Toshiba e-STUDIO555 Service Manual
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Toshiba e-STUDIO555 Service Manual

Multifunctional digital systems
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Table of Contents

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See also: Troubleshooting Manual , User Manual

SERVICE MANUAL

MULTIFUNCTIONAL DIGITAL SYSTEMS
e-STUDIO555/655/755/855
Model: DP-5550/6550/7550/8550
Publish Date: April 2009
File No. SME080016E0
R081221H1100-TTEC
Ver05_2011-05

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Summary of Contents for Toshiba e-STUDIO555

  • Page 1: Service Manual

    SERVICE MANUAL MULTIFUNCTIONAL DIGITAL SYSTEMS e-STUDIO555/655/755/855 Model: DP-5550/6550/7550/8550 Publish Date: April 2009 File No. SME080016E0 R081221H1100-TTEC Ver05_2011-05...
  • Page 2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved Under the copyright laws, this manual cannot be reproduced in any form without prior written permission of TOSHIBA TEC CORPORATION. No patent liability is assumed, however, with respect to the use of the information contained herein.
  • Page 3 GENERAL PRECAUTIONS REGARDING THE SERVICE FOR e-STUDIO555/655/755/855 The installation and service should be done by a qualified service technician. 1. Transportation/Installation When transporting/installing the equipment, employ four persons and be sure to move it by the casters while lifting the stoppers.
  • Page 4 Be sure to handle/install them properly. If these parts are short-circuited and their functions become ineffective, they may result in fatal accidents such as burnout. Do not allow a short-circuit or do not use the parts not recommended by Toshiba TEC Corporation.
  • Page 5 4. Cautionary Labels During servicing, be sure to check the rating plate and cautionary labels such as “Unplug the power cable during service”, “CAUTION. HOT”, “CAUTION. HIGH VOLTAGE”, “CAUTION. LASER BEAM”, etc. to see if there is any dirt on their surface and if they are properly stuck to the equipment.
  • Page 6 5. Disposal of the Equipment, Supplies, Packing Materials, Used Batteries and IC-RAMs Regarding the recovery and disposal of the equipment, supplies, packing materials, used batteries and IC-RAMs including lithium batteries, follow the relevant local regulations or rules. Caution: Dispose of used batteries and IC-RAMs including lithium batteries according to this manual. Attention: Se débarrasser de batteries et IC-RAMs usés y compris les batteries en lithium selon ce manuel.
  • Page 7 ALLEGEMEINE SICHERHEITSMASSNAHMEN IN BEZUG AUF DIE WARTUNG FÜR e-STUDIO555/655/755/855 Die Installation und die Wartung sind von einem qualifizierten Service- Techniker durchzuführen. 1. Transport/Installation Zum Transportieren/Installieren des Gerätes werden 4 Personen benötigt. Nur an den in der Abbildung gezeigten Stellen tragen.
  • Page 8 Sie müssen unbedingt korrekt gehandhabt und installiert werden. Wenn diese Teile kurzgeschlossen und funktionsunfähig werden, kann dies zu schwerwiegenden Schäden, wie einem Abbrand, führen. Kurzschlüsse sind zu vermeiden, und es sind ausschließlich Teile zu verwenden, die von der Toshiba TEC Corporation empfohlen sind.
  • Page 9 4. Warnetiketten Im Rahmen der Wartung unbedingt das Leistungsschild und die Etiketten mit Warnhinweisen überprüfen [z. B. „Unplug the power cable during service“ („Netzkabel vor Beginn der Wartungsarbeiten abziehen“), „CAUTION. HOT“ („VORSICHT, HEISS“), „CAUTION. HIGH VOLTAGE“ („VORSICHT, HOCHSPANNUNG“), „CAUTION. LASER BEAM“ („VORSICHT, LASER“) usw.], um sicherzustellen, dass sie nicht verschmutzt sind und korrekt am Gerät angebracht sind.
  • Page 10 5. Entsorgung des Geräts, der Verbrauchs- und Verpackungsmaterialien, alter Akkus und IC- RAMs In Bezug auf die Entsorgung und Wiederverwertung des Geräts, der Verbrauchs- und Verpackungsmaterialien, alter Akkus und IC-RAMs, einschließlich Lithiumakkus, sind die einschlägigen nationalen oder regionalen Vorschriften zu befolgen. Caution: Dispose of used batteries and IC-RAMs including lithium batteries according to this manual.

  • Page 11: Table Of Contents

    Items Shown on the Display Panel ................... 5-2 5.2.1 Display ....................... 5-2 5.2.2 Message ......................5-3 Relation between the Equipment State and Operator’s Operation ........5-8 Description of Operation ....................5-10 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTENTS...
  • Page 12 9. PROCESS RELATED SECTION .................. 9-1 Construction ........................9-1 Functions........................... 9-2 Charger Wire Cleaner Control Circuit ................9-3 9.3.1 General description.................... 9-3 9.3.2 Configuration ..................... 9-3 High-voltage Transformer Control Circuit................9-4 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTENTS...
  • Page 13 14. EXIT/REVERSE SECTION..................14-1 14.1 General Description ......................14-1 14.2 Functions......................... 14-1 14.3 Driving of Exit/Reverse section ..................14-2 14.4 Operation ........................14-2 14.5 Exit motor control circuit....................14-7 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTENTS...
  • Page 14 15.5.42 Original width detection sensor-1 (SR6) ............15-51 15.5.43 Original registration sensor (SR5) ..............15-51 15.5.44 Original exit sensor (SR12)................15-51 15.5.45 Original tray sensor (SR1) ................15-52 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTENTS...
  • Page 15 16.5 Configuration of Power Supply Unit ................16-8 16.6 AC Wire Harness ......................16-9 17. PC BOARDS ....................... 17-1 18. EXTERNAL COUNTERS .................... 18-1 18.1 Outline..........................18-1 18.2 Signal ..........................18-1 18.3 Notices ..........................18-4 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTENTS...
  • Page 16 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTENTS...

