Sharp All In One Printer Ar Cf2 User Manual

SERVICE MANUAL  
CODE: 00ZARCF2//A2E  
DIGITAL COPIER/PRINTER/  
MULTIFUNCTIONAL SYSTEM OPTION  
INSERTER  
MODEL AR-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  
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  
1
[3] EXTERNAL VIEWS AND INTERNAL STRUCTURES  
1. External components  
1
No.  
1
Description  
Paper feed tray  
Function  
2
3
4
Place blank or printed sheets to be  
inserted in this tray.  
2
Paper guide  
Adjust this guide according to the paper  
size.  
1
3
4
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.  
1
1
5
6
Paper guiding  
section (Lever)  
Front cover  
Open this cover to remove jammed paper  
from the finisher or saddle finisher.  
5
6
2. Sensors and switches  
12  
11  
1
13  
10  
8
9
6
7
3
2
4
5
Product name  
Manufacturer  
(Model)  
No.  
1
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  
2
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.  
3
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.  
4
5
6
7
HYK_SEN Reverse unit open/  
close sensor  
Photointerrupter  
Photointerrupter  
Photointerrupter  
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)  
TLP1241 (C5)  
TLP1241 (C5)  
TOSHIBA  
TOSHIBA  
TOSHIBA  
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.  
8
9
REG_SEN Registration sensor  
Photointerrupter  
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  
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  
Photointerrupter  
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  
SHARP  
SHARP  
Sub tray pullout  
detection sensor  
Sub tray retraction  
detection sensor  
GP1A73A  
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  
3
5
1
2
6
4
7
No.  
1
2
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  
MINEBEA  
MINEBEA  
3
4
5
6
7
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  
1
[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  
1
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  
1
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]  
1
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  
1
The correspondence between the punching/stapling mode settings and LEDs is shown below.  
Staple mode LEDs  
LED1 LED2 LED3 LED4  
Punch  
LED  
Stapling mode  
G
G
G
G
G
G
G
G
G
G
G
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  
Lit  
The LED of the selected mode is lit.  
The LED of the selected mode is lit.  
The LED of the selected mode is lit.  
The LED of the selected mode is lit.  
The LED of the selected mode is 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.  
The LED of the selected mode is lit.  
Lit  
Inserter problem  
Finisher problem  
Paper jam in inserter  
Paper jam in finisher  
Inserter alarm  
Lit  
Lit  
Lit  
Lit  
Blinking  
Blinking  
tray(Non-operable)  
The LED of the selected mode is lit.  
The LED of the selected mode is lit.  
The LED of the selected mode is blinking.  
The LED of the selected mode is lit.  
The LED of the selected mode is lit.  
The LED of the selected mode is lit.  
Finisher alarm  
1
1
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.  
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.  
1
Blinking  
Blinking  
Blinking  
Over loaded  
The LED of the selected mode is blinking.  
The LED of the selected mode is lit.  
1
1
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.  
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  
1
[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  
11  
Paper width detection level  
setting (adjustment) mode  
6
5
4
3
2
1
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  
A
B
4) Remove the pickup roller and paper feed roller.  
A: Pickup roller  
B: Paper feed roller  
A
B
AR-CF2 DISASSEMBLY AND ASSEMBLY 6 - 1  
: Jan. 9 2004  
1
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
A
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.  
1
AR-CF2 DISASSEMBLY AND ASSEMBLY 6 - 2  
: Jan. 9 2004  
1
5) Remove the finisher latch cover.  
5) Remove the cover bracket.  
A: Horizontal pass roller 2  
B: Timing roller  
B
A
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.  
1
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.  
1
2
3
4
5
6
7
Part name  
Pickup roller / Paper feed rollers  
Torque limiter  
Transport rollers  
Transport paper guides  
Gears and their related parts  
Belts  
(Note)  
(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  
2
7
7
6
5
6
3
1
3
7
4
7
4
7
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  
1
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  
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  
1
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  
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  
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  
SW  
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  
Main Unit  
Finisher  
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  
Memo  
LEAD-FREE SOLDER  
The PWBs of this model employs lead-free solder. The LFmarks indicated on the PWBs and the Service Manual mean Lead-Freesolder.  
The alphabet following the LF mark shows the kind of lead-free solder.  
Example:  
<Solder composition code of lead-free solder>  
Solder composition  
Sn-Ag-Cu  
Solder composition code  
a
Solder composition  
code (Refer to the  
table at the right.)  
Lead-Free  
Sn-Ag-Bi  
Sn-Ag-Bi-Cu  
b
z
i
Sn-Zn-Bi  
Sn-In-Ag-Bi  
Sn-Cu-Ni  
Sn-Ag-Sb  
5mm  
a
n
s
Bi-Sn-Ag-P  
Bi-Sn-Ag  
p
(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 manufacturers 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 dexplosion sil y a remplacement incorrect  
de la batterie. Remplacer uniquement avec une batterie du  
même type ou dun 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  
MÉMOIRE LITHIUM PRIMAIRE (DIOXYDE DE MANGANÈSE)  
QUI DOIT ÊTRE TRAITÉE CORRECTEMENT. ENLEVEZ LA  
PILE DU PRODUIT ET PRENEZ CONTACT AVEC VOTRE  
AGENCE ENVIRONNEMENTALE LOCALE POUR DES  
INFORMATIONS SUR LES MÉTHODES DE RECYCLAGE ET  
DE TRAITEMENT.  
All rights reserved.  
Printed in Japan.  
No part of this publication may be reproduced,  
stored in a retrieval system, or transmitted,  
in any form or by any means,  
electronic; mechanical; photocopying; recording or otherwise  
without prior written permission of the publisher.  
Trademark acknowledgements  
Microsoft® Windows® operating system is a trademark or copyright of Microsoft  
Corporation in the U.S.A. and other countries.  
Windows® 95, Windows® 98, Windows® Me, Windows NT® 4.0, Windows® 2000,  
and Windows® XP are trademarks or copyrights of Microsoft Corporation in the  
U.S.A. and other countries.  
IBM and PC/AT are trademarks of International Business Machines Corporation.  
Acrobat® Reader Copyright® 1987- 2002 Adobe Systems Incorporated. All rights  
reserved. Adobe, the Adobe logo, Acrobat, and the Acrobat logo are trademarks of  
Adobe Systems Incorporated.  
All other trademarks and copyrights are the property of their respective owners.  
SHARP CORPORATION  
Digital Document System Group  
Products Quality Assurance Department  
Yamatokoriyama, Nara 639-1186, Japan  
2004 January Printed in Japan  

Panasonic Cw C172kr User Manual
Samsung As12aa Ab Mc User Manual
Sanyo Ch3672r User Manual
Sanyo Uf 811 User Manual
Sears 20071240 User Manual
Sharp Af R85cx User Manual
Soleus Air Gb Wac 08ese C User Manual
Sony Pega Cc5 User Manual
Sunbeam Air Conditioner Y User Manual
Ultra Products Ult31922 User Manual