Sharp All In One Printer Ar Cf2 User Manual

SERVICE MANUAL

CODE: 00ZARCF2//A2E

DIGITAL COPIER/PRINTER/

MULTIFUNCTIONAL SYSTEM OPTION

INSERTER

^MODELAR-CF2

CONTENTS

[1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

[3] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . . . . . . . . 3-1

[4] OPERATIONAL DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

[5] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

[6] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

[7] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

[8] TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

[9] ELECTRICAL SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Parts marked with “ ” are important for maintaining the safety of the set. Be sure to replace these parts with

specified ones for maintaining the safety and performance of the set.

This document has been published to be used

for after sales service only.

The contents are subject to change without notice.

SHARP CORPORATION

: Jan. 9 2004

[3] EXTERNAL VIEWS AND INTERNAL STRUCTURES

1. External components

No.

Description

Paper feed tray

Function

Place blank or printed sheets to be

inserted in this tray.

Paper guide

Adjust this guide according to the paper

size.

Top cover

Operator panel

Open this cover to clear a paper jam.

Used to staple and punch during off-line.

(The same operation can be made with the

operation panel of the main unit.)

Unlock the paper guiding section to clear a

paper jam.

Paper guiding

section (Lever)

Front cover

Open this cover to remove jammed paper

from the finisher or saddle finisher.

2. Sensors and switches

Product name

Manufacturer

(Model)

No.

Symbol

Description

Type

Function and operation

Output

JCK_S W

JAM cover open/

close switch

Microswitch

Detects that the JAM cover is

opened or closed.

When the JAM cover is opened, DE2L-FAAA

TP37 turns HIGH.

HIROSE

CHERRY

PRECISION

H_SEN

Reverse sensor

Reflective sensor Detects that a sheet to be

inserted is transported to the

reverse sensor.

When a sheet is detected, TP1 SENSOR

SANYO

turns HIGH.

(SNS - SPI-337-01)

AR-CF2 EXTERNAL VIEWS AND INTERNAL STRUCTURES 3 - 1

Product name

(Model)

No.

Symbol

HI_SEN

Description

Type

Function and operation

Output

Manufacturer

TOSHIBA

Paper exit sensor

Photointerrupter

Detects that a sheet to be

inserted is transported to the

paper exit sensor.

When a sheet is detected, TP7 TLP1241 (C5)

turns LOW.

HYK_SEN Reverse unit open/

close sensor

Photointerrupter

Detects that the reverse unit is

opened or closed.

When the reverse unit is

opened, TP9 turns LOW.

When the stand cover is

opened, TP10 turns LOW.

TLP1241 (C5)

TOSHIBA

KC_SEN

Stand cover open/

close sensor

Detects that the stand cover is

opened or closed.

S_SEN

Set sensor

Detects that the inserter is joined When the inserter is joined to

to the main unit.

the main unit, TP16 turns HIGH.

EMP_SEN Empty sensor

Detects presence/absence of a

When a sheet is detected, TP4 TLP1241 (C5)

sheet to be inserted in the paper turns HIGH.

feed tray.

REG_SEN Registration sensor

Photointerrupter

Detects that a sheet to be

inserted is transported to the

registration sensor.

When a sheet is detected, TP5 TLP1241 (C5)

turns LOW.

TOSHIBA

ALPS

TIM_SEN

Timing sensor

Detects that a sheet to be

inserted is transported to the

timing sensor.

hen a sheet is detected, TP6

turns LOW.

TLP1241(C5)

RDC505003A

10 T_VR

Sheet width detection Potentiometer

potentiometer

Detects the width of a sheet to

be inserted in the tray.

The voltage of TP12 varies

between 0 V and 5 V depending

on the sheet width.

11 T_SEN

12 TH_SEN

13 TS_SEN

Tray sensor

Photointerrupter

Detects the length of a sheet to When a sheet is detected, TP13 GP1A73A

be inserted in the tray turns LOW.

Detects the pullout status of the When the pullout status is

SHARP

Sub tray pullout

detection sensor

Sub tray retraction

detection sensor

GP1A73A

sub tray.

detected, TP14 turns LOW.

When the retracted status is

detected, TP15 turns LOW.

Detects the retracted status of

the sub tray.

3. Motors, solenoid, and clutch

No.

Symbol

K_MOT

H_MOT

Y_MOT

Description

Paper feed motor

Reverse motor

Horizontal transport

motor

Function

Product name (Model) Manufacturer

Feeds a sheet to be inserted from the tray.

Reverses and ejects a sheet to be inserted.

Transports a sheet to be inserted on the horizontal transport 17PM-J507-P3VS

path.

23KM-K112-P5V

17PM-J507-P2VS

MINEBEA

F_SOL

R_CL

Flapper solenoid

Registration clutch

Switches over the flapper in the reversing operation.

Holds the registration rollers to maintain registration.

TDS-10SL-134

BJ-2.6-184

TDS

SHINKO

PBA-PANEL Operation panel PWB

PBA-CONT Main control PWB

–

AR-CF2 EXTERNAL VIEWS AND INTERNAL STRUCTURES 3 - 2

: Jan. 9 2004

[4] OPERATIONAL DESCRIPTION

1. Structure

3. Operational description

A. Cross-sectional view (Main body)

A. Through-mode operation of inserter (Online)

Pickup roller

Paper feed roller

Separation roller

Empty sensor

Registration roller

Registration sensor

Timing sensor

Vertical

transport roller

Horizontal

transport roller 1

Paper exit sensor

Reverse roller

Horizontal

transport roller 2

Reverse sensor

Step 01: The inserter receives an operation command sent by the

main unit.

Step 02: The transport motor rotates at a speed specified by the main

unit.

B. Drive system

[List of actuators]

Horizontal transport rollers 1 (inlet rollers) and horizontal

transport rollers 2 (paper exit rollers) rotate.

Actuator

Step 03: A sheet exits from the main unit.

Components to be driven

Description

Paper feed

motor

Type

Pulse motor

Pickup roller, feed rollers,

separation rollers, registration

rollers, vertical transport rollers

Inlet rollers (horizontal

transport rollers 1), paper exit

rollers (horizontal transport

rollers 2)

Transport motor Pulse motor

Reverse motor

Pulse motor

Reverse rollers

Reverse flapper Solenoid

solenoid

Switch-over flapper in reverse

section

Registration

clutch

Electromagnetic Registration roller lock clutch

clutch

2. Function outline

A. Operation mode

Step 04: The paper exit sensor detects the leading edge of the sheet.