  • Page 17: Specifications/Accessories/Options/Supplies

    600 dpi × 600 dpi Writing 2400 dpi × 600 dpi Gradation Paper feeding 2 drawers + Bypass feeding + Tandem LCF + LCF (optional) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 1...
  • Page 18 Main memory 1 GB (Incl. page memory) 60 GB Account Codes 10,000 codes Department Codes 1,000 codes Warm-up time Approx. 130 sec. (Stand-alone, temperature: 20 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 2...
  • Page 19 W 698 x D 789 x H 1176 (mm) 11 76 mm 7 89 m m 698 mm Weight Approx. 202 kg (445 lb.) (equipment only) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 3...

  • Page 20: Copy

    Automatic density mode and manual density mode selectable in 11 steps [ 2 ] First copy time e-STUDIO555/655 Approx. 4.0 sec. e-STUDIO755/855 Approx. 3.5 sec. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 4...
  • Page 21 * Accuracy: Within ±2 sheets (Bypass feed) / Within ±1 sheet (Other paper sources) * Values may vary depending on its use condition and environment. * When the RADF is used, each copy speed per minute of e-STUDIO555/655/755/855 has reached 55/65/75/85 sheets. These copy speeds can be realized only in the following conditions.
  • Page 22 A4-R, B5-R, LT- Top side discharging Back side discharging B4, LG, FOLIO, Top side COMPUTER discharging Back side discharging A3, LD Top side discharging Back side discharging e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 6...
  • Page 23 A4-R, B5-R, LT- Top side discharging Back side discharging B4, LG, FOLIO, Top side COMPUTER discharging Back side discharging A3, LD Top side discharging Back side discharging © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 7...
  • Page 24 A4-R, B5-R, LT- Top side discharging Back side discharging B4, LG, FOLIO, Top side COMPUTER discharging Back side discharging A3, LD Top side discharging Back side discharging e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 8...
  • Page 25 A4-R, B5-R, LT- Top side discharging Back side discharging B4, LG, FOLIO, Top side COMPUTER discharging Back side discharging A3, LD Top side discharging Back side discharging © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 9...
  • Page 26 A4-R, B5-R, LT- Top side discharging Back side discharging B4, LG, FOLIO, Top side COMPUTER discharging Back side discharging A3, LD Top side discharging Back side discharging e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 10...
  • Page 27 A4-R, B5-R, LT- Top side discharging Back side discharging B4, LG, FOLIO, Top side COMPUTER discharging Back side discharging A3, LD Top side discharging Back side discharging © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 11...
  • Page 28 * Setting: when in the Text/Photo mode with Automatic density and APS/AMS set to OFF, or when in the sort mode with paper fed from the 1st drawer. * The Finisher, Hole punch unit and Inserter are not installed. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 12...

  • Page 29: Print

    Number of Folder 100 folders per box Number of Document 400 documents per box/folder Number of Page 200 pages per document Capacity of e-Filing 7 GB © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 13...

  • Page 30: Internet Fax

    Message size Max. 30M Byte limitation Message division Page by page [ 2 ] Internet FAX receiving Format of receive attachment TIFF-FX (Profile S, F, J) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 14...

  • Page 31: Network Fax

    Send to FTP Single TIFF, Multi-TIFF, Single PDF, Multi PDF Send to E-mail Single TIFF, Multi-TIFF, Single PDF, Multi PDF Send to I-Fax TIFF-S Send to PSTN-FAX © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 15...

  • Page 32: Accessories

    1 pc. (for CND) Envelope 1 pc. (for CND) Packing list 1 pc. (for CND) Developer material 1 pc. (for CND) Toner bottle 1 pc. (for CND) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 16...

  • Page 33: Options

    STAPLE-1800 (50 sheets stapling): 3 cases of 5000 staples and one exclusive cartridge in a package STAPLE-1900 (50 sheets stapling): 3 cases of 5000 staples in a package © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES...

  • Page 34: Supplies

    Developer D-6000 Toner cartridge PS-ZT8550 (for NAD, ARD) PS-ZT8550E (for MJD) PS-ZT6000C (for CND) PS-ZT6000D (for other) Toner bag PS-TB6510E (for MJD,) PS-TB6510 (for other) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 18...

  • Page 35: System List

    System List Fig. 1-1 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 19...
  • Page 36 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 20...

  • Page 37: Outline Of The Machine

    OUTLINE OF THE MACHINE Sectional View 2.1.1 Front view 4 drawers model A1 A2 A7 E10 E9 E8 E7 E6 Fig. 2-1 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 1...
  • Page 38 2 drawers and tandem LCF model A1 A2 A7 E10 E9 E8 E7 E6 Fig. 2-2 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 2...
  • Page 39 End fence home position sensor Reverse path roller-1 Standby side empty sensor Reverse path roller-2 Standby side mis-stacking sensor End fence stop position sensor © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 3...

  • Page 40: Rear View

    2.1.2 Rear view 4 drawers model Fig. 2-3 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 4...
  • Page 41 2 drawers and tandem LCF model Fig. 2-4 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 5...
  • Page 42 3rd drawer transport clutch 3rd drawer feed clutch 4th drawer transport clutch 4th drawer feed clutch Tandem LCF tray-up motor Tandem LCF end fence motor e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 6...

