Panasonic FA-A355 User manual

FA-A355
Contents/Index
WARNING
I. Introduction
1.1 Specifications.......................................................................................... 1-1
1.2 Features.................................................................................................. 1-1
1.3 Exterior ................................................................................................... 1-2
1.4 Interior..................................................................................................... 1-2
II. Operation
2.1 Normal feeding (copy) ............................................................................ 2-1
III. Maintenance
3.1 Maintenance chart .................................................................................. 3-1
3.2 Cleaning.................................................................................................. 3-1
3.3 Disassembly/Assembly........................................................................... 3-2
IV. Electrical
4.1 Signal information by connector ............................................................. 4-1
4.2 Explanation of circuit............................................................................... 4-6
V. Troubleshooting
5.1 Error detection by self-diagnostics.......................................................... 5-1
5.2 Service mode.......................................................................................... 5-3
VI. Installation
6.1 Installation requirements......................................................................... 6-1
6.2 Unpacking............................................................................................... 6-2
6.3 Installation procedure ............................................................................. 6-3
6.4 Adjustment.............................................................................................. 6-6
ADF Driver PCB
Electrical Maintenance Operation Introduction
Installation
Troubleshooting
FA-A355 Back to Model List

WARNING
This service information is designed for experienced repair technicians only and
is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of
potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced
professional technicians. Any attempt to service or repair the product or products
dealt with in this service information by anyone else could result serious injury or
death.
(For USA)
This manual was developed and is supplied to authorized servicing dealers by
Panasonic Communications & Systems Co. for the sole purpose of providing
information necessary for the equipment's proper support. It is intended that this
information be confidential and may not be reproduced without prior written consent
from Panasonic Communications & Systems Co. Panasonic Communications &
Systems Co. reserves the right to change any information enclosed herein without
prior notification.
© February, 1999
This manual was developed and is supplied to authorized servicing dealers by
Panasonic Co. for the sole purpose of providing information necessary for the
equipment's proper support. It is intended that this information be confidential
and may not be reproduced without prior written consent from Panasonic Co.
Panasonic Co. reserves the right to change any information enclosed herein without
prior notification.

1-1
Introduction
1. For use with: FP-D250/D350 Series
2. Original paper capacity: 50 sheets (20 lb/80 g/m2)
30 sheets (20 lb/80 g/m2) Ledger, Legal/A3,B4
3. Original size: Ledger to Invoice/A3 to A5
4. Original paper weight: 14 to 28 lb/50 to 110 g/m2
5. Original feed speed: 35 sheets/min.
6. Power source: DC +24V (Supplied from copier)
7. Dimensions (W x H x D): 24.5" x 21.5" x 4.6"/622 x 546 x 117 mm
(without tray)
8. Weight: 24.2 lb/11 kg
9. Ambient conditions: Temperature 50˚F to 86˚F/10˚C to 30˚C
Relative humidity 30 to 80%
1.2 Features
• Original size feeding system
• Originals of different size but with the same width (Ledger/Letter, A3/A4) can be
combined for feeding.
• Original size detection system
• By placing the originals onto the tray, original size can be detected automatically.
• Realization of space saving
• Power unit is installed in the copier, so the document feeder is physically smaller.
• Capable of feeding originals up to Ledger/A3 size.
Section I Introduction
1.1 Specifications

1-2
1.3 Exterior
1.4 Interior
Original guides
Original exit cover Original exit tray
ADF driver PCB
Door open/close sensor
Original pick up solenoid Transport motor
ADF open/close sensor
Original feed motor
Paper exit deceleration
clutch
Original exit sensor 2
Original exit
sensor 1
Paper exit
switching solenoid Registration
sensor Original detecting
sensor
Original size detecting sensor

