Sharp FO-4700 Service Manual
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Sharp FO-4700 Service Manual

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Illustration: FO-4700
Illustration: FO-47A4
CAUTION
This laser facsimile is a class 1 laser product that complies with 21CFR 1040.10 and 1040.11 of the CDRH or IEC60825-1 standard.
This means that this machine does not produce a hazardous laser radiation. The use of controls, adjustments or performance of
procedures other than those specified herein may result in hazardous radiation exposure.
This laser radiation is not a danger to the skin, but when an exact focusing of the laser beam is achieved on the eyes retina, there is
danger of spot damage to the retina.
The following cautions must be observed to avoid exposure of the laser beam to your eyes at the time of servicing.
1) When a problem in the laser optical unit has occurred, the whole optical unit must be exchanged as a unit, not an individual part.
2) Do not look into the machine with the main switch turned on after removing the toner/developer unit and drum cartridge.
3) Do not look into the laser beam exposure slit of the laser optical unit with the connector connected when removing and installing
the optical system.
4) The cover of Laser Printer Unit contains the safety interlock switch.
Do not defeat the safety interlock by inserting wedges or other items into the switch slot.
Laser Wave Length : 770-810 mm
Laser Pulse Times : 49.2 µs
Laser Output Power : 0.37 mW
Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintain-
ing the safety and performance of the set.
SERVICE MANUAL
OPTION:PAPER CASSETTE
SHARP CORPORATION
1 - 1
No. 00ZF4700THSME
FACSIMILE
FO-4700
MODEL
FO-47A4
MODEL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
FO-4700TH
FO-47A4

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  • Page 1 FO-4700TH FO-47A4 SERVICE MANUAL No. 00ZF4700THSME FACSIMILE FO-4700 MODEL Illustration: FO-4700 OPTION:PAPER CASSETTE FO-47A4 MODEL Illustration: FO-47A4 CAUTION This laser facsimile is a class 1 laser product that complies with 21CFR 1040.10 and 1040.11 of the CDRH or IEC60825-1 standard.

  • Page 2: Table Of Contents

    FO-4700TH FO-47A4 CONTENTS CHAPTER 1. GENERAL DESCRIPTION [1] Specifications ..............1-1 [2] Operation panel .

  • Page 3: Chapter 1. General Description

    Fine /Halftone: 7.7 lines/mm Weight Approx. 12.6kg Super fine: 15.4 lines mm * Based on ITU-T (CCITT) Test Chart #1 at standard resolution in Sharp Automatic document 50 pages max. (A4 paper) special mode, excluding time for protocol signals (i.e., ITU-T phase C feeder time only).

  • Page 4: Operation Panel

    BROADCAST REPORT RELAY key PQRS WXYZ REDIAL Press this key to send a document to another Sharp fax machi- ne and have that machine in turn relay the document to one or SPEAKER STOP START more end receiving machines. LIFE key Press this key, followed by 1, to check the total number of pages printed by the fax machine.
  • Page 5 FO-4700TH FO-47A4 SEARCH DIAL key Press this key to search through your auto dial fax numbers by name. COVER SHEET key Press this key to include a cover sheet when sending a fax. SPACE key Press this key to enter a space when programming a name. SHIFT key Press this key to switch between upper and lower case letters when programming a name.

  • Page 6: Transmittable Documents

    FO-4700TH FO-47A4 4. Cautions on Transmitting Documents [3] Transmittable documents • Documents written in yellow, greenish yellow, or light blue ink cannot 1. Document Sizes be transmitted. • Ink, glue, and correcting fluid on documents must be dry before the width 148 –...

  • Page 7: Installation

    FO-4700TH FO-47A4 [4] Installation 2. Installing the print cartridges (Toner cartridge: FO-47DC/Drum cartridge: FO-47DR) 1. Site selection Follow the steps below to install or replace the toner and drum Take the following points into consideration when selecting a site for this cartridges.
  • Page 8 REPLACE TONER will appear in the display. Printing will no longer be possible. Use the following replacement toner cartridge: Sharp FO-47DC toner cartridge When to replace the drum cartridge When the drum cartridge nears the end of its life, the drum cartridge indicator on the operation panel will blink.
  • Page 9 FO-4700TH FO-47A4 Connecting a telephone (optional) 3. Connections If desired, you can connect a telephone to the TEL. SET Points to keep in mind when setting up socket on the back of the machine. • Do not place the machine in direct sunlight. •...
  • Page 10 FO-4700TH FO-47A4 Make sure your computer and the fax machine are both turned off. 4.Loading Printing Paper POWER You can load up to 250 sheets of A4-size paper (max. 80 g/m Turn in the paper tray. You can load up to 500 sheets of paper in the paper cassette.
  • Page 11 FO-4700TH FO-47A4 5. Clearing a jammed document Loading paper in the paper cassette (Option : FO-47A4) If the original document doesn’t feed properly during transmission or Grasp the hand-hold on the cassette and pull out the cassette until copying, or REMOVE ORIGINAL(S) appears in the display, first try it stops.
  • Page 12 FO-4700TH FO-47A4 6. Clearing jammed printing paper Close the black cover. Reinsert the drum cartridge and then the toner cartridge. If the printing paper jams, PAPER JAM will appear in the display. • Insert the drum cartridge and toner cartridge by aligning the col- Follow the steps below to clear the jam.
  • Page 13 FO-4700TH FO-47A4 7. Instructions for installing the FO-47A4 paper Insert the connector wires into their holder in the edge of the cassette base plate of the unit, and then insert the connector into its socket on the printed circuit board (the white connector wire should be on Important! Be sure to turn off the power and unplug the power the right).

  • Page 14: Quick Reference Guide

    FO-4700TH FO-47A4 [5] Quick reference guide RESOLUTION Note: Steps which are optional are enclosed in a dotted frame: Transmitting documents Load Dial (press Normal Dialling RESOLUTION press SPEAKER document numeric keys) START Wait for Hang up reception tone START Direct Keypad Dial (press Load RESOLUTION...

  • Page 15: Chapter 2. Adjustments

    F101 and F100 to open must also be repaired. If not, F101 and – Digital multi meter F100 will open again. Replacement parts Fig. 1 ICPS10 (Sharp code: VHViCPS10//-1) ICPS18 (Sharp code: VHViCPS18//-1) Output Voltage limits Connector 3. Settings +5V MAIN 4.845V~5.355V...

