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Sharp FO IS125N - B/W Laser - All-in-One Service Manual

Service manual
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TopPage
[1]
Caution................................................... . ....... 1-1
[2]
Specifications ......................................... . ....... 1-3
[3]
Operation panel...................................... . ....... 1-5
[4]
Transmittable documents ....................... . ....... 1-6
[5]
Installation .............................................. . ....... 1-7
[6]
Clearing paper jams ............................... . ..... 1-11
[1]
Adjustments ........................................... . ....... 2-1
[2]
[3]
Troubleshooting ..................................... . ..... 2-56
[4]
Error code table...................................... . ..... 2-57
[1]
Mechanical description........................... . ....... 3-1
[2]
[1]
Block diagram ........................................ . ....... 4-1
[2]
Wiring diagram ....................................... . ....... 4-2
[3]
Point-to-point diagram............................ . ....... 4-3
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
SERVICE MANUAL
MODEL
MODEL
FO-IS125N
CONTENTS
CHAPTER 5. CIRCUIT DESCRIPTION
[1]
Circuit description ..........................................5-1
[2]
[3]
[4]
Circuit description of CIS unit ......................5-27
[5]
operation panel PWB...................................5-27
[6]
Data flow chart.............................................5-28
[7]
Troubleshooting ...........................................5-29
[1]
Control PWB circuit .......................................6-1
[2]
Power Supply PWB circuit...........................6-16
[3]
High Voltage PWB circuit.............................6-18
[4]
Hook Switch PWB circuit .............................6-21
[1]
Protocol .........................................................7-1
[2]
Power on sequence.......................................7-2
[3]
No. 00ZFIS125NSME
FACSIMILE
FO-IS125N
SELECTION CODE DESTINATION
U
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
FO-IS125N
U.S.A.

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Summary of Contents for Sharp FO IS125N - B/W Laser - All-in-One

  • Page 1: Table Of Contents

    TopPage FO-IS125N SERVICE MANUAL No. 00ZFIS125NSME FACSIMILE FO-IS125N MODEL MODEL SELECTION CODE DESTINATION FO-IS125N U.S.A. CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 5. CIRCUIT DESCRIPTION Caution............1-1 Circuit description ..........5-1 Specifications ..........1-3 Circuit description of control PWB ....5-2 Operation panel........

  • Page 2: Chapter 1. General Description

    FO-IS125N CHAPTER 1. FO-IS125N GENERAL DESCRIPTION Service Manual [1] Caution 1. Laser 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 dose 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.
  • Page 3 FO-IS125N 3. Caution for Battery replacement (French) ATTENTION (Danish) ADVARSEL ! Il y a danger d'explosion s' il y a remplacement incorrect Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering. de la batterie. Remplacer uniquement avec une batterie du Udskiftning må kun ske med batteri af samme fabrikat og type. même type ou d'un type recommandé...

  • Page 4: Specifications

    Halftone (grayscale): 64 levels Contrast control: Automatic/Dark selectable *Based on Sharp Standard Chart at standard resolution, excluding time for protocol signals (i.e.,ITU-T phase C time only). Network and general specifications Automatic document feeder: Letter/A4: 30 sheets max. (20-lb. paper) Legal: 5 sheets max.
  • Page 5 Approx. 15.6 lbs. (7.1 kg) As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

  • Page 6: Operation Panel

    FO-IS125N [3] Operation panel 10 11 SPEAKER HOLD SPEED DIAL REDIAL GLOBAL ADDRESS FUNCTION RECEPTION RESOLUTION RELEASE SYMBOL INFO 19 20 21 Note: Affix the Rapid Key labels as shown above. Press to listen to the line and fax tones When a document is in the feeder, 1.

  • Page 7: Transmittable Documents

    FO-IS125N [4] Transmittable documents 4. Cautions on Transmitting Documents • Documents written in yellow, greenish yellow, or light blue ink can- 1. Document Sizes not be transmitted. • Ink, glue, and correcting fluid on documents must be dry before the Normal size Width 148 - 216 mm...

  • Page 8: Installation

    FO-IS125N [5] Installation 3. Attaching the tray 1) Attach the paper tray. 1. Site selection Take the following points into consideration when selecting a site for this model. ENVIRONMENT • The machine must be installed on a level surface. • Keep the machine away from air conditioners, heaters, direct sun- light, and dust.

  • Page 9: Connecting The Power Cord

    The starter toner cartridge included with the machine can print approximately 1500 letter-size pages at 5% page coverage. • When replacing the toner cartridge, use a SHARP FO-25ND toner cartridge. One cartridge can print about 3000 letter-size pages at 5% coverage.
  • Page 10 FO-IS125N 7) Grasp the cartridge handle and insert the toner cartridge into the 2) Press the release ( ) and open the front cover ( print compartment, sliding it along the guides. 3) Open the side cover. Grasp this handle to insert the cartridge.

  • Page 11: Resetting The Drum Counter

    FO-IS125N 9. Resetting the drum counter 3) Push the paper plate back. Each time you install a new drum cartridge, follow the steps below to reset the drum counter to zero. 1) Press and then until [LIFE] appears in the display. INFO 2) Press , then...

  • Page 12: Clearing Paper Jams

    FO-IS125N [6] Clearing paper jams 4) Close the operation panel, pressing down firmly on both sides to make sure it clicks into place. 1. Clearing a jammed document If the original document doesn’t feed properly during transmission or copying, or [DOCUMENT JAMMED] appears in the display, first try START pressing .
  • Page 13 FO-IS125N 4) If the jammed paper is protruding from the front of the machine, gently pull it out. Take care not to tear the paper or leave any torn pieces of paper in the print compartment. • If this clears the jam, go to Step 5. •...

