remove the five set screws B , then remove the rear

cover.

(3) Remove the three set screws C , then remove the upper

rear cover.
(4) Remove the set screw D , then remove the release lever.
(5) Remove the four set screws E , then release the top

cover.

Release lever

Set screw D

Set
screws
E

Front cover

Rear
cover

Top cover

Set screws E

Upper rear
cover

Set
screws
C

Set
screws
B

Rear
cover

Set screws A

Set screws B

Set screws A

Front cover

(6) Reinstall the external covers in the opposite sequence to

removal.

7

FS-105

CONVEYANCE SECTION

Construction

Gate solenoid (SD801)

Conveyance
drum

Switching guide

Conveyance
drum drive motor
(M807)

Tray up/down
motor (M804)

Conveyance
drum

Lift wire

Paper feed motor (M801)

Mechanism

Mechanisms

Paper path switching

∗1

Paper conveyance

∗2

Tray lift (up/down)

∗3

∗∗

∗1:Paper path switching

∗∗

The paper exited from the fixing unit in the main body passes
through the switching guide which sends it to tray 1 or tray 2/3.
The switching guide is operated by the on/off state of the gate
solenoid (SD801).

Switching guide
Conveyance roller
Conveyance drum
Wire drive (Lift wire)

Methods

Lift wire

Switching guide

Gate solenoid (SD801)

8

FS-105

∗∗

∗2:Paper Conveyance

∗∗

When the paper has been switched to tray 2/3 by the switching
guide, the conveyance roller conveys it to the conveyance
drum until it enters the grip plate on the circumference of the
drum.

Switching

Conveyance
rollers

Grip plate

Spring

guide

Paper

Cam

Conveyance
drum

The grip plate closes due to the force of a cam and spring
arrangement and grasps the paper.

When the rotation speed of the drum increases, the paper is
pushed out and separated from the conveyance drum. When
the grip plate on the conveyance drum reaches the paper exit
position, the paper hits a stopper and is separated from the grip
plate.

Paper

Grip plate

Conveyance
drum

Stopper

Behind the grip plate on the drum circumference, there are two
alignment plates. When these reach the paper exit position,
their own weight causes them to open, and the rubber section
at the plate tip aligns the paper against the stopper.

Grip plate

Spring

Conveyance drum

Paper

Cam

Alignment
plates

Conveyance
drum

Paper

Grip plate

Stopper

The grip plate and alignment plates on the conveyance drum
do not use electrical control, they operate only through the
rotation of the drum. (The grip plate is driven by the drum via
a cam arrangement, and the alignment plates are driven by the
centrifugal force and their own weight.)
The conveyance drum and conveyance rollers are controlled
electrically by the conveyance drum drive motor (M807) and
the paper feed motor (M801).

9

FS-105

∗∗

∗3: Tray lift

∗∗

The paper exit position for the paper sent to tray 2/3 is fixed.
Switching between tray 2 and tray 3 is carried out by changing
the tray position with the tray lift (up/down) mechanism.
The tray lift mechanism is driven by the tray up/down motor
(M804) whose driving force is transmitted to the tray by a wire
arrangement.

Lift wire

Tray 2

Tray up/down
motor (M804)

Tray 3

10

FS-105

Disassembly and Reassembly

Removing and Reinstalling the lift wire

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

plugged from the power outlet.

Procedure

(1) Remove tray 2 and tray 3.
(2) Remove the external covers.
Note: The lift wire must be removed (and installed) first on the

front side and then on the rear side.

(3) Remove the two set screws, then release the wire fasten-

ing bracket (front).

(4) Loosen the two set screws, then release the pulley

tensioning plate (front).
(5) Remove the e-ring of the lower pulley (front).
(6) Remove the lower pulley (front), then remove the lift wire

(front).

Set screws

Wire fastening bracket

(7) Attach the metal ball of the lift wire to the inside of the lower

pulley (front) and pass the pulley onto the shaft. The end
of the wire attached to the pulley must be the short end as
seen from the wire fastening bracket.

Note: When installing the lower pulley (front) onto the shaft,

align the pin on the shaft with the lower pulley (front).

(8) Wind the lift wire five turns around the lower pulley (front)

and then hook the wire onto the upper pulley (front).
Note: Wind the wire clockwise as seen from the front.
(9) Route the lift wire from the upper pulley (front) back down

to the lower pulley (front) and wind it one turn in clockwise

direction around the pulley. Then attach the metal ball at

the end of the wire to the side of the lower pulley (front).
(10) Attach the e-ring to secure the lower pulley (front).