  • Page 16: Diagnostics And Service Soft Switches

    FO-4700TH FO-47A4 [2] Diagnostics and service soft switches 1. Operating procedure 1-2. Print diagnosis Two kinds of diagnoses are supported. This diagnosis is concerned with the print which is used for production and service support. 1-1. Fax diagnosis Entering the diagnostic mode This diagnosis is concerned with the main body of fax which is used for production and service support.
  • Page 17 FO-4700TH FO-47A4 2. Diagnostic items description • OFF to ON of telephone billing function which is using the image memory is used (Note: In the existing set, the telephone billing code function is specified from OFF to ON when the timer system 2-1.
  • Page 18 FO-4700TH FO-47A4 4) Auto feeder mode 7) Optical adjust mode The auto feed function can be checked by inserting and discharging the Set documents and press the START key for ordinary copying. document. (The distance between pages can be displayed during op- According to key operation, copying can be temporarily stopped.
  • Page 19 FO-4700TH FO-47A4 9) Signal send mode If any chain dial is not in the Rapid number, the Rapid numbers 02 After shift to the mode, press the START key, and the signals will be thru 48 and SPEED key numbers 001 thru 200 are registered in the transmitted in the following sequence.
  • Page 20 FO-4700TH FO-47A4 19) Dial test mode 2-2. Print diagnosis The mode is used to inspect whether dialing is accurate in two kinds of Rapid key 01: Area print mode dial modes . All data which can be dialed in this mode are automatically The effective printing area frame is printed in the specified sheet size.
  • Page 21 FO-4700TH FO-47A4 Rapid key 05: Paper feed aging Rapid key 08: Life all clear The mode is used for aging related to the printing. In this mode, the The mode is used to clear the life counter of the printer of the counter following modes are provided.
  • Page 22 FO-4700TH FO-47A4 Rapid key 11: Life clear mode The mode is used to respectively clear the life counter of the printer and the counter of the auto feeder. For setting, proceed with the following procedure. When the life counter clearing mode is selected, the following will be is displayed.
  • Page 23 FO-4700TH FO-47A4 3. How to make soft switch setting To enter the soft switch mode, make the following key entries in sequence. Press FUNCTION START START S F T S W 1 = 0 0 0 0 0 0 0 0 Press FUNCTION key.
  • Page 24 FO-4700TH FO-47A4 4. Soft switch description • Soft switch Switch setting and function Initial DATA ITEM Remarks setting Recall interval Binary input OPTION No. = 4 (Data No.) Set to 1~15 eg. Recall attempt times is set to 5 times. Recall times Binary input OPTION...
  • Page 25 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Modem speed V.33 V.17 V. 29 V. 27ter 14400 12000 14400 12000 9600 7200 9600 7200 4800 2400 No. 5 No. 6 No. 7 No. 8 Reception speed fixed V.
  • Page 26 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting CED tone signal interval 75ms 500ms 750ms 1000ms No. 1 No. 2 Equalizer freeze Equalizer freeze conditions 7200bps CED detection time 500ms 1000ms Alarm buzzer 3sec 1sec No BEEP No BEEP No.
  • Page 27 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW15 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW16 Cl signal OFF detect enable time (ms) 1200 No. 5 No. 6 No. 7 No. 8 Reserved Reserved Reserved...
  • Page 28 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW21 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW22 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Busy tone detection frequency 520~640Hz 300~600Hz 380~500Hz reserve reserve No.
  • Page 29 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting F.A.S.T (RMS) mode Reserved Verification stamp Summer time (Day light saving) SW27 Key buzzer volume HIGH MIDDLE No. 5 No. 6 Reserved Reserved Speaker volume HIGH HIGH MIDDLE No. 1 No.
  • Page 30 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting The third priority cassette None Tray 1st. Cass. 2nd. Cass. Tray OPTION It is effective No. 1 Other only when No. 2 Combination No.31-1/2 are No. 3 set up of manual SW32 Reserved Reserved...
  • Page 31 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW38 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW39 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW40 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW41...
  • Page 32 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Picture quality priority mode Fine standard OPTION Cut off mode ( When copy mode ) Continue Cut -off OPTION Scanning ratio in memory input Reduce Memory Scanning Overseas communication mode selection function SW45 Reserved Reduce ratio when copy mode...
  • Page 33 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW51 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW52 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW53 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW54...
  • Page 34 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW58 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW59 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW60 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW61...
  • Page 35 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW64 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW65 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW66 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW67...
  • Page 36 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW71 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW72 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW73 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW74...
  • Page 37 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW78 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW79 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW80 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW81...
  • Page 38 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW85 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW86 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW87 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW88...
  • Page 39 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW91 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW92 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW93 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW94...
  • Page 40 FO-4700TH FO-47A4 Switch setting and function Initial DATA ITEM Remarks setting Reserved Reserved Reserved Reserved SW97 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW98 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved SW99 Reserved Reserved Reserved Reserved 2 – 26...
  • Page 41 FO-4700TH FO-47A4 SW4 No. 1 ~ No. 3 Communication results printout • Soft switch function description It is possible to obtain communication results after each transaction. SW1 No. 1 ~ No. 4 Recall interval Normally, the switch is set (No. 1: 0, No. 2: 0, No. 3: 1) so that the com- Choice is made for a recall interval for speed and rapid dial numbers.
  • Page 42 FO-4700TH FO-47A4 SW6 No. 1, No. 2 Reserved SW8 No. 4 ~ No. 8 Signal transmission level Set to "0". Used to control the signal transmission level in the range of –0dB to –31dB. SW6 No. 3 MMR SW9 No. 1, No. 2 CED tone signal interval MMR (Modified MR) selects presence of the compression function.
  • Page 43 FO-4700TH FO-47A4 SW12 No. 6, No. 7 Processing of DIS reception after DIS trans- SW20 No. 1 Reserved mission Set to "1". When receiving , operation in case of DIS reception after DIS transmis- SW20 No. 2 , No. 3 Reserved sion is selected.
  • Page 44 FO-4700TH FO-47A4 SW28 No. 1, No. 2 Speaker volume SW31 No. 3 ~ No. 5 The first priority cassette Speaker volume: To select the first priority cassette. The sound volume of the speaker in the on-hook mode is set. 001: 1st paper feeder (MP-TRAY) SW28 No.
  • Page 45 FO-4700TH FO-47A4 SW34 No. 1 The default resolution for copying SW44 No. 1 Automatic printing of activity report In case of copying without pressing the RESOLUTION key, resolution This soft switch is used to select; whether or not to produce the activity will be super fine.
  • Page 46 FO-4700TH FO-47A4 SW46 No. 5, No. 6 Density adjustment (when Half-tone mode) SW51 No. 1 ~ No. 8 Reserved This is used for density adjustment in the half tone. Setting procedures Set to "0". are the same as SW46 No. 3 and No. 4. SW52 No.
  • Page 47 FO-4700TH FO-47A4 SW63 No. 1 Reserved SW81 No. 1 ~ No. 8 Reserved Set to "0". Set to "0". SW63 No. 2 Reserved SW82 No. 1 ~ No. 8 Reserved Set to "1". Set to "0". SW63 No. 3 Waiting time after dialing SW83 No.

  • Page 48: Troubleshooting

    FO-4700TH FO-47A4 [3] Troubleshooting • 1. Fax troubleshooting Apply line equalization SOFT SWITCH 8-1, 2 Refer to the following actions to troubleshoot any of the problems men- May be used in all cases. tioned in 1-4. • Slow down the transmission speed SOFT SWITCH 6-5, 6, 7, 8 [1] A communication error occurs.

  • Page 49: Error Code Table

    FO-4700TH FO-47A4 [4] Error code table 1. Communication error code table G3 Transmission Code Final received signal Error Condition (Receiver side) Incomplete signal frame Cannot recognize bit stream after flag NSF, DIS Cannot recognize DCS signal by echo etc. Cannot recognize NSS signal (FIF code etc) Disconnects line during reception (carrier missing etc) Disconnects line by fallback Disconnects line during reception of multi page...
  • Page 50 FO-4700TH FO-47A4 M E M O 2 – 36...

  • Page 51: Chapter 3. Mechanical Description

    FO-4700TH FO-47A4 2) Document separation system: CHAPTER 3. MECHANICAL DESCRIPTION Friction + speed reduction ratio + roller backlash separation system Separate rubber plate [1] Mechanical description Transfer plate Last page of document 1. Facsimile block 1-1. Document feed block and diagram Document Front sensor Separate rubber plate...

  • Page 52: Printer Description

    FO-4700TH FO-47A4 [2] Printer description 1. COMPONENTS LAYOUT 2 3 4 1. Scanner Drive Roller 2 2. Operation Panel 3. CIS 4. Scanner Drive Roller 1 5. Scanner Feed Roller 6. Transfer Roller 7. Upper Cover 8. Printer Head 9. Drum Cartridge 10.
  • Page 53 FO-4700TH FO-47A4 3. PRINTER ENGINE ELECTRICAL COMPONENTS LAYOUT PWB-D PWB-B PWB-G PWB-A Fig. 3 4. ELECTRICAL PARTS IDENTIFICATION Symbol Name Function PWB-A Printer PWB unit Communicates with the control PWB and controls all printer operation. PWB-B Power Supply PWB unit Converts the power voltage from AC voltage into DC voltage and supplies that to H1.
  • Page 54 FO-4700TH FO-47A4 5. PAPER PATH Paper can be fed into the printer from the Multi Purpose Tray (250 sheets) or from the Manual Feed Port (1 sheet). Installing the Paper Cassette Unit (500sheets) adds another feeding method. The paper fed by the Paper Take-Up Roller is transported to the Image Transfer Roller, Fusing Roller and then Paper Exit Roller.
  • Page 55 FO-4700TH FO-47A4 8. LASER EXPOSURE Charged Surface PWB-A Laser exposure is the process of creating an invisible static image on the PC Drum by the laser beam emitted from the Print Head Unit. Reflector Mirror In the sub-scanning direction (vertical direction) When the printer receives the PRINT signal, the Polygon Motor and the Printer Motor rotate and the paper is fed into the printer.
  • Page 56 FO-4700TH FO-47A4 10. IMAGE TRANSFER 11-2. Fusing Temperature Control Circuit The Thermistor (TH1) detects the surface temperature of the Upper Fus- 10-1. Overview ing Roller and inputs that analog voltage into IC2-78. Corresponding to Image transfer is the process of transferring the toner image created on this data, the Heater Lamp ON/OFF signal is output from IC2-55, caus- the PC Drum in the developing process to paper.
  • Page 57 FO-4700TH FO-47A4 12. PRINT SEQUENCE Printing is carried out following communication between the engine and controller that determines the timing to be used. A general outline of the printing sequence is described below. Controller Engine /PRINT Initiates the printing command. Prepares for printing - Print head - Feeds a sheet of paper, etc.
  • Page 58 FO-4700TH FO-47A4 13. Timing chart 13-1. Print Starting M2 normal rotation Printing Command 5500 (/PRINT) Polygon Motor(M2) 1st : 1800 Paper Take-Up 2nd : 970 Sensor Switch (PS1) 1st : 200 2nd : 450 Paper Take-Up Solenoid (SL1) Printer Motor (M1) 1650 1910 DC charge...