  • Page 14: Chapter 2. Adjustments

    FO-IS125N CHAPTER 2. FO-IS125N ADJUSTMENTS Service Manual [1] Adjustments 1. General description Since the following adjustments and settings are provided for this model, make adjustments and/or setup as necessary. 2. Adjustments of output voltage (FACTORY ONLY) 1. Install the power supply unit in the machine. 2.
  • Page 15 FO-IS125N 3. High voltage power check 3.1. General Note: Since the parts of this PWB cannot be supplied, change it as a unit. CAUTION DO NOT TOUCH! (VR1, VR51) CAUTION HIGH VOLTAGE AREA MAX. 4000V (THICK LINE) CAUTION DO NOT TOUCH! (VR31) CAUTION - HIGH VOLTAGE The unit's back cover should never be opened by...
  • Page 16 FO-IS125N 3.2. MC Voltage Check Point GND (-) (J3 or Chassis Frame) MC Voltage Check Point (-) (There is danger of an electric shock!) Use Measuring instrument: Input Resistance : more than 100 MΩ Maximum Voltage : more than 2 kV VOLTAGE MC : - 950 V ±...
  • Page 17 FO-IS125N 3.3. TC Voltage Check Point GND (-) (J3 or Chassis Frame) TC Voltage Check Point (+) (There is danger of an electric shock!) Use High Voltage Tester: Requirement of Measuring instrument: Input Resistance : more than 100 MΩ Maximum Voltage : more than 5 kV VOLTAGE TC (+) : + 3600 V ±...
  • Page 18 FO-IS125N 3.4. SV/DV Voltage Check Point and SV (-) Voltage Adjustment Volume GND (-) (J3 or Chassis Frame) DV Voltage Check Point (+) VOLTAGE DV (+) : + 300 V ± 5 V (CLEANING) DV (-) : - 200 V ± 5 V (PRINTING) SV Voltage Check Point (+) VOLTAGE SV (+) : + 300 V ±...

  • Page 19: Volume Adjustment

    2) If you selected “OFF OK?” to turn off the ringer, press open, replace it with a new one. Replacement parts KAB3202 801 (Sharp code: QFS-L1037YCZZ) KAB5002 251 (Sharp code: QFS-L2021XHZZ) KAB2402 402 (Sharp code: QFS-L2025XHZZ) KAB5002 321 (Sharp code: QPRTR2001XHZZ)

  • Page 20: Diagnostics And Service Soft Switch

    Pressing [>] or [#] key moves the cursor to the right. If the cursor is on data number 8, pressing [>] or [#] key shifts the cursor to data START SHARP CHART MODE number 1 of the next switch number. If the switch number is the START 5% CHART final, pressing [>] or [#] key will exit the soft switch mode.
  • Page 21 FO-IS125N e) Pressing [8] key moves the cursor to the data number 1 of the 2.4. PANEL KEY TEST 10th former soft switch. This is used to check whether each key is normally operated or not. After the test, the test result will be printed. SW123=01100000 SW113=00011010 SW103=00000000...
  • Page 22 FO-IS125N 2.6. SIGNAL SEND MODE 2.8. MEMORY CLEAR The specified signals are transmitted in the following sequence to Clear the back-up memory including the soft switches, registration check the modem. data. After executing this mode, the memory clear report is printed. 1.
  • Page 23 A mode for clearing the life value. Press the [STOP] key to exit the mode. 2.14. SHARP CHART MODE DIAG MODE LIFE CLR MODE SHARP CHART is printed continuously. [START] Key [START] Key SHARP CHART AGING DIAG MODE Start by pressing the...
  • Page 24 FO-IS125N 3. How to make soft switch setting To enter the soft switch mode, press the following key entries in sequence. Press FUNCTION 9 START START DATA No. 1 2 3 4 5 6 7 8 SW001 = 0 0 0 0 0 0 0 0 Press 1 or key.
  • Page 25 FO-IS125N 4. Soft switch description 4.1. Soft switch Switch setting and function DATA Initial ITEM Remarks setting Receive mode AUTO MANU. RECEPTION No.1 No.2 Reserved Reserved Reserved Reserved Sort copy function Yes (Sort) OPTION Reserved Forced 4800BPS reception CED tone signal interval 75ms 500ms 750ms...
  • Page 26 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Recall interval (FAX) Setting: N = 1 to 9 Binary input No. = 8 4 (Data No.) EX 0 eg. 3 minutes Recall times (FAX) Setting: N = 1 to 9 Binary input No.
  • Page 27 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved 13sec 25sec 5sec 5sec EOL detection timer No. 3 No. 4 Reserved Reserved Reserved Reserved DTMF ON time No. 1 No. 2 No. 3 70ms 90ms 95ms 100ms 110ms 120ms 140ms...
  • Page 28 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Automatic reduce of receive 100% Auto OPTION Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Send hold SECURITY DTMF output level (High) Binary input...
  • Page 29 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Number of rings for auto-receive (0:No ring receive) Binary input No. = 8 4 (Data No.) EX 0 eg. Number of rings for auto-receive is set to 1. Distinctive ring No.
  • Page 30 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 31 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Delay timer before line connect in 0sec 1.5sec 3.0sec auto dial No. 1 No. 2 Delay timer after line connect in auto 1.7sec 3.0sec 3.6sec...
  • Page 32 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Ringer volume MIDDLE HIGH No. 3 No. 4 Speaker volume MIDDLE HIGH No. 5 No. 6 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved CI signal min.
  • Page 33 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 34 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Digital cable equalizer for reception Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved CNG detection time after ringing 20sec 10sec 30sec No limit No. 5 No. 6 Reserved Reserved Reserved...
  • Page 35 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Digital cable equalizer for transmis- Effective Not effective sion Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 36 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 37 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Error criterion 10~20% 5~10% Toner empty print Print Not print Reserved Drum life over Printer error Printer warning Reserved Reserved Reserved Reserved...
  • Page 38 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 39 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 40 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 41 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 42 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 43 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 44 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 45 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 46 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 47 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Detect time of LAN link on 1 - 15 seconds Binary input No. = 8 4 (Data No.) EX 0 = 4seconds Note: "0 0 0 0" = 1 Detect time of LAN link off 1 - 15 seconds Binary input No.
  • Page 48 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting DST start time-Day of week No. 1 No. 2 No. 3 OPTION Sunday Monday Tuesday Wednesday Thursday Friday Saturday DST start time-Hour Binary input No. = 16 8 4 2 1 5 6 7 8 (Data No.) EX 0 0 0 1 0...
  • Page 49 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Automatic elimination After 3 After 24 After 3 SECURITY hours hours deleted hours No. 1 No. 2 Search method by right and left key Fax data All data OPTION Warning when login fails Enable Disable Reserved...
  • Page 50 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 51 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 52 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 53 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 54 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 55 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 56 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 57 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 58 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Pre-heat timing After closing data file Receiving print request Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 59 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 60 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 61 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 62 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 63 FO-IS125N DATA Switch setting and function Initial ITEM Remarks setting Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 2 – 50...
  • Page 64 FO-IS125N 4.2. Soft switch function description SW3 No. 8 Default file format for network scan SW setting the default of the compression format and the file type SW1 No. 1, No. 2 Receive mode required for generating the image data from network scanned data. Used to select the reception mode (AUTO or MANUAL) for receiving SW4 No.
  • Page 65 FO-IS125N SW7 No. 7 Number of CNG detection SW12 No. 3, No. 4 EOL (End of Line) detection timer Used for detection of CNG in 2 or 3 pulses. Used to make a choice of whether to use the 25-second or 13-second timer for detection of End of line This is effective to override communi- SW7 No.
  • Page 66 FO-IS125N SW22 No. 4, No. 5 Busy tone detection frequency SW41 No. 3, No. 4 Line density selection To select frequency range of signals to be detected as Busy Tone. Used to set the transmission mode which is automatically selected when the Resolution key is not pressed.
  • Page 67 FO-IS125N SW55 No. 4 ~ No. 8 Reserved SW78 ~ SW143 No. 1 ~ No. 8 Reserved SW56 No. 1 ~ No. 4 Reserved SW144 No. 1 ~ No. 3 Connect configuration for LAN controller Used to set the communication speed when connecting to LAN. SW56 No.
  • Page 68 FO-IS125N SW152 No. 4 Authorized transmission Used to enable the authorized transmission function. SW152 No. 5, No. 6 To be authenticated Used to select the communication mode using the authorized trans- mission function. SW152 No. 7, No. 8 Notice to the sender Used to select the result notification method to the sender using the authorized transmission function.