  • Page 43: Electric Parts Layout

    Electric Parts Layout [A] Scanner unit a. A4 series INV-EXP Fig. 2-5 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 7...
  • Page 44 LT series INV-EXP Fig. 2-6 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 8...
  • Page 45 Heater, thermostat THMO3 Fig. 2-7 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 9...
  • Page 46 [B] Control panel INV-LCD TCP/LCD Fig. 2-8 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 10...
  • Page 47 [C] Laser unit a. e-STUDIO555/655 LDR1 Fig. 2-9 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 11...
  • Page 48 LDR1 LDR2 Fig. 2-10 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 12...
  • Page 49 [D] Fuser related section THM3 THM2 THMO1 THM1 THMO2 IH-COIL THM4 Fig. 2-11 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 13...
  • Page 50 [E] Toner cartridge related section Fig. 2-12 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 14...
  • Page 51 [F] Toner recycle / used toner recovery unit Fig. 2-13 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 15...
  • Page 52 [G] Developer unit / drum / transfer belt unit related section a. Motor, sensor, switch, solenoid, lamp, thermistor SOL1 THM5 Fig. 2-14 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 16...
  • Page 53 Heater, thermostat, PC board THMO4 Fig. 2-15 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 17...
  • Page 54 [H] Paper transport unit CLT3 CLT2 CLT1 Fig. 2-16 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 18...
  • Page 55 Paper exit / reverse section MOT2-RV SOL2 Fig. 2-17 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 19...
  • Page 56 Equipment (left view) SW11 Fig. 2-18 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 20...
  • Page 57 [K] Equipment (right view) MOT2-MT Fig. 2-19 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 21...
  • Page 58 [L] Bypass feed unit CLT4 SOL3 Fig. 2-20 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 22...
  • Page 59 [M] Paper feeding section SOL7 CLT5 CLT6 CLT7 CLT8 CLT9 CLT10 CLT11 CLT12 S44 S43 Fig. 2-21 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 23...
  • Page 60 [N] Tandem LCF SOL8 Fig. 2-22 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 24...
  • Page 61 [O] Equipment (rear view) SYSIF RAM-S Fig. 2-23 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 25...
  • Page 62 [P] AC input section a. e-STUDIO655: JPC model BRK1 Fig. 2-24 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 26...
  • Page 63 JPC model BRK1 BRK2 Fig. 2-25 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 27...
  • Page 64 NAD model, e-STUDIO655: NAD/SAD/TWD model, e-STUDIO755/855: NAD/SAD model BRK1 Fig. 2-26 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 28...
  • Page 65 ASD/AUD/MJD/CND model, e-STUDIO655/755/855: ARD/ASD/AUD/MJD/CND model, e-STUDIO755/855: TWD model BRK1 Fig. 2-27 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 29...
  • Page 66 SWR2 SR15 SR13 SWR1 SR12 SR14 SR10 SR11 Fig. 2-28 b. Motor, fan, solenoid, PC board RADF SOLR2 SOLR3 SOLR1 Fig. 2-29 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 30...

  • Page 67: Symbols And Functions Of Various Components

    15-12 Reverse section cooling (rear side) fan-1 REV-FAN-MOT2 Cooling down the reverse section Fig. 2-17 15-12 Reverse section cooling (front side) fan-2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 31...
  • Page 68 Original exit motor Driving the original exit roller Fig. 2-29 87-9 RADF cooling fan Cools off the RADF drive section. Fig. 2-29 89-16 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 32...

  • Page 69: Sensors And Switches

    Feed cover sensor feed cover SFB-FEED-SNR Detecting the presence of the paper on the Fig. 2-20 10-23 Bypass feed sensor bypass feed unit © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 33...
  • Page 70 Detecting the paper transport at the paper Fig. 2-21 7-18 4th drawer transport feeding system of the 4th drawer sensor (Only for JPC model of all equipments) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 34...
  • Page 71 Fig. 2-28 93-2 original tray. Original tray width sensor Detects the width of the original set on the Fig. 2-28 93-12 original tray. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 35...

  • Page 72: Electromagnetic Spring Clutches

    Driving the transport roller of the 4th drawer Fig. 2-21 7-26 4th drawer transport clutch (Only for JPC model of all equipments) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 36...

  • Page 73: Solenoids

    (Only for e-STUDIO755/855) (LDR2 board) PWA-F-SNS Detecting the laser beam position Fig. 2-9 32-1A H-sync detection PC board Fig. 2-10 32-1B (SNS board) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 37...

  • Page 74: Lamps And Heaters

    THM2 THMS-C-HTR Detecting the surface temperature of the Fig. 2-11 27-6 Fuser roller center center of the fuser roller thermistor e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 38...

  • Page 75: Transformer

    Fig. 2-26 52-113 Fig. 2-27 BRK2 BREAKER2 Preventing overcurrent to the fuser unit Fig. 2-25 52-3B Breaker-2 (Only for JPC model of e-STUDIO755/855) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 39...

  • Page 76: System Block Diagram

    System Block Diagram Fig. 2-30 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 40...