(1) Normal (online mode)

• Through (horizontal transport)

• Straight mode (normal paper feeding from inserter)

• Reverse mode (reverse paper feeding from inserter)

(2) Offline mode

• Punching mode (inserter operation = normal paper feeding)

• Stapling mode (inserter operation = normal paper feeding)

B. Delivery speed

(1) Delivery speed

• Straight mode:

800 mm/sec

• Saddle mode (reverse): 420 mm/sec

Step 05: The paper exit sensor detects the trailing edge the sheet.

Step 06: The transport motor stops.

Horizontal transport rollers 1 and horizontal transport rollers

2 stop.

AR-CF2 OPERATIONAL DESCRIPTION 4 - 1

Step 09: The paper feed motor starts to rotate in the forward direction.

The registration rollers and vertical transport rollers rotate.

B. Normal paper feed operation of inserter (online/

offline)

Step 10: The timing sensor detects the leading edge of the sheet.

[Paper loading]

Step 11: The leading edge of the sheet passes between the vertical

transport rollers.

Step 12: When sheet transport needs to be suspended for adjusting

the space between sheets, the paper feed motor stops to

stop the sheet.

[Transport]

Step 01: A sheet is placed in the paper feed tray of the inserter.

Step 02: The START LED lights up in blue on the operator panel of

the inserter.

Step 03: An operation command is sent by the main unit, or a user

presses the START switch on the operator panel of the

inserter.

Step 04: The registration clutch is turned ON to lock the registration

rollers.

Step 13: When a predetermined waiting time period has passed, The

paper feed motor restarts.

[Separation]

(If the transport motor has stopped, it is started.)

Step 14: The paper exit sensor is turned ON, and detects the leading

edge of the sheet.

Step 15: The timing sensor is turned OFF, and the trailing edge of the

sheet is detected.

Step 16: When the trailing edge of the sheet leaves the vertical trans-

port rollers, the paper feed motor stops.

(When there is a next sheet to be inserted, the paper feed

motor reverses to take it in.

[Paper exit]

Step 05: The paper feed motor reverses to lower the pickup roller,

thereby taking in the sheet from the paper feed tray.

Step 06: The registration sensor detects the leading edge of the

sheet.

Step 07: The sheet makes contact with the registration rollers to form

a loop, thereby stopping the paper feed motor.

Step 08: The registration clutch is turned OFF.

[Leading-edge registration]

Step 17: The paper exit sensor is turned OFF, and the trailing edge of

the sheet is detected.

Step 18: When there is no next sheet to be inserted, the transport

motor stops.

Note: While the transport motor (horizontal transport rollers 1 and

horizontal transport rollers 2) rotates at a speed specified by

the main unit in the online mode, it rotates at either of the

speeds shown below in the offline mode.

∗ Transport speed in offline mode

Small-sized sheet (of which length detected in the tray is 216 mm or

less): 1000 mm/sec

Large-sized sheet (of which length detected in the tray is more than

216 mm): 800 mm/sec

AR-CF2 OPERATIONAL DESCRIPTION 4 - 2

: Jan. 9 2004

Step 09: The paper feed motor starts to rotate in the forward direction.

The registration rollers and vertical transport rollers rotate. If

the sheet is the first sheet, the flapper solenoid in the reverse

section is turned ON at this point of time.

C. Reverse paper feeding operation of inserter

[Paper loading]

Step 10: The timing sensor detects the leading edge of the sheet.

Step 11: The leading edge of the sheet passes between the vertical

transport rollers.

Step 12: When sheet transport needs to be suspended for adjusting

the space between sheets, the paper feed motor stops to

stop the sheet.

[Entering reverse section]

Step 01: A sheet is placed in the paper feed tray of the inserter.

Step 02: The START LED lights up in blue on the operator panel of

the inserter.

Step 03: The inserter reserves an operation command sent by the

main unit.

Step 04: The registration clutch is turned ON to lock the registration

rollers.

[Separation]

Step 13: When a predetermined waiting time period has passed, the

flapper solenoid is turned ON, the paper feed motor restarts,

and the reverse motor starts to rotate in the forward direction.

Step 14: The reverse sensor is turned ON, and detects the leading

edge of the sheet.

Step 15: When the trailing edge of the sheet leaves the timing sensor,

the paper feed motor starts to slow down to stop.

(After the paper feed motor has completely stopped, if there

is a next sheet to be inserted, the paper feed motor starts to

reverse to take it in.)

Step 05: The paper feed motor reverses to lower the pickup roller,

thereby taking in the sheet from the paper feed tray.

Step 06: The registration sensor detects the leading edge of the

sheet.

Step 07: The sheet makes contact with the registration rollers to form

a loop, thereby stopping the paper feed motor.

Step 08: The registration clutch is turned OFF.

[Leading-edge registration]

Step 16: The reverse sensor is turned OFF. The trailing edge of the

sheet is detected, and the flapper solenoid in the reverse

section is turned OFF. When the sheet travels a predeter-

mined distance, the reverse motor stops.

AR-CF2 OPERATIONAL DESCRIPTION 4 - 3

[Exiting from reverse section]

4. Offline mode setting

A. How to set punching mode

The figure below shows the operator panel.

Punch LED

Start LED

Punch switch

Start switch

Setting procedure:

Step 01: Place a sheet in the tray.

Step 02: Press the PUNCH switch on the operator panel.

Step 17: When the reverse motor has completely stopped, the reverse

motor starts to reverse, and the transport motor starts.

Step 03: The PUNCH LED lights up to indicate that setting has been

completed.

Step 18: The reverse sensor is turned ON, and detects the leading

edge of the sheet.

Step 04: Press the START switch to start operation.

Canceling procedure:

Step 01: Press the PUNCH switch on the operator panel.

Step 02: The PUNCH LED goes out to indicate that setting has been

canceled.

Note: If you cannot make or cancel setting by following the respective

procedures above, refer to "5. LED indication on operation

panel" shown later. When no LEDs are lit, check the setting

made by the main unit and the inserter status.

B. How to set stapling mode

Staple mode LED 2

Staple mode LED 1

Start switch

Step 19: The paper exit sensor is turned ON, and detects the leading

edge of the sheet.

Step 20: The reverse sensor is turned OFF. When the sheet travels a

predetermined distance after its trailing edge is detected, the

reverse motor stops.

Staple mode LED 3

Staple mode LED 4

Start switch

Staple mode switch

(If the next sheet waits at the leading-edge registration posi-

tion, the flapper solenoid in the reverse section is turned ON,

the paper feed motor starts to rotate in the forward direction,

and the reverse motor starts to rotate in the forward direc-

tion.)

Setting procedure:

Step 01: Place a sheet in the tray.

[Paper exit]

Step 02: Press the STAPLE MODE switch on the operator panel.