  • Page 59: Disassembly And Assembly Procedures

    FO-4700TH FO-47A4 [3] Disassembly and assembly procedures • This chapter mainly describes the disassembly procedures. For the assembly procedures, reverse the disassembly procedures. • Easy and simple disassembly/assembly procedures of some parts and units are omitted. For disassembly and assembly of such parts and units, refer to the Parts List.
  • Page 60 FO-4700TH FO-47A4 Parts list (Fig. 2) Rear cabinet Part name Q’ty Main unit Screw (3×10) Rear cabinet Screw (3×10) PWB cover Sheet A HOOK Panel Cable Core Shield Plate HOOK To Core and Panel Cable position is HOOK inside of Shield Plate. Fig.
  • Page 61 FO-4700TH FO-47A4 Parts list (Fig. 3) Shield plate, Right cabinet Part name Q’ty Main unit Screw (3×6) Shield plate Screw (3×10) Right cabinet Sheet Control Printer Liu PWB HOOK HOOK HOOK Fig. 3 3 – 11...
  • Page 62 FO-4700TH FO-47A4 Parts list (Fig. 4) Control PWB unit, Liu PWB unit, Printer PWB unit Part name Q’ty Main unit Screw (3×6) PC I/F bracket Liu PWB unit Printer PWB unit Control PWB unit PWB cushion Sheet A Fig. 4 3 –...
  • Page 63 FO-4700TH FO-47A4 Parts list (Fig. 5) Operation panel unit, Upper cover unit Part name Q’ty Printer unit Screw (3×10) Screw (3×6) Operation panel unit Screw (3×8) Upper cover unit • Must insert the Jig to Printer between upper cover stopper when fixing the screw.
  • Page 64 FO-4700TH FO-47A4 Parts list (Fig. 6) Left front frame, Paper feed tray unit Part name Q’ty Part name Q’ty Filament tape Printer unit Paper feed tray unit Screw (3×6) Screw (3×10) Screw (3×20) Left front frame Tray back guide Screw (3×10) Extension paper feed tray Screw (3×6) Tray width sponge...
  • Page 65 FO-4700TH FO-47A4 Parts list (Fig. 7) Left rear frame, Left bottom frame Part name Q’ty Printer unit Screw (3×6) Left rear frame Left bottom frame Foot Fig. 7 3 – 15...
  • Page 66 FO-4700TH FO-47A4 Parts list (Fig. 8) Left cabinet unit, Lifting plate unit Part name Q’ty Part name Q’ty Printer unit Holder Holder Left cabinet unit Regulating plate Tapping screw Lifting plate unit Guide Screw (3×6) Sheet Paper out sensor cable Lifting plate Idler gear Paper out sensor...
  • Page 67 FO-4700TH FO-47A4 Parts list (Fig. 9) Power supply PWB unit Part name Q’ty Part name Q’ty Printer unit Power supply unit Screw (2.3×8) Screw (4×6) Safety switch cable Screw (3×6) Safety switch Power supply cable Screw (3×6) Power supply PWB unit Cable Wire holder Power supply bracket...
  • Page 68 FO-4700TH FO-47A4 Parts list (Fig. 10) Scanner frame unit (1/2) Part name Q’ty Scanner frame unit Operation panel unit Screw (3×10) Document guide under Fig. 10 3 – 18...
  • Page 69 FO-4700TH FO-47A4 Scanner frame unit (2/2) Parts list (Fig. 11) Part name Q’ty Part name Q’ty Part name Q’ty Document sensor switch Scanner frame unit Stopper spring Scanner bearing 2 34 Transfer sensor switch Transfer idler gear Drive gear (49z) Screw (3×10) 35 Front sensor switch 36 Document sensor cable...
  • Page 70 FO-4700TH FO-47A4 Document guide upper unit, Operation panel unit Parts list (Fig. 12) Part name Q’ty Part name Q’ty Part name Q’ty Operation panel unit Pinch roller 27 Operation panel PWB unit Screw (3×10) Separate plate 28 Change key Document guide upper unit Separate gum 29 Direct key Release lever...
  • Page 71 FO-4700TH FO-47A4 Upper cover Parts list (Fig. 13) Part name Q’ty Part name Q’ty Upper cover 12 Idler gear (32z) Screw (3×10) 13 Upper cover roller Upper cover guide under 14 Upper cover gear bracket Upper cover lock button 15 Gear bracket spring Upper cover stopper 16 Paper exit guide upper Reflection sheet...
  • Page 72 FO-4700TH FO-47A4 Parts list (Fig. 14) Wire treatment Part name Q’ty Band Core Front / Let out / Doc sensor cable Panel cable Tape Speaker cable Stamp cable CIS cable Motor cable Control PWB CNPW Tape Printer PWB 3 times Control PWB CN10 Panel cable...
  • Page 73 FO-4700TH FO-47A4 Rear cover, Fusing unit (1/2) Replace the Fusing unit about every 50,000 sheets of print. 1. Remove the Rear cover. (6 screws) Fusing unit 2. Remove the Fusing unit. (4 screws, 3 connectors) NOTE: • Once the Fusing unit is removed, use the following instructions Spacer to make repairs when image quality problems or parts failure occurs.
  • Page 74 FO-4700TH FO-47A4 Fusing unit (2/2) 1. Remove fusing drive gear from the Heater roller. 2. Remove the Heater roller from the Fusing unit. (1) Slide the roller to the right. (2) Swing out the left end. (3) Slide out the right end. NOTE: •...
  • Page 75 FO-4700TH FO-47A4 Print head unit 1. Unplug the one connector from the PWB and remove the wiring from the cord holders. 2. Remove the Print head unit. (5 screws) Print head unit Cord holder Cord holder Fig. 17 High voltage PWB unit (HV1) 1.
  • Page 76 FO-4700TH FO-47A4 Paper take-up ass’y, Paper take-up sensor (PS1) 1. Turn the machine over on its back side and then remove the Paper take-up ass’y. (5 screws, 1 connector) Paper take-up assy Top view When mouting the Paper take-up assy, make sure the lower left post of the To remove, pull the right side of the Paper assy is anchored in the...
  • Page 77 FO-4700TH FO-47A4 Paper empty sensor (PE1) 1. Remove the Paper take-up roller cover. NOTE: • When attaching the cover, hook the spring of the cover as shown Paper empty sensor in Fig. 1. (PE1) 2. Remove the Paper empty sensor (PE1) and unplug the connector. Fig.1 Paper take-up roller cover Fig.
  • Page 78 FO-4700TH FO-47A4 Parts list (Fig. 22) Cassette unit, 2nd. cassette PWB unit Part name Q’ty 2nd. paper feed ass’y Cassette unit Screw (3×10) PWB cover Screw (3×6) Lever bracket 2nd. paper sensor lever Screw (3×10) Cassette connect cable 2nd. cassette PWB unit Detail view of apply Wire treatment Please fixes this core and a band...
  • Page 79 FO-4700TH FO-47A4 Parts list (Fig. 23) 2nd. drive unit Part name Q’ty 2nd. paper feed ass’y Docking gear 2nd. clutch spring Paper feed clutch gear Roller pin 2nd. PU roller 2nd. drive bearing 2nd. drive bearing Paper drive gear 2nd. drive roller Screw (3×6) Screw (3×10) 2nd.
  • Page 80 FO-4700TH FO-47A4 Parts list (Fig. 24) 2nd. top plate Part name Q’ty 2nd. paper feed ass’y Screw (3×6) Screw (3×10) Slide frame plate Slide frame cover Screw (3×10) 2nd. top plate 2nd. guide upper 2nd. drive bearing Fig. 24 3 – 30...
  • Page 81 FO-4700TH FO-47A4 Parts list (Fig. 25) 2nd. right cabinet unit, 2nd. rear cabinet Part name Q’ty 2nd. paper feed ass’y Cassette sensor cover Cassette size sensor 2nd. paper size cable Screw (3×6) Screw (3×10) 2nd. rear cabinet 2nd. right cabinet unit Fig.
  • Page 82 FO-4700TH FO-47A4 2nd. bottom plate Parts list (Fig. 26) Part name Q’ty 2nd. bottom plate Screw (3×6) 2nd. cassette rail left Cassette lock spring Cassette lock piece 2nd. cassette rail right Foot Screw (3×8) Separate nail rear cap Fig. 26 3 –...
  • Page 83 FO-4700TH FO-47A4 Parts list (Fig. 27) 2nd. right cabinet Part name Q’ty 2nd. right cabinet 2nd. release shaft 2nd. release lever 2nd. lever joint 2 2nd. release lever spring 2nd. pinch roller shaft Pinch roller 2nd. lever joint 1 2nd. pinch roller spring Fig.
  • Page 84 FO-4700TH FO-47A4 Parts list (Fig. 29) Cassette unit (1/2) Part name Q’ty Cassette unit Cassette push up plate Cork sheet Cassette push setting label Push up plate spring Paper limit label 2 Cassette blind sheet left Cassette blind sheet right Fig.
  • Page 85 FO-4700TH FO-47A4 Parts list (Fig. 30) Cassette unit (2/2) Part name Q’ty Cassette unit Screw (3×10) Cassette width guide Separate nail front Cassette width sponge A Screw (3×8) Separate nail rear Separate nail rear cap Fig. 30 3 – 35...
  • Page 86 FO-4700TH FO-47A4 Parts list (Fig. 31) Cassette case Part name Q’ty Cassette case Screw (3×10) Ext. cassette case Cassette back sponge Screw (3×8) Lock down piece Lock down spring Cassette width sponge C Cassette width sponge B Fig. 31 3 – 36...

