Panasonic KX-FP81BX User manual

©2000 Kyushu Matsushita Electric Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
KX-FP81BX
KX-FP81CX
KX-FP82CX
Compact Plain Paper FAX
ORDER NO. KMF0006416C3

1 INTRODUCTION 3
1.1. SAFETY PRECAUTIONS 3
1.2. INSULATION RESISTANCE TEST 3
1.3. FOR SERVICE TECHNICIANS 3
1.4. BATTERY CAUTION 3
1.5. AC CAUTION 4
1.6. PERSONAL SAFETY PRECAUTIONS 4
1.7. SERVICE PRECAUTIONS 5
1.8. FEATURES 6
1.9. SPECIFICATIONS 7
1.10. OPTIONAL ACCESSORIES 7
1.11. TEST CHART 8
1.12. LOCATION OF CONTROLS 10
1.13. CONNECTIONS 12
1.14. INSTALLATION 13
1.15. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
21
2 TROUBLESHOOTING GUIDE 25
2.1. TROUBLESHOOTING SUMMARY 25
2.2. USER RECOVERABLE ERRORS 26
2.3. TROUBLESHOOTING DETAILS 30
2.4. PROGRAMMING AND LISTS 85
2.5. TEST FUNCTIONS 99
3 ADJUSTMENTS 106
3.1. ADJUSTING THE FEEDER PRESSURE 106
4 DISASSEMBLY INSTRUCTIONS 107
4.1. HOW TO REMOVE THE BOTTOM FRAME 107
4.2. HOW TO REMOVE THE OPERATION PANEL BLOCK
108
4.3. HOW TO REMOVE THE OPERATION BOARD AND LCD
109
4.4. HOW TO REMOVE THE ANALOG, DIGITAL AND
POWER BOARDS AND AC INLET 110
4.5. HOW TO REMOVE THE MOTOR BLOCK 111
4.6. HOW TO REMOVE THE SEPARATION ROLLER 113
4.7. HOW TO REMOVE THE IMAGE SENSOR (CIS) 114
4.8. HOW TO REMOVE THE TERMAL HEAD 115
4.9. HOW TO REMOVE THE PLATEN ROLLER, BACK
COVER 116
4.10. HOW TO REMOVE THE PICKUP ROLLER 117
4.11. HOW TO REMOVE THE CASSETTE PLATE 118
4.12. HOW TO REMOVE THE DOCUMENT TRAY 119
4.13. INSTALLATION POSITION OF THE LEAD WIRES 120
5 HOW TO REPLACE THE FLAT PACKAGE IC 121
5.1. PREPARATION 121
5.2. FLAT PACKAGE IC REMOVAL PROCEDURE 121
5.3. FLAT PACKAGE IC INSTALLATION PROCEDURE 122
5.4. BRIDGE MODIFICATION PROCEDURE 122
6 CIRCUIT OPERATIONS 123
6.1. CONNECTION DIAGRAM 123
6.2. GENERAL BLOCK DIAGRAM 124
6.3. CONTROL SECTION 126
6.4. FACSIMILE SECTION 136
6.5. SENSORS AND SWITCHES 151
6.6. MODEM SECTION 155
6.7. DESCRIPTION OF BLOCK DIAGRAM IN ANALOG
SECTION 162
6.8. NCU SECTION 164
6.9. ITS (Integrated Telephone System) AND MONITOR
SECTION 166
6.10. TAM INTERFACE SECTION 167
6.11. OPERATION BOARD SECTION 169
6.12. LCD SECTION 170
6.13. POWER SUPPLY BOARD SECTION 171
7 TERMINAL GUIDE OF THE ICｴS TRANSISTORS AND DIODES
174
8 FIXTURES AND TOOLS 175
9 CABINET, MECHANICAL AND ELECTRICAL PARTS
LOCATION 176
9.1. OPERATION PANEL SECTION 176
9.2. UPPER CABINET SECTION 177
9.3. LOWER/P.C.B. SECTION 180
9.4. MOTOR SECTION 181
9.5. ACTUAL SIZE OF SCREWS AND WASHER 181
10 ACCESSORIES AND PACKING MATERIALS 182
11 REPLACEMENT PARTS LIST 183
11.1. CABINET AND ELECTRICAL PARTS 183
11.2. DIGITAL BOARD PARTS 184
11.3. ANALOG BOARD PARTS 186
11.4. OPERATION BOARD PARTS 186
11.5. POWER SUPPLY BOARD PARTS 187
11.6. FIXTURES AND TOOLS 188
12 FOR THE SCHEMATIC DIAGRAMS 189
12.1. MEMO 190
13 PRINTED CIRCUIT BOARD 191
13.1. DIGITAL BOARD: BOTTOM VIEW 191
13.2. DIGITAL BOARD: COMPONENT VIEW 192
13.3. ANALOG BOARD: BOTTOM VIEW 193
13.4. ANALOG BOARD: COMPONENT VIEW 194
13.5. OPERATION BOARD 195
13.6. POWER SUPPLY BOARD 196
14 SCHEMATIC DIAGRAM 197
14.1. DIGITAL BOARD 197
14.2. ANALOG BOARD 198
14.3. OPERATION BOARD 199
14.4. POWER SUPPLY BOARD 200
CONTENTS
Page Page
