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Toshiba 4511, 3511 manual PC Boards

Models: 3511 4511

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19. PC BOARDS

(1) PWA-F-SYS

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November 2003 © TOSHIBA TEC

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e-STUDIO3511/4511 PC BOARDS

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Toshiba 4511, 3511 manual PC Boards

Contents

STUDIO3511/4511 Toshiba TEC Corporation Service of Machines General Precautions Regarding the InstallationMain Service Parts for Safety Contents Control circuit for the exposure lamp Control Panel10-1 10.110.2 10-512-1 12.112.2 12.315-1 15.115.2 15.3STUDIO3511/4511 Contents November 2003 Toshiba TEC Specifications SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIESADU PFP LCF System copy speedTo 550 sheets 64-80 g/m2 17-22 lb. Bond Automatic duplexing unit Stackless/switchback typeSheets 64-80 g/m2 17-22 lb. Bond M2 17-22 lb. Bond718 Accessories Supplies OptionsSTAPLE-2000 System ListRadf STAPLE-600STUDIO3511/4511 Specifications November 2003 Toshiba TEC Sectional View Outline of the MachineFront side view Drum cleaning blade Recovery bladeDrum cleaner brush Toner recovery augerRear side view Drive system Scan motor Drum cleaner brush motorMain motor Transport motorUnit construction Electric Parts LayoutFront side A4 series Scanner unit Motor, sensor, lampLT series EXPDH1 Switch, PC board, heater, thermostat, other partASD/AUD/CND/SAD/TWD models Standard NAD/MJD models Option Control panel unitProcess unit Motor, sensor, switch, clutch, solenoid S25 S26 M13 Front side Motor, switchLaser unit Transport unit Paper feeder unitCLT3 CLT5Automatic duplexing unit Bypass unitSFB CLT6 SOL3 ADU CLT7Drive unit Fuser unitLGC SYS PC board unitHDD NIC BRK Symbols and Functions of Various Components Sensors and switches CCL-R-POS-SW CCL-F-POS-SWCST-U-TRY-SNR CST-L-TRY-SNRSolenoids Electromagnetic clutchesPC boards Thermistors and thermostats Lamps and heatersOthers Transformer24GeneralDescription Function of each board CCD board Construction of boards Construction diagram of boardsPage HVT Covers Front cover / Toner bag Disassembly and Replacement of Covers and PC boardsReceiving tray Front lower cover Tray back coverFront right cover Left coverLeft upper cover Left rear coverFront upper cover Right upper coverRight rear cover IH terminal coverRight rear hinge cover Right lower coverRight front hinge cover Rear coverUpper rear cover LGC board PC boards Logic PC board LGC board A-1 LGC board caseHard disk HDD System control PC board case SYS board case NIC board / System control PC board SYS board Remove 4 screws and take off the SYS board caseHigh-voltage transformer Power supply unitFlow Fuse board FUS board Noise filterOptions MR-3015 Reversing Automatic Document Feeder Radf Driving PC board DRV boardPage KD-1011 Paper Feed Pedestal PFP Heater is installedKD-1012 Large Capacity Feeder LCF Page Lift up the equipment and take off the LCF MJ-1022 Hanging finisher When PFP/LCF is not installedRemove 2 screws Lift up the finisher and take it off When PFP/LCF is installedPage MJ-1023 Console finisher MJ-1024 Console finisher Page MJ-6004 Hole punch unit Page KN-3511 Bridge unit Remove 2 screws Lift up the punch unit and take it offNovember 2003 Toshiba TEC Expression of Colors and 4-Step Copy Process Copy ProcessPhotocon General Description of Copying ProcessDetails of Copying Process CCD board White background Image is not Developed Photoconductive Photoconductive Layer Aluminum Base Blade cleaning Recovery blade Drum rotation List of Copying Process Conditions Pressure roller Silicon sponge STUDIO3511/4511 Copy Process November 2003 Toshiba TEC Overview of Operation General OperationDescription of Operation Warming-upDrawer feed copying Upper drawer paper feeding Ready ready for copyingPage Page Scan motor fwd Interruption copying Bypass feed copyingTypes of abnormality Detection of AbnormalityDescription of abnormality A-1 Add paper STUDIO3511/4511 General Operation November 2003 Toshiba TEC Approx 1.2 seconds Registration clutch turned on ↓ Approx 1.2 secPaper jam E010 → The copying operation is Stopped Registration clutch turned OFF Exit sensor detects jamming of the trailing edge PaperAfter approx 1.3 seconds Paper jam E020 → The copying operation isNovember 2003 Toshiba TEC STUDIO3511/4511 General Operation Power on to ready Flow ChartReady Automatic feed copying Main charger on YES Control Panel and Display Panel Control