Step 03: Each time you press the switch, the STAPLE MODE LEDs

light up by turns in the following order: 1 → 2 → 3 → 4 → All

LEDs OFF → 1 → ... (When the saddle mode is cannot be

used, the order is: 1 → 2 → 3 → All LEDs OFF → 1 → ...)

Step 04: When the desired LED lights up, press the START switch to

start operation.

(Refer to the correspondence between the stapling modes and LEDs

shown later.)

Canceling procedure:

Step 01: Press the STAPLE MODE switch on the operator panel.

Step 02: All the STAPLE MODE LEDs go out to indicate that setting

has been canceled.

Note 1: If you cannot make or cancel setting by following the respec-

tive procedures above, refer to "5. LED indication on opera-

tion panel" shown later. When no LEDs are lit, check the

setting made by the main unit and the inserter status.

Step 21: The paper exit sensor is turned OFF, and the trailing edge of

the sheet is detected.

Step 22: If there is no next sheet to be inserted, the transport motor

stops.

Note 2: The punching mode and saddle mode cannot be used at the

same time.

AR-CF2 OPERATIONAL DESCRIPTION 4 - 4

: Jan. 9 2004

The correspondence between the punching/stapling mode settings and LEDs is shown below.

Staple mode LEDs

LED1 LED2 LED3 LED4

Punch

LED

Stapling mode

❍

1-point stapling at back

2-point stapling

1-point stapling at front

Saddle stapling (saddle stitching)

Punching

Punching + 1-point stapling at back

Punching + 2-point stapling

Punching + 1-point stapling at front

∗ G: means "Lit."

5. LED indication on operator panel

START LED

Status

Empty tray

Cause

Explanation

MODE LED

Red

Green

The selected MODE LED is lit.

Inserter problem

Finisher problem

Paper jam in inserter

Paper jam in finisher

Inserter alarm

Lit

The LED of the selected mode is lit.

Finisher alarm

Open inserter cover

Open finisher cover

Offline operation disabled

Inserter tray specified stapling

mode non-usable

The LED of the selected mode is lit.

Punching non-usable

Operation mode Stapling disabled

Punching disabled

Full tray (considered as a kind of

finisher alarms)

The LED of the selected mode is blinking.

The LED of the selected mode is lit.

Other

Paper-loaded tray

(Operable)

Paper-loaded

The LED of the selected mode is lit.

Lit

Inserter problem

Finisher problem

Paper jam in inserter

Paper jam in finisher

Inserter alarm

Lit

Blinking

tray(Non-operable)

The LED of the selected mode is lit.

The LED of the selected mode is blinking.

The LED of the selected mode is lit.

Finisher alarm

Paper-loaded tray Open inserter cover

(Non-operable)

Open finisher cover

Incompatible paper size

A non-usable paper size "A4

lateral," etc. is added when

the saddle mode is selected:

Extra size

Blinking

Offline operation disabled

Inserter tray specified stapling

mode non-usable

The selected mode is non-

usable.

The LED of the selected mode is blinking.

Punching non-usable

Operation mode Stapling disabled The selected mode is

The LED of the selected mode is blinking.

Punching disabled

Full tray (considered as a kind of

finisher alarms)

disabled.

The tray corresponding to

the selected mode is full.

Blinking

Over loaded

The LED of the selected mode is blinking.

The LED of the selected mode is lit.

Paper loaded in the finisher

intermediate process tray

Other

Main unit status "operation

disabled," finisher status

"non-operable," etc.

After a user presses the

START switch

The LED of the selected mode is lit.

Waiting for start of

offline operation

In offline operation

Blinking

Blinking The LED of the selected mode is lit.

Note: For LED status, each blank means "not lit."

AR-CF2 OPERATIONAL DESCRIPTION 4 - 5

6. Paper jam/error detection

A. List of Paper jams

Description

Detection timing

Explanation

Not arrived at registration At a time of separating a sheet

sensor

A paper jam is detected if the registration sensor is not turned ON, which means

absence of a sheet, even when the paper feed motor has been driven for a fixed

distance after the pickup roller starts to lower.

Not arrived at timing

sensor

At a time of leading-edge

registration

A paper jam is detected if the timing sensor is not turned ON, which means

absence of a sheet, even when the registration rollers (paper feed motor) have

been driven for a fixed distance after they are started.

Not arrived at paper exit

sensor

At a time of paper exit in through

mode

A paper jam is detected if the paper exit sensor is not turned ON by the leading

edge of a sheet, which means absence of a sheet, even when the transport motor

has been driven for a fixed distance after the main unit sends a paper exit

command.

At a time of paper exit in normal

paper feed mode

A paper jam is detected if the paper exit sensor is not turned ON, which means

absence of a sheet, even when the leading edge of a sheet has traveled a fixed

distance after it reaches the paper exit rollers (horizontal transport rollers 2).

A paper jam is detected if the paper exit sensor is not turned ON, which means

absence of a sheet, even when a sheet has been transported a fixed distance by

the transport motor after the reverse sensor is turned ON, which means presence

of a sheet.

At a time of paper exit in reverse

paper feed mode

Not arrived at reverse

sensor

At a time of entering reverse

section

A paper jam is detected if the reverse sensor is not turned ON, which means

absence of a sheet, even when the reverse motor has been driven for a fixed

distance after leading-edge registration.

At a time of exiting from reverse

section

A paper jam is detected if the reverse sensor is turned ON, which means absence

of a sheet, even when the reverse motor has been driven for a fixed distance

while a sheet is exiting from the reverse section.

Stay at registration

sensor

At a time of paper exit in normal

paper feed mode

At a time of entering reverse

section in reverse paper feed mode

At a time of paper exit in normal

paper feed mode

A paper jam is detected if the registration sensor is not turned OFF, which means

presence of a sheet, even when the paper feed motor has been driven for a

predetermined amount after a sheet reaches the starting position of leading-edge

registration.

A paper jam is detected if the timing sensor is not turned OFF, which means

presence of a sheet, even when the paper feed motor has been driven for a fixed

distance after the registration sensor is turned OFF, which means absence of a

sheet.

Stay at timing sensor

At a time of entering reverse

section in reverse paper feed mode

Stay at paper exit sensor At a time of paper exit in through

mode

A paper jam is detected if the paper exit sensor is not turned OFF, which means

presence of a sheet, even when the transport motor has been driven for a

predetermined amount after the paper exit sensor is turned ON, which means

presence of a sheet.

At a time of paper exit in normal

paper feed mode

At a time of paper exit in reverse

paper feed mode

A paper jam is detected if the paper exit sensor is not turned OFF, which means

presence of a sheet, even when the transport motor has been driven for a fixed

distance after the trailing edge of a sheet reaches the paper exit rollers (horizontal

transport rollers 2).