  • Page 77: Installation And Replacement Of Covers

    Front right inner cover P.2-41 "[A] Front cover (Upper/Lower)"). Remove 2 screws to take off the front right inner cover. Fig. 2-33 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 41...
  • Page 78 Take off the top left cover P.2-42 "[D] Top left cover"). Remove 2 screws to take off the top rear cover. Fig. 2-36 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 42...
  • Page 79 Fig. 2-38 [H] Right rear cover Remove 2 screws and take off the right rear cover. Right rear cover Fig. 2-39 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 43...
  • Page 80 Left lower cover ( Exit cover ) Fig. 2-41 [K] Left rear cover Remove 1 screw to take off the left rear cover. Left rear cover Fig. 2-42 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 44...
  • Page 81 Loosen 1 screw fixing the ozone filter. Remove 8 screws. Then release 2 hooks to take off the rear cover. Fig. 2-43 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 45...

  • Page 82: Removal And Installation Of Options

    Unplug the power cable. Press the button to separate the Large Capacity Feeder (LCF) from the equipment. Fig. 2-46 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 46...
  • Page 83 Remove 2 fixing screws on the rear side. Screw Fig. 2-49 Remove 2 fixing screws on the front side. Screw Fig. 2-50 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 OUTLINE OF THE MACHINE 2 - 47...
  • Page 84 Note: Be careful when lifting the Large Capacity Feeder (LCF) because it is heavy. Fig. 2-51 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved OUTLINE OF THE MACHINE 2 - 48...

  • Page 85: Copy Process

    (10)Discharging: Makes the negatively-charged toner Discharges any remaining negative charge adhere to the photoconductive drum and on the drum. forms a visible image. ↓ © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 COPY PROCESS 3 - 1...

  • Page 86: Details Of Copy Process

    Time ( t ) Black area of original -300 White area of original -600 Discharge Charging process process Electric potential on the photoconductive drum Fig. 3-3 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved COPY PROCESS 3 - 2...
  • Page 87 Value of image receiving signals to be amount output Light Difference between "light " and "dark" is divided into 256 steps. Dark Fig. 3-6 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 COPY PROCESS 3 - 3...
  • Page 88 ) Toner Fig. 3-8 Bias voltage -394V (-200 to -800V) DC+AC Toner Photoconductive drum Photoconductive layer Aluminum conductive base Fig. 3-9 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved COPY PROCESS 3 - 4...
  • Page 89 2. Toner scattering occurs. 3. Background fogging occurs. Solution: No frictional electrification Replace new developer material. on the area where the toner is caked on. Fig. 3-12 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 COPY PROCESS 3 - 5...
  • Page 90 As indicated in the figure below, the life of the toner cartridge varies depending on the copy mode and coverage of originals A full block in the figure below denotes approx. 10,000 copies. Block Type of originals Fig. 3-14 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved COPY PROCESS 3 - 6...
  • Page 91 Paper movement any copy paper which fails to be separated. Transfer belt Fig. 3-17 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 COPY PROCESS 3 - 7...
  • Page 92 (Fusing) IH coil Fuser roller The toner is fixed on the paper. Separation finger Paper movement Pressure Pressure roller Fig. 3-19 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved COPY PROCESS 3 - 8...
  • Page 93 2. Cleaning blade scrapes off the residual toner on the drum. 3. The recovery blade picks up the scraped toner. Cleaning blade Drum rotation Cleaning brush Flicker Recovery blade Fig. 3-20 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 COPY PROCESS 3 - 9...
  • Page 94 All the (-) charges remaining on the photoconductive drum are conducted to the ground. ↓ The preparation for the next copy is completed. Discharge LED array Drum Fig. 3-21 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved COPY PROCESS 3 - 10...

  • Page 95: Comparison Of Copy Process To E-Studio550/650/810

    Pressure roller cleaning felt roller none Pressure roller cleaning metal roller none • Heater IH coil (Induction heating system) ← ← ON/OFF control by thermistor © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 COPY PROCESS 3 - 11...
  • Page 96 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved COPY PROCESS 3 - 12...

  • Page 97: General Operation

    Each drawer tray goes up → Initialization of the writing system The polygonal motor (M2) rotates at a high speed. (e-STUDIO755/855) The polygonal motor (M2) rotates at a low speed. (e-STUDIO555/655) The beam position is controlled. (e-STUDIO755/855) → Other The main charger cleaner operates.

  • Page 98: Ready State (Ready For Copying)

    → The exposure lamp (EXP) is turned OFF. → The registration motor (M16) is turned OFF (after the trailing edge of the paper passes the registration roller). e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved GENERAL OPERATION 4 - 2...
  • Page 99 → The rotation speed of the polygonal motor (M2) switches from a high speed to a low speed. (e-STUDIO555/655) → "READY" appears and the equipment enters the ready state. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 GENERAL OPERATION...
  • Page 100 Timing chart for copying one A4 sized sheet fed from the 1st drawer [e-STUDIO555/655] Fig. 4-1 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved GENERAL OPERATION 4 - 4...
  • Page 101 [e-STUDIO755/855] Fig. 4-2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 GENERAL OPERATION 4 - 5...

  • Page 102: Bypass Feed Copying

    → "Ready to resume job 1" appears. 4. Pressing the [START] button → The copying operation before the interruption resumes. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved GENERAL OPERATION 4 - 6...

  • Page 103: Detection Of Abnormality

    Tray goes up (the drawer empty sensor (S31, 37, 43, 49) is turned OFF). ↓ "Add paper" appears. ↓ The [START] button is disabled. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 GENERAL OPERATION 4 - 7...
  • Page 104 The clear paper symbol is displayed: E120 ↓ Copying operation is disabled. ↓ Solution: Remove the paper from the bypass tray. → The bypass paper sensor (S27) is turned OFF. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved GENERAL OPERATION 4 - 8...
  • Page 105 When a sheet of reversed paper is transported, horizontal transport sensor-1, -2 (S19, 20) or reverse sensor-1 (S23) does not detect paper within a fixed period of time. ↓ Paper jam (E511, E512, E540) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 GENERAL OPERATION 4 - 9...
  • Page 106 Check the error code displayed on the control panel when "Call for service" appears, and handle the abnormality in reference to the error code table in the Service Handbook. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved GENERAL OPERATION 4 - 10...