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1 INTRODUCTION
1.1. SAFETY PRECAUTIONS
1.Before servicing, unplug the AC power cord to prevent an electric shock.
2.When replacing parts, use only the manufacturer´s recommended components.
3.Check the condition of the power cord. Replace if wear or damage is evident.
4.After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5.Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to prevent
the customer from being exposed to shock hazards.
1.2. INSULATION RESISTANCE TEST
1.Unplug the power cord and short the two prongs of the plug with a jumper wire.
2.Turn on the power switch.
3.Measure the resistance value with an ohmmeter between the jumpered AC plug and each exposed metal cabinet part
(screw heads, control shafts, bottom frame, etc.).
Note: Some exposed parts may be isolated from the chassis by design. These will read infinity.
4.If the measurement is outside the specified limits, there is a possibility of a shock hazard.
1.3. FOR SERVICE TECHNICIANS
ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1.Cover the plastic part´s boxes with aluminum foil.
2.Ground the soldering irons.
3.Use a conductive mat on the worktable.
4.Do not touch the IC or LSI pins with bare fingers.
1.4. BATTERY CAUTION
CAUTION
Danger of explosion if the battery is replaced incorrectly. Replace only with the same or equivalent type recommended by the
manufacturer. Discard used batteries according to following caution:
Disposal of lithium batteries should be performed by permitted, professional disposal firms knowledgeable in state government
federal and local hazardous materials and hazardous waste transportation and disposal requirements.
A battery continues to have no transportation limitations as long as it is separated to prevent short circuits and packed in strong
packaging.
Commercial firms that dispose of any quantity of lithium cells should have a mechanism in place to account for their ultimate
disposition. This is a good practice for all types of commercial or industrial waste.
Recommend Type Number:
CR2032 (BAT501) Manufactured by MATSUSHITA
CR2032 (BAT501) Manufactured by SONY
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.5. AC CAUTION
For safety, before closing the lower cabinet, please make sure of the following precautions.
1.The earth lead is fixed with the screw.
2.The AC connector is connected properly.
3.Wrap the earth lead around the core 3 times.
4.Wrap the AC lead around the core 2 times.
1.6. PERSONAL SAFETY PRECAUTIONS
1.6.1. MOVING SECTIONS OF THE UNIT
Be careful not to let your hair, clothes, fingers, accessories, etc., become caught in any moving sections of the unit.
The moving sections of the unit are the rollers and a gear. There is a separation roller and a document feed roller which are rotated
by the document feed motor. A gear rotates the two rollers. Be careful not to touch them with your hands, especially when the unit
is operating.
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1.6.2. LIVE ELECTRICAL SECTIONS
All the electrical sections of the unit supplied with AC power by the AC power cord are live.