Stay at reverse sensor

At a time of entering reverse

section

A paper jam is detected if the reverse sensor is not turned OFF, which means

presence of a sheet, even when the reverse motor has been driven for a fixed

distance after the timing sensor is turned OFF, which means absence of a sheet.

A paper jam is detected if the reverse sensor is not turned OFF, which means

presence of a sheet, even when the reverse motor has been driven for a

predetermined amount after the reverse sensor is turned ON, which means

presence of a sheet.

At a time of exiting from reverse

section

(2) Reverse sensor adjustment error

Explanation:

B. Error detection

(1) EEPROM errors

Explanation:

1) When the DA output exceeds the upper limit

Even when the DA output is increased, the AD input value does

not fall within the appropriated range.

1) Timeout error

The EEPROM is being programmed even after a predetermined

time period (150 msec) has passed.

2) When the DA output is less than the lower limit

Even when the DA output is decreased, the AD input value does

not fall within the appropriated range.

2) Writing error

The written data does not match the read data even when writing

and reading are retried.

C. Alarm detection

3) Reading error

Explanation:

Checking pieces of data read from three sources results in mis-

match even when checking is retried.

An alarm is issued because the size of a sheet in the tray cannot be

correctly detected when both the sub tray pullout detection sensor and

the sub tray retraction detection sensor are turned OFF.

Indication:

Shown by a LED on the operator panel of the inserter or of the main

unit as an inserter alarm.

AR-CF2 OPERATIONAL DESCRIPTION 4 - 6

: Jan. 9 2004

[5] ADJUSTMENTS

1. Paper width detection level setting (adjustment)

LED 6

LED 5

LED 4

LED 3

LED 2

LED 1

PUNCH key

Operator panel

STAPLE key

START key

1) Enter the diag mode.

4) Press START key. (The selected diag mode is executed.)

Press and hold PUNCH key and START key, and turn on the

power of the main unit.

5) Check that LED2 is flashing, and set the paper guide to the max.

width position.

The LCD display of the main unit turns on and off, then turns on

again.

6) Press START key.

7) Check that LED3 is flashing, and set the paper guide to A4R width

position.

Check that LED1 is flashing, and release PUNCH key and START

key.

8) Press START key.

2) Press START key.

9) Check that LED4 is flashing, and set the paper guide to A5R width

position.

The display changes to the diag mode.

3) Press PUNCH key and STAPLE key to set to the paper width

detection level setting (adjustment) mode.

10) Press START key.

11) Check that LED5 is flashing, and set the paper guide to the min.

width position.

The diag mode is displayed by combination of LED lighting.

: Lighting

: OFF

12) Press START key.

When setting (adjustment) is completed normally, LED1 lights up.

When it is failed, LED1 flashes more rapidly.

Diag mode

No.

Diag mode

LED lighting

Paper width detection level

setting (adjustment) mode

AR-CF2 ADJUSTMENTS 5 - 1

B. Torque Limiter & Separation Roller

1) Open the top cover.

[6] DISASSEMBLY AND ASSEMBLY

2) Remove the maintenance cover.

1. Paper Feed Separation Unit

A. Pickup Roller & Paper Feed Roller

1) Open the top cover

3) Turn the separation roller unit to remove.

2) Remove the maintenance cover.

4) Remove the torque limiter and the separation roller.

A: Torque limiter

3) Turning the paper feed unit, remove the paper feed roller guide.

B: Separation roller

4) Remove the pickup roller and paper feed roller.

A: Pickup roller

B: Paper feed roller

AR-CF2 DISASSEMBLY AND ASSEMBLY 6 - 1

: Jan. 9 2004

A: Horizontal pass roller 1

B: Registration roller

2. Paper Feed Unit

A. Horizontal Pass Roller 1 and Registration Roller

1) Open the top cover.

2) Open the mount cover.

B. Horizontal Pass Roller 2 and Timing Roller

1) Open the top cover.

2) Remove the front cover and rear cover.

3) Disconnect the connector to remove the operating unit.

3) Remove the front cover.

4) Remove the rear cover.

4) Disconnect the connector, tray support and tray spring guide spin-

dle to remove the tray unit.

5) Remove the open/close cover fulcrum and two E-rings (F/R), and

remove the upper door section.

AR-CF2 DISASSEMBLY AND ASSEMBLY 6 - 2

: Jan. 9 2004

5) Remove the finisher latch cover.

5) Remove the cover bracket.

A: Horizontal pass roller 2

B: Timing roller

D. Paper Guide

C. Reverse Roller

1) Open the top cover.

2) Remove the front cover and rear cover.

3) Remove the finisher fixing bolt to remove the finisher positioning

stay unit.

4) Remove the reverse supports and E-rings to remove the reverse

unit.

AR-CF2 DISASSEMBLY AND ASSEMBLY 6 - 3

3. Drive Unit

4. Other Parts

A. Belts

A. Sensors

1) Open the top cover.

2) Remove the rear cover.

B. Gears

1) Open the top cover.

2) Remove the rear cover.

3) Disconnect the connector to remove the drive unit.

5. Note on assembly

A. Reverse flapper solenoid adjustment

1) Rotate the solenoid lever (LVR-FM-SOL) fully clockwise.

2) Adjust the position of the bracket (BKT-FM-SOL) of the solenoid so

that the solenoid's arm is completely retracted (that there is no

clearance in the rubber spacer, the stopper E-ring, and the main

unit of the solenoid). When adjusted, fix the bracket with screws.

LVR-FM-SOL

Stopper E-ring

Rubber spacer

Solenoid

main unit

Screw

BKT-FM-SOL

AR-CF2 DISASSEMBLY AND ASSEMBLY 6 - 4

[7] MAINTENANCE

1. Maintenance list

✕ Check ❍ Cleaning L Replace ∆ Adjust ✩ Lubricate ❏ Move position

(Clean, replace, and adjust, if necessary.)

AR-M550U/M550N

250K 500K 750K 1000K 1250K 1500K 1750K 2000K

(PM: 250K)

AR-M620U/M620N

(PM: 300K)

When

calling

Remarks

300K 600K 900K 1200K 1500K 1800K 2100K 2400K

Unit name

Paper separate

section

No.

Part name

Pickup roller / Paper feed rollers

Torque limiter

Transport rollers

Transport paper guides

Gears and their related parts

Belts

❍

✩

❍

✩

❍

✩

❍

✩

❍

✩

❍

✩

❍

✩

❍

✩

(Note)

Transport

section

Drive section

(Specified positions)

Others

Sensors

(Note) Reference for replacement: Replace referring to the counter

value at the paper entry of the inserter.