  • Page 87: How To Install The Verification Stamp (Fo-45Vs)

    FO-4700TH FO-47A4 [4] How to install the verification stamp (FO-45VS) 1. Open the operation panel unit. 2. Remove the screw (A1) x 1 pc. and open the operation panel more widely. Operation panel unit Open Screw (A1) x 1 Document guide stopper 3.
  • Page 88 FO-4700TH FO-47A4 6. Wire treatment Stamp cable must be passed through six ribs as shown in fig.1. Connect the stamp cable to CNSTP (2 pin) of con- trol PWB Scanner feed shaft Front sensor Doc sensor Scanner Let out sensor frame Front / Let out / Doc sensor cable...

  • Page 89: Chapter 4. Diagrams

    FO-4700TH FO-47A4 CHAPTER 4. DIAGRAMS [1] Block diagram 4 – 1...

  • Page 90: Wiring Diagram

    FO-4700TH FO-47A4 [2] Wiring diagram 4 – 2...

  • Page 91: Point-To-Point Diagram And Connector Signal Name

    FO-4700TH FO-47A4 [3] Point- to-point diagram and connector signal name (1) 4 – 3...
  • Page 92 FO-4700TH FO-47A4 Point- to-point diagram and connector signal name (2) 4 – 4...

  • Page 93: Chapter 5. Circuit Description

    FO-4700TH FO-47A4 CHAPTER 5. CIRCUIT DESCRIPTION 2. Description of each block (1) Main control block [1] Circuit description The main control block uses RISC microprocessor HD6437021 as CPU, being composed of ROM (2 MByte) and DRAM (2 MByte). DRAM uses 1 MByte out of 2 MByte as an image memory. (Refer to the 1.
  • Page 94 FO-4700TH FO-47A4 SH7021 (IC27) Terminal descriptions Terminal No. Classification Code Name Function (TFP-100B) Power 13, 38, 63, Power Connect to the power supply. 73, 80, 88 Connect Vcc terminals to the power units of all systems. If any open terminal is present, it will not operate 4,15,24,32, Ground Connect to the ground.
  • Page 95 FO-4700TH FO-47A4 SH7021 (IC27) Terminal descriptions Terminal No. Classification Code Name Function (TFP-100B) Bus control WAIT Wait It is input to insert Tw into the bus cycle during access to the external space. Low address strobe Timing signal of low address strobe of DRAM CASH High-order column Timing signal of column address strobe of DRAM...
  • Page 96 FO-4700TH FO-47A4 The above functions are controlled by getting an access to the inter- (2) Image memory block face memory in the modem through the data bus from CPU (IC27) of This block is composed of 2 MByte DRAM memory and 256 KByte SRAM. the control PWB.
  • Page 97 FO-4700TH FO-47A4 (4) Image signal process block AMPLIFIER VIDEO CIRCUIT SIGNAL LC82103 CLOCK (IC6) VREF+ VREF– Fig. 2 The CIS is driven by the LSI (LC82103), and the output video signal from the CIS is input into the LC82103 through the amplifying circuit. The ADC and buffer are provided in the LC82103, and the digital image processing is performed.
  • Page 98 FO-4700TH FO-47A4 LC82103 (IC6) Type INPUT BIDIRECTION NC NOT CONNECT OUTPUT POWER Name Function Name Function AVDD Analog system power supply pin. DALRH D/A converter high reference voltage pin for A/D converter low reference voltage. CPU interface data bus pin ATAPL D/A converter monitor signal output pin D7 is the MSB pin, and D0 is the...
  • Page 99 FO-4700TH FO-47A4 LZ9FJ59 (IC17) Terminal list Name Function Name Function IO2M RTCDT RTC data input/output IO2M System data input/output RTCCK RTC data transfer clock IO2M System data input/output RTCCE RTC chip select IO2M System data input/output RTCIO RTC inout/output control System address input GAIN Output port...
  • Page 100 FO-4700TH FO-47A4 LZ9FJ59 (IC17) Terminal list Name Function Name Function – Ground XD6004RD Read signal to D6004 (PC I/F) XEXCS Chip select (spare) XD6004WR Write signal to D6004 (PC I/F) XCDCINT Interrupt request signal from CODEC D6004ALE Address strobe signal to D6004 (PC I/F) XCDCDRQ DMA request signal (CODEC) –...
  • Page 101 FO-4700TH FO-47A4 (8) Gate array (B) block LR38292 (IC10) Terminal descriptions Name Function The block is composed of the gate array (B) and SRAM (2 KByte). Power supply 1) LR38292(IC10) ... pin-160, QFP (gate array B) The device has the following functions. Printing data process Ground The image data of the page memory for printing is converted into...
  • Page 102 FO-4700TH FO-47A4 LR38292 (IC10) Terminal descriptions Name Function Name Function MAENB Address enable signal of image bus of ETBSYB Status sending signal of printer unit HD813201F CTBSYB Command sending signal to printer unit CK16M 16 MHz clock input PRINTB Printing start/continuation signal to printer RDCDC Register read signal (active H) of unit...
  • Page 103 FO-4700TH FO-47A4 (9) CODEC block 2) HD74LS374 (IC18) ... pin-20, SOP The data hold time during writing from main CPU to HD813201F is as- This block is composed of CODEC, LS374 and LS244 in order to de- sured. modulate the contracted image data of the draft read with the scanner and the letter image transmitted in the DMA mode from the system 3) HD74LS244 (IC20) ...
  • Page 104 FO-4700TH FO-47A4 HD813201F (IC12) Terminal descriptions Code Terminal No. Function 68/80 If this terminal is at "low" level, it indicates that MPU of system 88 is connected to IDP201. "High" level indicates that MPU of system 80 is connected. Addresses 0 thru 2 (address terminals). It is connected to the low-order 3 bits of the system address bus, and MPU is used to get an access to the internal register of IDP201.
  • Page 105 FO-4700TH FO-47A4 HD813201F (IC12) Terminal descriptions Code Terminal No. Function Memory Address Strobe (Memory address strobe terminal). When MAS becomes "high" level, it indicates that address is output to MA/MD0 thru MA/MD15 and MA16 thru MA21. Three-state output Upper Data Strobe (high-order data strobe terminal). When UDS becomes "low" level, it indicates that IDP201 uses the high-order byte of the image bus.
  • Page 106 FO-4700TH FO-47A4 HD813201F (IC12) Terminal descriptions Code Terminal No. Function DMA Terminal Count (DMA terminal count terminal). When DTC output is turned to "high", it indicates that DMA transfer of the setting line part is ended. READY Image memory or I/O device read. When READY is turned to "high" during writing, it indicates that the image memory or I/O device is ready for transmitting/receiving the data.
  • Page 107 FO-4700TH FO-47A4 (11) Driver block Sending motor driver (IC7: LB1845) ---- 28-pin DIP This IC driver at the sending motor at the constant current with the bipo- lar, chopper system. VCC 28 OUTPUT OUTPUT OUTPUT OUTPUT BLOCK BLOCK BLOCK BLOCK –...
  • Page 108 FO-4700TH FO-47A4 [Pin Functions] Pin name Pin No. Pin Description 1, 14 Output stage power-supply voltage SENSE1 Set current detection pins. SENSE2 Connect these pins, fed back through noise filters, to E1, and E2. Current control pins by connecting between this pin and GND. DGND 4,11 Internal diode anode connection...

