Panasonic FA-A335 Service manual

FA-A355 Back to Model List

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

Electrical Maintenance Operation Introduction

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

Troubleshooting

Installation

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.

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.

Section I Introduction

1.1 Specifications

1. For use with: FP-D250/D350 Series

2. Original paper capacity: 50 sheets (20 lb/80 g/m 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/m

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.

Introduction

• 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.

1-1

1.3 Exterior

Original guides

Original exit cover

1.4 Interior

Original pick up solenoid

ADF open/close sensor

Original feed motor

Paper exit deceleration clutch

Original exit sensor 2

Original exit sensor 1

Original exit tray

Transport motor

Door open/close sensor

ADF driver PCB

1-2

Paper exit switching solenoid

Registration sensor

Original size detecting sensor

Original detecting sensor

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)

Paper feed roller Double feed prevention roller

Paper exit roller C

Pick-up roller

Operation

Paper exit roller F

Transport roller

Optical

Registration roller

2-1

(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 F

Transport roller

Registration roller

Paper exit roller C

Optical

Pick-up roller

Paper feed roller Double feed prevention roller

2-2

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)

Part name

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

Part number

FFPMA0604 FFPMA0605

GP1A73A

FFPMA0609 FFPMA0607 FFPMA0606 FFPMA0608 FFPMA0602 FFPMA0603 FFPLR0287

Maintenance interval

Cleaning

Replacement

120,000

60,000 60,000

120,000

60,000 60,000 60,000 60,000

60,000

120,000

(Lubrication)

Brush, air blower, isopropyl alcohol (IPA)

Note: •Rollers should be

–––

––– ––– ––– –––

–––

Remarks

cleaned with water and cloth.

•Use of IPA (Isopropyl alcohol) should be used

sparingly.

Maintenance

3.2 Cleaning

Clean each rollers.

Original support roller

Exit roller Original feed roller

Transport roller

Registration roller

Pick-up roller

DFP roller (lower)

3-1

3.3 Disassembly/Assembly

Location Procedure

(1) Remove the original catch tray 1. (2) Remove the original catch tray 2.

(FA-F350)

Check

(1) Remove the left side cover (3

screws).

(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.

Removal 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.

3-2

Location Procedure

Removal 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.

Check

Maintenance

3-3

Section IV Electrical

4.1 Signal information by connector

(1) P.C.B. connector/Signals

(CN951)

Pin No.

1 2

Symbol ADFVP PGND

Connection Copier connection cable Copier connection cable

Input/Output

24V

Signal DC +24V power supply Power ground

(CN952)

Pin No.

1 2 3 4 5 6 7 8 9

PGND

Symbol ADFIDO ADFIENB ADFILD ADFICLK ADMCLK ADFIIDI ADFRRSN VL GND

Copier connection cable

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

Input/Output

Pulse

OFF

Pulse

5V 0

YES

5V 0

Power ground

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

Electrical

4-1

(CN953)

Pin No.

1 2 3 4 5 6 7

Symbol ADFPV EXCLCT ADFPV PUSLCT ADFPV EXSLCT

–––

Connection

Paper exit deceleration clutch

Pick-up solenoid Pick-up solenoid

Paper exit switching solenoid

–––

Input/Output

24V

–––

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

–––

(CN955)

Pin No.

1 2 3 4 5 6

–––

Symbol

FPMA ADFPV FPMAB PFMB ADFPV PFMBB

–––

Connection Paper feed motor Paper feed motor Paper feed motor Paper feed motor Paper feed motor Paper feed motor

–––

Input/Output

Pulse

24V

Pulse

24V

Pulse

–––

Signal

Paper feed motor drive signal A

DC +24V power supply Paper feed motor drive

signal

A Paper feed motor drive signal B

DC +24V power supply Paper feed motor drive

signal

4-2

(CN956)

Pin No.

1 2 3 4 5 6

(CN957)

Pin No.

1 2 3 4 5 6 7 8

Symbol MMA ADFPV MMAB MMB ADFPV MMBB

Symbol GND ADFDESN VL

GND COPSN VL

Connection Transport motor Transport motor Transport motor Transport motor Transport motor Transport motor

Connection Paper sensor Paper sensor Paper sensor

Cover open/ close sensor Cover open/ close sensor Cover open/

close sensor

Input/Output

Pulse

24V

Pulse

24V

Pulse

Input/Output

YES

Open

5V 0

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

Signal

Signal ground Paper detecting clutch

drive signal DC +5V power supply

Signal ground Cover open/close

detecting signal DC +5V power supply

Electrical

GND

ADFRRSN

Registration sensor Registration sensor Registration sensor

YES

Signal ground Registration sensor

detecting signal

DC +5V power supply

4-3

(CN958)

Pin No.

1 2 3 4

Symbol GND FUEXSH VL

Connection Paper exit FU sensor Paper exit FU sensor Paper exit FU sensor

Input/Output

YES

5V 0

Signal

Signal ground Paper exit face-up

detecting signal DC +5V power supply

GND

FDEXSN

(CN959)

Pin No.

1 2 3 4 5 6 7 8

9 10 11

Symbol GND ADFOSSN1 VL

GND ADFOSSN2 VL

GND ADFOSSN3 VL

Paper exit FD sensor Paper exit FD sensor Paper exit FD sensor

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

YES

5V 0

Input/Output

5V 0

Signal ground Paper exit face-down

detecting signal DC +5V power supply

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

4-4

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