Paper feed roller and its related parts: 150K or one year

Torque limiter: 400K

AR-CF2 MAINTENANCE 7 - 1

Problem

Case1

Paper jam is displayed on the system display.

Cause Paper jam

[8] TROUBLESHOOTING

Check and Visual observation. Take out paper jams.

remedy

Problem

The inserter does not perform at all when the main

switch of the main unit is turned ON.

Cause Loose contact with the main unit

Checkand Check that each connector is firmly

Case2

Cause

Reverse sensor fault

Case1

Check and Measure a voltage of TP2 on the

remedy

controller PCB and check that 3 to 3.6 V

is observed when no paper is stacked,

and that 1.5 V or less is observed when

paper is stacked. Replace the sensor if

the measured voltage exceeds these

ranges.

remedy

Cause

connected.

Case2

Loose contact of the connector terminal of

the wire (interface harness) connecting

with the main unit

Checkand Check continuity in between the

remedy

connector terminals. Replace the

connection wire if no continuity is

measured

Case3

Case4

Case5

Case6

Case7

Cause

Paper exit sensor fault

Check and Measure a voltage of TP7 on the

remedy

controller PCB and check that 5 V is

observed when no paper is stacked, and

that 1 V or less is observed when paper is

stacked. Replace the sensor if the

measured voltage exceeds these ranges.

Empty sensor fault

Case3

Case4

Cause

JAM cover open/close switch fault

Checkand Check continuity between the switch

remedy

contacts., Replace the contacts if no

continuity is measured.

Cause

Controller PCB fault

Cause

Checkand Check that 24 V DC and 5 V DC are

Check and Measure a voltage of TP4 on the

remedy

supplied from the main unit after the

above cases 1 to 3 are confirmed. If 24 V

and 5 V are not present at CN1-2 pin and

IC5-32 pin on the PCB, replace the

controller PCB.

remedy

controller PCB and check that 1 V or less

is observed when no paper is stacked,

and that 5 V is observed when paper is

stacked. Replace the sensor if the

measured voltage exceeds these ranges.

Registration sensor fault

Cause

Check and Measure a voltage of TP5 on the

Problem

Case1

The paper feed motor does not operate.

The reverse motor does not operate.

The horizontal transport motor does not operate.

remedy

controller PCB and check that 5 V is

observed when no paper is stacked, and

that 1 V or less is observed when paper is

stacked. Replace the sensor if the

measured voltage exceeds these ranges.

Timing sensor fault

Cause

Loose contact of the motor connector

terminal

Check and Check continuity of the connector

Cause

remedy

Cause

contacts.(CN1 to 3)

Disconnection of the motor coil

Check and Measure a voltage of TP6 on the

Case2

Case3

remedy

controller PCB and check that a 5 V is

observed when no paper is stacked, and

that 1 V or less is observed when paper is

stacked. Replace the sensor if the

measured voltage exceeds these ranges.

Controller PCB fault

Check and Check continuity between the connector

remedy

terminals. Replace the connection wire if

no continuity is measured.

Cause

Controller PCB fault

Check and If the motor does not operate in the motor

Cause

remedy

single operation mode, replace the

controller PCB.

Check and If the problem is not solved with the

remedy

sensors whose level changes when each

is turned ON/OFF, replace the controller

PCB.

Problem

Case1

The paper is delivered without being reversed in

the reverse paper feed mode.

Cause

Connector terminal fault of the reverse

solenoid

Problem

Case1

The machine does not detect the paper.

Cause Tray sensor fault

Check and Measure a voltage of TP13 on the

Checkand Check continuity of the connector

remedy

Cause

contact.(CN4)

Disconnection of the solenoid coil

remedy

controller PCB and check thatV is

observed when no paper is stacked, and

that 1 V or less is observed when paper is

stacked. Replace the sensor if the

measured voltage exceeds these ranges.

Controller PCB fault

Case2

Case3

Checkand Inspect the coil for continuity. Replace the

remedy

Cause

coil if no continuity is measured.

Controller PCB fault

Case2

Cause

Checkand If the solenoid does not perform in the

Check and If the problem is not solved with a change

remedy

solenoid single operation mode, replace

the controller PCB.

remedy

in the sensor level after the above case 1

is confirmed, replace the controller PCB.

AR-CF2 TROUBLESHOOTING 8 - 1

: Jan. 9 2004

Problem

Case1

Tray alarm is displayed on the system display.

Cause Sub-tray pulling detection sensor fault

Checkand Measure a voltage on TP14 on the

Problem

Case1

The registration clutch does not perform.

Cause

Loose contact of the clutch connector

terminal

remedy

controller PCB and check that 5 V is

observed when the sub-tray is in place,

and that 1 V or less is observed when the

sub-tray is pulled out. Replace the sensor

if the measured voltage exceeds these

ranges.

Checkand Check continuity of the connector

remedy

Cause

contacts. (CN4)

Disconnection of the clutch coils

Case2

Case3

Checkand Inspect the coils for continuity. Replace

remedy

the coils if no continuity is measured.

Cause

Controller PCB fault

Case2

Case3

Cause

Sub-tray pulling detection sensor fault

Checkand If the clutch does not perform in the clutch

Checkand Measure a voltage of TP15 on the

remedy

single operation mode, replace the

controller PCB.

controller PCB and check that 5 V is

observed when the tray is in place, and

that 1 V or less is observed when the tray

is pulled. Replace the sensor if the

measured voltage exceeds these ranges.

Controller PCB fault

Cause

Checkand If the problem is not solved by a change in

remedy

the sensor level after the above cases 1

and 2 are confirmed, replace the

controller PCB.

Problem

Case1

Cover open is displayed on the system display.

Cause JAM cover open/close switch fault

Check and Check continuity between the switch

remedy

contacts., Replace the switch if no

conduction is measured.

Case2

Case3

Case4

Cause

Reverse unit open/close sensor fault

Check and Measure a voltage of TP9 on the

remedy

controller PCB and check that 1 V or less

is observed when the reverse unit is

open, and that 5 V is observed when the

reverse unit is closed. Replace the sensor

if the measured voltage exceeds these

ranges.

Cause

Rack cover open/close sensor fault

Check and Measure the voltage of TP10 on the

remedy

control PWB and check that it is 1V or

less when the base cover is opened and

5V when closed.

If the voltage is outside the above

specifications, replace the sensor with a

new one.

Cause

Controller PCB fault

Check and If the problem is not solved by a change

remedy

in the sensor level after the above cases

1 to 3 are confirmed, replace the

controller PCB.

Problem

Case1

Inserter unset is displayed on the system display.