  • Page 109: Circuit Description Of Liu Pwb

    FO-4700TH FO-47A4 [3] Circuit description of LIU PWB (1) LIU block operational description 1) Block diagram LIU PWB CONTROL PWB /EXHS ACTIVE CHOKE TXOUT TXOUT SURGE CURRENT VREF PROTECTION SENSOR LINE MODEM (R144AFXL) RXIN RXIN EXTSIG CI DETECTOIN EXT.TEL GAINC DPMUTE DPON (SH7021)
  • Page 110 FO-4700TH FO-47A4 [SIgnals for status recognition according to input signals] 3. Dial pulse generation ciruit The pulse dial generation circuit comprises the photo-coupler PC2 Signal Name Function and PC3, polarity guard REC1. Incoming call (CI) detection signal The dial pulse turns on CML, controls the base current of PC2 and PC3, and supplying the DP and DPMUTE signal to the photo-coupler H: The handset or external telephone is in the PC2 and PC3, and generates the DP and DPMUTE signal by making...
  • Page 111 FO-4700TH FO-47A4 (Example: Fax signal send) LIU PWB CONTROL PWB /EXHS ACTIVE CHOKE TXOUT TXOUT SURGE CURRENT PROTECTION SENSOR VREF LINE MODEM (R144AFXL) RXIN RXIN EXTSIG CI DETECTOIN EXT.TEL GAINC DPMUTE DPON (SH7021) E-RLY MPXB SPMUTE BZCONT MPXC PA11 TELMUTE2 DPON XEXHS BZOUT...

  • Page 112: Circuit Description Of Operation Pwb

    FO-4700TH FO-47A4 [4] Circuit description of operation PWB [5] Circuit description of power supply PWB In the AC power supply unit, in order to gain DC voltage(+24V/+5V), AC 1. Block diagram input is processed directly by rectification smoothing; the voltage is trans- formed through a transformer by a switching method and, after that, the PANEL PWB AC input is processed again by rectification smoothing.

  • Page 113: Circuit Description Of Rs232C I/F Pwb (Option:fo-47If)

    FO-4700TH FO-47A4 4. Inverter circuit 7. Over-current prevention circuit In the RCC system, FET, which is connected to a converter transformer Any over-current of FET is detected and a signal is sent to a control in series, performs an ON/OFF switching operation and the energy stored circuit to drop the secondary output.

  • Page 114: Chapter 6. Circuit Schematics And Parts Layout

    FO-4700TH FO-47A4 CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT C180 R414 C228 0.1 C234 0.1 R418 C237 0.1 C241 0.1 6 – 1...
  • Page 115 FO-4700TH FO-47A4 6 – 2...
  • Page 116 FO-4700TH FO-47A4 XTLO +5VD2 XTLI 0VD2 EYEY TP25 0VD2 EYEX TP24 0VD2 EYECLKX 0VD2 SYNCIN2 TP23 0VD2 SYNCIN1 0VD2 EYESYNC 0VD2 ECLKIN1 TP22 0VD2 EYECLK 0VD2 BYPASS 0VD2 0VD1 TXLOSS1 0VD1 TXLOSS2 TXLOSS3 +5VD1 +5VD1 GP11 R276 10K GP21 GP02 R277 10K GP20 GP03...
  • Page 117 FO-4700TH FO-47A4 1/50 4.7/50 6 – 4...
  • Page 118 FO-4700TH FO-47A4 R127 R130 R134 0 R135 R132 C120 6 – 5...
  • Page 119 FO-4700TH FO-47A4 R409 10K R250 4.7K R246 10K R247 10K R222 10K R405 C152 C186 6 – 6...
  • Page 120 FO-4700TH FO-47A4 C188 C187 6 – 7...
  • Page 121 FO-4700TH FO-47A4 R160 3.3K R213 3.3K R212 3.3K R211 3.3K R161 1K C136 C172 R215 C138 0.1 C137 0.1 C174 0.1 C135 0.1 /RSTCDC (9-3D) RSTCDCB LMD0 TP122 /RDCDC LMD0 RDCDCB (9-2A)(9-5D) LMD1 TP115 RDCDC LMD1 RDCDC (9-4A) LMD2 /CLKF R209 (9-4A) LMD2...
  • Page 122 FO-4700TH FO-47A4 6 – 9...
  • Page 123 FO-4700TH FO-47A4 C133 0.1 C109 0.1 6 – 10...
  • Page 124 FO-4700TH FO-47A4 CNPW R111 6 – 11...
  • Page 125 FO-4700TH FO-47A4 6 – 12...
  • Page 126 FO-4700TH FO-47A4 N.M. D144 D145 HRW0502A D146 MD10 N.M. MD11 MD12 MD13 MD14 MD15 MA14 D127 D104 HRW0502A HRW0502A MA15 D124 D107 HRW0502A HRW0502A MA16 D128 D103 D138 HRW0502A HRW0502A HRW0502A MA17 D133 D121 D115 HRW0502A HRW0502A HRW0502A MA18 MA10 D106 D125 D112...
  • Page 127 FO-4700TH FO-47A4 C411 CA16-2 CA16-4 CA1-4 CA1-3 CA1-2 CA1-1 CA15-4 CA15-3 CA15-2 CA15-1 CA16-3 CA16-1 CNLIU CNSEN CNSTP CNCIS CNTXM CNSP 6 – 14...
  • Page 128 FO-4700TH FO-47A4 CA8-3 CA9-2 CA9-4 CA10-2 CA7-1 CA7-3 CA8-1 CA8-4 CA6-3 CA6-1 CA14-2 CA14-4 CA13-4 CA13-2 CA12-2 CA12-4 CA11-2 CA11-4 (6-5F) CA9-1 CA9-3 CA10-1 CA10-3 CA7-2 CA7-4 CA8-2 CA6-4 CA6-2 CA14-1 CA14-3 CA13-1 CA13-3 CA12-1 CA12-3 CA11-1 CA11-3 6 – 15...
  • Page 129 FO-4700TH FO-47A4 C206 C207 C208 C212 C211 C252 C251 C249 C250 C247 C246 6 – 16...
  • Page 130 FO-4700TH FO-47A4 Control PWB parts layout (Top side) CNSEN CNSP[RED] CNPCIF IC38 IC41 IC13 IC35 IC15 RA10 IC21 CA11 CA12 IC36 CA8 CA7 CA13 CA10 CA9 CA14 CNOP 6 – 17...
  • Page 131 FO-4700TH FO-47A4 Control PWB parts layout (Bottom side) R100 C101 C194 R410 R223 C253 C195 R330 R224 R336 C119 C100 R225 R337 R435 R418 IC100 R235 R338 R105 R339 R226 R407 D100 R340 1 39 C216 R227 R103 L102 R228 R104 R222 R341...
  • Page 132 FO-4700TH FO-47A4 C117 0.033 MTZJ30B C114 0.01 JP15 TNR07G101K C113 JP108 RA501P-V6Y2 DSS-301L JP104 JP106 0(1/8W) JP101 JP102 0(1/8W) 6 – 19...
  • Page 133 FO-4700TH FO-47A4 PC1(2/2) 6 – 20...
  • Page 134 FO-4700TH FO-47A4 LIU PWB parts layout (Top side) 6 – 21...
  • Page 135 FO-4700TH FO-47A4 LIU PWB parts layout (Bottom side) 6 – 22...
  • Page 136 FO-4700TH FO-47A4 R127 47/35 R100 R112 N.M. R101 (1/2W) 0.68(1/2W) C115 820P 6 – 23...
  • Page 137 FO-4700TH FO-47A4 6 – 24...
  • Page 138 FO-4700TH FO-47A4 Printer PWB parts layout (Top side) 6 – 25...
  • Page 139 FO-4700TH FO-47A4 Printer PWB parts layout (Bottom side) 6 – 26...
  • Page 140 FO-4700TH FO-47A4 SCRI TF321S 1K(2W) FMB-24M HZS15-3 NTH9D160LA SDT-SS-124DM ENC471D-10A 6 – 27...
  • Page 141 FO-4700TH FO-47A4 Power supply PWB parts layout 6 – 28...
  • Page 142 FO-4700TH FO-47A4 6 – 29...
  • Page 143 FO-4700TH FO-47A4 22/16 LED5 (LINE) LED7 (PAPER) LED8 (TONER) DTC114ES DTC114ES LED9 (DRUM) 22/16 LED10 (SERVICE) LED1 (H-TONE) LED2 (S-FINE) LED3 (FINE) LED4 (STD) LED6 (IN-USE) 150 x 7 6 – 30...
  • Page 144 FO-4700TH FO-47A4 +24V 1 MG 2 T MON 7 +5V 11 T VR 9 – T REM 8 C208 C209 R117 D103 HV C H/L 10 C REM 4 C MON 3 B MON 6 B VR 5 – 6 – 31...
  • Page 145 FO-4700TH FO-47A4 High voltage PWB parts layout Note: Since the parts of this PWB cannot be supplied, change it as a unit. 6 – 32...
  • Page 146 FO-4700TH FO-47A4 6 – 33...
  • Page 147 FO-4700TH FO-47A4 6 – 34...
  • Page 148 FO-4700TH FO-47A4 Option:Paper cassette PWB parts layout (FO-47A4) 6 – 35...