Never disassemble the unit for service with the AC power supply plugged in.
CAUTION:
AC voltage is supplied to the primary side of the power supply unit. Therefore, always unplug the AC power cord before
disassembling for service.
1.7. SERVICE PRECAUTIONS
1.7.1. PRECAUTIONS TO PREVENT DAMAGE FROM STATIC ELECTRICITY
Electrical charges accumulate on a person. For instance, clothes rubbing together can damage electric elements or change their
electrical characteristics. In order to prevent static electricity, touch a metallic part that is grounded to release the static electricity.
Never touch the electrical sections such as the power supply unit, etc.
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KX-FP81BX / KX-FP81CX / KX-FP82CX

General
·Help function
Please refer to 2.1.3. WHEN YOU DON'T KNOW HOW TO
OPERATE THE UNIT, USE THE HELP FUNCTION.(P.25)
to print below features.
Display:
1.QUICK SET UP
2.FEATURE LIST
3.EASY-DIAL
4.FAX RECEIVING
5.COPIER
6.REPORTS
·LCD (Liquid Crystal Display) readout
·TAM (Telephone answering machine) interface
Plain Paper Facsimile Machine
·12 second transmission speed *
·A4/Letter, G3 compatible
·Automatic document feeder (10 sheets)
·Fax pager call
·Quick scan
·Resolution: Standard/Fine/Super fine/Half tone (64 level)
·Broad cast with Easy-Dial
·50-sheet paper capacity (20 lb.)
·Automatic fax/phone switching
·Distinctive ring detection **
* The speed of 12s/page is based upon the ITU-T No. 1 Test
Chart on the condition that memory transmission is performed.
** Subscription to distinctive ring services is required.
Large Memory (28 pages)... Performed by DRAM
Approx. 28 pages of memory reception
Approx. 25 pages of memory transmission
Integrated Telephone System
·On-hook dialing
·Monitor speaker
·Voice muting
·Redialing function
·50-Station telephone directory with Easy Dial
Enhanced Copier Function
·Multi-copy function (up to 50 copies)
·Enlargement and reduction
·Collate
·64-Level halftone
1.8. FEATURES
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.9. SPECIFICATIONS
Applicable Lines: Public Switched Telephone Network
Document Size: Max. 216 mm (8 1/2") in width
Max. 600 mm (23 5/8") in length
Effective Scanning Width: 208 mm (8 3/16")
Recording Paper Size: Letter: 216×279 mm (8 1/2"×11")
A4: 210×297 mm (8 1/4"×11 11/16")
Effective Printing Width: 208 mm (8 3/16")
Transmission Time*: Approx. 12 s/page (Original mode)**
Scanning Density: Horizontal:
8 pels/mm (203 pels/inch)
Vertical:
3.85 lines/mm (98 lines/inch)—STANDARD mode
7.7 lines/mm (196 lines/inch)—FINE/HALF TONE mode
15.4 lines/mm (392 lines/inch)—SUPER FINE Mode
Halftone Level: 64-level
Scanner Type: Contact Image Sensor (CIS)
Printer Type: Thermal Transfer on Plain Paper
Data Compression System: Modified Huffman (MH), Modified READ (MR), Modified Modified READ(MMR)
Modem Speed: 9,600/7,200/4,800/2,400 bps; Automatic Fallback
Operating Environment: 5—35°C (41—95°F), 20—80 % RH (Relative Humidity)
Dimensions (H×W×D): 185×345×276 mm (7 9/32"×13 19/32"×10 7/8")
Mass (Weight): Approx. 3.2 kg (8.5 lb.)
Power Consumption: Standby: Approx. 3.5 W
Transmission: Approx. 15 W
Reception: Approx. 40 W (When receiving a 20% black document)
Copy: Approx. 40 W (When copying a 20% black document)
Maximum: Approx. 125 W (When copying a 100% black document)
Power Supply: 220-240 V AC, 50/60 Hz
Memory Capacity: Approx. 28 pages memory reception
Approx. 25 pages memory transmission
(Based on ITU-T No. 1 Test Chart in standard resolution without using the Error
Correciton Mode.)