Cause Set sensor fault

Checkand Measure a voltage of TP16 on the

remedy

controller PCB and check that 5 V is

observed when the inserter is set, and

that 1 V or less is observed when the

inserter is not set. Replace the sensor if

the measured voltage exceeds these

ranges.

Case2

Cause

Controller PCB fault

Checkand If the problem is not solved by a change

remedy

in the sensor level after the above case 1

is confirmed, replace the controller PCB.

AR-CF2 TROUBLESHOOTING 8 - 2

[9] ELECTRICAL SECTION

1. Actual Wiring Chart

Paper Feed Motor

Housing

Contact

Reverse Sensor

Reverse Motor

Housing

Contact

Paper Exit Sensor

Horizontal

Transport Motor

Reverse Unit Open/Closed

Sensor

Housing

Contact

Chassis Cover Open/Closed

Sensor

Set Sensor

Flapper Solenoid

Empty Sensor

Registration Clutch

Registration Sensor

Timing Sensor

Housing

Contact

Main Unit I/F

Tray

Tray Volume

Housing

Contact

Housing

Contact

Housing

Contact

Housing

Contact

Finisher I/F

Tray Sensor

Housing

Contact

Tray Drawn

Sensor

Housing

Contact

Housing

Contact

Tray Folded

Sensor

Housing

Contact

Housing

Contact

JAM Cover Open/Closed SW

Housing

Contact

Sleeve

FASTON Terminal

Operation Panel

BE: Blue

BN: Brown

BK: Black

RD: Red

YW: Yellow

WE: White

OE: Orange

GY: Gray

SB: Sky-blue

PK: Pink

VT: Violet

AR-CF2 ELECTRICAL SECTION 9 - 1

2. Circuit Description

A. Outline

This circuit controls paper feed, transport, reverse, and delivery.

This circuit consists of the following divisions: managing signals from

the sensors, the switches, and the main unit; driving the motors, the

solenoid, and the clutch; the CPU and associated circuits.

B. Block Diagram

Main Unit

Inserter

Finisher

RXD0

SGND

TXD0

RXD1

COMMU-

NICATION

CIRCUIT

SGN

TXD1

H_SEN

HI_SEN

HYK_SEN

ROM

KC_SEN

S_SEN

EEP ROM

SENSORS

INPUT

CIRCUIT

EMP_SEN

REG_SEN

F_SOL

R_CL

CPU

TIM_SEN

T_VR

T_SEN

TH_SEN

TS_SEN

K_MOT

DRIVER

P_ST_SW

P_MO_SW

P_PN_SW

P_PN_LED

P_MO_LED1

INPUT

CIRCUIT

H_MOT

Y_MOT

LED

DRIVE

CIRCUIT

P_MO_LED2

P_MO_LED3

P_MO_LED4

P_ST_LED1

P_ST_LED2

JAM COVER

OPEN/CLOSED

DETECTION

CIRCUIT

(24V

CONDUCTIVE

DETECTION)

INRUSH

CURRENT

LIMITING

CIRCUIT

DC+24V

JCK_SW

DC+24V

DC+5V

DC+24V

DC+5V

AR-CF2 ELECTRICAL SECTION 9 - 2

C. Circuit Detail

(1) Communication Circuit

<1> TxD signal

<2> RxD signal

Main Unit

Finisher

This circuit communicates with the main unit and the finisher.

TxD0 and TxD1 are data signals transmitted from the main unit and the finisher to the inserter. RxD0 and RxD1 are data signals transmitted from the

inserter to the main unit and the finisher. Logical 1 is represented by +5V, and logical 0 is represented by 0V.

(2) Sensor Input Circuits

<1> Reverse Sensor (H_SEN)

Reverse Sensor

H_SEN uses the reflective sensor integrated with an LED and a pho-

totransistor.

The signal input to the CPU follows the logic: "H" when a sheet is

detected, "L" when not detected.

The sensor detects a sheet between the sensor and the opposite

reflector interrupting the light path.

The analog signal is transmitted to CPU (IC-Pin105) through no com-

parator.

The CPU (IC6-Pin94, 95, 96) output is transmitted to the sensor to light

the LED through the D/A converter (IC13), the operational amplifier

(IC15.2), and the transistor (Q1). Meanwhile the signal is transmitted to

the CPU (IC6-Pin30) through the noise filters (R4, C2) and the compar-

ator (IC1.1).

R1 and R10 divide the +5V voltage which is applied to the comparator

as the reference voltage.

R13 is used to make the reference voltage have hysteresis.

AR-CF2 ELECTRICAL SECTION 9 - 3

Paper Exit Sensor

Reverse Unit Open/Closed Sensor

Chassis Cover Open/Closed Sensor

<2> Paper Exit Sensor (HI_SEN)

The signal is transmitted to the CPU (IC6-Pin108) through the noise fil-

ters (R21,C7).

The signal input to the CPU follows the logic: "L" when the reverse unit

is open, "H" when closed.

R37 is a current limiting resistor for the LED. R32 is a load resistor for

the sensor.

HI_SEN uses the photointerrupter integrated with an LED and a pho-

totransistor.

The sensor detects a sheet with the lever actuator interrupting the light

path of the photointerrupter.

The signal is transmitted to the CPU (IC6-Pin106) through the noise fil-

ters (R25,C9).

The signal input to the CPU follow the logic: "L" when a sheet is

detected, "H" when not detected.

<4> Chassis Cover Open/Closed Sensor (KC_SEN)

KC_SEN uses the photointerrupter integrated with an LED and a pho-

totransistor.

The sensor detects state of the chassis cover with the lever actuator

interrupting the light path.

R39 is a current limiting resistor for the LED. R34 is a load resistor for

the sensor.

<3> Reverse Unit Open/Closed Sensor (HYK_SEN)

The signal is transmitted to the CPU (IC6-Pin109) through the noise fil-

ters (R29,C11).

The signal input to the CPU follows the logic: "L" when the chassis

cover is open, "H" when closed.

R41 is a current limiting resistor for the LED. R36 is a load resistor for

the sensor.

HYK_SEN uses the photointerrupter integrated with an LED and a

phototransistor.

The sensor detects state of the reverse unit with the lever actuator

interrupting the light path of the photointerrupter.

Set Sensor

Empty Sensor

Registration Sensor

Timing Sensor

<5> Set Sensor (S_SEN)

<7> Registration Sensor (REG_SEN)

S_SEN uses the photointerrupter integrated with an LED and a pho-

totransistor.

REG_SEN uses the photointerrupter integrated with an LED and a

phototransistor.

The sensor detects the main unit with the lever actuator interrupting

the light path.

The sensor detects a sheet with the lever actuator interrupting the light

path.

The signal is transmitted to the CPU (IC6-Pin2) through the noise fil-

ters (R56,C16).