  • Page 69: Troubleshooting

    FO-IS125N [3] Troubleshooting • Slow down the transmission speed SOFT SWITCH SW5-2, 3, 4, 5. May be used in case [2] [3]. Refer to the following actions to troubleshoot any of the problems mentioned in 1-4. • Replace the LIU PWB. [1] A communication error occurs.

  • Page 70: Error Code Table

    FO-IS125N [4] Error code table 1. Communication error code table 1.1. 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 fall back Disconnects line during reception of multi page...

  • Page 71: Chapter 3. Mechanical Description

    FO-IS125N CHAPTER 3. FO-IS125N MECHANICAL DESCRIPTION Service Manual [1] Mechanical description 3.2. Automatic document feed 1) The structure with secure paper feed of the transfer roller and 1. Facsimile block secure separation of the separation rubber system is employed. The transfer roller is circular as to be rotated only when the paper 1.1.
  • Page 72 FO-IS125N 4. Paper path Exit roller Print Document Paper exit input Exit Pinch roller Optical POsensor unit (LSU) Backup roller Send feed roller Toner cartridge Separation rubber Front sensor Back roller Exit Pinch roller Document exit Exit roller Feed roller Drum Pick up roller Heat roller...
  • Page 73 FO-IS125N 5. Components layout Fig. 5 PARTS NAME PARTS NAME Exit pinch roller Drum cartridge Exit roller Transfer roller Optical unit (LSU) Back roller Toner cartridge Feed roller Backup roller Send feed roller Heat roller Front sensor Exit pinch roller Separation rubber Exit roller Pickup roller...
  • Page 74 FO-IS125N 6. Switch/Sensor layout Fig. 6 PARTS NAME TYPE DESCRIPTION P-IN sensor Microcircuit When this switch is turned on, paper transport. Interlock switch Microcircuit Detects the opening or closing of the Front Cover. Toner cartridge sensor Microcircuit Detects when the Toner Cartridge is set. Paper out sensor Photo transistor Detects when the paper is fed out.

  • Page 75: Print Process

    FO-IS125N 7. Print process 7.1. Image forming process Normal paper is used as print paper. A laser beam is used to expose on the OPC surface to form latent electrostatic images, which are developed into visible images (toner images) and are transferred on paper.
  • Page 76 FO-IS125N 7.4. Image forming process diagram Scanning Lens Laser diode mirror High voltage Mirror circuit Main charger Exposure brush Toner Cleaning, Charge Development cleaning Developing High voltage roller circuit Paper exit Fusing Separation Transfer Paper feed roller Paper tray Paper Separation sheet Transfer roller...
  • Page 77 FO-IS125N 7.5. Functions and operations of major parts 7.5.2 Developing unit Latent electrostatic images formed by laser beam on the OPC drum are developed to visible images by the developing unit. Toner is filled Paper Optical unit(LSU) in the developing unit. a.
  • Page 78 FO-IS125N 7.6. Image forming operation STEP 2 (Exposure): Laser beam scanning light corresponding to the print data is radiated on the OPC drum. STEP 1 (Cleaning, Charg- Residual toner the OPC drum is Positive and negative charges are generated in the OPC drum CGL ing): stirred and negative charges are exposed with the laser beam.
  • Page 79 FO-IS125N On the other hand, when an area of OPC drum which was not STEP 3 (Development): Toner is attached to the latent electro- exposed to the laser beam and did not lose its charge comes in con- static images on the OPC drum to form tact with the developing roller, any residual toner attached to the OPC visible images.
  • Page 80 FO-IS125N STEP 5 (Paper separation): The paper is separated from the STEP 6 (Dis- The drum surface is discharged to facilitate OPC drum. charge): cleaning of the drum surface. (The remaining toner is easily collected by the main charger roller.) Main charger roller (brush) Paper...
  • Page 81 FO-IS125N 7.7. OPC drum surface potential 7.7.2 OPC drum surface potential and developing bias voltage in development 7.7.1 Transition of OPC drum surface potential by print operation During Start Stop developing Dark area potential Laser Dark area beam potential -180V -950V Developing bias...

