KX-FB423CN 1.8. 个人安全预防措施 1.8.1. 机器的运动部分 小心别让您的头发、衣服、手指、装饰品等卷入本机的任何运动部分。 本机的运动部分有滚筒和一个齿轮。有一个由文件输送马达转动的分离滚筒和一个文件输送滚筒。一个齿轮转动这两个滚筒,小心勿 用手触摸它们,尤其在本机工作时。 1.8.2. 通电部分 本机的全部电气部分均由通电的 AC 电源线提供 AC 电源。 切勿拆卸维修插入 AC 电源的本机。 注意事项: 给电源装置的初级侧提供 AC 电压。因此,在拆卸本机进行维修前始终应拔掉 AC 电源线。...
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KX-FB423CN 6.4.2. 编程方式表 代码 功能 设定值 缺省值 遥控设定 Set date and time mm/dd/yy hh:mm Jan/01/2002 Your logo --------- None Your fax number --------- None Transmission report mode 1:ERROR / 2:ON / 3:OFF ERROR FAX ring count 1 to 5 rings (for ext. tam)
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KX-FB423CN 代码 功能 设定值 缺省值 遥控设定 Print test pattern --------- --------- Top margin 1 ~ 9 DTMF ON time 060 ~ 200msec DTMF OFF time 060 ~ 200msec History list 1:Start --------- Journal 2 --------- --------- Journal 3 --------- ---------...
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KX-FB423CN 以下是概述电源组件如何被控制。 此电源组件的控制方法是脉冲宽度调制。 当 O 接通时,接照 E 在传送初级线圈中得到补充能源。当 Q 断开时,能量由次级传送中输出。 L → D → 负载 → L 然后,给负载提供电源。当 Q 接通时,电源不从次级侧输出。根据故障放大整流器的作用,输出电压在控制 IC 中反馈,然后取决于 如何被控,产生稳定。此外,当电流负载过大时,为了降低电压输出,以 表示的增益受到控制,输出电压得以稳定。 因此,基本计时为:Q1 的 T 控制输出电压。...
KX-FB423CN 12 更换零件表 1. RTL( 保有时间限制 ) Ref. Part No. Part Name & Description Remarks 注 : PFDJ1056Z SPACER, DRIVE ROLLER BUSH POM-HB 标记 (RTL) 表示此项目受保有时间限制。 PFDN1055Z ROLLER, DRIVE 在中断生产该组件后,仍可在一定期间继续买到该项目的部 PFUS1340Z LEAF SPRING, FEED PINCH ROLLE 件。 保有期间取决于组件的类型 , 并按照管理部件和产品保...
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KX-FB423CN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PFHG1088Z RUBBER PARTS, PICK UP PFDN1057Z ROLLER, PLATEN PFKV1070X1 COVER, CASETTE PS-HB PFDN1059Z ROLLER, EXIT PFKS1071Y1 TRAY, PAPER CASSETTE LEVER PS-HB PFDG1277Z GEAR...
KX-FB423CN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PFDG1278Y GEAR POM-HB IC506 PFVTSI4431DY TRANSISTOR(SI) PFMH1118Y CHASSIS, MOTOR Q501 PQVTDTC143E TRANSISTOR(SI) 42S1S15D7NC DC MOTOR Q502 2SB1322 TRANSISTOR(SI) PFUS1398Z COIL SPRING Q503 PQVTDTC143E...
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KX-FB423CN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C564 ECEA1CKA100 CN508 K1MN08A00017 CONNECTOR,8P C565 ECEA1CKA100 CN510 PQJP02G100Z CONNECTOR,2P C566 ECUV1H104ZFV CN511 PQJP14A19Z CONNECTOR,14P C567 ECUV1H102KBV 0.001 CN512 PQJP2G30Z CONNECTOR,2P C568 ECUV1H102KBV 0.001...
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KX-FB423CN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R512 ERJ3GEYJ101 R613 ERJ3GEYJ472 4.7k R513 ERJ3GEYJ102 R614 ERJ3GEYJ472 4.7k R514 ERJ3GEYJ821 R615 ERJ3GEYJ222 2.2k R515 ERJ3GEYJ101 R616 ERJ3GEYJ472 4.7k R516 ERDS1VJ152 1.5k...
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KX-FB423CN CONTENTS Page Page 1 INTRODUCTION 8.2. HOW TO REPLACE THE FLAT PACKAGE IC 1.1. SAFETY PRECAUTIONS 8.3. DIGITAL BOARD SECTION 1.2. INSULATION RESISTANCE TEST 8.4. MODEM SECTION 1.3. FOR SERVICE TECHNICIANS 8.5. NCU SECTION 1.4. BATTERY CAUTION 8.6. ITS (Integrated telephone System) and MONITOR 1.5.
KX-FB423CN 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.
KX-FB423CN 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.
KX-FB423CN 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.
KX-FB423CN 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.
Design and specifications are subject to change without notice. 2.3. OPTIONAL ACCESSORIES · We recommend that you buy a full-size replacement film 120 meters for continuous use of your unit. For best results, use genuine Panasonic replacement film as follows. Model No. Description Specifications...
KX-FB423CN 3 INSTALLATION 3.1. LOCATION OF CONTROLS 3.1.1. OVERVIEW (1) Document guides (2) Document exit (3) ADF (Auto Document Feeder) cover (4) Recording paper exit (5) Paper stacker · The paper stacker may not be shown in all illustrations. (6) Recording paper entrance...
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KX-FB423CN 3.1.3. CONTROL PANEL (1) Display (10) NAVIGATOR, VOLUME · To adjust volume. · To search for a stored name. (2) MENU · To initiate or exit programming. · To select the features or feature settings during programming. · To navigate to the next operation.