The signal is transmitted to the CPU (IC6-Pin32) through the noise fil-

ters (R14,C5).

The signal input to the CPU follows the logic: "H" when the inserter is

connected to the main unit, "L" when not connected.

R59 is a current limiting resistor for the LED. R58 is a load resistor for

the sensor.

The signal input to the CPU follows the logic: "L" when a sheet is

detected, "H" when not detected.

R17 is a current limiting resistor for the LED. R16 is a load resistor for

the sensor.

<6> Empty Sensor (EMP_SEN)

<8> Timing Sensor (TIM_SEN)

EMP_SEN uses the photointerrupter including the LED and the pho-

totransistor in one unit.

TIM_SEN uses the photointerrupter integrated with an LED and a pho-

totransistor.

The sensor detects a sheet with the lever actuator interrupting the light

path.

The sensor detects a sheet with the lever actuator interrupting the light

path.

The signal is transmitted to the CPU (IC6-Pin31) through the noise fil-

ters (R7,C4).

The signal is transmitted to the CPU (IC6-Pin33) through the noise fil-

ters (R19,C6).

The signal input to the CPU is the following logic: the signal is "H"

when a sheet is detected, "L" when not detected.

R12 is the current limiting resistor for the LED. R11 is the load resistor

for the sensor.

The signal input to the CPU follows the logic: "L" when a sheet is

detected, "H" when not detected.

R18 is a current limiting resistor for the LED. R31 is a load resistor for

the sensor.

AR-CF2 ELECTRICAL SECTION 9 - 4

Paper Width Detection Potentiometer

Tray Sensor

Sub Tray Drawn Detection Sensor

Sub Tray Folded Detection Sensor

<9> Paper Width Detection Potentiometer (T_VR)

<11> Sub Tray Drawn Detection Sensor (TH_SEN)

T_VR is a potentiometer.

TH_SEN uses the photointerrupter integrated with an LED and the

phototransistor in one unit.

The paper width is detected using the output voltage, which may vary

depending on the potentiometer's knob position.

The sensor detects state of the sub tray with the lever actuator inter-

rupting the light path.

The signal is transmitted to the CPU (IC6-Pin112) through the noise fil-

ters (R48,C12).

The signal is transmitted to the CPU (IC6-Pin127) through the noise fil-

ters (R44,C14).

<10> Tray Sensor (T_SEN)

The signal input to the CPU follows the logic: "L" when the sub tray is

drawn.

T_SEN uses the photointerrupter integrated with an LED and a pho-

totransistor.

R51 is a load resistor for the sensor.

The sensor detects a sheet with the lever actuator interrupting the light

path.

<12> Sub Tray Folded Detection Sensor (TS_SEN)

The signal is transmitted to the CPU (IC6-Pin126) through the noise fil-

ters (R46,C15).

TS_SEN uses the photointerrupter integrated with an LED and a pho-

totransistor.

The signal input to the CPU follows the logic: "L" when a sheet is

detected, "H" when not detected.

The sensor detects state of the sub tray with the lever actuator inter-

rupting the light path.

R52 is a load resistor for the sensor.

The signal is transmitted to the CPU (IC6-Pin128) through the noise fil-

ters (R42,C13).

The signal input to the CPU follows the logic: "L" when the sub tray is

folded.

R50 is a load resistor for the sensor.

<13> JAM Cover Open/Closed Switch (JCK_SW)

JCK_SW is the JAM cover open/closed detection switch using the

microswitch.

+24V is supplied to the switch. The contacts open when the JAM cover

is open.

When the switch turns on, +24V voltage is applied to the cathode of

ZD2, the base current flows to Q12, and Q12 turns on to transmit the

signal to the CPU (IC6-Pin111).

The signal is also used as the +24V conduction signal simultaneously.

The signal input to the CPU follows the logic: "H" when the JAM cover

is open, "L" when closed.

The +24V conduction signal follows the logic: "L" when the +24V volt-

age is conducted.

AR-CF2 ELECTRICAL SECTION 9 - 5

(3) Motor Drive Circuits

<1> Paper Feed Motor Drive Circuit (K_MOT)

Paper Feed MOT

Not Mounted

This circuit rotates/stops K_MOT and controls its rotational direction

and the motor current. The circuit consists of the CPU (IC6), the D/A

converter (IC13), the constant-current chopper driver IC (IC9), and

other elements.

The analog signal from the D/A converter (IC13-Pin11) is divided into

the constant voltage by R53 and R54. The divided voltage is applied to

IC9-Pin9,11 to set the motor current.

The signals of the stepping-motor drive excitation pattern from the

CPU (IC6-Pin37,38,70,71) control the motor rotation speed and rota-

tional direction.

<2> Reverse Motor Drive Circuit (H_MOT)

Reverse MOT

Not Mounted

This circuit rotates/stops H_MOTand controls its rotational direction

and the motor current. The circuit consists of the CPU (IC6), the D/A

converter (IC13), the constant-current chopper driver IC (IC7), and

other elements.

The signals of the stepping-motor drive excitation pattern from the

CPU (IC6-Pin118, 120, 121, 122) control the motor rotation speed and

rotational direction.

The analog signal from the D/A converter (IC13-Pin5) is divided into

the constant voltage by R74 and R75. The divided voltage is applied to

IC7-Pin3,14 to set the motor current.

<3> Transport Motor Drive Circuit (Y_MOT)

Horizontal

Transport MOT

Not

Mounted

This circuit rotates/stops Y_MOT and controls its rotational direction

and the motor current. The circuit consists of the CPU (IC6), the D/A

converter (IC13), the constant-current chopper driver IC (IC8), and

other elements.

The analog signal from the D/A converter (IC13-Pin6) is divided into

the constant voltage by R76 and R77. The divided voltage is applied to

IC8-Pin3,14 to set the motor current.

The signals of the stepping-motor drive excitation pattern from the

CPU (IC6-Pin97, 98, 101, 102) control the motor rotation speed and

rotational direction.

AR-CF2 ELECTRICAL SECTION 9 - 6

(4) Flapper Solenoid and Registration Clutch Drive Circuit (F_SOL and R_CL)

Flapper SOL

Registration CL

This circuit controls the flapper solenoid operation and the registration

clutch engagement.

The flapper solenoid drive signal is the PWM signal. At the beginning

of the solenoid activation, the signal is adjusted to set the solenoid at

100% duty cycle. After the plunger of the solenoid is pulled in, the sig-

nal is adjusted to set the solenoid at 70% duty cycle in order to reduce

the temperature rise with the plunger hold.

When the signal F_SOL is "H", Q2 turns on to activate the solenoid.