2-1
Operation
1
Section II Operation
2.1 Normal feeding (copy)
• Original feeding begins with the last page.
(1) When the start button is pressed, the paper feed motor and pick-up solenoid
are energized. The pick-up roller moves down towards the stack of originals
and transports the original on the top of the stack to the paper feed roller. The
entrance gate is opened and the paper feed roller rotates to feed the original to
the registration roller. Double feed prevention is provided by the lower paper
feed/double feed prevention roller.
The paper feed motor stops a predetermined time after the lead edge of the
original passes by the registration sensor. The original is held in place by the
resistration roller.
(2) The transport motor is energized and the registration roller begins to rotate.
The original is then transported to the original holding roller.
The original is scanned as it passes between the original holding roller and the
platen glass.
The paper exit switching solenoid is then energized and the paper exit-switching
claw is switched to the upper paper discharge position.
After the trail edge of the original passes by the original holding roller, the
transport motor stops.
Normal feeding (copy)
Fed from the last page of originals
3 (STOP) 45
Pick-up roller
Paper feed roller
Double feed prevention roller
Paper exit roller C
Paper exit roller F
Transport roller Optical
Registration roller
2
2
345
1

2-2
(3) The paper feed motor and pick-up solenoid are energized again. The pick-up
roller moves down towards the stack of originals and the next original is fed.
The paper exit rollers rotate to discharge the original. During paper discharge
the deceleration clutch is released to ensure that the paper is neatly stacked in
the exit tray.
Paper exit roller C
Paper exit roller F
Transport roller Paper feed roller
Double feed prevention roller
Registration roller
Pick-up roller
Optical
234
5

3-1
Maintenance
Cleaning Replacement
Section III Maintenance
3.1 Maintenance chart
• In addition to the following maintenance table, the platen mat must be cleaned as
part of regular service calls.
• The timing of regular maintenance is determined on the basis of the number of
ADF original feed count. (F7-06)
Original feed roller/DFP roller
Original pick-up roller
Original detecting sensor
Registration sensor
Original exit sensor
Original support roller
Transport roller
Registration roller (upper)
Registration roller (lower)
Original exit roller (left)
(right)
Torque limiter spring
FFPMA0604
FFPMA0605
GP1A73A
FFPMA0609
FFPMA0607
FFPMA0606
FFPMA0608
FFPMA0602
FFPMA0603
FFPLR0287
Brush, air blower,
isopropyl alcohol (IPA)
Note: •Rollers should be
cleanedwithwater
and cloth.
•Use of IPA
(Isopropylalcohol)
should be used
sparingly.
Part name Part number Remarks
3.2 Cleaning
Clean each rollers.
Maintenance interval
120,000
120,000
–––
–––
–––
–––
–––
–––
(Lubrication)
Exit roller Original feed roller
Pick-up roller
Registration roller
Transport roller
Original support roller
60,000
60,000
120,000
60,000
60,000
60,000
60,000
60,000
120,000
DFP roller (lower)

3-2
3.3 Disassembly/Assembly
Location Procedure Check
1
2
(1) Remove the original catch tray 1.
(2) Remove the original catch tray 2.
(FA-F350)
(1) Remove the left side cover (3
screws).
3(1) Open up the paper feed section.
(2) Remove the stopper (1 shoulder
screw).
Note: Removing the stopper allows
paper feed section to open
completely allowing easy
access to the feed rollers.
4Removal of upper pick up roller
and paper feed/DFP roller
(1) Remove the original feed cover
(upper) (3 screws).
(2) Remove touch rings (x2).
(3) Remove the link.
(4) Slide the upper pick up roller and
paper feed roller off of their shafts.
(5) Replace rollers and reassemble
in reverse order.
2
1
1
23
1
1
2

3-3
Maintenance
Location Procedure Check
5Removal of lower paper feed/DFP
roller
(1) Remove the original feed cover
(lower) (4 screws).
(2) Remove touch ring of the DFP
roller shaft.
(3) Slide the DFP roller off the shaft.
2
1

4-1
Electrical
Connection
Copier connection cable
Copier connection cable
Copier connection cable
(1) P.C.B. connector/Signals
(CN951)
Pin
No.
1
2
3
Input/Output
Symbol
ADFVP
PGND
PGND
Signal
DC +24V power supply
Power ground
Power ground
24V
0
0V
0V
Connection
Copier connection cable
Copier connection cable
Copier connection cable
Copier connection cable
Copier connection cable
Copier connection cable
Copier connection cable
Copier connection cable
Copier connection cable
(CN952)
Pin
No.
1
2
3
4
5
6
7
8
9
Input/Output
Symbol
ADFIDO
ADFIENB
ADFILD
ADFICLK
ADMCLK
ADFIIDI
ADFRRSN
VL
GND
Signal
Output data signal
Data transmission
enabling signal
Data transmission latch
signal
Data transmission clock
signal
Transport motor drive
signal
Data reception input
signal
Registration sensor signal
DC +5V power supply
signal ground
Pulse
Pulse
OFF ON
5V
0
5V
0
0V
NO YES
5V 0
5V
0
Pulse
Pulse
Pulse
Section IV Electrical
4.1 Signal information by connector