* Transmission speed depends upon the contents of the pages, resolution, telephone line conditions and capability of the other
party’s machine.
** The 12 second speed is based upon the ITU-T No. 1 Test Chart and original mode. (Refer to "1.11. ITU-T No. 1 Test Chart".)
If the capability of the other party´s machine is inferior to your unit, the transmission time may be longer.
Note:
·Any details given in these instructions are subject to change without notice.
·The pictures and illustrations in these instructions may vary slightly from the actual product.
Design and specifications are subject to change without notice.
1.10. OPTIONAL ACCESSORIES
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.11. TEST CHART
1.11.1. ITU-T No.1 TEST CHART
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.11.2. ITU-T No.2 TEST CHART
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.12. LOCATION OF CONTROLS
1.12.1. OVERVIEW
Note:
·The document will be ejected from the front of the unit. Install the unit on a desk or floor with a smooth surface and do not
place anything in front of the unit.
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.12.2. CONTROL PANEL
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.13. CONNECTIONS
(1) Connect the handset cord.
(2) Connect the telephone line cord.
(3) Connect the power cord.
·When the power is turned on for the first time, the unit will print some basic information.
Note:
·For additional equipment protection, we recommend the use of a surge protector. The following types are available;
TELESPIKE BLOK MODEL TSB (TRIPPE MFG. CO.), SPIKE BLOK MODEL SK6-0 (TRIPPE MFG. CO.), SUPER MAX
(PANAMAX) or MP1 (ITW LINX).
The warranty does not cover damage due to power line surges or lightning.
·When you operate this product, the power outlet should be near the product and easily accessible.
·If you want to connect an answering machine to the unit you will remove the stopper with your finger and connect the cord
to the EXT jack.
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.14. INSTALLATION
1.14.1. INSTALLATION SPACE
The space required to install the unit is shown below.
The dimensions given are necessary for the unit to operate efficiently.
Note:
·Avoid excessive heat or humidity.
·Use the unit within the following ranges of temperature and humidity.
·Ambient temperature: 5°C to 35°C
·Relative humidity: 20% to 80% (without condensation)
·Power cord length should be less than 5 meters (16.4 feet). Using a longer cord may reduce the voltage or cause
malfunctions.
·Avoid direct sunlight.
·Do not install near devices which contain magnets or generate magnetic fields.
·Do not subject the unit to strong physical shock or vibration.
·Keep the unit clean. Dust accumulation can prevent the unit from functioning properly.
·To protect the unit from damage, hold both sides when you move it.
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.14.2. INSTALLING THE PAPER TRAY
Insert one tab on the paper tray into one slot on the back of the unit
() and then insert the other tab into the other slot ( ).
Note:
·Do not place the unit in areas where the paper tray may be
obstructed by a wall, etc.
To use A4 size paper
You need to install the A4 paper guide to the right side of the paper tray.
1. Insert the bottom tab on the A4 paper guide into the lower slot.
2. Push the guide into the upper slot.
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.14.3. INSTALLING THE RECORDING PAPER
* A4 or Letter ** size recording paper can be loaded. The unit can hold up to 50 sheets of 60 g/m2to 75 g/m2(16 lb. to 20lb.) paper
or 30 sheets of 90 g/m2(24 lb.) paper.
*A4=210 mm × 297 mm (8 1/4" × 11 11/16")
**Letter=216 mm × 279 mm (8 1/2” × 11”)
For best results, only use inkjet paper such as Hammermill® Jet Print. If you use other types of paper, the print quality may
be affected.
(1) Fan the stack of paper to prevent a paper jam.
(2) Pull the tension bar forward and hold open while inserting
the paper.
·The paper should not be over the tab.
·If the paper is not inserted correctly, readjust the paper
or the paper may jam.
Note for recording paper:
·Avoid paper with a cotton and/or fiber content that is over 20%, such as letterhead paper or paper used for
resumes.