Pulley tensioning plate (rear)

Upper pulley (rear)

Lift wire

Pulley tensioning plate (front)

Upper pulley (front)

Metal ball
(winding start)

Metal ball (winding end)

Set screws

Wire fastening bracket (rear)

Lower pulley (rear)

Metal ball (winding end)

1 turn 5 turn

Metal ball (winding start)

Pin

Shaft

Metal ball (winding start)

Set screws

Lift wire

Wire fastening bracket (front)

Set screws

E-ring

Lower pulley (front)

Metal ball
(winding end)

1 turn5 turn

11

FS-105

(11) Pull the pulley tensioning plate (front) up until a tension of

2.3 kg is achieved, then fasten the plate with the two set
screws.

Note: Use a tension gauge or similar when fastening the

pulley tensioning plate, to assure that the specified
tension value is achieved.

Specification: 2.3 kg

Tension gauge

Set
screws

Pulley
tensioning
plate (front)

Lift wire

(12) Provisionally fasten the two set screws of the wire fasten-

ing bracket (front).

(13) Remove the lift wire on the rear side in the same way as

described in steps (3) through (6).

(14) Attach the metal ball of the lift wire to the inside of the lower

pulley (rear) and pass the pulley onto the shaft. The end
of the wire attached to the pulley must be the short end as
seen from the wire fastening bracket.

Note: When setting the lower pulley (rear) onto the shaft, align

the pin on the shaft with the lower pulley (rear).

(15) Wind the lift wire five turns around the lower pulley (rear)

and then hook the wire onto the upper pulley (rear).
Note: Wind the wire counterclockwise as seen from the front.
(16) Route the lift wire from the upper pulley (rear) back down

to the lower pulley (rear) and wind it one turn in

counterclockwise direction around the pulley. Then at

tach the metal ball at the end of the wire to the side of the

lower pulley (rear).
(17) Attach the e-ring to secure the lower pulley (rear).

(18) Fasten the pulley tensioning plate (rear) and wire fasten-

ing bracket (rear) as described in steps (11) and (12).

(19) Install the tray 2 and move its position in the vertical

direction so that the tray is flush with the lower limit
detection plate. Then permanently secure the wire fasten­ing brackets (front) and (rear) which were provisionally
fastened previously.

Note: To check the flush condition, use a metal ruler or other

suitable tool on both the front and the rear side.

Lower
limit
detection
plate

Tray 2

Metal scale

12

FS-105

Paper Feed Motor (M801) Control

Signals

Input signals

PS802 (PS802 → FS CB)

Paper detection signal at the paper exit section entrance
of the tray 1.
[H]: Paper is detected
[L]: Paper is not detected

PS803 (PS803 → FS CB)

Paper detection signal at the paper exit section entrance
of the tray 2 and tray 3 side.
[H]: Paper is detected
[L]: Paper is not detected

MS801 (MS801 → FS CB)

Power supply line for various loads. When finisher is in
mechanical contact with main body, 24 V DC is supplied
to finisher.

FS RXD (MAIN BODY → FS CB)

Serial data line for transmitting operation status informa­tion from control board in main body to finisher.

FS R REQ (MAIN BODY → FS CB)

Send request signal from main body to finisher.

FS T ACK (MAIN BODY → FS CB)

Send enable signal from main body to finisher.

Output signals

M801 DRIVE A, A, B, B (FS CB → M801)

M801 (conveyance) ON/OFF drive signal

Paper exit conveyance takes place as a result of the transmis­sion of the drive force of motor M801 (paper feed) to the paper
exit rollers and conveyance rollers. The paper conveyance
path is switched between tray 1 or tray 2/3 by solenoid SD801
(gate ).
M801 and SD801 are controlled by the FS CB (FS control
board).

Operation

Gate switching operation

Normally, SD801 is OFF and the gate allows paper to exite to
tray 2/3. When tray 1 is selected as the paper exit tray, SD801
goes ON, the gate is switched, and the paper is conveyed to
tray 1.

Conveyance operation

M801 is turned ON and OFF in conjunction with the copy
operation of the main body. During operation of the main body,
the M801 rotates constantly, enabling paper conveyance at
any time.
When paper has been conveyed to tray 2/3, the status of the
PS802 (conveyance drum entrance detect) and main body PS
(paper exit detect sensor) causes the M801 to be switched
from low speed to high speed. The high-speed activation signal
and the rotation speed depend on the paper size.

SD801 DRIVE (FS CB → SD801)

SD801 (gate) ON/OFF drive signal
[L]: SD801 ON
[H]: SD801 OFF

FS TXD (FS CB → MAIN BODY)

Serial data line for transmitting operation status informa­tion from finisher to main body control board.