4-2
Connection
Paper exit deceleration
clutch
Paper exit deceleration
clutch
Pick-up solenoid
Pick-up solenoid
Paper exit switching
solenoid
Paper exit switching
solenoid
–––
–––
(CN953)
Pin
No.
1
2
3
4
5
6
7
8
Input/Output
Symbol
ADFPV
EXCLCT
ADFPV
PUSLCT
ADFPV
EXSLCT
–––
–––
Signal
DC +24V power supply
Paper exit deceleration
clutch drive signal
DC +24V power supply
Pick-up solenoid drive
signal
DC +24V power supply
Paper exit switching
solenoid drive signal
–––
–––
ON 24V
0
24V
0
24V
0
ON 24V
0
24V
0
ON 24V
0
Connection
Paper feed motor
Paper feed motor
Paper feed motor
Paper feed motor
Paper feed motor
Paper feed motor
(CN955)
Pin
No.
1
2
3
4
5
6
Input/Output
Symbol
FPMA
ADFPV
FPMAB
PFMB
ADFPV
PFMBB
Signal
Paper feed motor drive
signal A
DC +24V power supply
Paper feed motor drive
signalA
Paper feed motor drive
signal B
DC +24V power supply
Paper feed motor drive
signal B
24V
0
Pulse
Pulse
24V
0
Pulse
Pulse
–––
–––

4-3
Electrical
Connection
Transport motor
Transport motor
Transport motor
Transport motor
Transport motor
Transport motor
(CN956)
Pin
No.
1
2
3
4
5
6
Input/Output
Symbol
MMA
ADFPV
MMAB
MMB
ADFPV
MMBB
Signal
Transport motor drive
signal A
DC +24V power supply
Transport motor drive
signal A
Transport motor drive
signal B
DC +24V power supply
Transport motor drive
signal B
Connection
Paper sensor
Paper sensor
Paper sensor
Cover open/
close sensor
Cover open/
close sensor
Cover open/
close sensor
Registration sensor
Registration sensor
Registration sensor
(CN957)
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
Input/Output
Symbol
GND
ADFDESN
VL
GND
COPSN
VL
GND
ADFRRSN
VL
Signal
Signal ground
Paper detecting clutch
drive signal
DC +5V power supply
Signal ground
Cover open/close
detecting signal
DC +5V power supply
Signal ground
Registration sensor
detecting signal
DC +5V power supply
24V
0
Pulse
Pulse
24V
0
Pulse
Pulse
0V
0V
5V
0
YES NO 5V
0
0V
5V
0
YES NO 5V
0
5V
0
Open Close 5V
0

4-4
Connection
Paper exit FU sensor
Paper exit FU sensor
Paper exit FU sensor
Paper exit FD sensor
Paper exit FD sensor
Paper exit FD sensor
(CN958)
Pin
No.
1
2
3
4
5
6
7
Input/Output
Symbol
GND
FUEXSH
VL
GND
FDEXSN
VL
Signal
Signal ground
Paper exit face-up
detecting signal
DC +5V power supply
Signal ground
Paper exit face-down
detecting signal
DC +5V power supply
Connection
Original size 1 sensor
Original size 1 sensor
Original size 1 sensor
Original size 2 sensor
Original size 2 sensor
Original size 2 sensor
Original size 3 sensor
Original size 3 sensor
Original size 3 sensor
(CN959)
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
Input/Output
Symbol
GND
ADFOSSN1
VL
GND
ADFOSSN2
VL
GND
ADFOSSN3
VL
Signal
Signal ground
Original size 1
detecting signal
DC +5V power supply
Signal ground
Original size 2
detecting signal
DC +5V power supply
Signal ground
Original size 3
detecting signal
DC +5V power supply
0V
0V
5V
0
YES NO
5V
0
5V
0
YES NO
5V
0
0V
0V
5V
0
5V
0
0V
5V
0
5V
0
5V
0
5V
0