  • Page 149: Chapter 7. Operation Flowchart

    FO-4700TH FO-47A4 CHAPTER 7. OPERATION FLOWCHART [1] Protocol Receive side Transmitter side G3 communication (Document inserted into document sensor during standby) To recording position Document inserted to the reading position (DCS) (DCS) 1st page Next page insert command Cut line printed Cut line printed Recording paper ejected Document ejected...

  • Page 150: Power On Sequence

    FO-4700TH FO-47A4 [2] Power on sequence START CPU initialized D-RAM initialized Gate array initialized PC I/F initialized When option board is connected. START+STOP key ? “MEMORY CLEAR” “EXECUTE ?” display COPY key ? 1 key ? “PLEASE WAIT A MOMENT” “PLEASE WAIT A MOMENT”...

  • Page 151: Chapter 8. Others

    FO-4700TH FO-47A4 CHAPTER 8. OTHERS [1] Service Tools 1. List PRICE PARTS CODE DESCRIPTION Q’TY RANK CPWBX3035SC01 Extension board unit (Control-EX) / (Printer-EX) and cables CONTROL EXTENSION BOARD N.M. N.M. PRINTER EXTENSION BOARD N.M. 8 – 1...
  • Page 152 FO-4700TH FO-47A4 2. Description Ref No. Cable parts code Description CNPRT QCNW – 4559SCZZ EX. Cable, 32-32 PIN 2-1. Extension board unit CNTXM QCNW – 4973SCZZ EX. Cable, 4-4 PIN [For inspection of control PWB, LIU PWB] CNCIS QCNW – 4974SCZZ EX.
  • Page 153 FO-4700TH FO-47A4 [For inspection of printer PWB] Ref No. Cable parts code Description 1) Remove the rear cabinet and shield plate from the unit, and remove CNPRT QCNW – 4559SCZZ EX. Cable, 32-32 PIN the printer PWB . QCNW – 4981SCZZ EX.
  • Page 154 FO-4700TH FO-47A4 [For inspection of PC-IF PWB (FO-47IF)] Ref No. Cable parts code Description 1) Connect all cables to the connectors of extension boards and check QCNW – 4994SCZZ EX. Cable, 1-1 PIN PWBs as shown in Fig.1 on page 8-2 The connector (CNPCIF) of check PC-IF PWB must be inserted into the check control PWB.
  • Page 155 FO-4700TH FO-47A4 [For inspection of Paper cassette PWB (FO-47A4)] Ref No. Cable parts code Description 1) Connect all cables to the connectors of extension boards and check CN11 QCNW – 4990SCZZ EX. Cable, 13-13 PIN PWB as shown in Fig.2 on page 8-3. 2) Connect the cable from the paper cassette to the connector (CN11A) of the extension board (Printer-EX).
  • Page 156 FO-4700TH FO-47A4 PRICE PARTS CODE DESCRIPTION REF NO. Q’TY RANK QCNCM2525SC3J CONNECTOR 30pin , BLACK CNPRTA QCNCM2524SC3B CONNECTOR 32pin , BLACK CNPRTB QCNCM7014SC0D CONNECTOR 4pin , WHITE CNTXMA, CNTXMB QCNCM7014SC1J CONNECTOR 10pin , WHITE CNCISA, CNCISB QCNCM2401SC0B CONNECTOR 2pin , RED CNSPA, CNSPB QCNCM7014SC0H CONNECTOR 8pin , WHITE...

  • Page 157: Ic Signal Name

    FO-4700TH FO-47A4 [2] IC signal name CONTROL PWB UNIT IC4: VHiM27C16010F(M27C160-100F1) Signal names Name Function Address Inputs A0~A19 Q0~Q7 Data Outputs Q8~Q14 Data Outputs Q15A-1 Data Output/Address Input Chip Enable M27C160 Output Enable BYTEVPP Byte Mode/Program Supply BYTEVPP Q15-A-1 Supply Voltage Ground IC8:VHiHD74HC157F(74HC157) IC9,16:VHi1M16E//J-6 (HY5118164 or MSM5118165)
  • Page 158 FO-4700TH FO-47A4 IC15: VHiHD74LV08T1(74LV08A) IC18: VHiHD74LS374F(HD74LS374) Output Control IC20: VHiHD74LS244F(HD74LS244) Clock IC30: VHiSM8578BV-1(SM8578BV) IC19: VHiHD74HC74FM(74HC74) INTN DATA 8 5 7 8 B IC35: VHi74VHC393FT(74VHC393) OUTPUTS 2A 2CLEAR 2QA INPUT OUTPUT 1A 1CLEAR 1QA NO Change OUTPUTS H:High L:Low X:H or L 8 –...
  • Page 159 FO-4700TH FO-47A4 PRINTER PWB UNIT IC1,IC4: VHiTEA3718SDP(TEA3718SDP) OUTPUT B SENSE RESISTOR PULSE TIME OUTPUT A Vs(A) Vs(B) REFERENCE INPUT1 COMPARATOR INPUT PHASE INPUT0 REFERENCE PHASE VS(A) OUTA OUTB VS(B) TRIGGER DELAY – – – CURRENT MONO SENSOR STABLE T2˚C COMPARATOR INPUT PULSE TIME SENSE 8 –...
  • Page 160 FO-4700TH FO-47A4 IC2: VHiM38073M/-1(M38073E4FP) CONVERTER 1 CONVERTER 2 CONVERTER CONVERTER 3 CONVERTER 4 8 – 10...
  • Page 161 FO-4700TH FO-47A4 IC2: VHiM38073M/-1(M38073E4FP) Terminal description Terminal name Name Function Function except for the port VCC, VSS Power supply input VCC 2.7V~5.5V, VSS 0V input. CMPVCC Analog comparator Power supply input terminal of analog comparator. power supply input CNVSS CNVss It is the terminal which controls the movement mode of the chip.
  • Page 162 FO-4700TH FO-47A4 IC2: VHiM38073M/-1(M38073E4FP) Terminal description Terminal name Name Function Function except for the port P56/DA1, Input/output port P5 8bit input/output port which has the similar D-A converter output P57/DA2 function of P0. Output form is CMOS3 state in terminal the CMOS input level.