Similarly, when the signal R_CL is "H", Q3 turns on to engage the

clutch.

(5) Reset Circuit

(6) EEPROM Circuit

Not Mounted

The circuit transmits a reset signal to the CPU when the power is

turned on or a power brownout is detected.

This circuit consists of the data storage EEPROM and the peripheral

circuits.

The circuit includes a watchdog timer intended to the CPU system

operation diagnosis.

IC4 is a storage memory for the adjustment settings of the reverse sen-

sor (reflective sensor) and the paper width detection potentiometer,

and passes the data to the CPU through the four-wire serial interface.

After the power is turned on, normally IC3-Pin8 (*RES) is "H". How-

ever, when the +5V voltage falls to 4.2V or less because of the power

turned off or any trouble, IC3-Pin8 turns "L" to reset the CPU.

Once data is stored, the data is retained and not cleared even if the

power is turned off.

The clock signal from the CPU is transmitted to IC3-Pin3 (CK) at a reg-

ular interval to clear the watchdog timer embedded in IC3. However, if

the clock signal from the CPU disappears because of a system trouble,

IC3-Pin8 turns "L" to reset the CPU and stop the system operation.

IC4-Pin1 (CS) is the chip selection terminal, and stays "H" during pass-

ing data.

IC4-Pin2 (SK) is the serial clock terminal. The serial data is transmitted

synchronizing with the clock signal input to the terminal

IC4-Pin3 (DI) is the serial data input terminal. IC4-Pin4 (DO) is the

serial data output terminal.

AR-CF2 ELECTRICAL SECTION 9 - 7

(7) Inrush Current Limiting Circuit

JAM cover open/closed

This circuit limits an inrush current flowing into the regeneration capac-

itor included in the motor drive system to a certain value or less. The

circuit consists of the PTC thermistor (PTH2) that limits a current and

the FET (Q11) that allows a steady current flowing.

After the regeneration capacitor is fully charged, and the cathode volt-

age of ZD1 reaches over the zener voltage according to the time con-

stant of R55 and C46, Q11 is turned on because the base current from

ZD1 to Q10 turns Q10 on. And then the current flows to Q11 instead of

PTH2 to release the current limitation. The circuit consisting of PTH1

and D3 is intended to eliminate the electric charge accumulated in C46

immediately to limit an inrush current generated by momentary open-

ing and shutting of the cover.

When the JAM cover open/closed detection switch is closed, the cath-

ode voltage of ZD1 starts rising to the zener voltage according to the

time constant of R55 and C46. During the rise of the cathode voltage,

Q11 is off because no base current to Q10 keeps Q10 off, and then a

current flows to PTH2 to charge the regeneration capacitor.

(8) Operator Panel Drive Circuit

Operator Panel

This circuit includes the input circuits of the switches on the operator

panel and the drive circuits of the LEDs.

The circuits connected to CN15-Pin1, 2, 3 are the input circuits of the

switches on the operator panel. The input signal from the switch goes

"L" when the switch is on, "H" when off.

The circuits connected to CN15-Pin4,6-11 are the drive circuits of the

LEDs on the operator panel. The LED lights when the signal is "H",

does not light when "L".

AR-CF2 ELECTRICAL SECTION 9 - 8

(9) Operator Panel Circuit

This is the circuit of the operator panel board.

The operator panel drive board turns each of the LED1-6 on or off, and

detects weather each of the PSW1-3 is on or off.

AR-CF2 ELECTRICAL SECTION 9 - 9

Memo

LEAD-FREE SOLDER

The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder.

The alphabet following the LF mark shows the kind of lead-free solder.

Example:

Solder composition

Sn-Ag-Cu

Solder composition code

Solder composition

code (Refer to the

table at the right.)

Lead-Free

Sn-Ag-Bi

Sn-Ag-Bi-Cu

Sn-Zn-Bi

Sn-In-Ag-Bi

Sn-Cu-Ni

Sn-Ag-Sb

5mm

Bi-Sn-Ag-P

Bi-Sn-Ag

(1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD

When repairing a lead-free solder PWB, use lead-free solder thread.

Never use conventional lead solder thread, which may cause a breakdown or an accident.

Since the melting point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the exclusive-use

soldering iron is recommendable.

(2) NOTE FOR SOLDERING WORK

Since the melting point of lead-free solder is about 220°C, which is about 40°C higher than that of conventional lead solder, and its soldering capacity is

inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land separation or may exceed

the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when completion of soldering is

confirmed.

Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.

If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron tip after

completion of soldering work.

If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer.

CAUTION FOR BATTERY REPLACEMENT

(Danish)

ADVARSEL !

Lithiumbatteri – Eksplosionsfare ved fejlagtig håndtering.

Udskiftning må kun ske med batteri

af samme fabrikat og type.

Levér det brugte batteri tilbage til leverandoren.

(English)

Caution !

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type

recommended by the manufacturer.

Dispose of used batteries according to manufacturer’s instructions.

(Finnish)

VAROITUS

Paristo voi räjähtää, jos se on virheellisesti asennettu.

Vaihda paristo ainoastaan laitevalmistajan suosittelemaan

tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden

mukaisesti.

(French)

ATTENTION

Il y a danger d’explosion s’ il y a remplacement incorrect

de la batterie. Remplacer uniquement avec une batterie du

même type ou d’un type équivalent recommandé par

le constructeur.

Mettre au rebut les batteries usagées conformément aux

instructions du fabricant.

(Swedish)

VARNING

Explosionsfara vid felaktigt batteribyte.

Använd samma batterityp eller en ekvivalent

typ som rekommenderas av apparattillverkaren.

Kassera använt batteri enligt fabrikantens

instruktion.

(German)

Achtung

Explosionsgefahr bei Verwendung inkorrekter Batterien.

Als Ersatzbatterien dürfen nur Batterien vom gleichen Typ oder

vom Hersteller empfohlene Batterien verwendet werden.

Entsorgung der gebrauchten Batterien nur nach den vom

Hersteller angegebenen Anweisungen.

CAUTION FOR BATTERY DISPOSAL

(For USA, CANADA)

"BATTERY DISPOSAL"

THIS PRODUCT CONTAINS A LITHIUM PRIMARY

(MANGANESS DIOXIDE) MEMORY BACK-UP BATTERY

THAT MUST BE DISPOSED OF PROPERLY. REMOVE THE

BATTERY FROM THE PRODUCT AND CONTACT YOUR

LOCAL ENVIRONMENTAL AGENCIES FOR INFORMATION

ON RECYCLING AND DISPOSAL OPTIONS.

"TRAITEMENT DES PILES USAGÉES"

CE PRODUIT CONTIENT UNE PILE DE SAUVEGARDE DE

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