4-5
Electrical
Connection
Original size 4 sensor
Original size 4 sensor
Original size 4 sensor
Original size 5 sensor
Original size 5 sensor
Original size 5 sensor
ADF open/close sensor
ADF open/close sensor
ADF open/close sensor
(CN960)
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
Input/Output
Symbol
GND
ADFOSSN4
VL
GND
ADFOSSN5
VL
GND
ADFOPSN
VL
Signal
Signal ground
Original size 4
detecting signal
DC +5V power supply
Signal ground
Original size 5
detecting signal
DC +5V power supply
Signal ground
ADF open/close
detecting signal
DC +5V power supply
0V
0V
5V
0
5V
0
0V
5V
0
5V
0
5V
0
Open Close
5V
0

4-6
4.2 Explanation of circuit
ADF drive circuit
Copier
CN952
Power supply
CN951
1
2
3
4
5
6
7
8
9
ADF IDO
ADF I ENB
ADF I LD
ADF I CLK
ADMCLK
ADF IDI
ADF RRSN
VL
GND
1
2
3
ADF VP
PGND
PGND
Schmidt
inverter
74LS14
ENB
Serial signal
REF
Switching
EXCL
PUSOL
EXSOL
STSOL
RESET
Identification
signal
16 bit
M66311
Driver IC
TD62308BP
Constant
Current STM
Driver IC
SLA 7204
Constant
current STM
Driver IC
STK672050
8 bit
74HC165 8
3
3
3
3
3
3
3
3
3
3
3
3
4
4
2
2
2
6
6
4
1
2
3
4
5
6
7
8
ADFPV
EXCLCT
ADFPV
PUSLCT
ADFPV
CN953 EXCL
PUSOL
Paper exit decelerationCL
Pick-up SOL
Paper exit switching SOL
(FA-A350)
EXSOL
PFM
CN955
CN956
CN959
CN960
Original size 1
Original size 2
Original size 3
Original size 4
Original size 5
ADF open /close
1
2
3
4
5
6
PFMA
ADFPV
PFMAB
PFMB
ADFPV
PFMBB
1
2
3
4
5
6
MMA
ADFPV
MMAB
MMB
ADFPV
MMBB
1
2
3
5
6
7
9
10
11
GND
ADFOSSN1
VL
GND
ADFOSSN2
VL
GND
ADFOSSN3
VL
CN957
CN958
1
2
3
5
6
7
9
10
11
GND
Paper detecting
Paper exit1
Paper exit2
Cover open/close
Registration
ADFOESN
VL
GND
COPSN
VL
GND
ADFRRSN
VL
1
2
3
5
6
7
GND
FUEXSN
VL
GND
FDEXSN
VL
1
2
3
5
6
7
9
10
11
GND
ADFOSSN4
VL
GND
ADFOSSN5
VL
GND
ADFOPSN
VL
Paper exit motor
Square 56HB type
MM
Transport motor
Square 56HB type

5-1
Troubleshooting
Section V Troubleshooting
5. 1 Error detection by self-diagnostics
The self-diagnostics function detects troubles in important areas of the ADF. When
any trouble occurs, the machine is stopped. The error indication appears in the
"message" display of the copier and the "Wait" indicator on the copier turns ON.
(1)User error
Problem
a. ADF is not closed
securely.
b. ADF door is not closed
securely.
Note : When the original is
placed in the original
feed tray, the user error
is detected.
Cause / Check
1. The ADF is not installed correctly.
2. The ADF is open.
3. Connector of ADF driver P.C.B. is
broken.
4. ADF open/close detection sensor is
defective.
5. ADF door is open.
6. Original feed cover open/close
detection sensor is defective.
7. ADF driver P.C.B. is defective.
8. ADF open/close sensor harness is
broken.
9. ADF original feed cover open/close
sensor harness is broken.
Code
U10