KX-FB423CN 3.2. CONNECTIONS (1) Connect the handset cord. (2) Connect the telephone line cord. (3) Connect the power cord. Caution: · When you operate this product, the power outlet should be near the product and easily accessible. Note: · To avoid malfunction, do not position fax machine near appliance such as TVs or speakers which generate an intense magnetic field.
KX-FB423CN 3.3. INSTALLATION 3.3.1. 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.
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KX-FB423CN 3.3.2. PAPER STACKER AND PAPER TRAY PAPER STACKER Line up the slots in the paper stacker with the pegs on the bottom of the unit, then slide until locked. · The paper stacker can hold up to approx. 100 sheets of printed paper.
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KX-FB423CN 3.3.3. RECORDING PAPER Letter, legal or A4 size recording paper can be loaded. The unit can hold up to 100 sheets of 75 g/m paper. You may use 60 to 90 g/m paper. See the note for paper specifications.
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KX-FB423CN 3.3.4. DOCUMENTS THE UNIT CAN FEED 3.3.4.1. USING THE ADF (AUTO DOCUMENT FEEDER) Note: · Remove chips, staples or other similar fastening. · Do not send the following types of documents. (Use the scanner glass for fax transmission.) — Chemically treated paper such as carbon or carbon less duplicating paper —...
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KX-FB423CN 3.3.5. SETTING YOUR LOGO The logo can be your company, division or name. To correct a mistake Press [ ] or [ ] to move the cursor to the incorrect character, and make the correction. To delete a character Press [ ] or [ ] to move the cursor to the character you want to delete and press [STOP].
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KX-FB423CN 3.3.6. INK FILM - INSTALLING / REPLACING Install the included ink film or replace the used ink film with a new one. Replacement film Model No. KX-FA67E: prints about 375 A4 sized pages. (Refer to OPTIONAL ACCESSORIES (P.7).) For replacement only: If ejected paper is stacked on the paper stacker, remove it.
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KX-FB423CN Inset the gear of blue core of the front ink film roll into the left slot of the unit ( ). Insert the rear ink film roll ( Turn the gear of blue core in the direction of the arrow.
KX-FB423CN 4 MAINTENANCE 4.1. MAINTENANCE ITEMS and COMPONENT LOCATIONS 4.1.1. OUTLINE MAINTENANCE AND REPAIRS ARE PERFORMED USING THE FOLLOWING STEPS. 1. Periodic maintenance 5. Equipment repairs Inspect the equipment periodically and if necessary, clean Repair or replace the defective parts and take appropriate any contaminated parts.
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KX-FB423CN 4.1.2.1. MAINTENANCE LIST OPERATION CHECK REMARKS Document Path Remove any foreign matter such as paper. — Rollers If the roller is dirty, clean it with a damp cloth then dry Refer to MAINTENANCE CHECK thoroughly. ITEMS/COMONET LOCATIONS(P.18).DOCUMENT FEEDER ROLLERS(P.22)
KX-FB423CN 4.2. PRINT AND EXIT MODE Swing Gear A engages Gear C and conveys its power to the Exit Roller Gear. Swing Gear B engages Gear D and conveys its power to the Platen Roller Gear. 4.3. PAPER PICK UP AND EXIT MODE Swing Gear B engages Gear E and conveys its power to the Exit Roller Gear.
KX-FB423CN 4.4. SCANNING (ADF) · DOCUMENT TRANSMISSION (ADF) The tip of the document is sent to a point of contact between the separation roller and the separation pad through the document feed roller, then the document is fed there separately. The document transference roller carries the document and the CIS reads it through the glass.
KX-FB423CN 4.5. MAINTENANCE 4.5.1. WHITE PLATE AND SCANNER GLASS If a black line, a white line or a smudge appears on your recording paper, on your original, or on the fax document received by the other party, clean the white plate and scanner glass.
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KX-FB423CN 4.5.3. THERMAL HEAD AND ROLLER SHAFT If smudges or black/white bands appear on a copied or received document, check whether there is dust on the thermal head and roller shaft, and clean the thermal head and roller shaft to remove the dust.
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KX-FB423CN Lift two locks ( ), lower the exit guide to unlock the two locks ) and open the exit guide ( Clean the roller shaft with a cloth moistened with isopropyl rubbing alcohol, and let it dry thoroughly. Close the exit guide.
KX-FB423CN 4.6. RECORDING PAPER JAM When the recording paper has jammed in the unit The display will show the following. If ejected paper is stacked on the paper stacker, remove it. Press down the printer cover open button ( ). Open the printer cover ( Remove the jammed paper carefully by puling it toward you.
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KX-FB423CN When the recording paper has jammed near the exit guide: Turn the gear of blue core in the direction of the arrow. · Make sure that the ink film is wrapped around the blue core at least once. Close the printer cover by pushing down on both sides until locked.
KX-FB423CN When the recording paper was not fed into the unit properly The display will show the following. Remove the recording paper and straighten. Pull the tension plate forward and hold open while inserting the paper. Press [SET] to clear the message.