PanelItems Shown on the Display Panel Display Tray Full Ready Saddle StitchChange Drawer To Correct Paper Size CopyingLarge Capacity Feeder Cannot Punch Check PaperThis Size Paper Counter DepartmentTo Correct Media Type Press Basic Radf Structure Dot matrix LCD circuitFrame Data TransmissionLoad Frame Method of LED display ex Displaying Copy LED display circuitStopper Disassembly and ReplacementSlide the stopper and pull it out November 2003 Toshiba TEC STUDIO3511/4511 Control Panel Remove 16 screws and take off the KEY board Function ScannerConstruction Mirror-2 Mirror-3 Scan motor PS-ACC-350 Scanning drive circuitInput/output signals Onno YES Initialization at power-ONOFF YES On no YESGeneral description Control of Exposure LampPWA-CCD CCD PWA-CCDPWA-SLG CPUExposure lamp Control circuit for the exposure lamp Opto-electronic conversion General Description of CCD ControlShading correction Principle of original size detection Automatic Original Size Detection CircuitProcess of detection of original size APS-1 APS-2 APS-3APS-C APS-R APS-2 APS-3 APS-C APS-R APS-1 APS-2 APS-3ST-R Original LEDPhototransistor Lens cover Original glassSLG board cooling fan LT series Automatic original detection sensor APS sensor A4 seriesLens unit Carriages-1 Carriage-1 Carriage Refer to the Service Handbook for more details Carriage home position sensor Platen sensorScanning section control PC board SLG board General Description Image ProcessingFollowings are the boards used for image processing CCD -201 shows the image processing section of this equipment ConfigurationAsic Asic ACSSYS Board PWA-F-SYS-350 FeaturesExample Functions of image processing circuit’ = + b + Example Reduction Example EnlargementPaper November 2003 Toshiba TEC STUDIO3511/4511 Image Processing Laser Driving PC Board LDR Board LGC Board PWA-F-LGC-350Laser Optical Unit Writing Section Overview Structure STUDIO3511/4511 Laser Optical Unit November 2003 Toshiba TEC Deviation STUDIO3511/4511 Laser Optical Unit November 2003 Toshiba TEC Laser power comparison circuit Laser driver Circuit Constant Polygonal motor reference clock signal Polygonal motor ON/OFF signalLaser Unit Cooling Fan Polygonal MotorLaser optical unit Laser unit cooling fan Drive System Construction Main MotorDrive circuit of main motor Signal level of motor circuitTransport Motor Drive circuit of transport motor Developer Motor Developer motor rotational direction signal Developer motor on signalDeveloper motor reference clock signal Normal Out of control Developer motor PLL signalDeveloper motor drive unit Remove 2 screws and take off the developer motor Developer motorBlack developer lifting clutch Transport motor drive unit Setscrew Transport motor drive unit Connector Main motor drive unit Tension plate Motor STUDIO3511/4511 Drive System November 2003 Toshiba TEC General Descriptions Paper Feeding SystemPage Paper Feeding Section Sectional View Front side Paper Feeding Section Drive System Rear side Operation of bypass pickup roller Operation of drawer pickup roller Separation of paper Ready status General operation From power-ON to ready statusBypass feeding Drawer feedingD-1 Lower drawer IN1 IN2 Brake CCW Drive Circuit of Tray-up MotorStop Bypass unit A-1 Bypass unit Bypass tray slide guide width detection PC board Bypass pickup roller Bypass transport rollerBypass paper sensor Bypass pickup solenoidBypass separation roller Bypass feed rollerRemove the arbor, shaft and spring Lower drawer feed sensor/Side cover opening/closing switchBypass feed sensor Upper drawer feed sensor/Registration sensor Registration roller Feed clutch Drawer feeding unit E-1 Drawer feeding unitSeparation roller Remove 1 screw and take off the separation roller holderCLUTCH-6-L Pickup rollerFeed roller Remove the pulley, one-way clutch and 3 E-rings6Drawer tray-up sensor and Drawer empty sensor Drawer paper stock sensorTray drive unit Tray drive unitRegistration guide Lower transport clutch Low/High speedMiddle guide Drum Related Section Functions Page IC7 Output Control Circuits of High-Voltage TransformerCPU Drum Temperature Detection CircuitTemperature/Humidity Sensor Operation Charger Wire CleanerDrive circuit Cleaner unit Cleaner unit Main charger grid Main charger unit B-1 Main charger unitWire pad Charger wireRemove 1 screw and take off the pad guide Drum Remove the baseRecovery blade Cleaner Drum cleaning bladeDrum cleaner brush Discharge LED unit F-1 Discharge LED Drum thermistorRemove the discharge LED Charger cleaner detection switch Charger cleaner