FS T REQ (FS CB → MAIN BODY)

Send request signal from finisher to main body.

FS R ACK (FS CB → MAIN BODY)

Send enable signal from finisher to main body.

13

FS-105

Conveyance Drum (M807) Control

Signals

Input signals

PS801 (PS801 → FS CB)

Encoder slit detection signal
[L]: Slit is detected
[H]: Slit is not detected

PS802 (PS802 → FS CB)

Paper detection signal at the exit section entrance of the
tray 1.
[L]: Paper is not detected
[H]: Paper is detected

FS RXD (MAIN BODY → FS CB)

Serial data line for transmitting operation status informa­tion from control board in main body to finisher.

FS R REQ (MAIN BODY→ FS CB)

Send request signal from main body to finisher.

FS T ACK (MAIN BODY → FS CB)

Send enable signal from main body to finisher.

Output signals

M807 DRIVE A, A, B, B (FS CB → M807)

M807 (conveyance drum drive) ON/OFF drive signal

The paper that has been sent to tray 2/3 is exited into the
respective tray by the conveyance drum. The conveyance
drum is driven by M807 (conveyance drum drive) which is
controlled by the FS CB (FS control board).

Operation

Conveyance operation

When PS802 (conveyance drum entrance detect) detects the
leading edge of the paper and goes ON, M807 is turned ON
after the specified time, and the conveyance drum starts to
rotate.
To convey one sheet of paper, the M807 is switched through
a predetermined sequence of three speeds. When the convey­ance drum reaches the standby position, the motor is switched
OFF.
During this time, the drum makes one revolution which includes
gripping, conveying, and releasing the paper.

M807 speed control

When the conveyance drum rotation pulses reach a predeter­mined number, the rotation speed is changed.

FS TXD (FS CB → MAIN BODY)

Serial data line for transmitting operation status informa

tion from finisher to main body control board.

FS T REQ (FS CB → MAIN BODY)

Send request signal from finisher to main body.

FS R ACK (FS CB → MAIN BODY)

Send enable signal from finisher to main body.

14

FS-105

Tray Up/Down (M804) Control

Tray squeeze prevention

During tray upward or downward movement, if a foreign object
is caught between the tray and the finisher unit, MS802 (up/
down (upper)) or MS803 (up/down (lower)) will mechanically
go OFF, causing the power supply line of M804 to be cut off.

Signals

Input signals

PS805 (PS805 → FS CB)

Tray 2 upper limit detection signal.
[L]: Upper limit is detected
[H]: Upper limit is not detected

PS806 (PS806 → FS CB)

Tray 3 lower limit detection signal.
[L]: Lower limit is detected
[H]: Lower limit is not detected

MS802/MS803 (MS802/MS803 → FS CB)

Power supply line for M804. Forcibly interrupted when a
foreign object is caught between tray and finisher unit.

FS RXD (MAIN BODY → FS CB)

Serial data line for transmitting operation status informa­tion from control board in main body to finisher.

FS R REQ (MAIN BODY → FS CB)

Send request signal from main body to finisher.

FS T ACK (MAIN BODY → FS CB)

Send enable signal from main body to finisher.

The paper exit position of the conveyance drum is always fixed,
and tray switching is carried out by raising or lowering tray 2/3.
The up/down motion is achieved by transmitting the driving
force of motor M804 (tray up/down) to the lift wires connected
to each tray. This operation is controlled by the FS CB (FS
control board).

Operation

Normally, the paper exit position of the conveyance drum is
aligned with tray 2. Therefore no lift operation is carried out
when tray 2 is selected.

Upward movement

When tray 3 is selected as paper exit tray and PS806 (tray
lower limit detect) is ON, M804 goes ON (forward rotation).
Tray 2 and tray 3 are then raised simultaneously.
When the upward movement causes tray 2 to switch PS805
(tray upper limit detect) to ON, M804 goes OFF and the upward
movement stops. Tray 3 is now aligned with the paper exit
position of the conveyance drum.

Downward movement

When tray 2 is selected as paper exit tray and PS805 is ON,
M804 goes ON (reverse rotation). Tray 2 and tray 3 are then
lowered simultaneously.
When the downward movement causes tray 3 to switch PS806
to ON, M804 goes OFF and the upward movement stops. Tray
2 is now aligned with the paper exit position of the conveyance
drum.

Output signals

M804 DRIVE 1, 2 (FS CB → M804)

M804 drive signals.
M804 rotation direction is controlled by switching the
current direction of these two signals.