KX-FB423CN 5 DISASSEMBLY INSTRUCTIONS Before disassembling, remove the Ink Film. 5.1. DISASSEMBLY FLOW CHART 5.1.1. UPPER MAIN CABINET SECTION CROSS REFERENCE: A-1: HOW TO REMOVE THE PAPER TRAY AND DOCUMENT COVER (P.32) A-2: HOW TO REMOVE THE PRINTER COVER (P.33)
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KX-FB423CN 5.1.2. LOWER MAIN CABINET SECTION CROSS REFERENCE: A-1: HOW TO REMOVE THE PAPER TRAY AND DOCUMENT COVER (P.32) A-2: HOW TO REMOVE THE PRINTER COVER (P.33) A-4: HOW TO REMOVE THE BOTTOM FRAME AND HANDSET CRADLE (P.35) A-5: HOW TO REMOVE THE DIGITAL / ANALOG / POWER SUPPLY /26 REED SW BOARD AND AC INLET (P.36)
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KX-FB423CN 5.1.3. DOCUMENT COVER (ADF) SECTION CROSS REFERENCE: A-1: HOW TO REMOVE THE PAPER TRAY AND DOCUMENT COVER (P.32) B-1: HOW TO REMOVE THE WHITE SHEET (P.38) B-2: HOW TO REMOVE THE DOCUMENT GUIDES (P.38) B-3: HOW TO REMOVE THE ADF RELAY BOARD (P.39) B-4: HOW TO REMOVE THE FEED ROLLER AND SEPARATION ROLLER (P.39)
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KX-FB423CN 5.1.4. PRINTER COVER SECTION CROSS REFERENCE: A-1: HOW TO REMOVE THE PAPER TRAY AND DOCUMENT COVER (P.32) A-2: HOW TO REMOVE THE PRINTER COVER (P.33) C-1: HOW TO REMOVE THE PICK UP ROLLER (P.42) C-2: HOW TO REMOVE THE EXIT ROLLER AND PLATEN ROLLER (P.43) C-3: HOW TO REMOVE THE OPERATION BOARD (P.44)
KX-FB423CN 5.2. DISASSEMBLY PROCEDURE 5.2.1. HOW TO REMOVE THE PAPER TRAY AND DOCUMENT COVER...
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KX-FB423CN 5.2.2. HOW TO REMOVE THE PRINTER COVER...
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KX-FB423CN 5.2.3. HOW TO REMOVE THE THERMAL HEAD...
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KX-FB423CN 5.2.4. HOW TO REMOVE THE BOTTOM FRAME AND HANDSET CRADLE...
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KX-FB423CN 5.2.5. HOW TO REMOVE THE DIGITAL / ANALOG / POWER SUPPLY /26 REED SW BOARD AND AC INLET...
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KX-FB423CN 5.2.6. HOW TO REMOVE THE MOTOR BLOCK, LOCK LEVER AND SPEAKER...
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KX-FB423CN 5.2.7. HOW TO REMOVE THE WHITE SHEET 5.2.8. HOW TO REMOVE THE DOCUMENT GUIDES...
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KX-FB423CN 5.2.9. HOW TO REMOVE THE ADF RELAY BOARD 5.2.10. HOW TO REMOVE THE FEED ROLLER AND SEPARATION ROLLER...
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KX-FB423CN 5.2.11. HOW TO REMOVE THE TOP COVER AND CONVEYOR BLOCK...
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KX-FB423CN 5.2.12. HOW TO REMOVE THE ADF MOTOR AND PF SENSOR BOARD 5.2.13. HOW TO REMOVE THE ADF EXIT ROLLER AND DRIVE ROLLER...
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KX-FB423CN 5.2.14. HOW TO REMOVE THE PICK UP ROLLER...
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KX-FB423CN 5.2.15. HOW TO REMOVE THE EXIT ROLLER AND PLATEN ROLLER...
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KX-FB423CN 5.2.16. HOW TO REMOVE THE OPERATION BOARD...
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KX-FB423CN 5.2.17. HOW TO REMOVE THE SCANNER GLASS UNIT, CIS AND PAPER TRAY BLOCK...
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KX-FB423CN 5.2.18. HOW TO REMOVE THE CIS RELAY BOARD AND CIS SENSOR BOARD 5.2.19. HOW TO REMOVE THE CARRIAGE MOTOR AND SCAN MOTOR DRIVE BOARD...
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KX-FB423CN 5.2.20. HOW TO REMOVE THE COMPONENT PARTS OF PAPER TRAY BLOCK...
KX-FB423CN 6 TROUBLESHOOTING GUIDE 6.1. USER RECOVERABLE ERRORS If the unit detects a problem, one or more of the following messages will appear on the display. The explanations given in the [ ] are for servicemen only. DISPLAY MESSAGE CAUSE AND REMEDY ·...
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KX-FB423CN DISPLAY MESSAGE CAUSE AND REMEDY · The ink film is empty. Replace the ink film with a new one. (Refer to INK FILM - INSTALLING / REPLACING (P.25).) · The ink film is not installed. Install it. (Refer to INK FILM - INSTALLING / REPLACING (P.25).) ·...
KX-FB423CN 6.2. PROGRAMMING AND LISTS The programming functions are used to program the various features and functions of the machine, and to test the machine. This facilitates communication between the user and the service man while programming the unit. 6.2.1.
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KX-FB423CN 6.2.3. SERVICE FUNCTION TABLE Code Function Set Value Effective Default Remarks Range Pause time set X 100 msec 001~600 ---------- Flash time X 10 ms 01~99 ---------- Dial speed select 1:10 pps 2:20 1, 2 ---------- CED frequency select...
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KX-FB423CN Code Function Set Value Effective Default Remarks Range Receive speed selection 1:14400BPS Adjusts the speed to start training during FAX 2:12000BPS reception. Refer to RECEIVE PROBLEM (P.85). 3:9600BPS 4:7200BPS 5:4800BPS 6:2400BPS Redial tone detect 1:ON 2:OFF 1, 2 Sets the tone detection mode after redialing.
KX-FB423CN 6.3. TEST FUNCTIONS The codes listed below can be used to perform simple checks of some of the unit’s functions. When complaints are received from customers, they provide an effective tool for identifying the locations and causes of malfunctions.