  • Page 82: Timing Chart

    FO-IS125N 8. Timing chart 8.1. Print process PRINT PROCESS Pre-Printing period After Printing period Printing period Soft Control 3.0sec max 5.0sec Signal One or more page printing Name (Polygon motor) (Main motor) MCON (Main charger) Signal PWMSIN (Superposing) Signal (Duty) 5sec TC (Transfer Charger)

  • Page 83: Disassembly And Assembly Procedures

    FO-IS125N [2] 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 84 FO-IS125N 2. Motor cover/Handset holder unit/Bottom cabinet Parts list (Fig. 2) NOTE: For disassembly of the inside of the unit, Part name Part name refer to the exploded view in the parts guide. Mechanism unit Connector Screw (3x10) Handset holder unit Hook Screw (3x10) Motor cover...
  • Page 85 FO-IS125N 3. Paper hopper unit/PWB’s/Operation panel unit NOTE: For disassembly of the inside of the unit, Parts list (Fig. 3) Part name Part name refer to the exploded view in the parts guide. Mechanism unit Flat cable Screw (3x10) Connector Paper hopper unit Control PWB unit Screw (3x8)
  • Page 86 FO-IS125N 4. Paper hopper Parts list (Fig. 4) Part name Part name Paper hopper unit Rotation plate Screw with washer (3x10) Paper pad RP release spring Coil spring RP release gear, right A4 paper guide RP release gear, left Paper hopper RP release plate 1 Paper hopper unit Fig.4...
  • Page 87 FO-IS125N 5. Front cover unit/PU guide upper unit/PWB plate/Optical unit/Fusing unit/Drive unit NOTE: For disassembly of the inside of the unit, Parts list (Fig. 5) Part name Part name refer to the exploded view in the parts guide. Mechanism unit Screw (3x10) Hook Optical unit...
  • Page 88 FO-IS125N 6. Wire treatment Parts list (Fig. 6) Part name Band (100mm) TOP VIEW Control PWB unit Power supply PWB unit AC cord Speaker cable (CNSP) Fan motor Hook switch cable (CNFM) cable (CNTEL) Solenoid cable (CNSL) Thermal fuse AC cord Scanner motor Interlock cable (CN5)

  • Page 89: Chapter 4. Diadrams Block Diagram

    FO-IS125N CHAPTER 4. FO-IS125N DIADRAMS Service Manual [1] Block diagram Fax Controller Scanner Unit Operation Panel Unit CX95410-12Z Document Sensor 20chr. x 2lines Scanner 200dpi, B/W Decoder Key Matrix 70keys Stepper Motor (Scanner Motor) Sense Printer Engine RJ-45 LAN Controller OPTICAL UNIT Integrated (Ethernet)

  • Page 90: Wiring Diagram

    FO-IS125N [2] Wiring diagram 4 – 2...

  • Page 91: Point-To-Point Diagram

    FO-IS125N [3] Point-to-point diagram CNCIS CNCIS CNPN CNLCD1 CNPN KEN3 KEN3 KEN2 KEN2 KEN1 KEN1 KEN0 KEN0 DB3(N.C.) GLED GLED /ORGSNS ORGSNS /FRSNS FRSNS VLED VLED LCDE LCDE DB1(N.C.) LCD UNIT /SEN0 /SEN0 DB0(N.C.) /SEN1 /SEN1 CNSP /SEN2 /SEN2 SPEAKER /SEN3 /SEN3 /SEN4...

  • Page 92: Circuit Description

    FO-IS125N CHAPTER 5. FO-IS125N CIRCUIT DESCRIPTION Service Manual [1] Circuit description 1. General description The compact design of the control PWB is obtained by using Fax Engine (CX95410-12Z) in the main control section and high density printing of surface mounting parts. Each PWB is independent accord- ing to its function as shown in Fig.