5-2
Code
J70
J71
Check
1. Original feed roller is worn or dirty.
2.
Foreign material is inside original feed section.
3. Drive mechanism of original feed
section is defective.
4. Original feed motor is defective.
5. Connector of ADF driver P.C.B is
shorted or broken.
6. Original feed solenoid is defective.
7. Original detecting sensor is defective.
8. Registration roller sensor is defective.
9. ADF driver P.C.B.is defective.
1. Transfer belt is worn or dirty.
2. Each roller is worn or dirty.
3. Foreign material is inside original
transport / exit section.
4. Drive mechanism of original exit
section is defective.
5. Transport motor is defective.
6. Connector of ADF driver P.C.B is
shorted or broken.
7. Original exit solenoid is defective.
8. Original exit sensor is defective.
9. ADF driver P.C.B.is defective.
Cause
Original feed section
a. When the registration
roller sensor does not
detect an original within
a predetermined time
after the original feed
motor has started in
forward rotation.
b. The ADF entry paper
pass sensor is detecting
paper before using ADF.
Original transport/exit section.
a. When the original exit
sensor does not detect an
original within a
predetermind time after
transport motor has
started in forward rotation.
b.
When the trail edge of the
original is not detected
within a predetermined time
after the original exit sensor
detects the lead edge of the
original.
(exit operation)
(2) Paper Jam

5-3
Troubleshooting
5. 2 Service mode
(1)F4 mode
1) Input check
c30
c31
Function
Code
No. Message display
76543210
For FA-A355
a)ADF open / close sensor
b)Face up paper exit sensor
c)Original detecting sensor
d)ADF detecting sensor 1
e)Registration roller paper
pass sensor
f) ADF detecting sensor 2
For FA-A355
a)Original size detection
sensor 5 (Length)
b)Original size detection
sensor 4 (Length, Letter/
A4 size original detection)
c)Original size detection
sensor 3 (Width, outside)
d)Original size detection
sensor 2 (Width, middle)
e)Original size detection
sensor 1 (inside)
Condition
ADF is closed.
Original is not detected.
Original is not detected.
ADF is installed.
Original is not detected.
ADF is installed.
Sensor is ON.
Sensor is ON.
Sensor is ON.
Sensor is ON.
Sensor is ON.
c164
c171
c174
c175
Item
Code
No. Paper feed motor foward rotation
Paper feed solenoid
Paper exit speed selection clutch
Paper registration roller clutch
Function
The motor rotates forward.
The solenoid operates.
The clutch operates.
The clutch oprates.
2) Output check
Press the Start key to start and press the Clear key to reset.

5-4
(2)F6 mode Adjust and programming
Set the copier to service mode and press Multi-Copy key "6".
Press the Start key.
Select the desired code number with touch panel display and touch the OK key.
If you wish to select other code number, scroll the menu with arrow keys ( ).
The display will indicate current seting.
Touch the Input key on the touch panel display and input the new setting number
with Multi Copy key.
Increase : Multi Copy key.
Decrease : Reset and Multi Copy key.
When the OK key is touched on the touch panel display, the setting is changed
and is now stored in memory.
When CANCEL key is touched, the desired code input will not be accepted.
Press the Clear and User Preset key to escape service mode.
Code
No. Item Function Remarks
c91
c92
c93
c94
ADF original lead
edge registration
ADF original pick up
registration
ADF Original trail
edge detection
ADF magnification
ratio
Adjustment of
original detection
timing
Adjustment for length of
the loop formed before
registration roller
Adjustment of original
trail edge detection
Adjustment of ratio
when the scan is made.
0.2mm
(-99 to +99)
0.4mm
(-99 to +99)
0.2mm
(-127 to +127)
0.10%
(-9 to +9)
(+) : Enlargement
( - ) : Reduction

Installation
6-1
Section VI Installation
6.1 Installation requirements
The ADF can be affected by ambient conditions.
The following conditions should be carefully checked for normal operation of the
ADF.
1.ADF Should not be installed where the following conditions exist.
(1) Extremely high or low temperature and high humidity.
(2) Areas where temperature and humidity can change rapidly.
(3) In direct sunlight.
(4) Dusty or Dirty areas.
(5) Poor ventilation.
(6) Areas wih chemical gases like ammonia gas.
(7) Areas with excessive vibration.
(8) Directly in air conditioning flow.
2.Installation should be made only after the copier is operating properly. Check points
of the copier.
(1) Lead edge registration.
(2) Side to side registration.
(3) Skew.