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KX-FB423CN 6.3.1. DTMF SINGLE TONE TRANSMIT SELECTION When set to ON (=1), the 12 keys and transmission When set to OFF (=2), the 12 keys and transmission frequencies are as shown. frequencies are as shown. High Frequency (Hz) Low Frequency (Hz)
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KX-FB423CN 6.3.3. PRINT TEST PATTERN 1. Platen roller 3. Thermal head 1 dot 2. Left margin / Top margin 4. Use this test pattern to confirm the torque limiter for ink film and platen roller timing...
KX-FB423CN 6.4. REMOTE PROGRAMMING If, after the call is connected, the customer describes the situation and it is determined that the problem can be corrected by making parameter changes, this function makes it possible to change parameters such as the user code and service code from another fax (using DTMF tones).
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KX-FB423CN 6.4.2. PROGRAM MODE TABLE Code Function Set Value Default Remote Setting Set date and time mm/dd/yy hh:mm Jan/01/2002 Your logo --------- None Your fax number --------- None Transmission report mode 1:ERROR / 2:ON / 3:OFF ERROR FAX ring count 1 to 5 rings (for ext.
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KX-FB423CN Code Function Set Value Default Remote Setting Original setting 1:Normal / 2:Light / 3:Darker Normal Print test pattern --------- --------- Top margin History list 1:Start --------- Journal 2 --------- --------- Journal 3 --------- --------- Setup list 1:Start --------- Journal list...
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KX-FB423CN 6.4.3. HISTORY (Example of a printed out list) Note: See the following descriptions of this report. Item No. (1) ~ (46) are corresponding to the listed items in DESCRIPTIONS OF THE HISTORY REPORT(P.64).
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KX-FB423CN 6.4.3.1. DESCRIPTIONS OF THE HISTORY REPORT (21) NUMBER OF COPY (1) ROM VERSION The number of pages copied. FLASH ROM version (22) NUMBER OF RECEIVE (2) SUM The number of pages received. FLASH ROM internal data calculation. (23) NUMBER OF SENDING (3) YOUR LOGO The number of pages sent.
KX-FB423CN 6.5. TROUBLESHOOTING DETAILS 6.5.1. OUT LINE Troubleshooting is for recovering quality and reliability by determining the broken component and replacing, adjusting or cleaning it as required. First, determine the problem then decide the troubleshooting method. If you have difficulty finding the broken part, determine which board is broken.
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KX-FB423CN 6.5.3. TROUBLESHOOTING ITEMS TABLE ITEM SYMPTOM REFERENCE Recording paper feed The recording paper does not feed. See THE RECORDING PAPER DOES NOT FEED (P.67). Paper jammed See PAPER JAMMED (P.68). Multiple feed and skew See MULTIPLE FEED AND SKEW (P.69).
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KX-FB423CN 6.5.4. RECORDING PAPER FEED 6.5.4.1. THE RECORDING PAPER DOES NOT FEED * We recommend making a copy of the Fig. b document in NO DOCUMENT FEED, DOCUMENT JAM and MULTIPLE DOCUMENT FEED(P.76) and using it. CROSS REFERENCE: a* : UPPER PRINTER COVER SECTION AND PAPER TRAY SECTION (P.174)
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KX-FB423CN 6.5.4.2. PAPER JAMMED CROSS REFERENCE: PRINT AND EXIT MODE (P.20) PAPER PICK UP AND EXIT MODE (P.20) DISASSEMBLY INSTRUCTIONS (P.28) TEST FUNCTIONS (P.57) SENSOR SECTION (P.106) SENSORS AND SWITCHES SECTION (P.138)
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KX-FB423CN 6.5.4.3. MULTIPLE FEED AND SKEW CROSS REFERENCE: HOW TO REMOVE THE PICK UP ROLLER (P.42) UPPER PRINTER COVER SECTION AND PAPER TRAY SECTION (P.174) 6.5.4.4. THE SENT FAX DATA IS SKEWED * We recommend making a copy of the Fig. b document in NO DOCUMENT FEED, DOCUMENT JAM and MULTIPLE DOCUMENT FEED(P.76) and using it.
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KX-FB423CN 6.5.4.6. RECEIVED OR COPIED DATA IS EXPANDED * We recommend making a copy of the Fig. b document in NO DOCUMENT FEED, DOCUMENT JAM and MULTIPLE DOCUMENT FEED(P.76) and using it. CROSS REFERENCE: HOW TO REMOVE THE FEED ROLLER AND SEPARATION ROLLER (P.39)
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KX-FB423CN 6.5.4.7. A BLANK PAGE IS COPIED * We recommend making a copy of the Fig. b document in NO DOCUMENT FEED, DOCUMENT JAM and MULTIPLE DOCUMENT FEED(P.76) and using it. CROSS REFERENCE: HOW TO REMOVE THE THERMAL HEAD (P.34) TEST FUNCTIONS (P.57)
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KX-FB423CN 6.5.4.8. A BLANK PAGE IS RECEIVED CROSS REFERENCE: TEST FUNCTIONS (P.57) A BLANK PAGE IS COPIED (P.71) ANALOG BOARD SECTION (P.103) 6.5.4.9. BLACK OR WHITE VERTICAL LINE * We recommend making a copy of the Fig. b document in NO DOCUMENT FEED, DOCUMENT JAM and MULTIPLE DOCUMENT FEED(P.76) and using it.