State
Upward movement
Downward movement
Stop

FS TXD (FS CB → MAIN BODY)

Serial data line for transmitting operation status informa­tion from finisher to main body control board.

FS T REQ (FS CB → MAIN BODY)

Send request signal from finisher to main body.

FS R ACK (FS CB → MAIN BODY)

Send enable signal from finisher to main body.

M804 DRIVE 1

H

L

H

M804 DRIVE 2

L
H
H

15

FS-105

PAPER EXIT/STAPLER UNIT SECTION

Construction

Paper exit rollers (A)

Tray 2 (3) motor
(M810, M811)

Mechanism

Mechanisms

∗1

Paper alignment

∗2

Paper exit

∗3

Paper stacking
Stapler unit movement

∗4

Staple accident prevention

Alignment plate
(front)

Tray 2 (3)

Alignment motor
(front) (M809)

Methods
Separate guides for front and rear
Exit lever
Paper exit roller (A)
Stapler unit movement motor
Shutter cover

Stapler unit
(front)

Exit levers

Stapler movement
motor (M806)

Alignment motor (rear)
(M808)

Alignment plate (rear)

Stopper

Stapler
unit (rear)

Paper exit
motor (M805)

Alignment plate (front)

∗∗

∗1:Paper alignment

∗∗

The paper being conveyed by the conveyance drum is aligned
by the alignment plates. Separately driven guides are provided
for front and rear, to allow independent movement and asym­metrical operation in shift mode.
The alignment plates are driven by the alignment motor (front)
(M809) and alignment motor (rear) (M808).

Alignment motor (front)
(M809)

16

∗∗

∗2:Paper exit

∗∗

The paper being supplied by the conveyance drum is conveyed
to the stapling position, regardless of whether stapling will be
carried out or not. If stapling is enabled, the stapled stack is
exited to tray 2 or 3 after stapling. If stapling is not enabled,
each sheet is exited individually to tray 2 or 3.
This movement is performed by the exit levers which are driven
by the paper exit motor (M805).

Exit levers

Paper exit motor
(M805)

FS-105

Tray 2/3 motor
(M810, M811)

Paper exit roller (A)

∗∗

∗4:Staple accident prevention

∗∗

A shutter cover is provided to prevent the user from inadvert­ently inserting a finger etc. into the stapler. The shutter cover
is driven by the SD802 (shutter solenoid) which is ON during
stapler operation and during stapler unit movement. The
shutter cover blocks the clearance between the paper exit tray
and the stapler unit.

∗∗

∗3:Paper stacking

∗∗

A spring arrangement in the bottom of tray 2 and tray 3 lifts the
bottom plate up, so that it always is in direct contact or not more
than 3 mm away from the paper exit roller assembly.
[ Operation in through mode ]
The paper is stacked on the tray by the movement of the exit
lever and the rotation of the paper exit roller (A) of each tray.
When the paper exit roller (A) turns, the tip of the paper is
grasped by the rollers and is stacked under the rollers.
[ Operation in offset mode ]
The paper is offset by the alignment plates (front/rear), and is
stacked on the tray by the movement of the exit lever and the
rotation of the paper exit roller (A) of each tray.
By repeating this action, the tip of the paper is grasped by the
rollers and is stacked under the rollers.

Tray 2

Paper exit roller (A)

Shutter solenoid
(SD802)

Conveyance
drum

Spring

Stapler
unit

Exit lever

Shutter
cover

17

FS-105

Disassembly and Reassembly

Replacing the stapler cartridge

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

plugged from the power outlet.

Procedure

(1) Push the release lever to remove the finisher from the

main body.

(2) Push the release levers of the stapler units down and

remove the stapler cartridges.

Release lever

Release lever

Stapler
cartridge

(3) Push the new stapler cartridge all the way in, until it is

locked in the stapler unit.

Stapler
cartridge

Removing and Reinstalling the stapler unit

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

plugged from the power outlet.

Procedure

(1) Remove the set screw (one each), then remove the

alignment plate (front) and alignment plate (rear).

Alignment
plate
(front)

Alignment
plate
(rear)

Lower limit
detection plate

(2) Remove the four set screws, then remove the stapler unit

cover (lower).

(3) Disconnect the six connectors (CN747, CN748, CN749,

CN753, CN754, CN755).
(4) Remove the four set screws, then pull the stapler unit out.
Caution: Take care not to bend the film on the exit side during

reinstallation.