  • Page 93: Circuit Description Of Control Pwb

    FO-IS125N [2] Circuit description of control PWB • Compact lead-free (Pb-free) package CX95410 Fax Engine Controller: 176-pin LQFP 1. General description CX20548 Codec (IA): 16-pin QFN The control PWB is composed of the following blocks. 2. System Function 1.1. Main control block Scan: Scanner control signals are provided by FlexIO port and dedicated I/O to support common CIS scanners.
  • Page 94 FO-IS125N CX95410-12Z (IC100) Terminal Description Side Pin Signal Name Pad Signal Pad Cell Def. Drv. Str. Hys PU / PD Description Type Name (def.) pcb00rtc PWRDWNn pwrdwnn Battery Power Down Indication pcb00rtc BATRSTn bat_rstn Battery Reset pvsnnn PLL_VSS pllvss PLL Ground pvdnnn PLL_VDD pllvdd...
  • Page 95 FO-IS125N CX95410-12Z (IC100) Terminal Description Side Pin Signal Name Pad Signal Pad Cell Def. Drv. Str. PU / PD Description Type Name (def.) GPIO[23] gpio[23] plbgp PGM, 3.5 General Purpose I/O GPIO[24] gpio[24] plbgp PGM, 3.5 General Purpose I/O VDDO vddo pvdnpo 3.3V Power...
  • Page 96 FO-IS125N CX95410-12Z (IC100) Terminal Description Side Pin Signal Name Pad Signal Pad Cell Def. Drv. Str. Hys PU / PD Description Type Name (def.) VDDO vddo pvdnpo 3.3V Power vsso pvsnno I/O Ground pvdcnn 1.25V Core Power GPIO[66] gpio[66] PGM PGM plbgp PGM, 3.5 General Purpose I/O...
  • Page 97 FO-IS125N CX95410-12Z (IC100) Terminal Description Side Pin Signal Name Pad Signal Pad Cell Def. Drv. Str. Hys PU / PD Description Type Name (def.) ADDR[7] m_addr[7] plb03 SDRAM Address ADDR[6] m_addr[6] plb03 SDRAM Address ADDR[5] m_addr[5] plb03 SDRAM Address ADDR[4] m_addr[4] plb03 SDRAM Address...
  • Page 98 FO-IS125N 6) Distinguishing Features (SSF336) • System side powered DAA operates under poor line current supply conditions • 2-wire V.34 half-duplex fax modem mode with send and receive data rates up to 33,600 bps • Wake-on-ring • Automatic Rate Adaptation (ARA) in V.34 half-duplex •...
  • Page 99 FO-IS125N 9) CX95110 (IC1000) Terminal description Pin Name Pin No. Pin I/O I/O Type Signal Description Crystal/Clock Signals XTALI/CLKIN Crystal/Oscillator In. The modem must be connected to an external crystal/oscillator circuit consisting of a 28.224 MHz crystal/oscillator. Label Crystal Oscillator XTALI/CLKIN XTALI CLKIN...
  • Page 100 FO-IS125N Pin Name Pin No. Pin I/O I/O Type Signal Description Line Interface Signals P_DIBn SSD DIB Negative. Provides clock and power to the LSD, and transfers data, control and status information between the SSD and the external LSD through the DIB for con- nection to the telephone line.
  • Page 101 FO-IS125N 2.1.4 Scanner I/F block 1) CIS I/F block The CIS is controlled by Fax Engine (IC100), and the output video sig- nal from CIS is input into AFE block of Fax Engine (IC100). CIS LED is controlled through LED driving circuit (Q600) by Fax Engine (IC100). LED Driving Fax Engine circuit Q600...
  • Page 102 FO-IS125N 2.2. Printer control block Fax Engine (IC100) controls each component of Laser Beam Printer (LBP) as follows. 1) Main Motor control 2) Pickup Motor control 3) Fuser control 4) High Voltage Generator control 5) Laser Scanning control 6) Sensor monitor 2.2.1 Signal connection 3.3 V Control 3.3 V/5 V/ 24 V Control...
  • Page 103 FO-IS125N 2.2.2 Signal assignment to the Printer CPU pins Mechanism control CPU Control unit Description Signal Pin No. PMCLK FlexIO0B[0] Polygon motor clock LDEN FlexIO2A[4] Laser circuit driving signal S_nH FlexIO2A[5] APC circuit sample signal PDATA FlexIO2B[0] Laser on signal HSYNC FlexIO2B[4] Laser main scanning syncronism signal...
  • Page 104 FO-IS125N 2.2.3 Hardware controlled protection function Device Protective action Circuit description Purpose Status to be activated Heater lamp (fusing The heater lamp is The circuit forcibly turns off Avoiding the abnormally The protection is activated device) forcibly turned off (resets) the control signal of the high temperature of the when F/W is out of control, the when the temperature...
  • Page 105 FO-IS125N 2.3. LAN control block The diagram shown above, describes a typical system configuration of the LAN9118-MT in a typical embedded environment. LAN Control Block is composed with LAN controller LAN9118- The LAN9118-MT is a general purpose, platform independent, Ether- MT(IC800) and integrated magnetics LAN jack.
  • Page 106 FO-IS125N Table 3 LAN Interface Signals Table 4 Serial EEPROM Interface Signals 5 – 15...
  • Page 107 FO-IS125N Table 5 System and Power Signals (1/2) 5 – 16...
  • Page 108 FO-IS125N Note 1 Note 1 Note 1 Note 1 Table 5 System and Power Signals (2/2) 5 – 17...
  • Page 109 FO-IS125N 2.4. Power section The Control PWB requires multi voltage (+3.3V, +5V, +24V, +24VH). V4D, +24V and +24VH are supplied from the power supply unit. +3.3V are generated by the regulator (IC900) on the Control PWB. INT5V is generated by regulator (IC302) on the Control PWB, is the exclusive use as interlocking power for Optical unit (LSU).
  • Page 110 FO-IS125N 2.5. TEL line interface block BLOCK B BLOCK A SURGE Line Side PDIB_N PROTECTION Device TEL.LIN CIRCUIT CX20548-11Z PDIB_P DIODE BRIDGE AGND_LSD Digital Isolation Barrier ACTIVE (DIB) CHOKE AGND_LSD AGND_LSD HANDSET SDIB_N MIC IN Line Side Device SDIB_P CX20548-12Z HANDSET Host Side Device SPEAKER OUT...
  • Page 111 FO-IS125N 5) Modem circuit (BLOCK E) The control of the FAX communication by IC1000 (CX95110). The detection of CI signal, and the line monitor signal is mode. (Example: Fax signal send) BLOCK B BLOCK A SURGE Line Side PDIB_N PROTECTION Device TEL.LIN CIRCUIT...
  • Page 112 FO-IS125N CX20548 (IC1100, IC1200) Terminal description Pin Name Pin No. Pin I/O I/O Type Signal Description System Interface Signals Unregulated Power Output. Unregulated power output from the internal rectifier, connect to AGND_LSD through C870. Output Middle Reference Voltage. Connect to AGND_LSD through C844, which must be placed close to pin 3.
  • Page 113 FO-IS125N 3. Printer mechanism control block 3.1. Unit control 3.1.1 High voltage unit control The high voltage unit outputs the following voltages: • Main charger voltage (DC-950V + AC760V peak to peak) • Transfer charger voltage (DC+3600V + AC760V peak to peak) •...
  • Page 114 FO-IS125N 3.1.3 Laser scanning unit 1) Signal functions This unit controls the laser beam power and laser beam scanning. PMCLK Clock signal for driving the scanning motor. (2659.57Hz) The control is performed with the signals inputted outputted to or from the CPU and Logic circuit.
  • Page 115 FO-IS125N b) Laser Drive circuit operation timing 3.1.4 Fusing unit control The fusing section is heated by the heater lamp (500W). The heater Laser drive circuit/LD Drive Circuit lamp is controlled (turned on/off) to keep the optimum temperature. nHSYNC The following signals are outputted by the CPU and Logic circuit for nLDEN control.
  • Page 116 FO-IS125N b) PC printing • Temperature control is started when PC starts printing. • Temperature is controlled at 200 °C. (Heater OFF over 200 °C. Heater ON below 200 °C. • After printing, temperature is not controlled. • Fan motor starts revolving from the beginning of temperature control and stops 120 seconds after printing is finished.

  • Page 117: Circuit Description Of Power Supply Pwb

    FO-IS125N [3] Circuit description of power supply PWB This power supply unit has the function to convert the AC120V (50/ 5. +24V output circuit block 60Hz) to DC24V, and provide these outputs to the control PWB. The This circuit block rectifies and smoothes the high-frequency pulse volt- following explains the function of each block.

  • Page 118: Circuit Description Of Cis Unit

    FO-IS125N [4] Circuit description of CIS unit 2. Waveforms The following clock is supplied from IC100 (CX95110) of the control 1. CIS board, and VO is output. Cis is an image sensor which puts the original paper in close contact Approx.

  • Page 119: Data Flow Chart

    FO-IS125N [6] Data flow chart 1. COPY Control PWB Fax Engine Laser Scan Printing (IC100) Unit SDRAM (IC202) 2. FAX/SEND Control PWB Fax Engine Fax Modem PSTN (Line Side Device) (IC100) (IC1000) TEL LINE (IC1100) Flash SDRAM (IC201, IC203, IC204, IC206) (IC202) 3.

