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Toshiba manual STUDIO3511/4511 Developer Unit November 2003 Toshiba TEC

Models: 3511 4511

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Specification Install Main Service Parts for Safety Flow Chart Input/output signals IH error Charger Wire Cleaner Configuration Accessories Command signal

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e-STUDIO3511/4511 DEVELOPER UNIT

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November 2003 © TOSHIBA TEC

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Toshiba manual STUDIO3511/4511 Developer Unit November 2003 Toshiba TEC

Page 239 Page 241

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Contents

STUDIO3511/4511 Toshiba TEC Corporation General Precautions Regarding the Installation Service of Machines Main Service Parts for Safety Contents Control Panel Control circuit for the exposure lamp 10.1 10-110.2 10-5 12.1 12-112.2 12.3 15.1 15-115.2 15.3 STUDIO3511/4511 Contents November 2003 Toshiba TEC SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES Specifications System copy speed ADU PFP LCF Automatic duplexing unit Stackless/switchback type To 550 sheets 64-80 g/m2 17-22 lb. BondSheets 64-80 g/m2 17-22 lb. Bond M2 17-22 lb. Bond 718 Accessories Options Supplies System List STAPLE-2000Radf STAPLE-600 STUDIO3511/4511 Specifications November 2003 Toshiba TEC Outline of the Machine Sectional ViewFront side view Recovery blade Drum cleaning bladeDrum cleaner brush Toner recovery auger Rear side view Drive system Drum cleaner brush motor Scan motorMain motor Transport motor Electric Parts Layout Unit constructionFront side Scanner unit Motor, sensor, lamp A4 seriesLT series EXP Switch, PC board, heater, thermostat, other part DH1ASD/AUD/CND/SAD/TWD models Standard NAD/MJD models Option Control panel unit Process unit Motor, sensor, switch, clutch, solenoid Motor, switch S25 S26 M13 Front sideLaser unit Paper feeder unit Transport unitCLT3 CLT5 Bypass unit Automatic duplexing unitSFB CLT6 SOL3 ADU CLT7 Fuser unit Drive unit PC board unit LGC SYSHDD NIC BRK Symbols and Functions of Various Components Sensors and switches CCL-F-POS-SW CCL-R-POS-SWCST-U-TRY-SNR CST-L-TRY-SNR Electromagnetic clutches Solenoids PC boards Lamps and heaters Thermistors and thermostats Transformer Others 24GeneralDescription Construction of boards Construction diagram of boards Function of each board CCD boardPage HVT Disassembly and Replacement of Covers and PC boards Covers Front cover / Toner bagReceiving tray Tray back cover Front lower coverFront right cover Left cover Left rear cover Left upper coverFront upper cover Right upper cover IH terminal cover Right rear cover Right lower cover Right rear hinge coverRight front hinge cover Rear cover Upper rear cover PC boards Logic PC board LGC board A-1 LGC board case LGC boardHard disk HDD System control PC board case SYS board case Remove 4 screws and take off the SYS board case NIC board / System control PC board SYS board Power supply unit High-voltage transformerFlow Noise filter Fuse board FUS board Driving PC board DRV board Options MR-3015 Reversing Automatic Document Feeder RadfPage Heater is installed KD-1011 Paper Feed Pedestal PFP KD-1012 Large Capacity Feeder LCF Page MJ-1022 Hanging finisher When PFP/LCF is not installed Lift up the equipment and take off the LCF When PFP/LCF is installed Remove 2 screws Lift up the finisher and take it offPage MJ-1023 Console finisher MJ-1024 Console finisher Page MJ-6004 Hole punch unit Page Remove 2 screws Lift up the punch unit and take it off KN-3511 Bridge unit November 2003 Toshiba TEC Copy Process Expression of Colors and 4-Step Copy Process General Description of Copying Process Photocon Details 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 General Operation Overview of OperationDescription of Operation Warming-up Ready ready for copying Drawer feed copying Upper drawer paper feedingPage Page Scan motor fwd Bypass feed copying Interruption copying Detection of Abnormality Types of abnormalityDescription of abnormality A-1 Add paper STUDIO3511/4511 General Operation November 2003 Toshiba TEC Registration clutch turned on ↓ Approx 1.2 sec Approx 1.2 secondsPaper jam E010 → The copying operation is Stopped