Film

Set screws

Set
screws

Top cover

Stapler unit

Set screws

Internal connectors
(CN747, CN748,
CN749, CN753,
CN754, CN755)

Set screws

Stapler unit cover
(lower)

Set screws

18

FS-105

(5) Turn the stapler unit gear, then open the stapler unit

(front) and stapler unit (rear) towards the outside.

(6) Remove the two set screws each, then remove the

connector cover of each stapler unit.

Set screws

Connector
cover

Set
screws

Set
screws

Connector
cover

Stapler
unit (rear)

Stapler unit
(front)

Stapler unit movement gear

(7) Remove the two set screws each, then remove the stapler

unit (front) and stapler unit (rear).

(8) Disconnect the connector (CN745, CN746) from each

stapler unit.

(9) Remove the two set screws, then remove the stapler unit.

Set screws

Stapler chassis

Stapler unit

(10) Reinstall the stapler unit in the opposite sequence to

removal.

Set screws

Connector
(CN745)

Stapler
unit (front)

Set screws

Stapler unit
(rear)

Connector
(CN746)

19

FS-105

Paper Alignment Control

The paper exited by the conveyance drum is aligned on the
center of the respective exit tray by the alignment plates driven
by the alignment motor (rear) (M808) and alignment motor
(front) (M809). M808 and M809 are controlled by the FS CB
(FS control board).

Operation

Normal alignment operation

The alignment plate (front) and alignment plate (rear) work
symmetrically, with the tray center serving as the reference
point. The guides repeat the alignment and release pattern.
The rotation direction of M809 and M808 is therefore always
opposite.
The ON timing of M809 and M808 is referenced to the ON/OFF
state of PS802 (conveyance drum entrance detect) or PS804
(paper through detect). Which sensor is used depends on the
paper size.

Shift alignment operation

During the first alignment operation, the alignment plate (front)
and alignment plate (rear) are front and rear symmetric with
respect to operation as reference with the center of the tray and
paper is exited.
During the next alignment operation, the alignment plate (front)
and alignment plate (rear) are not front and rear symmetric with
respect to operation as reference with the center of the tray and
paper is exited at the position shift to the first copy.
From now on, these operation are repeated.

Staple mode operation

In staple mode, M809 and M808 perform release operation
after stapling is completed. The ON/OFF timing is referenced
to the OFF timing of the stapler motor that has last finished to
operate (M802 or M803).

Signals

Input signals

PS802 (PS802 → FS CB)

Paper detection signal at the paper conveyance section
entrance of the tray 2/3.
[L]: Paper is not detected
[H]: Paper is detected

PS804 (PS804 → FS CB)

Paper detection signal at the conveyance drum circum­ference.
[L]:Paper is not detected
[H]: Paper is detected

PS815 (PS815 → FS CB)

Home position detection signal for alignment plate (rear).
[L]:Alignment plate is not in home position
[H]:Alignment plate is in home position

PS816 (PS816 → FS CB)

Home position detection signal for alignment plate (front).
[L]:Alignment plate is in home position
[H]:Alignment plate is not in home position

FS RXD (MAIN BODY → FS CB)

Serial data line for transmitting operation status informa­tion from control board in main body to finisher.

FS R REQ (MAIN BODY → FS CB)

Send request signal from main body to finisher.

FS T ACK (MAIN BODY → FS CB)

Send enable signal from main body to finisher.

20

FS-105

Output signals

M808 DRIVE A, A, B, B (FS CB → M808)

M808 (alignment motor (rear)) ON/OFF drive signal

M809 DRIVE A, A, B, B (FS CB → M809)

M809 (alignment motor (front)) ON/OFF drive signal

FS TXD (FS CB → MAIN BODY)

Serial data line for transmitting operation status informa­tion from finisher to main body control board.

FS T REQ (FS CB → MAIN BODY)

Send request signal from finisher to main body.

FS R ACK (FS CB → MAIN BODY)

Send enable signal from finisher to main body.

Paper Exit (M805) Control

When the alignment or stapling operation is completed, the
paper is pushed out to tray 2 or tray 3 by the exit levers. The
levers are driven by M805 (paper exit motor) via a set of gears.
Operation is controlled by the FS CB (FS control board).

Operation

Non-stapling mode operation

The drive gear for the exit levers is controlled using the home
position detected by PS813 (paper exit motor HP).
When PS804 (paper through detect) detects the paper leading
edge and goes ON, M805 goes ON for the specified time and
drives the exit levers. This causes PS813 to go OFF.
The exit levers are connected to the circumference of the drive
gear. Within one rotation of the gear, the paper is pushed out
(forwarding motion) and returned to the standby position
(return motion).
When PS813 goes ON, the exit levers have returned to the
standby position and M805 is turned OFF.