  • Page 120: Troubleshooting

    FO-IS125N [7] Troubleshooting 1. Printer error table The Fax Engine detected the optical unit (LSU) error. LASER ERROR Thermistor error was detected. THERMISTER ERROR HEATER HIGH High temperature error was detected. HEATER LOW Low temperature error was detected. 2. Troubleshooting of control PWB LSU Error Scanning-motor Error IC100 (Fax Engine)
  • Page 121 FO-IS125N L100 THERMISTER IC100 (40pin, 44pin) (Fax Engine) ERROR CNRTH (Connector) C, R on route of CNRTH-40pin of IC100 D101 (Diode) Fuser Temp. Temp. detect HEATER HIGH IC100 (Fax Engine) too High Error CNRTH (Connector) Other parts on route of CNRTH-IC100 Heater control Error IC100 (Fax Engine) /HLON signal...

  • Page 122: Chapter 6. Circuit Schematics And Parts Layout

    FO-IS125N CHAPTER 6. FO-IS125N CIRCUIT SCHEMATICS AND PARTS LAYOUT Service Manual [1] Control PWB circuit 1. Main Control Block (1a/12) Main Control Block (1/2) (2-6D) SDRD[15:0] SDRD0 SDRD1 SDRD2 SDRD3 SDRD4 SDRD5 SDRD6 SDRD7 BR101 100x4 8 7 6 8 7 6 BR100 C100 100x4...
  • Page 123 FO-IS125N 2. Main Control Block (1b/12) Main Control Block (2/2) 1/12 R126 +3.3V VCORE C101 C100 1000p +3.3V VCORE LAN_D[15:7] (7-6F,8-1A) BR103 LAN_D15 C108 LAN_D14 VDDO 0.1u LAN_D13 GPIO[45] BR105 LAN_D12 GPIO[44] LAN_D11 GPIO[43] 33x4 LAN_D10 GPIO[42] LAN_D9 GPIO[41] LAN_D8 GPIO[40] R103 LAN_D7...
  • Page 124 FO-IS125N 3. Memory Block (2/12) VOUT 6 – 3...
  • Page 125 FO-IS125N 4. Optical Unit (LSU) Block (3/12) N.M. C302 N.M. C301 N.M. C300 6 – 4...
  • Page 126 FO-IS125N 5. Printer Control (Fuser & High Voltage) Block (4/12) 6 – 5...
  • Page 127 FO-IS125N 6. Printer Control (Main Motor & Sensors) Block (5/12) (1608) 0.01u/50V C509 (1608) 0.01u/50V C508 (1608) 0.01u/50V C507 (1608) 0.01u/50V C506 HZU6.2B2 D500 6 – 6...
  • Page 128 FO-IS125N 7. Scanner I/F Block (6/12) (1608) 0.01u/50V C614 (1608) 0.01u/50V C613 (1608) 0.01u/50V C612 (1608) 0.01u/50V C611 CNCIS 6 – 7...
  • Page 129 FO-IS125N 8. User I/F Block (7/12) R701 N.M. C717 N.M. C716 N.M. C715 N.M. C714 1000p C713 N.M. C712 N.M. C711 N.M. C710 N.M. C709 N.M. C708 N.M. C707 N.M. C706 1000p C705 N.M. C704 N.M. C703 6 – 8...
  • Page 130 FO-IS125N 9. LAN Control Block (8/12) LINK/ACT SPEED (1608) 10.0-F R809 (1608) 49.9-F R808 R807 (1608) 49.9-F (1608) 49.9-F R814 (1608) 49.9-F R815 GND_CORE VREG SPEED_SEL 0.01u VDD_CORE C804 VSS_PLL XTAL2 TP822 0.01u XTAL1 C803 VDD_PLL EECLK TP821 (2012) VDD_REF EECS R812 C802...
  • Page 131 FO-IS125N 10. Power Supply Block (9/12) 6 – 10...
  • Page 132 FO-IS125N 11. Host Side Device (HSD) Block (10/12) 4.7K R1022 R1014 R1013 TP1003 EYECLK VSS-VSSO TP1002 EYCLK/SWCFG1 P_DIBp TP1001 EYCLK/SWCFG0 P_DIBn VSS-VSSO GPIO2 240K GPIO1 R1002 SDAA_RCREF GPIO0 XTALI/CLKIN RESETn XTALO ground) digital (VSS-VSSO PADDLE R1001 N.M. R1012 R1023 6 – 11...
  • Page 133 FO-IS125N 12. SmartDAA4 Line Side Device (LSD) Block (11/12) 6 – 12...
  • Page 134 FO-IS125N 13. Handset Codec Block (12/12) 2.2K R1200 6 – 13...
  • Page 135 FO-IS125N 14. Control PWB parts layout (Top side) The CONTROL PWB of the model employs lead-free solder. 6 – 14...
  • Page 136 FO-IS125N 15. Control PWB parts layout (Bottom side) The CONTROL PWB of the model employs lead-free solder. 6 – 15...

  • Page 137: Power Supply Pwb Circuit

    FO-IS125N [2] Power Supply PWB circuit 1. Power Supply PWB circuit 56/35 N.M. N.M. XP6501 5.6K 5.6K 0.01 5.6K 0.01 5.6K N.M. PS2581AL1 TLP363JF 6.8K N.M. MA8068 PS2581AL1 N.M. N.M. 33/35 TZP30B N.M. MA111 1000/35 330/16 MA111 100P PS2581AL1 MA111 4700P MA8091 8.2K...
  • Page 138 FO-IS125N 2. Power Supply PWB parts layout (Top side) The POWER SUPPLY PWB of the model employs lead-free solder. 3. Power Supply PWB parts layout (Bottom side) The POWER SUPPLY PWB of the model employs lead-free solder. 6 – 17...

  • Page 139: High Voltage Pwb Circuit

    FO-IS125N [3] High Voltage PWB circuit 1. High Voltage PWB circuit 6 – 18...
  • Page 140 FO-IS125N 2. High voltage PWB parts layout (Top side) Note: Since the parts of this PWB cannot be supplied, change it as a unit. CAUTION - HIGH VOLTAGE The unit's back cover should never be opened by anyone other than a qualified serviceperson.
  • Page 141 FO-IS125N 3. High Voltage PWB parts layout (Bottom side) Note: Since the parts of this PWB cannot be supplied, change it as a unit. CAUTION - HIGH VOLTAGE The unit's back cover should never be opened by anyone other than a qualified serviceperson.