  • Page 107: Control Panel

    ON/OFF the power. Press the [ON/OFF] button for 1 second or more to turn ON/OFF the power of the equipment. Fig. 5-1 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL...

  • Page 108: Items Shown On The Display Panel

    Displays error code, paper jam position and paper jam release guidance, etc. Error code Message Guidance for clearing paper jams Paper jam symbols Fig. 5-3 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 2...

  • Page 109: Message

    UI is displayed operator to select the copying ([JOB STATUS] button pressed) conditions. after adding inserter paper. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL 5 - 3...
  • Page 110 CORRECT PAPER SIZE size is not in the drawer Change drawer to correct Displayed when the selected media media type type is not in the drawer e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 4...
  • Page 111 Displayed when the template stored is setting recalled by pressing [TEMPLATE] button Enter Department Code Displayed when a button is pressed while the department management setting is available © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL 5 - 5...
  • Page 112 Displayed only in Scanning Function exceeds the limits. to save the scanning data as much as Will you save stored stored at memory-full state originals? e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 6...
  • Page 113 If you want to replace the toner cartridge has become low. cartridge at this time, do so following the procedure of the Troubleshooting Guide. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL 5 - 7...

  • Page 114: Relation Between The Equipment State And Operator's Operation

    Display not changed Display not Display not changed button screen changed Press [COUNTER] Displays COUNTER Display not changed Display not Display not changed button screen changed e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 8...
  • Page 115 Press [COUNTER] Display not Display not Display not Displays Displays button changed changed changed COUNTER COUNTER screen screen © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL 5 - 9...

  • Page 116: Description Of Operation

    * CCFL: Cold Cathode Fluorescent Lamp 2. Block diagram Inverter Backlight R0 - R5 G0 - G5 B0 - R5 Panel Controller V-Sync H-Sync X Driver Enab Fig. 5-5 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 10...

  • Page 117: Led Display Circuit

    1. The transistor (Q1) connected to the LED anode is ON. 2. The transistor (Q11) connected to the LED cathode side is ON. The LED is turned ON when 1) and 2) are satisfied. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL...

  • Page 118: Disassembly And Replacement

    Fig. 5-7 Remove 2 screws and take off the control panel lower cover. Control panel lower cover Fig. 5-8 Disconnect 1 connectors. Fig. 5-9 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 12...
  • Page 119 (10) Take off 3 clamps and disconnect 1 connector. (11) Remove 2 screws, take off a USB port and then the control panel unit. Fig. 5-12 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL 5 - 13...
  • Page 120 Shielding wire Shielding wire Note: When assembling, be sure to install them in the correct order. Fig. 5-15 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 14...
  • Page 121 Take off the control panel unit. P.5-12 "[A] Control panel unit" LCD inverter board Disconnect 2 connectors of the LCD inverter board. Fig. 5-18 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL 5 - 15...
  • Page 122 Shielding wire Fig. 5-20 Disconnect 1 connector and remove 12 screws. Take off the KEY board. KEY board Fig. 5-21 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 16...
  • Page 123 Fig. 5-23 [F] Control panel cover Release the 4 latches, and take off the Control panel cover control panel cover. Latch Latch Fig. 5-24 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 CONTROL PANEL 5 - 17...
  • Page 124 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved CONTROL PANEL 5 - 18...

  • Page 125: Scanning Section

    Drive pulley Carriage-1 Original glass Rail for carriage-1 Reflector Shading correction plate CCD board Lens SLG board Carriage-2 CCD sensor Rail for carriage-2 Fig. 6-1 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 1...

  • Page 126: Construction

    The size of the original placed on the glass is instantly detected using the automatic original detection sensors (S1-5) fixed on the base frame without moving the carriage-1. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 2...

  • Page 127: Operation

    Scanning an original on the RADF Carriage-1 stays at the shading position during the shading correction, and at the scanning position during the scanning operation. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 3...

  • Page 128: Two-Phase Motor Drive Circuit (Fixed-Current Type)

    Reset for the whole system. Internal circuit of the driver is initialized by setting the motor to "L" level (pulse interval: 10µsec. or more). e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 4...

  • Page 129: Control For Exposure Lamp

    Exposure lamp (Xenon lamp) Lighting device for xenon lamp (Lamp inverter board) CCD board CCD sensor SLG board Analog Front End Scanner ASIC (AFE) Fig. 6-5 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 5...

  • Page 130: Exposure Lamp

    (3) Xenon atom (4) Ultraviolet lay (5) Fluorescer (6) Visible light (irradiated from the opening to outside the pipe) (7) Openig (8) Harness Fig. 6-7 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 6...

  • Page 131: Control Circuit For Exposure Lamp

    Q102 Fig. 6-8 LMPON-0 State of WDTOUT-0 5VSWON-0 +5VSW Q102 Xenon lamp (Lamp drive signal) equipment Normal operation Scanner CPU overdriving Call for Service © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 7...

  • Page 132: Ccd Control

    (S -K) I = k (W- K) Coefficient Image data before correction Black data (stored in "Black" memory) White data (stored in "White" memory) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 8...