21

FS-105

Stapling mode operation

In stapling mode, when the stapler motor (M802 or M803) that
has last finished to operate goes OFF, M805 goes ON for the
specified time and drives the exit levers. Other operations are
the same as for non-stapling mode.

Signals

Input signals

PS804 (PS804 → FS CB)

Paper detection signal at the conveyance drum circum­ference.
[L]: Paper is not detected
[H]: Paper is detected

PS813 (PS813 → FS CB)

Home position detection signal for exit lever.
[L]: Exit lever is not in home position
[H]: Exit lever is in home position

FS RXD (MAIN BODY → FS CB)

Serial data line for transmitting operation status informa­tion from control board in main body to finisher.

FS R REQ (MAIN BODY → FS CB)

Send request signal from main body to finisher.

FS T ACK (MAIN BODY → FS CB)

Send enable signal from main body to finisher.

Paper Stacking Control

Output signals

M805 DRIVE A, A, B, B (FS CB → M805)

M805 (paper exit) ON/OFF drive signal

FS TXD (FS CB → MAIN BODY)

Serial data line for transmitting operation status informa­tion from finisher to main body control board.

FS T REQ (FS CB → MAIN BODY)

Send request signal from finisher to main body.

FS R ACK (FS CB → MAIN BODY)

Send enable signal from finisher to main body.

The paper exited to tray 2 or tray 3 is placed on top of the paper
exit rollers of the respective tray. The drive force of motor M810
(tray 2) or M811 (tray 3) is used to operate the rollers and stack
the paper on the tray.
M810 and M811 operation is controlled by the FS CB (FS
control board).

Operation

Paper stacking control

When M805 (paper exit) goes ON, M810 or M811 are set to ON
after the specified time. When M805 goes OFF, M810 or M811
are set to OFF after the specified time. While the motor is ON,
the rollers of the tray are driven and the paper that was placed
on the rollers is stacked.
The stacking section of the tray is pushed up by a spring. When
the maximum allowable number of sheets has been stacked,
the stacking section contacts the bottom of the tray and PS 807
(tray 2 stack-full detect) or PS 809 (tray 3 stack-full detect) goes
ON.
When PS807 or PS809 are ON, no copy operation will be
carried out when the respective tray is selected.

22

Tray auto-switching control

When copying is carried out with tray 2 or tray 3 specified as
output tray and the specified tray becomes full, causing PS807
or PS809 to become ON, the output tray is automatically
switched to the other tray.
This operation is also valid if tray 1 is specified as the output
tray. The output tray will be switched to tray 2 or tray 3.
Normally, tray 2 will be selected. If it is full, tray 3 will be
selected. Switching from tray 2 or tray 3 to tray 1 is not possible.

Signals

Input signals

PS807 (PS807 → FS CB)

Tray 2 stack-full detection signal
[L]: Stack full condition not detected
[H]: Stack full condition detected

PS809 (PS809 → FS CB)

Tray 3 stack-full detection signal
[L]: Stack full condition not detected
[H]: Stack full condition detected

FS RXD (MAIN BODY → FS CB)

Serial data line for transmitting operation status informa­tion from control board in main body to finisher.

FS R REQ (MAIN BODY → FS CB)

Send request signal from main body to finisher

FS T ACK (MAIN BODY → FS CB)

Send enable signal from main body to finisher

FS-105

Output signals

M810 DRIVE A, A, B, B (FS CB → M810)

M810 (tray 2) ON/OFF drive signal

M811 DRIVE A, A, B, B (FS CB → M811)

M811 (tray 3) ON/OFF drive signal

FS TXD (FS CB → MAIN BODY)

Serial data line for transmitting operation status informa­tion from finisher to main body control board.

FS T REQ (FS CB → MAIN BODY)

Send request signal from finisher to main body

FS R ACK (FS CB → MAIN BODY)

Send enable signal from finisher to main body

23

FS-105

Stapler Movement (M806) Control

FS T ACK (MAIN BODY → FS CB)

Send enable signal from main body to finisher

Output signals

M806 DRIVE A, A, B, B (FS CB → M806)

M806 (stapler movement) ON/OFF drive signal

FS TXD (FS CB → MAIN BODY)

Serial data line for transmitting operation status informa-

tion from finisher to main body control board.

FS T REQ (FS CB → MAIN BODY)

Send request signal from finisher to main body.

FS R ACK (FS CB → MAIN BODY)

Send enable signal from finisher to main body.