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KX-FB423CN 6.5.4.10. BLACK OR WHITE LATERAL LINE * We recommend making a copy of the Fig. b document in NO DOCUMENT FEED, DOCUMENT JAM and MULTIPLE DOCUMENT FEED(P.76) and using it. CROSS REFERENCE: HOW TO REMOVE THE PICK UP ROLLER (P.42) TEST FUNCTIONS (P.57)
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KX-FB423CN 6.5.4.11. AN ABNORMAL IMAGE IS PRINTED * We recommend making a copy of the Fig. b document in NO DOCUMENT FEED, DOCUMENT JAM and MULTIPLE DOCUMENT FEED(P.76) and using it. CROSS REFERENCE: HOW TO REMOVE THE THERMAL HEAD (P.34) TEST FUNCTIONS (P.57)
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KX-FB423CN 6.5.5. ADF (Auto document feed) SECTION 6.5.5.1. NO DOCUMENT FEED, DOCUMENT JAM and MULTIPLE DOCUMENT FEED CROSS REFERENCE: SENSOR SECTION (P.106)
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KX-FB423CN CROSS REFERENCE: MOTOR SECTION (P.109)
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KX-FB423CN 6.5.5.2.2. SCANNER GLASS 6.5.5.3. THE SENT FAX DATA IS SKEWED CROSS REFERENCE: SKEW (P.78) 6.5.5.4. THE RECEIVED FAX DATA IS SKEWED CROSS REFERENCE: MULTIPLE FEED AND SKEW (P.69)
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KX-FB423CN 6.5.5.5. THE RECEIVED OR COPIED DATA IS EXPANDED 6.5.5.6. BLACK OR WHITE VERTICAL LINE IS COPIED...
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KX-FB423CN 6.5.5.7. AN ABNORMAL IMAGE IS COPIED CROSS REFERENCE: WHITE PLATE AND SCANNER GLASS (P.22) HOW TO REMOVE THE SCANNER GLASS UNIT, CIS AND PAPER TRAY BLOCK (P.45) HOW TO REMOVE THE CARRIAGE MOTOR AND SCAN MOTOR DRIVE BOARD (P.46)
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KX-FB423CN 6.5.6. COMMUNICATION SECTION Find the problem in the table shown below, and refer to the corresponding troubleshooting procedure in DEFECTIVE FACSIMILE SECTION (P.83). Symptom Content Possible cause The paper dose not feed properly when faxing. Troubleshooting Problem with the feeding (Copying is also not possible.)
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KX-FB423CN 6.5.6.1.2. SOMETIME THERE IS A TRANSMIT PROBLEM Note: “596: Transmit level set” represents a service code. Refer to the SERVICE FUNCTION TABLE (P.55).
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KX-FB423CN 6.5.6.1.3. RECEIVE PROBLEM Confirm the following before starting troubleshooting. · Is the recording paper installed properly? Refer to the next page. Note: “596: Transmit level set” represents a service code. Refer to the SERVICE FUNCTION TABLE (P.55).
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KX-FB423CN Remarks: Regarding the reception problem, we have investigated the conceivable causes in the flow chart except for the software-related errors. However, some troubles may occur due to the software-related problems such as "OUT OF PAPER" when the fax switches to the memory receiving mode and the memory capacity becomes full of the unprintable data. In this case, error messages [MEMORY FULL] and its main cause, for example "CHECK PAPER"...
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KX-FB423CN 6.5.7. SPECIAL SERVICE JOURNAL REPORTS Journal 2 and Journal 3 shown below, which are special journals giving the additional detailed information about the latest 35 communications, can be printed by Service Code 881 or 882. Remote printing function for the journal reports (JOURNAL, JOURNAL 2 and JOURNAL 3) is also available for service technicians.
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KX-FB423CN 6.5.7.1. JOURNAL 2 Refer to JOURNAL 2 in PRINTOUT EXAMPLE(P.89). Journal 2 displays the additional detailed information about the last 35 communications. Descriptions: (1) RCV. MODE Indicates which receive mode the unit was in when the unit received a fax message.
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KX-FB423CN 6.5.7.2. JOURNAL 3 Refer to JOURNAL 3 in PRINTOUT EXAMPLE(P.89). Description (6) ENCODE (9) ERROR LINE (RX) Compression Code: MH/MR/MMR When an error occurs while receiving a fax, this shows the number of error lines. (7) MSLT (10) MAKER CODE MSLT means Minimum Scan Line Time.
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KX-FB423CN 6.5.7.4. HOW TO OUTPUT THE JOURNAL REPORT 1. Press the [MENU] button. 2. Press [#], then [8] and [4]. 3. Press the [SET] button. 4. The report prints out. (1) CODE (2) RESULT (3) MODE SYMPTOM Counter- measure* PRESSED THE STOP KEY SND &...
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KX-FB423CN CROSS REFERENCE: TEST FUNCTIONS (P.57)
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KX-FB423CN 6.5.7.5. CHECK THE STATUS OF THE DIGITAL BOARD...
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KX-FB423CN 6.5.8. INITIALIZING ERROR After the power is turned on, the ASIC initializes and checks each IC. The ROM, DRAM, and modem are checked. If initialization fails for the ICs, the system will not boot up. In this case, please find the cause as follows.
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KX-FB423CN CROSS REFERENCE: CHECK THE STATUS OF THE DIGITAL BOARD (P.100)
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KX-FB423CN 6.5.9. ANALOG BOARD SECTION This chapter provides the testing procedures required for the analog parts. A signal route to be tested is determined depending upon purposes. For example, the handset TX route begins at the handset microphone and the signal is output to the telephone line.
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KX-FB423CN 6.5.9.2. DEFECTIVE ITS (Integrated Telephone System) SECTION 1. No handset and speakerphone transmission / reception Perform a signal test in the ITS or the NCU section and locate a defective point (where the signal disappears) on each route between the handset microphone and telephone line (sending), or between the telephone line and the handset speaker (receiving), or between the microphone and the telephone line (sending), or between the telephone line and the speaker (receiving).