  • Page 133: Automatic Original Size Detection Circuit

    APS-R APS-C IC10 APS-C IC10 Reflection type Reflection type APS-3 photosensor photosensor Scanner Scanner APS-3 APS-2 APS-1 APS-2 SLG board SLG board Fig. 6-11 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 9...
  • Page 134 Sensor detection points [A4 Series] APS-R APS-C A5-R B5-R A4-R APS-3 APS-1 APS-2 Fig. 6-12 [LT Series] APS-C APS-R ST-R APS-3 LT-R APS-2 Fig. 6-13 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 10...
  • Page 135 Retains the latest original size (or no original state) recognized right before the platen sensor is turned ON regardless of the state of the APS sensor output signals. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION...
  • Page 136 The pulse modulation is performed inside the reflection type phototransistor. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 12...

  • Page 137: Disassembly And Replacement

    Remove 3 screws to take off the original glass holder. Original glass holder Fig. 6-15 Remove 2 caps and 2 screws to take off the original glass. Original glass Fig. 6-16 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 13...
  • Page 138 Take off the lens cover P.6-14 "[B] Lens cover"). Remove 2 screws to take off the remaining APS sensor with its bracket. Fig. 6-19 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 14...
  • Page 139 P.6-14 "[B] Lens cover"). LT series Take off 3 APS sensors by disconnecting 1 connector and removing 1 screw for each sensor. Fig. 6-22 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 15...
  • Page 140 Move the carriage-1 to the left side. Carriage-1 Fig. 6-24 Disconnect the connector, release the clamp and remove 1 screw of the exposure lamp. Fig. 6-25 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 16...
  • Page 141 Take off the lens cover P.6-14 "[B] Lens cover"). Disconnect 8 connectors and remove 4 screws to take off the SLG board. SLG board Fig. 6-28 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 17...
  • Page 142 10 screws denoted with arrows in the figure. Fig. 6-30 2. Handle the unit with extra care. Do not touch the adjusted area or lens. Fig. 6-31 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 18...
  • Page 143 Disconnect 1 connector of the SLG board. Then remove 4 seals and release the lamp Seal Clamp harness from 1 clamp. Seal Fig. 6-34 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 19...
  • Page 144 Rotate the carriage-1 in the direction shown in the figure at right, paying attention not to touch the mirror. Then take out the carriage- Carriage-1 Fig. 6-37 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 20...
  • Page 145 Wire holder jig Fig. 6-39 Remove the tension spring. Tension spring Carriage wire Tension spring Carriage wire Fig. 6-40 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 21...
  • Page 146 Scan motor P.2-45 "[L] Rear cover"). Disconnect the connector of the scan motor. Then remove 2 screws to take off the scan motor. Fig. 6-43 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 22...
  • Page 147 Note: When the sensor has been replaced, be sure to put a new protection sheet. Carriage home position sensor Fig. 6-46 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 SCANNING SECTION 6 - 23...
  • Page 148 Remove 1 clip to take off the actuator. Clip Fig. 6-47 Disconnect 1 connector and release 2 latches. Then take off the platen sensor. Platen sensor Fig. 6-48 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved SCANNING SECTION 6 - 24...

  • Page 149: Laser Optical Unit

    The laser unit with 2 beams is used only for the e-STUDIO755/855, and the 1-beam type for the e- STUDIO555/655. Fig. 7-1 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 LASER OPTICAL UNIT 7 - 1...
  • Page 150 H-sync detection PC board 2nd turnup mirror H-sync turnup mirror 1st turnup mirror Slit glass [ Laser optical unit overview ] Fig. 7-2 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved LASER OPTICAL UNIT 7 - 2...
  • Page 151 Laser control PC board H-sync turnup mirror 1st turnup mirror Slit glass ( Laser beam exit ) [ Laser optical unit overview ] Fig. 7-3 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 LASER OPTICAL UNIT 7 - 3...

  • Page 152: Structure

    "CAUTION. HOT", "CAUTION. HIGH VOLTAGE", "CAUTION. LASER BEAM", etc. to see if there is any dirt on their surface and if they are properly stuck to the equipment. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved LASER OPTICAL UNIT 7 - 4...
  • Page 153 Wartungsarbeiten abziehen“), „CAUTION. HOT“ („VORSICHT, HEISS“), „CAUTION. HIGH VOLTAGE“ („VORSICHT, HOCHSPANNUNG“), „CAUTION. LASER BEAM“ („VORSICHT, LASER“) usw.], um sicherzustellen, dass sie nicht verschmutzt sind und korrekt am Gerät angebracht sind. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 LASER OPTICAL UNIT 7 - 5...

  • Page 154: Polygonal Motor Unit

    Polygonal mirror The e-STUDIO555/655 has a 1-beam type of laser unit. One laser beam emitted from the laser diode is reflected by this mirror. As the polygonal mirror is rotated by the polygonal motor (M2), the reflected laser beam moves in sync with the rotation. The direction of the movement is the primary scanning direction of the image.
  • Page 155 The polygonal mirror cover reduces wind damage and noise, prevents adhesion of foreign matter on the mirror surface and releases heat by sealing the polygonal mirror. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 LASER OPTICAL UNIT...

  • Page 156: Fθ Lenses 1 And 2

    Slit glass Slit glass is located where the laser beams are output from the laser optical unit, and it protects the unit from dust. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved LASER OPTICAL UNIT 7 - 8...

  • Page 157: Laser Diode Control Circuit

    Power source Laser power Semiconductive laser Laser driver comparison circuit circuit Constant optical output Monitor efficiency Monitor output regulation circuit Fig. 7-10 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 LASER OPTICAL UNIT 7 - 9...