  • Page 163: Parts Guide

    FO-4700TH FO-47A4 PARTS GUIDE FO-4700 MODEL FO-47A4 MODEL CONTENTS Exterior, etc. (1) Option:Paper cassette (1) Exterior, etc. (2) Option:Paper cassette (2) Exterior, etc. (3) Option: Paper cassette packing material & Accessories Operation panel unit Control PWB unit Document guide upper unit...
  • Page 164 FO-4700TH FO-47A4 [1] Exterior, etc. (1) Upper cover unit Operation panel unit Printer unit – 1 –...
  • Page 165 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [1] Exterior etc.(1) CCNW-4955XH01 Speaker ass’y DCEKC981MXHZZ Control PWB unit(Within ROM) DCEKC470BXH01 Printer PWB unit DCEKL200CXH07 LIU PWB unit GCABA2327XHSA Front cabinet GCABB2328XHSB Rear cabinet GCABC2329XHSA Inner front cabinet GCABD2330XHSA Right cabinet GCABE2331XHSA Left cabinet...

  • Page 166: Document Guide Upper Unit

    FO-4700TH FO-47A4 [2] Exterior, etc. (2) [3] Exterior, etc. (3) Document guide upper unit Drive unit Scanner frame unit – 3 –...
  • Page 167 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [2] Exterior etc.(2) CROLP2320XH01 Pinch roller ass’y GCOVA2405XHSA Upper cover JBTN-2255XHSA Upper cover lock button LPLTM3019XHZZ Upper cover stopper MLEVP2305XHZZ DRUM detect lever MSPRC3149XHZZ Hopper spring MSPRC3090XHZZ Press spring MSPRC3100XHZZ Gear bracket spring MSPRD3091XHZZ DRUM detect lever spring...
  • Page 168 FO-4700TH FO-47A4 [4] Operation panel unit [5] Document guide upper unit – 5 –...
  • Page 169 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [4] Operation panel unit DCEKP496AXH03 Operation panel PWB unit GCASP2107XHZB Panel case JBTN-2184XHZZ 10 key JBTN-2185XHZZ Direct key JBTN-2187XHZZ Mode key JBTN-2189XHZC Change key JBTN-2253XHSA Start key JBTN-2254XHSA Stop key LPLTP2823XHZZ Page plate PCUSS2097XHZZ...
  • Page 170 FO-4700TH FO-47A4 [6] Drive unit [7] Scanner frame unit (FO-45VS) – 7 –...
  • Page 171 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [6] Drive unit LHLDW2183SCZZ Clamp LPLTM3013XHZZ Drive system plate NGERH2464XHZZ RS gear(18/60Z) NGERH2465XHZZ RS gear(50/87Z) RMOTZ2146XHZZ Transfer motor XHBSD30P06000 Screw(3x6) [7] Scanner frame unit CBSHP2079SC02 Scanner feed clutch LBSHP2113XHZZ DR bearing LFRM-2201XHZZ Scanner frame LPLTM3012XHZZ...

  • Page 172: Frames

    FO-4700TH FO-47A4 [8] Frames PWB-G [9] Paper take up section – 9 –...
  • Page 173 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [8] Frames 0KW4122207102 Reinforce plate 0KW4122681702 Wire harness assy 0KW4109302202 Torsion spring 0KW4122010202 Toner empty PWB unit [PWB-G] 0KW4109302005 Guide 0KW4122207801 Bracket 0KW4122610101 Fan motor [M3] 0KW0993204501 Screw,special 0KW4122207902 Reinforce plate 0KW4122235001 Rubber foot 0KW4122207001...

  • Page 174: Fusing Unit

    FO-4700TH FO-47A4 [10] Fusing unit – 11 –...
  • Page 175 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [10] Fusing unit 0KW4122680302 Wire harness assy 0KW9335141031 Paper exit sensor [PS3] 0KW4109551701 Pressure spring 0KW4109553001 Stopper 0KW4109551801 Actuator 0KW4109550503 Guide 0KW4110551101 Bushing 0KW4110553501 Holder 0KW4110553601 Roll 0KW4109550201 Fusing roller 0KW4109551201 Gear(36T) 0KW4109552101...

  • Page 176: Drive/Transfer Section

    FO-4700TH FO-47A4 [11] Drive/Transfer section 13 12 37 38 – 13 –...
  • Page 177 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [11] Drive/Transfer section 0KW4109201301 Torsion spring 0KW4109202201 Label(Right) 0KW4109075605 Frame ass’y 0KW4109201502 Rubber strip 0KW4122030102 Drive unit 0KW4109202301 Label(Left) 0KW4109250301 Gear(40T) 0KW4122610501 Printer motor [M1] 0KW4109250501 Gear(18/50T) 0KW4109250101 Gear(20/44T) 0KW4109250201 Gear(20/52T) 0KW4109250701 Gear(24/30T)

  • Page 178: Packing Material & Accessories

    FO-4700TH FO47A4 [12] Packing material & Accessories Setting Position Before Packing Drum Name Setting Position cartridge Toner FO-47DR cartridge Power SW FO-47ND Hopper Guide Setting to Wide Side Tape Tape Page plate Normal Position Ext Paper Feed Tray Tray Back Guide Tape Tray Width Guide Tape...
  • Page 179 FO-4700TH FO-47A4 [13] Option:Paper cassette (1) PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [13] Option:Paper cassette(FO-47A4)(1) GCASP2108XHSA Cassette case GCASP2109XHSA Ext. cassette case LPLTM3022XHZZ Cassette push up plate MSPRC3092XHZZ Push up plate spring MSPRD3125XHZZ Lock down spring PCAPH2032XHZZ Separate nail rear cap PGIDM2549XHZZ Cassette width guide PSEL-2017XHZZ...

  • Page 180: Option:paper Cassette

    FO-4700TH FO-47A4 [14] Option:Paper cassette (2) – 17 –...
  • Page 181 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [14] Option:Paper cassette(FO-47A4)(2) LPLTM3024XHZZ 2nd. bottom plate CROLR2423XH01 2nd. PU roller DCEKZ472BXH01 2nd. cassette PWB unit GCABG2333XHSA 2nd. right cabinet GCABH2334XHSA 2nd. rear cabinet GCOVA2407XHSA Slide frame cover GCOVA2408XHSA PWB cover LANGF2825XHZZ Lever bracket LBSHP2109XHZZ...

  • Page 182: Option:paper Cassette Packing Material & Accessories

    FO-4700TH FO-47A4 [15] Option:Paper cassette packing material & Accessories Tape Tape Tape Tape Tape - 4 7 - 4 7 Tape PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [15] Option:Paper cassette Packing material & Accessories GCOVA2406XHSA Left cover SPAKA120BXHZZ Packing add., right SPAKA121BXHZZ Packing add., left...

  • Page 183: Control Pwb Unit

    FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [16] Control PWB unit UBATL2071XHZZ Battery [BT1] VCEAGA1HW107M Capacitor(50WV 100µF) [C2] VCEAGA1CW476M Capacitor(16WV 47µF) [C3] VCEAGA1CW476M Capacitor(16WV 47µF) [C4] VCEAGA1EW106M Capacitor(25WV 10µF) [C5] VCEAGA1EW226M Capacitor(25WV 22µF) [C6] VCEAGA1HW475M Capacitor(50WV 4.7µF) [C7] VCEAGA1HW105M Capacitor(50WV 1µF)
  • Page 184 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [16] Control PWB unit VCKYTV1HB102K Capacitor(50WV 1000PF) [C183] VCKYTV1EF104Z Capacitor(25WV 0.1µF) [C189] VCKYTV1EF104Z Capacitor(25WV 0.1µF) [C190] VCKYTV1EF104Z Capacitor(25WV 0.1µF) [C192] VCKYTV1EF104Z Capacitor(25WV 0.1µF) [C196] VCKYTV1HB222K Capacitor(50WV 2200PF) [C197] VCKYTV1HB222K Capacitor(50WV 2200PF) [C198] VCKYTV1HB103K Capacitor(50WV 0.01µF)
  • Page 185 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [16] Control PWB unit VCKYTV1HB102K Capacitor(50WV 1000PF) [C436] VCKYTV1HB102K Capacitor(50WV 1000PF) [C437] QCNCM7014SC1J Connector(10pin) [CNCIS] QCNCM2499SC1B Connector(9pin) [CNLIU] QCNCM2589SC5J Connector(50pin) [CNOP] QCNCM2525SC4J Connector(40pin) [CNPCIF] QCNCM2482SC2D Connector(24pin) [CNPN] QCNCM2525SC3J Connector(30pin) [CNPRT] QCNCM7014SC1B Connector(12pin) [CNPW]...
  • Page 186 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [16] Control PWB unit VHIHD74HC14FM IC,SCHMITT-TRIGER INVERTER(74HC14) [IC34] VHI74VHC393FT IC,DUAL D-TYPE FLIP-FLOPS(74VHC393) [IC35] VHIW24010S7LE IC,1Mbit SRAM(W24010S-70L) [IC36] VHIPST596CMT1 IC,SYSTEM RESET(PST596) [IC37] VHITC7S00FU-1 IC,NAND GATE(TC7S00FU) [IC41] VHIAD8051//-1 IC,OP AMP.(AD8051) [IC100] VHITC74HCU04F IC,INVERTER(74HCU04) [IC101] Resistor(1/10W 0Ω...
  • Page 187 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [16] Control PWB unit Resistor(1/10W 270Ω ±5%) VRS-TS2AD271J [R170] Resistor(1/10W 3KΩ ±5%) VRS-TS2AD302J [R171] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [R172] Resistor(1/10W 270Ω ±5%) VRS-TS2AD271J [R173] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [R175] Resistor(1/10W 270Ω ±5%) VRS-TS2AD271J [R176] Resistor(1/10W 270Ω...
  • Page 188 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [16] Control PWB unit Resistor(1/10W 4.7KΩ ±5%) VRS-TS2AD472J [R258] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [R260] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [R261] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [R262] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [R263] Resistor(1/10W 2.2KΩ ±5%) VRS-TS2AD222J [R264] Resistor(1/10W 0Ω...