The position of the stapler units at the front and rear with
respect to the paper is adjusted using the driving force of the
stapler movement motor (M806). Operation of M806 is con­trolled by the FS CB (FS control board).

Operation

Normally, the stapler units are stationary, positioned so that
the stapling is carried out parallel to the paper edge. This
position is detected by PS814 (stapler unit HP).
When the stapling position is changed according to a com­mand from the main body, M806 goes ON and the two stapler
units at the front and rear are moved simultaneously. The
M806 OFF timing is controlled using the number of drive step
from when PS814 went OFF.

Signals

nput signals

PS814 (PS814 → FS CB)

Home position detection signal for stapler unit
[L]: Stapler unit is in home position
[H]: Stapler unit is not in home position

MS804 (MS804 → FS CB)

Power supply line for M802 (stapler (front)), M803 (stapler
(rear)), and M806. Forcibly interrupted when the shutter
is raised.

FS RXD (MAIN BODY → FS CB)

Serial data line for transmitting operation status informa­tion from control board in main body to finisher

FS R REQ (MAIN BODY → FS CB)

Send request signal from main body to finisher

Revised 10/00

24

FS-105

Stapler Control

M803
M803

M802
M802

Stapling is carried out by driving M802 (stapler (front)) and
M803 (stapler (rear)). Operation of M802 and M803 is control­led by the FS CB (FS control board).
The maximum number of sheets for stapling and the operation
to be carried out when the number is exceeded can be set with
25 mode of the main body. For details, refer to the adjustment
section of the main body

Operation

Stapling operation

M802 goes ON when the last paper alignment operation is
completed, and goes OFF when PS817 (stapler HP (front))
goes ON.
This causes the front side of the paper to be stapled.
When stapling at two locations is carried out, M803 goes ON
after the specified time, measured from the point when M803
goes ON. It goes OFF when PS820 (stapler HP (rear)) goes
ON.

M803

M802

No-staple detection

The front and rear stapler units are each equipped with a no­staple sensor (PS818, PS821). When staples have run out
and the no-staple condition is detected, a message is shown
on the display of the main body.

Signals

Input signals

PS817 (stapler unit (front) → FS CB)

Home position detection signal for M803
[L]: Home position is detected
[H]: Home position is not detected

PS818 (stapler unit (front) → FS CB)

Stapler unit (front) no-staple detection signal.
[L]: No-staple condition is detected
[H]: No-staple condition is not detected

PS820 (stapler unit (rear) → FS CB)

Home position detection signal for M802
[L]: Home position is detected
[H]: Home position is not detected

PS821 (stapler unit (rear) → FS CB)

Stapler unit (rear) no-staple detection sensor signal
[L]: No-staple condition is detected
[H]: No-staple condition is not detected

MS804 (MS804 → FS CB)

Power supply line for M802 (stapler (front)), M803 (stapler
(rear)), and M806 (stapler movement). Forcibly inter
rupted when the shutter is raised.

FS RXD (MAIN BODY → FS CB)

Serial data line for transmitting operation status informa­tion from control board in main body to finisher.

FS R REQ (MAIN BODY → FS CB)

Send request signal from main body to finisher.

FS T ACK (MAIN BODY → FS CB)

Send enable signal from main body to finisher.

PS819 (Stapler unit (front) → FS CB)

stapler unit (front) no-staple sensor signal at the stapling
position.
[L]: No-staple condition is detected
[H]: No-staple condition is not detected

PS822 (Stapler unit (rear) → FS CB)

stapler unit (rear) no-staple sensor signal at the stapling
position.
[L]: No-staple condition is detected
[H]: No-staple condition is not detected

Shutter control

During stapler unit movement and during stapling operation,
the SD802 (shutter) is ON, causing the shutter to block the
clearance between the paper exit tray and the stapler unit.

25

Revised 10/00

FS-105

Output signals

M802 DRIVE 1, 2 (FS CB → stapler unit (front))

M802 drive signals.
M802 rotation direction is controlled by switching the
current direction of these two signals.

M803 DRIVE 1, 2 (FS CB → stapler unit (rear))

M803 drive signals.
M803 rotation direction is controlled by switching the
current direction of these two signals.

SD802 DRIVE (FS CB → SD802)

SD802 (shutter) ON/OFF drive signal.
[L]: SD802 ON
[H]: SD802 OFF

FS TXD (FS CB → MAIN BODY)

Serial data line for transmitting operation status informa­tion from finisher to main body control board.

FS T REQ (FS CB → MAIN BODY)

Send request signal from finisher to main body.