  • Page 158: Polygonal Motor Control Circuit

    Polygonal motor ON signal PMCLK-1 Polygonal motor reference clock PMOK-0 Polygonal motor PLL control signal Rotating at a constant Stopping or error speed e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved LASER OPTICAL UNIT 7 - 10...

  • Page 159: Laser Unit Cooling Fan Control Circuit

    Relation between each signal level and the rotation of the fan (L = Low level, H = High level) LDFOF-1 LDFAN-0 Rotation of Fan High speed Low speed Stopping © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 LASER OPTICAL UNIT 7 - 11...

  • Page 160: Disassembly And Replacement

    Fig. 7-14 Disconnect 1 connector and remove 2 screws to take off the laser unit cooling fan. Laser unit cooling fan Fig. 7-15 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved LASER OPTICAL UNIT 7 - 12...
  • Page 161 P.6-13 "[A] Original glass") Loosen 2 laser unit setscrews. Fig. 7-17 Disconnect 2 connectors and pull out the laser unit. Laser optical unit Fig. 7-18 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 LASER OPTICAL UNIT 7 - 13...
  • Page 162 4. Do not disassemble the laser optical unit in the field because it is precisely adjusted and very sensitive to dust and Slit glass stain. Fig. 7-21 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved LASER OPTICAL UNIT 7 - 14...

  • Page 163: Paper Feeding System

    Drawer feed sensor Registration roller (metal) Drawer transport sensor Registration roller (rubber) Intermediate transport sensor Intermediate transport roller Registration sensor Transport roller — © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 1...
  • Page 164 3rd drawer pickup roller / Tandem LCF pickup End fence home position sensor roller 3rd drawer transport sensor Tandem LCF 3rd drawer feed sensor — e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 2...

  • Page 165: Functions

    This sensor detects the tray bottom position of the drawer. 13.Tandem LCF tray bottom sensor (S71) It detects the lower limit position (home position) on the LCF tray. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM...
  • Page 166 The end fence stop position sensor (S75) detects the stopping position of the end fence so that the sheet is not pushed too much. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 4...

  • Page 167: Operation

    When the drawer is inserted, the protrusion at the rear side of the drawer pushes the lever to the direction of A. Then the pickup roller and roller holder are lowered by the spring force. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855...

  • Page 168: Paper Separation

    B is braked by the separation roller and is not transported any further. Feed roller Separation roller Fig. 8-6 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 6...

  • Page 169: Driving

    ( M41 ) ( * Except for JPC model ) Tandem LCF end fence motor Gear, Timing belt End fence ( M42 ) ( * Except for JPC model ) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 7...

  • Page 170: General Operation

    • The registration motor (M16) is turned ON and paper is transported to the transfer unit. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 8...

  • Page 171: Description Of Tandem Lcf Operation

    If either of the tandem LCF feed sensors (S46) is ON (paper remains on the transport path) when the power is turned ON, that means a paper jam has occurred and the operation is disabled until the paper is removed. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM...
  • Page 172 When a paper jam occurs in the tandem LCF during continuous copying, the sheet that was fed before the jam is copied normally. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 10...
  • Page 173 LCF is not operational and the corresponding message is displayed on the control panel. The states (1) to (4) are cleared by turning the power OFF and solving the problems. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM...

  • Page 174: Tray-Up Motor Control Circuit

    Motor driver output Motor Status PUTRM-0 PUTRM-1 PUTRM-0A PUTRM-1A PLTRM-0 PLTRM-1 PLTRM-0A PLTRM-1A OFF (high impedance) Forward rotation (CW) Reverse rotation (CCW) Brake e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 12...

  • Page 175: Feed Motor Control Circuit

    (PFMCK-1) output from the ASIC. LGC board +36VD IC62 Buffer IC57 PFMON-0 PFC CPU Feed motor IC39 Buffer +5VB IC56 PFMCK-1 ASIC Fig. 8-8 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 13...

  • Page 176: Transport Motor Control Circuit

    Fig. 8-9 Transport motor drive signal Signal Motor status MTMCK-0 MTMEN-0 MTMRF-0 Pulse signal Rotation when accelerating/ decelerating Rotation at a constant speed Stop e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 14...

  • Page 177: Registration Motor Control Circuit

    Registration motor drive signal Signal RGTA-0 Motor status RGTB-0 RGTVR-0 RGTC-0 RGTD-0 Pulse signal Rotation when accelerating/ decelerating Rotation at a constant speed © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 15...

  • Page 178: Tandem Lcf Tray-Up Motor / End Fence Motor

    Motor driver output Motor status TLTRM-0 TLTRM-1 TLTRM-0A TLTRM-1A TLTMM-0 TLTMM-1 TLTMM-0A TLTMM-1A OFF (high impedance) Reverse rotation (CCW) Forward rotation (CW) Brake e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 16...