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KX-FB423CN 6.5.9.3. DETECTIVE TAM INTERFACE SECTION A FAX is received, but won´t switch from TAM to FAX. CROSS REFERENCE: ANALOG BOARD SECTION (P.103) TAM INTERFACE SECTION (P.166) 6.5.10. OPERATION BOARD SECTION 1. NO KEY OPERATION 2. NO LCD INDICATION CROSS REFERENCE:...
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KX-FB423CN 6.5.11. SENSOR SECTION Refer to SENSORS AND SWITCHES SECTION (P.138). Perform an SENSOR CHECK to determine if the sensor is operating correctly. 1. Check the document sensor..“CHECK DOCUMENT” 2. Check the paper feed sensor..“REMOVE DOCUMENT” 3. Check the hook switch...
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KX-FB423CN 5. Check the paper sensor..“OUT OF PAPER” 6. Check the paper sensor..“PAPER JAMED” 7. Check the film sensor..“CHECK FILM TYPE” or “CHECK FILM SLACK“ 8. Check the ADF cover open switch 9. Check the FB cover open switch...
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KX-FB423CN 10. Check the CIS position sensor (ADF Home side) 11. Check the CIS position sensor (FB Home side)
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KX-FB423CN 6.5.12. MOTOR SECTION 6.5.12.1. RX MOTOR CROSS REFERENCE: HOW TO REMOVE THE MOTOR BLOCK, LOCK LEVER AND SPEAKER (P.37) POWER SUPPLY BOARD SECTION (P.114)
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KX-FB423CN 6.5.12.2. ADF MOTOR CROSS REFERENCE: POWER SUPPLY BOARD SECTION (P.114)
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KX-FB423CN 6.5.12.3. CR MOTOR CROSS REFERENCE: POWER SUPPLY BOARD SECTION (P.114)
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KX-FB423CN 6.5.15. POWER SUPPLY BOARD SECTION 6.5.15.1. KEY COMPONENTS FOR TROUBLESHOOTING Check the following parts first: F101, D101-D104, C106, Q101, PC101 and IC101. This comes from our experience with experimental tests. For example: power supply and lightning surge voltage test, withstanding voltage test, intentional short circuit test, etc.
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KX-FB423CN 6.5.15.3. BROKEN PARTS REPAIR DETAILS (D101, D102, D103, D104) Check for a short-circuit in terminal 4. If D101, D102, D103 and D104 are short-circuits, F101 will melt (open). In this case, replace all of the parts (D101, D102, D103, D104, F101).
8. Power Supply Board Switching Section Supplies +5V and +24V to the unit. 9. Film detection Unit Detect whether the film is made by panasonic and inform left amount of ink film. 10. Thermal Head Contains heat emitting elements for dot matrix image printing.
KX-FB423CN 7.3. FACSIMILE SECTION 7.3.1. DIGITAL SECTION 7.3.1.1. DIGITAL BLOCK DIAGRAM...
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KX-FB423CN 7.3.1.2. ASIC (IC501) This custom IC is used for the general FAX operations. 6. IMAGE DATA RAM: 1. CPU: This memory is programmed into the ASIC and uses 8 KB for the image processing. (See Fig. A.*) This model uses a Z80 equivalent to the CPU operating at 12 MHz.
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KX-FB423CN 7.3.1.3. FLASH MEMORY (IC523) The 512KB ROM (FLASH MEMORY) carries a common area of 32KB and bank areas which each have 8KB (BK4~BK63). The addresses from 0000H to 7FFFH are for the common area and from 8000H to 9FFFH are for the bank areas.
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KX-FB423CN SIGNAL POWER SUPPLIED DESCRIPTION VOLTAGE XTEST 3.3V 24MHz CLOCK TEST1 3.3V HIGH FIXED TEST2 3.3V HIGH FIXED TEST3 3.3V HIGH FIXED TEST4 3.3V HIGH FIXED XMDMINT 3.3V MODEM INTERRUPT XMDMCS 3.3V MODEM CHIP SELECT XRAS/IOP 3.3V DRAM (IC503) ROW ADDRESS STROBE XCAS1/IOP 3.3V...
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KX-FB423CN SIGNAL POWER SUPPLIED DESCRIPTION VOLTAGE STBNP 3.3V INPUT PORT (TEST) RM0/IOP 3.3V RX MOTOR A PHASE RM1/IOP 3.3V RX MOTOR PHASE RM2/IOP 3.3V RX MOTOR B PHASE RM3/IOP 3.3V RX MOTOR PHASE RXE/IOP 3.3V RX MOTOR ENABLE SIGNAL 3.3V ASF/CIS MOTOR A PHASE VDD (2.5V)
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KX-FB423CN 7.3.2. RESET CIRCUIT The output signal (reset) from pin 4 of the voltage detect IC (IC507) is input to the ASIC (IC501) 114 pin. 1. During a momentary power interruption, a positive reset pulse of 50~70 msec is generated and the system is reset completely.
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KX-FB423CN 7.3.3. RTC BACKUP CIRCUIT 1. Function This unit has a lithium battery (BAT501) which works for Real Time Clock IC (RTC: inside IC501). The RTC continues to work, backed up by a lithium battery even when the power switch is OFF.
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KX-FB423CN 7.3.5. SUPERVISION CIRCUIT FOR THE THERMAL HEAD TEMPERATURE 1. Function The thermistor changes the resistor according to the temperature and uses the thermistor´s characteristics. The output of pin 139 of IC501 becomes a low level. Then when it becomes a high level, it triggers point A In point C, according to the voltage output time, the thermal head´s temperature is detected.
KX-FB423CN 7.4. SCANNING BLOCK The scanning block of this device consists of a control circuit and a contact image sensor made up of a celfoc lens array, an LED array, and photoelectric conversion elements. When an original document is inserted and the start button pressed, pin 21 of IC501 goes to a high level and the transistor Q507 turns on.This applies voltage to the LED array to light it.