·Do not use different types or thicknesses of paper at the same time. This may cause a paper jam.
·Avoid extremely smooth or shiny paper that is highly textured.
·Avoid paper that is coated, damaged or wrinkled.
Note:
·Avoid double-sided printing
·Do not use paper printed from this unit for double-sided printing with other copiers or printers, or the paper may jam.
·Some paper only accepts print on one side. Try using the other side of paper if you are not happy with the print quality.
Trademarks:
·Hammermill® is a registered trademark of INTERNATIONAL PAPER in the United States and/or other countries.
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.14.4. ADDING PAPER TO THE PAPER TRAY
(1) Pull the cassette open lever forward and remove all of the
installed paper.
(2) Add paper to the removed paper and straighten.
(3) Fan the stack of paper.
(4) Pull the tension bar forward and hold open while inserting
the paper.
1.14.5. DOCUMENTS THE UNIT CAN FEED
Note:
·Remove chips, staples or other similar fastening objects.
·Check that ink, paste or correction fluid has dried.
·Do not send the following types of documents. Use copies for fax transmission.
— Chemically treated paper such as carbon or carbon less duplicating paper
— Electrostatically charged paper
— Heavily curled, creased or torn paper
— Paper with a coated surface
— Paper with a faint image
— Paper with printing on the opposite side that can be seen through the front (e.q. newspaper)
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.14.6. SETTING YOUR LOGO
The logo can be your company, division or name.
(1) Press .
Display:
(2) Press , then .
(3) Press .
(4) Enter your logo, up to 30 characters, by using the dial
keypad.
Example: Bill
a.Press twice.
b.Press six times.
c.Press six times.
d.Press to move the cursor to the next space and
press six times.
(5) Press .
(6) Press .
Note:
·You can enter your logo by rotating .
To correct a mistake
·Press or to move the cursor to the incorrect character,
then make the correction.
To insert a character
1.Press or to move the cursor to the position to the right of
where you want to insert the character.
2.Press (Insert) to insert a space and enter the character.
To delete a character
·Move the cursor to the character you want to delete and press
.
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.14.7. TO SELECT CHARACTERS WITH THE DIAL KEYPAD
1.14.8. TO SELECT CHARACTERS USING THE EASY DIAL
Instead of pressing the dial keys, you can select characters using the EASY DIAL.
(1) Rotate unit the desired character is displayed.
(2) Press to move the cursor to the next space.
·The character displayed in step 1 is inserted.
(3) Return to step 1 to enter the next character.
Display order of characters
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KX-FP81BX / KX-FP81CX / KX-FP82CX

1.14.9. REPLACING THE FILM CARTRIDGE
When the unit runs out of ink film, the following message will be displayed.
Display:
Install a new ink film. The following ink films are available for replacement. Each roll prints about 150 letter size pages.
Refer to 1.10. OPTIONAL ACCESSORIES.(P.7)
Model No. KX-FA53A: Replacement film (1 roll)
Model No. KX-FA55A: Replacement film (2 rolls)
(1) Open the front cover by pulling up the center part.
(2) Push the back cover open button ( ) and open the back
cover ( ).
(3) Pull up the blue gear side and remove the used ink film.
Remove the used core.
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KX-FP81BX / KX-FP81CX / KX-FP82CX

(4) Remove the stoppers and tags from the new ink film. Find
the “T” shaped gear (blue).
(5) Insert the blue core of the front ink film roll into the right slot
of the unit ( ). Insert the “T” shaped gear (blue) into the
left slot of the unit ( ).
Insert the back ink film roll ( ).
(6) If the ink film is slack, tighten it by winding the gear.
(7) Close the back cover securely by pushing down on the
dotted area at both ends ( ).
Close the front cover securely ( ).
·The following message will be displayed while the unit is
checking that there is no slack on the ink film.
Display:
Note:
·The ink film is completely safe to touch, and will not
rub off on your hands like carbon paper.
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KX-FP81BX / KX-FP81CX / KX-FP82CX