Exit sensor detects jamming of the trailing edge Paper Registration clutch turned OFFAfter approx 1.3 seconds Paper jam E020 → The copying operation is November 2003 Toshiba TEC STUDIO3511/4511 General Operation Flow Chart Power on to ready Ready Automatic feed copying Main charger on YES Control Panel Control Panel and Display Panel Items Shown on the Display Panel Display Saddle Stitch Tray Full ReadyChange Drawer To Correct Paper Size Copying Check Paper Large Capacity Feeder Cannot PunchThis Size Paper Department Counter To Correct Media Type Press Basic Radf Dot matrix LCD circuit Structure Data Transmission FrameLoad Frame LED display circuit Method of LED display ex Displaying Copy Disassembly and Replacement StopperSlide the stopper and pull it out November 2003 Toshiba TEC STUDIO3511/4511 Control Panel Remove 16 screws and take off the KEY board Scanner Function Construction Mirror-2 Mirror-3 Scan motor Scanning drive circuit PS-ACC-350 Input/output signals Initialization at power-ON Onno YESOFF YES On no YES Control of Exposure Lamp General descriptionPWA-CCD CCD PWA-CCDPWA-SLG CPU Exposure lamp Control circuit for the exposure lamp General Description of CCD Control Opto-electronic conversionShading correction Automatic Original Size Detection Circuit Principle of original size detectionProcess of detection of original size APS-3 APS-1 APS-2 APS-C APS-R APS-1 APS-2 APS-3 APS-C APS-R APS-2 APS-3ST-R Original LEDPhototransistor Original glass Lens coverSLG board cooling fan Automatic original detection sensor APS sensor A4 series LT series Lens unit Carriages-1 Carriage-1 Carriage Refer to the Service Handbook for more details Platen sensor Carriage home position sensorScanning section control PC board SLG board Image Processing General DescriptionFollowings are the boards used for image processing CCD Configuration -201 shows the image processing section of this equipmentAsic Asic ACS Features SYS Board PWA-F-SYS-350 Functions of image processing circuit Example ’ = + b + Example Enlargement Example Reduction Paper November 2003 Toshiba TEC STUDIO3511/4511 Image Processing LGC Board PWA-F-LGC-350 Laser Driving PC Board LDR Board Laser 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 ON/OFF signal Polygonal motor reference clock signalLaser Unit Cooling Fan Polygonal Motor Laser optical unit Laser unit cooling fan Drive System Main Motor Construction Signal level of motor circuit Drive circuit of main motor Transport Motor Drive circuit of transport motor Developer Motor Developer motor on signal Developer motor rotational direction signalDeveloper motor reference clock signal Normal Out of control Developer motor PLL signal Developer motor drive unit Developer motor Remove 2 screws and take off the 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 Paper Feeding System General DescriptionsPage 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 General operation From power-ON to ready status Ready statusBypass feeding Drawer feedingD-1 Lower drawer Drive Circuit of Tray-up Motor IN1 IN2 Brake CCWStop Bypass unit A-1 Bypass unit Bypass tray slide guide width detection PC board Bypass transport roller Bypass pickup roller Bypass pickup solenoid Bypass paper sensor Bypass feed roller Bypass separation roller Lower drawer feed sensor/Side cover opening/closing switch Remove the arbor, shaft and springBypass feed sensor Upper drawer feed sensor/Registration sensor Registration roller Drawer feeding unit E-1 Drawer feeding unit Feed clutchSeparation roller Remove 1 screw and take off the separation roller holder Pickup roller CLUTCH-6-L Remove the pulley, one-way clutch and 3 E-rings Feed roller6Drawer tray-up sensor and Drawer empty sensor Drawer paper stock sensor Tray drive unit Tray drive unit Lower transport clutch Low/High speed Registration guide Middle guide Drum Related Section Functions Page Output Control Circuits of High-Voltage Transformer IC7 Drum Temperature Detection Circuit CPU Temperature/Humidity Sensor Charger Wire Cleaner Operation Drive circuit Cleaner unit Cleaner unit Main charger unit B-1 Main charger unit Main charger grid Charger wire Wire padRemove 1 screw and take off the pad guide Remove the base Drum Cleaner Drum cleaning blade Recovery bladeDrum cleaner brush Drum