motorToner bag full detection sensor-2 Ozone filter Temperature/Humidity sensorOzone exhaust fan Latch Page Developer Unit Color auto-toner sensor Mixer Developer sleeve General descriptions Black Toner Cartridge Drive UnitToner motor Functions Black Developer UnitBlack developer unit drive section LCA301-1 Black auto-toner sensor circuitConverter Magnetic circuit STUDIO3511/4511 Developer Unit November 2003 Toshiba TEC Black developer unit lifting mechanism Color Developer Unit Gear G21 Color developer unit drive sectionColor auto-toner sensor circuit Page Color toner supply CDVDON-0 CDVAON-0 High-Voltage Transformer Output Control CircuitDeveloper material Black developer unit A-1 Black developer unitAuto-toner sensor Pour the developer materialDoctor blade Developer sleeve Remove 2 screws and take off the doctor bladeMixer Color developer unit B-1 Developer material Take off the mixer from the hole of front sideDischarge the developer material Pour the developer material Gear assembly Procedure for replacing an oil seal Take off the black developer toner supply unit .7 K Black developer lifting unitBlack toner supply unit Remove 2 screws and take off the cleaner rail stayCartridge switch with the whole bracket Black toner supply auger unit Remove 2 screws and take off the toner motorSTUDIO3511/4511 Developer Unit November 2003 Toshiba TEC Revolver Unit STUDIO3511/4511 Revolver Unit November 2003 Toshiba TEC Drive of Revolver Unit Revolver motor Revolver Motor Drive CircuitHome position detection OperationEscape position movement During warming-upDuring image quality control Color developer unit Color toner cartridgeRear Front Color toner cartridge sensorRemove 1 screw and take off the color toner cartridge sensor Revolver home position sensor Revolver unit Lock lever Remove 5 screws and take off the bracket Internal cooling fan Transfer Unit STUDIO3511/4511 Transfer Unit November 2003 Toshiba TEC Page Outline of 2nd transfer Outline of 1st transferLCA-301-1 High-Voltage Power Supply1000V PWATransfer belt unit Loosen 3 screws and take off the bracket Transfer belt Stand plate short 1st transfer roller Transfer belt home position sensor-2 Transfer belt home position sensor-1Transfer belt cleaning unit Remove 1 screw and take off the bracket on the front side Conductive tape Harness clamp Transfer belt cleaner auger motor 2nd transfer unit 2nd transfer roller2nd transfer roller contact clutch Paper clinging detection sensor 2nd transfer roller position detection sensorPaper clinging detection sensor Bracket Page Principle of the Sensor Image Quality ControlYES Flow Chart of Control ProcedureVarious image forming conditions Image quality sensor / Image quality sensor Shutter solenoid Fuser Unit / Paper Exit Section Functions Page Heater Control Circuit ConfigurationHeating principle of IH Heater Book Diagram of High Frequency Power SupplyImage of Current Flowing form a to B +5VSW IH control circuit interfaceIH2 on IH1 onOFF For ASD, AUD, CNDFAX Control of the surface temperature of the fuser belt Temperature detection sectionEnergy Saver Reference PC4/AN4 Condtion Priority of error checking Abnormality in the IH control circuit IH error Exit Motor Drive Control Circuit of Exit MotorOil roller Rear side Cleaning rollerFuser roller / Fuser belt guide IH coilBearing Fuser belt guide Fuser belt Separation finger Separation finger unit Thermostat Pressure rollerThermistor Remove 2 screws and take off the thermostat from the bracketExit sensor / Exit finger / Transport guide Exit roller IH control board cooling fan IH control PC board IH boardScraper FlowAutomatic Duplexing Unit ADU Description of Operations Page Page Page Unit msec EquipmentADU entrance sensor ADU exit sensor ADU clutch ADU motor Exit sensor Registration sensor Registration clutchDrive of ADU Yes Command signal Operation of DC Output Circuits Power Supply UnitOutput Channel November 2003 Toshiba TEC STUDIO3511/4511 Power Supply Unit Fuse Charger cleaner motor Power supply Power supply cooling fanBridge unit +24VD2 F54A Semi time-lag +24VD4Toshiba Configuration of Power Supply UnitPWR-DN Sequence of Power SupplyPWR-EN Scanner AC Wire HarnessSTUDIO3511/4511 Power Supply Unit November 2003 Toshiba TEC PC Boards PWA-F-LGC PWA-F-SLG PWA-F-CCD PWA-F-SDV PWA-F-DRV PWA-F-ADU PWA-F-LDR PWA-F-SNSPWA-F-DSP PWA-F-KEY NAD/SAD/TWD models Standard PWA-F-FILPWA-F-FUS ASD/AUD/CND models Standard, MJD model Option STUDIO3511/4511 PC Boards November 2003 Toshiba TEC Page Kanda NISHIKI-CHO, CHIYODA-KU, TOKYO, 101-8442 Japan