KX-FB423CN 7.5. STEPPING MOTOR DRIVE SECTION 7.5.1. MOTOR DRIVE CIRCUIT 1. Functions This motor functions for main operations FAX reception and copy printing. This feed recording paper synchronized for printing. 2. Motor operation Excitation pulses is output from ASIC (IC501) pins 120~123. Then stepping pulses are output from driver IC (IC525) pin No 18, 19, 15, 14 and drives the motor coil.
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KX-FB423CN 7.5.2. ADF (Auto Document Feed) MOTOR DRIVE CIRCUIT 1. Functions This motor functions for main operations including FAX transmission, ADF copy and PC scan. This feed document paper synchronized for reading. 2. Motor operation During motor driving, pin 43 of Gate Array IC520 becomes a high level, and Q507, Q504 turns ON.
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KX-FB423CN 7.5.2.2. ADF (Auto Document Feed) MOTOR DRIVE CIRCUIT (1) Circuit Diagram DRIVE MODE FUNCTION MODE PHASE PATTERN SPEED STANDARD 1-2 phase 432pps FAX/COPY FINE/HALF TONE 1-2 phase 432pps FAX/COPY SUPER FINE 1-2 phase 216pps DOCUMENT FEED 1-2 phase 432pps...
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KX-FB423CN 7.5.3. CR (Carriage) MOTOR DRIVE CIRCUIT 1. Functions This motor functions for main operations including FAX transmission, FB copy and PC scan. This feed document paper synchronized for reading. 2. Motor operation During motor driving, pin 32 of Gate Array IC520 becomes a high level, and Q503, Q502 turns ON.
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KX-FB423CN 7.5.3.2. CR (Carriage) MOTOR DRIVE CIRCUIT (1) Circuit Diagram DRIVE MODE FUNCTION MODE PHASE PATTERN SPEED STANDARD 2-2 phase 432pps FAX/COPY FINE/HALF TONE 1-2 phase 432pps FAX/COPY SUPER FINE 1-2 phase 216pps NO SCANNING 2-2 phase 432pps STAND-BY ALL PHASE OFF...
KX-FB423CN 7.6. SENSORS AND SWITCHES SECTION All of the sensor and switches are shown below. Sensor Circuit Location Sensor Sensor or Switch Name Message Error ADF Relay Board PS500 Document [CHECK DOCUMENT] PF Sensor Board PS501 Paper Feed [REMOVE DOCUMENT]...
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KX-FB423CN 7.6.2. DOCUMENT SENSOR..”CHECK DOCUMENT” AND PAPER FEED SENSOR..”REMOVE DOCUMENT” These Sensors detect whether or not a document is in place. When a document is detected, the shelter plate let the sensor light pass through, the photo-transistor turns ON, and the input signal of IC501-22pin /IC501-23pin becomes a low level.
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KX-FB423CN 7.6.3. CIS POSITION SENSOR These Sensors detect whether or not CIS is in home position. When the CIS is detected, the shelter plate shuts off the sensor light, the photo-transistor turns OFF, and the input signal of IC520-52pin /IC520-53pin becomes a high level.
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KX-FB423CN 7.6.4. ADF COVER OPEN SWITCH The Switch detects whether the ADF cover is open or closed. When the ADF cover is closed, the switch turns ON, and the input signal of IC505-93pin becomes a low level. When the ADF cover is open, the switch turns OFF, and the input signal of IC505-93pin becomes a high level.
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KX-FB423CN 7.6.6. COVER OPEN SWITCH..”COVER OPEN” The Switches detect whether the printer cover is open or closed. When the printer cover is closed, the switches turn ON, and the input signal of IC505-94 pin becomes a high level. When the printer cover is open, the switches turns OFF, and the input signal of IC505-94 pin becomes a low level.
KX-FB423CN 7.8. LCD SECTION The Gate Array (IC301) works only for writing the ASCII code from the data bus (D4~D7). V0 is supplied for the crystal drive. R303, R306 and R307 are density control resistors. Consequently, in this unit, the timing (positive clock) is generated by the LCD interface circuitry in the gate array (IC301).
KX-FB423CN 7.9. POWER SUPPLY BOARD SECTION This power supply board uses the switching regulator method. [Input Circuit] The input current goes into the input rectifier circuit through the filter circuit. The filter circuit decreases the noise voltage and the noise electric field strength.
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KX-FB423CN The following is an overview of how the power supply unit is controlled. The control method of this power supply unit is pulse width modulation. When Q is ON, the energy is charged in the transfer primary coil according to E .
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KX-FB423CN [Surge Absorber Circuit] This circuit is for absorbing surge voltage generated by the transformer. [Control Circuit and Detecting Circuit] The control circuit amplifies the output with increased voltage detected in the error detecting circuit. Then it drives the main transistor.
KX-FB423CN 7.10. THERMAL HEAD 1. Function This unit utilizes the state of the art thermal printer technology. The ink film is chemically processed. The ink film is comprised of two parts: an ink layer and a base film. When the thermal head contacts this ink film, it emits heat momentarily, and the ink layer is melted and transferred to the paper.
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KX-FB423CN ASF Copy (Mode: Fine) only Printing speed changes with the ratio of the black portion of a document. Ex:)1st line is 50% or less of black portions, 2st line is 50% or more of black portions.
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KX-FB423CN Book Copy / ASF Copy (Except Fine mode): RX printing...
KX-FB423CN 8.2. HOW TO REPLACE THE FLAT PACKAGE IC Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
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KX-FB423CN 8.2.3. FLAT PACKAGE IC INSTALLATION PROCEDURE 1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins. *Check the accuracy of the IC setting with the corresponding soldering foil. 2. Apply flux to all pins of the FLAT PACKAGE IC.