thermistor Discharge LED unit F-1 Discharge LEDRemove the discharge LED Charger cleaner motor Charger cleaner detection switch Toner bag full detection sensor-2 Temperature/Humidity sensor Ozone filterOzone exhaust fan Latch Page Developer Unit Color auto-toner sensor Mixer Developer sleeve Black Toner Cartridge Drive Unit General descriptionsToner motor Black Developer Unit Functions Black developer unit drive section Black auto-toner sensor circuit LCA301-1Converter Magnetic circuit STUDIO3511/4511 Developer Unit November 2003 Toshiba TEC Black developer unit lifting mechanism Color Developer Unit Color developer unit drive section Gear G21 Color auto-toner sensor circuit Page Color toner supply High-Voltage Transformer Output Control Circuit CDVDON-0 CDVAON-0 Black developer unit A-1 Black developer unit Developer material Pour the developer material Auto-toner sensorDoctor blade Remove 2 screws and take off the doctor blade Developer sleeve Mixer Take off the mixer from the hole of front side Color developer unit B-1 Developer material Discharge the developer material Pour the developer material Gear assembly Procedure for replacing an oil seal Black developer lifting unit Take off the black developer toner supply unit .7 K Remove 2 screws and take off the cleaner rail stay Black toner supply unit Cartridge switch with the whole bracket Remove 2 screws and take off the toner motor Black toner supply auger unit STUDIO3511/4511 Developer Unit November 2003 Toshiba TEC Revolver Unit STUDIO3511/4511 Revolver Unit November 2003 Toshiba TEC Drive of Revolver Unit Revolver Motor Drive Circuit Revolver motor Operation Home position detectionEscape position movement During warming-up During image quality control Color toner cartridge Color developer unit Color toner cartridge sensor Rear Front Remove 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 1st transfer Outline of 2nd transfer High-Voltage Power Supply LCA-301-11000V PWA Transfer belt unit Loosen 3 screws and take off the bracket Transfer belt Stand plate short 1st transfer roller Transfer belt home position sensor-1 Transfer belt home position sensor-2 Transfer 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 roller 2nd transfer unit 2nd transfer roller contact clutch 2nd transfer roller position detection sensor Paper clinging detection sensor Paper clinging detection sensor Bracket Page Image Quality Control Principle of the Sensor Flow Chart of Control Procedure YES Various image forming conditions Image quality sensor / Image quality sensor Shutter solenoid Fuser Unit / Paper Exit Section Functions Page Configuration Heater Control Circuit Book Diagram of High Frequency Power Supply Heating principle of IH HeaterImage of Current Flowing form a to B IH control circuit interface +5VSWIH2 on IH1 on For ASD, AUD, CND OFFFAX Temperature detection section Control of the surface temperature of the fuser belt Energy Saver Reference PC4/AN4 Condtion Priority of error checking Abnormality in the IH control circuit IH error Control Circuit of Exit Motor Exit Motor Drive Oil roller Cleaning roller Rear side IH coil Fuser roller / Fuser belt guide Bearing Fuser belt guide Fuser belt Separation finger Separation finger unit Pressure roller Thermostat Remove 2 screws and take off the thermostat from the bracket Thermistor Exit sensor / Exit finger / Transport guide Exit roller IH control PC board IH board IH control board cooling fan Flow Scraper Automatic Duplexing Unit ADU Description of Operations Page Page Page Equipment Unit msec Exit sensor Registration sensor Registration clutch ADU entrance sensor ADU exit sensor ADU clutch ADU motor Drive of ADU Yes Command signal Power Supply Unit Operation of DC Output Circuits Output Channel November 2003 Toshiba TEC STUDIO3511/4511 Power Supply Unit Charger cleaner motor Power supply Power supply cooling fan FuseBridge unit +24VD2 F54A Semi time-lag +24VD4 Configuration of Power Supply Unit Toshiba Sequence of Power Supply PWR-DNPWR-EN AC Wire Harness Scanner STUDIO3511/4511 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-LDR PWA-F-SNS PWA-F-ADU PWA-F-DSP PWA-F-KEY PWA-F-FIL NAD/SAD/TWD models StandardPWA-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

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