  • Page 142: Operation Panel/Hook Switch Pwb Circuit

    FO-IS125N [4] Operation Panel/Hook Switch PWB circuit 1. Operation Panel/Hook Switch PWB circuit (1/2) 6 – 21...
  • Page 143 FO-IS125N 2. Operation Panel/Hook Switch PWB circuit (2/2) CNLCD1 CNLCD1 CNLCD2 CL-197SYG 6 – 22...
  • Page 144 FO-IS125N 3. Operation Panel/Hook Switch PWB parts layout (Top side) Note: Since the parts of PWB cannot be supplied, change it as a unit. The OPERATION PANEL/HOOK SWITCH PWB of the model employs lead-free solder. 6 – 23...
  • Page 145 FO-IS125N 4. Operation Panel/Hook Switch PWB parts layout (Bottom side) Note: Since the parts of PWB cannot be supplied, change it as a unit. The OPERATION PANEL/HOOK SWITCH PWB of the model employs lead-free solder. 6 – 24...

  • Page 146: Chapter 7. Other Protocol

    FO-IS125N CHAPTER 7. FO-IS125N OTHER Service Manual [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 147: Power On Sequence

    FO-IS125N [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” display display Other key ?

  • Page 148: Rewriting Version Up The Flash Rom

    FO-IS125N [3] Rewriting version up the FLASH ROM 1. Preparations Before updating the firmware, please make sure that you can browse the embedded Web Page by input the device IP address into the URL box of the browser. The example of connection is below: Cable/DSL modem Internet...
  • Page 149 FO-IS125N 3. Click Firmware Update in the menu pane. Then the below page will be shown. If it says that the machine is not ready, please retry from step 1. 4. Click Browse button, choice the new firmware file and click Open button. Then the below page will b shown. 5.
  • Page 150 FO-IS125N 6. A few minutes later, the device will restart automatically. 7. After the machine restarts, the below page will be shown. 7 – 5...