KX-FB423CN 8.3. DIGITAL BOARD SECTION When the unit fails to boot up the system, take the troubleshooting procedures very carefully. It may have a serious problem. The symptom: No response when the power is turned on. (No LCD display, and keys are not accepted.) The first step is to check the power source.
KX-FB423CN 8.4. MODEM SECTION 8.4.1. FUNCTION The unit uses a 1 chip modem (IC505) that serves as an interface between the control section for FAX transmission and reception and the telephone line. During a transmitting operation, the digital image signals are modulated and sent to the telephone line.
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KX-FB423CN 3. Facsimile Call Time Series As shown in the following diagram, the facsimile call time series is divided into five phases. Phase A : Call setting Call setting can be manual/automatic. Phase B : Pre-message procedure Phase B is a pre-processing procedure and sequence for confirming the status of the terminal, transmission route, etc., and for terminal control.
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KX-FB423CN 6. Explanation of Communication and Compression Technology a. G3 Communication Signals (T. 30 Binary Process) For G3 Facsimile communication, this is the procedure for exchanging control signals between the sending and receiving machines both before and after transmission of image signals.
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KX-FB423CN Bit No. DIS/DTC Reserved for future T.3 operation features Reserved for future T.3 operation features. Reserved for future T.3 operation features. Transmitter --- T.4 operation Receiver --- T.4 operation Receiver --- T.4 operation 11, 12, 13, 14 Data signaling rate...
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KX-FB423CN Bit No. DIS/DTC Extend field Extend field R8×15.4 lines/mm R8×15.4 lines/mm 300×300 pels/25.4 mm 300×300 pels/25.4 mm R16×15.4 lines/mm and/or 400×400 pels/25.4 mm R16×15.4 lines/mm and/or 400×400 pels/25.4 mm Inch based resolution preferred Resolution type selection “0”: neuritic based resolution “1”: inch based resolution...
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KX-FB423CN b. Redundancy Compression Process Coding Mode This unit uses one-dimensional MH format.
KX-FB423CN 8.5. NCU SECTION 8.5.1. GENERAL This section is the interface between the telephone line and external telephone. It is composed of an EXT. TEL line relay (RLY101), bell detection circuit, pulse dial circuit, TAM interface circuit, line amplifier and sidetone circuits and a multiplexer.
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KX-FB423CN 8.5.6. LINE AMPLIFIER AND SIDE TONE CIRCUIT 1. Circuit Operation The reception signal output from the line transformer T101 is input to pin (2) of IC101 via C112, R112 and then the signal is amplified at pin (1) of IC101 and sent to the reception system at 11.6dB.
KX-FB423CN 8.6. ITS (Integrated telephone System) and MONITOR SECTION 8.6.1. GENERAL During the monitor operation, the speaker output passes through the power amplifier (IC519) [digital board]. The DTMF signal is output from the modem (IC505: digital board). The alarm tone, the key tone, bell tone, and beep are output from gate array IC501 (digital board).
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KX-FB423CN 8.6.1.4. TAM INTERFACE SECTION 1. Function If EXT. TAM is selected in the Receive mode, the unit receives documents for FAX calls or the external TAM records a voice message automatically. To switch between the answering machine and facsimile in the EXT. TAM Mode.
KX-FB423CN 12 REPLACEMENT PARTS LIST 1. RTL (Retention Time Limited) Ref. Part No. Part Name & Description Remarks Note: PFKR1021Y1 GUIDE, DOCUMENT (RIGHT) ABS-HB The marking (RTL) indicates that the Retention Time is PFKR1022Y1 GUIDE, DOCUMENT (LEFT) ABS-HB PFQT1891Z INDICATION LABEL, FACE DOWN limited for this item.
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KX-FB423CN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PFDG1245Z GEAR POM-HB PFHX1246Z COVER, SCREW PFDE1173Z ARM, SWING POM-HB PFHX1539Z COVER, PROTECTION TONER SHEET PET-UL PFDG1244Z GEAR POM-HB PFMH1105Z METAL PARTS, PIVOT DOOR LOCK...
KX-FB423CN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PFUS1416Z COIL SPRING PQJA10075Z CORD, TELEPHONE PFHR1356Y SPACER, DOOR LOCK STOPPER PFKS1074Z1 TRAY, A4 SPACER PS-HB XUC3FY RETAINING RING PFKS1078Z1 TRAY, PAPER PS-HB...
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KX-FB423CN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C503 ECEA1CK101 C618 ECUV1H102KBV 0.001 C504 PQCUV1C105ZF C619 ECUV1H104ZFV C506 PQCUV1C105ZF C620 ECUV1H104ZFV C509 ECUV1H102KBV 0.001 C621 ECUV1H104ZFV C510 ECUV1H104ZFV C622 ECEA0JKA221 C513...
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KX-FB423CN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L533 PQLQR2KA20T COIL R552 ERJ3GEYJ470 L534 PQLQR2KA20T COIL R553 ERJ3GEYJ105 L535 PQLQR2KA20T COIL R554 ERJ3GEYJ472 4.7k L536 PQLQR2KA20T COIL R555 PQ4R18XJ220 L537 PQLQR2KA20T...
KX-FB423CN Ref. Part No. Part Name & Description Remarks 12.9. CIS RELAY BOARD PARTS KM79811245C0 BASIC FACSIMILE TECHNIQUE Ref. Part No. Part Name & Description Remarks (for training service technicians) PCB7 PFLP1448MZ-C CIS RELAY BOARD ASS´Y (RTL) Note: (CAPACITORS) Tools and Extension Cords are useful for servicing.
KX-FB423CN 14 FOR THE SCHEMATIC DIAGRAMS Note: 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.