FS R ACK (FS CB → MAIN BODY)

Send enable signal from finisher to main body.

Revised 10/00

26

OTHER CONTROL FUNCTIONS

Power-on Operation

When the main body SW2 (sub power) is set to ON, the finisher
performs the following initialization sequence.

1. SD802 (shutter) goes ON and the shutter cover closes.

2. M808 (alignment (rear)) and M809 (alignment (front)) go
ON and the alignment plates (front/rear) perform home
position search.

3. M807 (conveyance drum drive) goes ON and the convey­ance drum performs home position search.

4. M806 (stapler movement) goes ON and the stapler unit
moves to the standby position.

5. SD802 goes OFF and the shutter cover opens.

6. M805 (paper exit) goes ON and the exit lever is driven for
one operation.

FS-105

7. Lower limit position detection for tray 2 and tray 3 is
carried out. If PS806 (tray lower limit detect) does not go
ON, M804 (tray up/down) goes ON, causing tray 2 and
tray 3 to move downward.

27

FS-105

ELECTRICAL PARTS LAYOUT DRAWING

17

24

35

2

9

3

10

16

13

14

30

36

4

27

1

26

5

37

20 23

33

7

34

6

8

11

12

28

32

15

25

Switches and Sensors

1 MS801 Inter lock MS
2 MS802 Up/down MS (UPPER)
3 MS803 Up/down MS (LOWER)
4 MS804 Stapler safety MS
5 PS801 Conveyance drum position detect sensor
6 PS802 Conveyance drum entrance detect sensor
7 PS803 Tray 1 paper exit detect sensor
8 PS804 Paper through detect sensor

9 PS805 Tray upper limit detect sensor
10 PS806 Tray lower limit detect sensor
11 PS807 Tray 2 full-stack detect sensor
12 PS809 Tray 3 full-stack detect sensor
13 PS812 Stapler no paper detect sensor
14 PS813 Paper exit motor HP sensor
15 PS814 Stapler unit HP sensor
16 PS815 Alignment motor (rear) sensor
17 PS816 Alignment motor HP (front) sensor
18 PS817 Stapler HP sensor (front)
19 PS818 No-staple sensor (front)
20 PS819 No-staple (F) (lead edge) sensor

19

22

29

18

21

21 PS820 Stapler HP sensor (rear)
22 PS821 No-staple sensor (rear)
23 PS822 No-staple (R) (lead edge) sensor

Loads

24 M801 Paper feed motor
25 M802 Stapler motor (front)
26 M803 Stapler motor (rear)
27 M804 Tray up/down motor
28 M805 Paper exit motor
29 M806 Stapler movement motor
30 M807 Conveyance drum drive motor
31 M808 Alignment motor (rear)
32 M809 Alignment motor (front)
33 M810 Tray 2 motor
34 M811 Tray 3 motor
35 SD801 Gate solenoid

36 SD802 Shutter solenoid

PCBs and Others

37 FSCB FS control board

28

31

CONNECTOR LAYOUT DRAWING

FS-105

736(W:3 PIN)

737(W:3 PIN)

730(W:2 PIN)

721(W:6 PIN)

726
(BK:2 PIN)

735(W:6 PIN)
747(W:12 PIN)
748(W:6 PIN)
749(W:6 PIN)
754(W:9 PIN)
755(W:16 PIN)

725(W:6 PIN)

724(W:6 PIN)

756(BK:8 PIN)

723(W:6 PIN)

727(W:6 PIN)

740(W:3 PIN)

757(BK:8 PIN)

755
(BK:19 PIN)

741(W:3 PIN)

749(BK:6 PIN)

748
(BK:7 PIN)

747
(BK:12 PIN)

753
(BK:8 PIN)

754(BK:9 PIN)

743(W:3 PIN)

401(GY:16 PIN)

722
(W:6 PIN)

729(W:6 PIN)

734(W:3 PIN)

750(BK:3 PIN)

728(W:6 PIN)

750(BK:3 PIN)

733(W:3 PIN)

729(W:6 PIN)

735(W:3 PIN)

739(W:3 PIN)

728(W:6 PIN)

750(BK:3 PIN)

744(W:3 PIN)

738(W:3 PIN)

721(W:6 PIN)

704(W:11 PIN)

703(W:10 PIN)
701(W:11 PIN)

702(W:6 PIN)

708(GY:26 PIN)

746(W:13 PIN)

742(W:3 PIN)

745(W:13 PIN)

706
(GY:16 PIN)

705
(GY:20 PIN)

707
(W:12 PIN)

709(GY:34 PIN)

29

FS-105

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30