  • Page 189: Liu Pwb Unit

    FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [16] Control PWB unit Resistor(1/10W 10KΩ ±5%) VRS-TS2AD103J [R364] Resistor(1/10W 100KΩ ±5%) VRS-TS2AD104J [R365] Resistor(1/10W 10KΩ ±5%) VRS-TS2AD103J [R367] Resistor(1/10W 470Ω ±5%) VRS-TS2AD471J [R368] Resistor(1/10W 1KΩ ±5%) VRS-TS2AD102J [R369] Resistor(1/10W 1KΩ ±5%) VRS-TS2AD102J [R370] Resistor(1/10W 33KΩ...
  • Page 190 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [17] Liu PWB unit VCEAGA1HW106M Capacitor(50WV 10µF) [C5] VCEAGA1HW106M Capacitor(50WV 10µF) [C6] VCEAGA1EW107M Capacitor(25WV 100µF) [C8] RC-FZ2022SCZZ Capacitor(250WV 0.47µF) [C9] VCEAGA1HW225M Capacitor(50WV 2.2µF) [C10] VCEAGA1HW475M Capacitor(50WV 4.7µF) [C13] VCKYTV1EF104Z Capacitor(25WV 0.1µF) [C100] VCKYTV1HF223Z Capacitor(50WV 0.022µF)

  • Page 191: Printer Pwb Unit

    FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [17] Liu PWB unit VHVDSS301L/-1 Capacitor(DSS301L) [VA1] VHVTN07G101-1 Varistor(TNR07G101K) [VA2] VHEMTZJ390B-1 Zener diode(MTZJ39B) [ZD3] VHEHZ3B1///-1 Zener diode(HZ3B1) [ZD4] VHEHZ3B1///-1 Zener diode(HZ3B1) [ZD5] VHEMTZ6R8B/-1 Zener diode(MTZ6.8B) [ZD8] VHEMTZJ300B-1 Zener diode(MTZJ30B) [ZD9] VHEHZ3B1///-1 Zener diode(HZ3B1) [ZD11]...

  • Page 192: Power Supply Pwb Unit

    FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [18] Printer PWB unit VHVICPS18//-1 Varistor [F100] LPLTM3029XHZZ Heat sink [H1] VHITEA3718SDP IC,MOTOR DRIVER(TEA3718SDP) [IC1] VHIM38073M/-1 IC,CPU(M38073E4FP) [IC2] VHIULN2003ADR IC,TRANSISTOR ARRAY(ULN2003A) [IC3] VHITEA3718SDP IC,MOTOR DRIVER(TEA3718SDP) [IC4] VHI74VHC02F-1 IC,HCMOS(74VHC02) [IC5] VSDTD123YK/-1 Transistor(DTD123YK) [Q100] VSDTB114EK/-1...
  • Page 193 FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [19] Power supply PWB unit RCORF0071PAZZ Ferrite beads [BJ2] RC-FZ149DPAZZ Capacitor(275WV 0.22µF) [C1] RC-FZ148DPAZZ Capacitor(275WV 0.1µF) [C2] RC-QZ0173PAZZ Capacitor(250WV 1000PF) [C3] RC-QZ0173PAZZ Capacitor(250WV 1000PF) [C4] RC-QZ0174PAZZ Capacitor(250WV 2200PF) [C5] RC-EZ0393PAZZ Capacitor(400WV 68µF) [C6] RC-FZ148DPAZZ...

  • Page 194: Operation Panel Pwb Unit

    FO-4700TH FO-47A4 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [19] Power supply PWB unit Resistor(1/6W 120KΩ ±5%) VRD-ST2CD124J [R62] RRLYZ0101PAZZ Relay(SDT-SS-124DM) [RL1] VHSTF321S//-1 Thyristor(TF321S) [SCR1] VHS03P2M///-3 Thyristor(03P2M(L)) [SCR2] QSW-C0048PAZZ Switch(AJ7220BK) [SW1] RTRNZ0675PACD Trans former [T1] VHH9D160LA/-1 Thermistor(NTH9D160LA) [TH1] VHSTM561I//-1 Thyristor(TM561I) [TRC1] RVR-M0390PAZZ...
  • Page 195 FO-4700TH FO-47A4 I n d e x PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE RANK MARK RANK MARK RANK MARK RANK RANK RANK LPLTM3036XHZZ 2-19 NSFTZ2309XHZZ 14-31 NSFTZ2312XHZZ 14-32 CBSHP2079SC02 LPLTM3037XHZZ 1-23 CCASP2107XH53 LPLTP2819XHZZ ″ 4-901 LPLTP2821XHZZ PBRS-2047SCZZ...
  • Page 196 FO-4700TH FO-47A4 PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK RANK MARK RANK QCNCM7014SC1B 16-169 RH-PX0285PAZZ 19-51 VCCCTV1HH180J 18-29 ″ 18-30 QCNCM7014SC1J 16-163 RMOTZ2146XHZZ ″ 23-4 RR-NZ0064PAZZ 19-84 VCCCTV1HH200J 16-113 QCNCW2500SC1B 17-30 RR-NZ0065PAZZ...
  • Page 197 FO-4700TH FO-47A4 PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE RANK MARK RANK MARK RANK MARK RANK RANK RANK VCKYTV1EB821K 18-32 VCKYTV1EF104Z 16-153 VHDHRW0502A-1 16-192 ″ ″ ″ 16-193 18-38 17-14 ″ ″ VCKYTV1EF103Z 18-3 17-16 16-194 ″...
  • Page 198 FO-4700TH FO-47A4 PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK RANK MARK RANK VHI1M16E//J-6 16-226 VRS-TS2AD000J 16-281 VRS-TS2AD100J 16-447 ″ ″ 16-448 VHI27160FAL0C 16-214 16-288 ″ ″ VHI74VHC02F-1 18-70 16-291 16-456 ″...
  • Page 199 FO-4700TH FO-47A4 PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE RANK MARK RANK MARK RANK MARK RANK RANK RANK VRS-TS2AD103J 16-507 VRS-TS2AD330J 16-310 VRS-TS2AD683J 16-427 ″ ″ ″ 16-429 16-515 16-311 ″ ″ 16-526 16-353 VRS-TS2AD751J 17-79 ″...
  • Page 200 FO-4700TH FO-47A4 PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK RANK MARK RANK 0KW4109202401 8-13 0KW4122039102 11-49 0KW4109203902 11-28 0KW4122206801 8-19 0KW4109206001 11-31 0KW4122206901 8-16 0KW4109250101 11-10 0KW4122207001 8-11 0KW4109250201 11-11 0KW4122207102 0KW4109250301...
  • Page 201 FO-4700TH FO-47A4 CAUTION FOR BATTERY REPLACEMENT (Danish) ADVARSEL ! Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandoren. (English) Caution ! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the equipment manufacturer.
  • Page 202 FO-4700TH FO-47A4 © COPYRIGHT 1999 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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