  • Page 151: Parts Guide

    FO-IS125N PartsGuide PARTS GUIDE No. 00ZFIS125NSME FACSIMILE FO-IS125N MODEL MODEL SELECTION CODE DESTINATION FO-IS125N U.S.A. CONTENTS Cabinet,etc. Packing material & Accessories Operation panel unit/Document Control PWB unit guide upper unit Power supply PWB unit Scanner frame unit [10] High voltage PWB unit Paper happer unit [11] Operation panel PWB unit Printer drive unit...
  • Page 152 FO-IS125N [1] Cabinet,etc. 49 52...
  • Page 153 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [1] Cabinet,etc. Hook switch PWB unit DCEKP420DXH01 Control PWB unit (within ROM) DCEKC582XXH01 PU roller ass'y CROLR2566XH01 Handset holder, top GCABA2493XHSA Handset holder, bottom GCABB2494XHSA Hook switch lever MLEVP2441XHZA Hook switch cable QCNWN307DXHZZ Bottom cabinet GCABB2495XHSA...
  • Page 154 FO-IS125N [2] Operation panel unit/Document guide upper unit...
  • Page 155 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [2] Operation panel unit/Document guide upper unit Separate rubber LPLTG3469XHZZ Separate plate LPLTP3175XHZA Sub feed plate,left LPLTP3257XHZL Sub feed plate,right LPLTP3257XHZR Feed plate LPLTP3492XHZZ Original sensor lever MLEVP2444XHZZ Front sensor lever MLEVP2445XHZZ Front sensor lever spring MSPRD3632XHZZ...
  • Page 156 FO-IS125N [3] Scanner frame unit...
  • Page 157 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] Scanner frame unit TX drive frame unit CFRM-2285XH01 TX drive frame LFRM-2285XHZZ Radiator plate LPLTM3470XHZZ Reduction gear,16/28Z NGERH2639XHZZ Reduction gear,19/25Z NGERH2702XHZZ Reduction gear,20/77Z NGERH2718XHZZ Reduction gear,25/30Z NGERH2720XHZZ Scanner motor RMOTS2213XHZZ Exit roller ass'y CROLP2499XH01 LBSHP2174XHZZ...
  • Page 158 FO-IS125N [4] Paper happer unit PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [4] Paper happer unit Separate pad LPLTG3476XHZZ Rotation plate LPLTM2924XHFW Separate plate LPLTP3475XHZZ Release plate LPLTP3483XHZZ Separate spring MSPRC3702XHZZ Coil spring MSPRC3703XHZZ RP release spring MSPRT3718XHZZ RP release gear,left NGERH2365AXZZ RP release gear, right NGERH2754XHZZ...
  • Page 159 FO-IS125N [5] Printer drive unit...
  • Page 160 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [5] Printer drive unit Printer drive frame LFRM-2286XHZZ Printer drive bracket LPLTM3471XHZZ Planet lever B MLEVP2409XHZZ ASF release lever MLEVP2446XHZZ Planet gear spring MSPRC2735XHZZ Latch gear spring MSPRC3528XHZZ OPC earth spring MSPRC3690XHZZ Coupling spring MSPRC3691XHZZ...
  • Page 161 FO-IS125N [6] Fusing unit...
  • Page 162 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [6] Fusing unit Fuse holder LHLDZ2297XHZZ Fuse sheet PSHEP3853XHZZ Fuse sponge PSPO-2024XHZZ Fuse-2 QFS-T2027XHZZ Band (100mm) LBNDJ2006XHZZ Heat roller bearing 1 LBSHP2162XHZZ Heat roller bearing 2 LBSHP2167XHZZ FU bearing LBSHP2168XHZZ FU frame,rear LFRM-2265XHZZ LFRM-2266XHZZ FU frame,front...
  • Page 163 FO-IS125N [7] Packing material & Accessories...
  • Page 164 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [7] Packing material & Accessories CD-ROM UDSKA2072XHZZ Setup guide TCADH3943XHZZ Rapid key labels TLABP720KXHZZ Quick reference guide TCADH3984XHZZ Warranty sheet TGANE2417XHZZ Polyethylene bag SSAKA2003XHZZ Document exit tray 1 LPLTP3486XHSA Document exit tray 2 LPLTP3487XHSA Polyethylene bag SPAKP420DXHZZ...
  • Page 165 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] Control PWB unit Capacitor(25WV 1000PF) [C125] VCKYCZ1EB102K Capacitor(25WV 10PF) [C126] VCCCCZ1EH100D Capacitor(16WV 0.1µ F) [C127] VCKYCZ1CF104Z Capacitor(16WV 0.1µ F) [C128] VCKYCZ1CF104Z Capacitor(16WV 0.1µ F) [C129] VCKYCZ1CF104Z VCKYCZ1CF104Z Capacitor(16WV 0.1µ F) [C130] Capacitor(16WV 0.1µ...
  • Page 166 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] Control PWB unit Capacitor(16WV 0.01µ F) [C804] VCKYCZ1CB103K Capacitor(10WV 10µ F) [C805] VCKYTV1AF106Z Capacitor(16WV 0.1µ F) [C806] VCKYCZ1CF104Z Capacitor(16WV 0.1µ F) [C807] VCKYCZ1CF104Z Capacitor(16WV 0.1µ F) [C808] VCKYCZ1CF104Z VCKYCZ1CF104Z Capacitor(16WV 0.1µ F) [C809] Capacitor(10WV 10µ...
  • Page 167 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] Control PWB unit Connector(5pin) [CNPM] QCNCM2666XH0E Connector(19pin) [CNPN] QCNCW2556SC1I Connector(3pin) [CNPOUT] QCNCM7014SC0C Connector(10pin) [CNPW] QCNCM2743XH1J Connector(2pin) [CNRTH] QCNCM2442SC0B QCNCM7014SC0B Connector(2pin) [CNSL] Connector(2pin) [CNSP] QCNCM2666XH0B Connector(5pin) [CNTEL] QCNCM2694XH0E Connector(4pin) [CNTNR] QCNCM2401SC0D Connector(4pin) [CNTXM] QCNCM2666XH0D...
  • Page 168 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] Control PWB unit Resistor(1/16W 2.2MΩ ± 5%) [R111] VRS-CZ1JB225J Resistor(1/16W 7.5KΩ ± 1%) [R112] VRS-CZ1JB752F Resistor(1/16W 0Ω ± 5%) [R113] VRS-CZ1JB000J Resistor(1/16W 0Ω ± 5%) [R115] VRS-CZ1JB000J Resistor(1/16W 2.2KΩ ± 5%) [R116] VRS-CZ1JB222J Resistor(1/16W 100KΩ...
  • Page 169 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] Control PWB unit Resistor(1/16W 33Ω ± 5%) [R709] VRS-CZ1JB330J Resistor(1/16W 1MΩ ± 5%) [R800] VRS-CZ1JB105J Resistor(1/16W 100Ω ± 5%) [R801] VRS-CZ1JB101J Resistor(1/16W 330Ω ± 5%) [R802] VRS-CZ1JB331J Resistor(1/10W 12KΩ ± 1%) [R803] VRS-TV2AB123F Resistor(1/10W 0Ω...
  • Page 170 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] Control PWB unit Resistor(1/16W 0Ω ± 5%) [R1227] VRS-CY1JB000J Resistor(1/16W 10KΩ ± 5%) [R1229] VRS-CZ1JB103J Resistor(1/8W 0Ω ± 5%) [R1231] VRS-TP2BD000J Resistor(1/8W 100Ω ± 5%) [R1232] VRS-TP2BD101J Resistor(1/16W 1KΩ ± 5%) [R1233] VRS-CZ1JB102J Resistor(1/16W 0Ω...
  • Page 171 FO-IS125N PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [9] Power supply PWB unit Wire(7.5mm) [J109] 0KYW0000AQ007 Wire(10mm) [J110] 0KYW0000AQ010 Wire(15mm) [J111] 0KYW0000AQ015 Coil(0R7A193F20A) [L1] 0KYL1179JL193 Coil(SN8LP-240JA) [L3] 0KYL1120RS400 0KYD7102AR4R0 NTC thermistor(NTPA74R0) [NTC1] Optical isolater(PS2581AL1) [PC1] 0KYH7152AS001 Optical isolater(TLP363JF) [PC2] 0KYH7151AS001 Optical isolater(PS2581AL1) [PC3]...
  • Page 172 FO-IS125N INDEX PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK LPLTP3493XHZZ 3-36 [ C ] LX-BZ0956XHZ7 6-B1 CCASP2204XH01 2-901 LX-BZ2138XHZ7 5-B1 CCNWN346CXH01 1-14 " 6-B2 CFRM-2265XH04 6-901 LX-BZ2205XHZ7 3-B4 CFRM-2285XH01 LX-BZ2222XHZ7 1-B6 CFRM-2286XH01 5-901 "...
  • Page 173 FO-IS125N PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK NGERH2639XHZZ QCNCM2666XH0E 8-225 NGERH2641XHZZ 3-21 QCNCM2666XH0G 8-217 NGERH2670XHZZ 5-18 QCNCM2694XH0C 8-218 NGERH2677XHZZ 1-26 QCNCM2694XH0E 8-219 NGERH2678XHZA 6-26 " 8-232 NGERH2679XHZZ 6-27 QCNCM2743XH1J 8-228 NGERH2680XHZZ 6-28 QCNCM7014SC0B 8-230 NGERH2702XHZZ...
  • Page 174 FO-IS125N PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK SPAKA529HXHZZ 7-18 " 8-167 SPAKA623HXHZZ 7-19 " 8-176 SPAKC508HXHTZ 7-12 VCKYCZ1CB223K 8-159 SPAKP274HXHZZ 7-11 " 8-182 SPAKP420DXHZZ 7-10 VCKYCZ1CF104Z 8-32 SSAKA2003XHZZ " 8-33 SSAKA596HXHZZ 7-22 "...
  • Page 175 FO-IS125N PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK " 8-67 " 8-16 " 8-71 " 8-17 " 8-97 " 8-19 " 8-98 " 8-20 " 8-100 VRS-CG1JF103J 8-18 " 8-101 " 8-21 " 8-102 "...
  • Page 176 FO-IS125N PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK VRS-CZ1JB102J 8-337 " 8-413 " 8-376 VRS-CZ1JB331J 8-398 " 8-401 VRS-CZ1JB332J 8-330 " 8-438 " 8-382 " 8-469 " 8-466 " 8-477 " 8-470 " 8-484 VRS-CZ1JB333J 8-389...
  • Page 177 FO-IS125N PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK 0KYC10A9RQ102 9-16 0KYR3123TC393 9-98 0KYC10A9RQ221 " 9-99 0KYC1131EC101 9-10 " 9-100 0KYC1133EC104 9-15 " 9-101 " 9-19 0KYR3126TC184 9-81 0KYC1330EC103 " 9-82 " 9-12 0KYR3133AC100 9-95 "...
  • Page 178 EndPage FO-IS125N COPYRIGHT © 2007 BY SHARP CORPORATION ALL RIGHTS RESERVED. No Part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying , recording, or otherwise, without prior written permission of the publisher.

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