  • Page 179: Disassembly And Replacement

    If the drawer is not pulled out completely, when the paper feeder unit is taken off, the sensor may get damaged. Right lower cover Fig. 8-14 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 17...
  • Page 180 Remove 1 clip to take off the pickup roller. Pickup roller Fig. 8-16 Remove 2 screws to take off the guide. Guide Fig. 8-17 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 18...
  • Page 181 Tray-up sensor (S32/S38/S44/S50) Disconnect 1 connector. Pull the lever and take off the tray-up sensor Tray-up sensor while the pickup roller is lowered. Fig. 8-20 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 19...
  • Page 182 E-ring latch does not overlap the flat part of the shaft. Harness: Purple Feed clutch Fig. 8-23 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 20...
  • Page 183 Note: Equipment with the LCF does not have the 3rd and 4th drawer bottom sensors. Drawer bottom sensor Fig. 8-26 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 21...
  • Page 184 Remove 1 screw on the varistor. Removing 4 screws and 4 bushings to take Paper guide off the paper guide. Varistor Fig. 8-29 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 22...
  • Page 185 Then remove the pulley and bearing to take off the transport roller with its shaft. Pulley Bearing Fig. 8-32 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 23...
  • Page 186 Bypass feed roller / Pickup roller Remove 1 clip and 1 bushing and displace the bypass transport roller. Bypass transport roller Bushing Clip Fig. 8-35 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 24...
  • Page 187 When assembling, be sure that the stopper of the clutch is securely inserted into the groove of the bracket. Bypass feed clutch Harness band Fig. 8-38 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 25...
  • Page 188 Screw Stay Screw Screw Connector Fig. 8-39 Disconnect the connector and take off the bypass feed sensor. Bypass feed sensor Stay Fig. 8-40 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 26...
  • Page 189 Spring Fig. 8-42 [C-4] Separation roller Remove 4 screws to take off the paper guide. Screw Paper guide Screw Screw Fig. 8-43 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 27...
  • Page 190 Remove 3 screws and release 4 latches to take off the bypass tray upper cover. Bypass tray upper cover Hook Latch Latch Screw Fig. 8-46 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 28...
  • Page 191 Separation roller direction. Install the feed roller for the one-way clutch to come to the rear side. Fig. 8-49 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 29...
  • Page 192 The spring which pushes open the cover is Coupling inside the tray driving unit, so be careful when you remove the cover. Spring Spring Fig. 8-52 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 30...
  • Page 193 Release the harness from the clamp and remove 6 screws to take off the feed driving Screw Feed drive unit unit. Screw Screw Fig. 8-55 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 31...
  • Page 194 Remove 1 screw and take off the plate spring. Paper guide Plate spring Fig. 8-57 Remove 1 clip and 2 springs. Clip Spring Fig. 8-58 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 32...
  • Page 195 Remove 1 screw and take off the sensor with the bracket. Registration sensor Disconnect 1 connector, release the latch and take off the sensor. Fig. 8-61 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 33...
  • Page 196 Remove 3 screws and take off the motor with the bracket. Remove 2 screws and take off the motor. Screw Screw Fig. 8-64 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 34...
  • Page 197 Remove 1 screw and take off the bracket. Standby side Disconnect 1 connector, release the latch mis-stacking sensor and take off the Standby side mis-stacking sensor. Fig. 8-66 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 35...
  • Page 198 (Be sure not to wire it on the side of the motor.) Filament tape Motor Motor Fig. 8-68 Release 2 gear latches and remove the gear. Gear Latch Fig. 8-69 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 36...
  • Page 199 Tandem LCF end fence solenoid Fig. 8-71 [J-4] Tandem LCF bottom sensor (S71) Remove 2 screws and take off the plates. Fig. 8-72 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 37...
  • Page 200 End fence home position sensor (S73) / Standby side empty sensor (S74) / End fence stop position sensor (S75) Remove 1 screw and take off the plate cover. End fence Plate cover Fig. 8-75 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 38...
  • Page 201 (PS)”) Disconnect 1 connector, remove 3 screws and take off the Tandem LCF tray-up motor. Tandem LCF tray-up motor Screw Fig. 8-77 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PAPER FEEDING SYSTEM 8 - 39...
  • Page 202 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PAPER FEEDING SYSTEM 8 - 40...

  • Page 203: Process Related Section

    The drum/cleaner unit is described in chapter 10, the developer unit is described in chapter 11 and the transfer/transport unit is described in chapter 12. Charger wire cleaner Main charger Discharge LED Drum surface potential sensor Drum Fig. 9-1 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PROCESS RELATED SECTION 9 - 1...

  • Page 204: Functions

    Thus the main charger grid, transfer belt, developer bias, laser output and auto-toner output are controlled to be at their optimum states. The temperature/humidity sensor (S7) is installed in the control panel. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PROCESS RELATED SECTION 9 - 2...

  • Page 205: Charger Wire Cleaner Control Circuit

    Signal Low level High level MCLSW-0A Cleaner detected Cleaner not detected (During cleaning) (Cleaner reached to its home position or its stop position) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PROCESS RELATED SECTION 9 - 3...

  • Page 206: High-Voltage Transformer Control Circuit

    HVMVR-1A IC18 Digital data HVDVR-1A Transfer belt Transfer belt cleaning bias cleaning brush HVTVR-1A converter Analog data (Reference voltage: Vctr) Fig. 9-3 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PROCESS RELATED SECTION 9 - 4...

  • Page 207: Description Of Operation

    Leak detection signal (HVTER-0): This signal detects the abnormality (leakage) of the high-voltage transformer output. When the abnormality is detected, the signal moves to a low level. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PROCESS RELATED SECTION...

  • Page 208: Drum Surface Potential Sensor Control Circuit

    High-voltage Reference voltage: Vctr Digital data transformer ASIC converter Main charger grid IC27 Adjustment value NVRAM IC58 Main CPU Drum DRV0-1A Fig. 9-4 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PROCESS RELATED SECTION 9 - 6...

  • Page 209: Description Of Operation

    * The drum surface potential measurement and whether or not the result reflects to the image quality control can be set in the Setting Mode (08). © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PROCESS RELATED SECTION...

  • Page 210: Temperature/Humidity Detection Circuit

    Function Low level High level THSCH-1 Temperature/humidity switch signal Temperature Humidity detection detection TEMPS-1A Temperature detection signal (analog) HUMIS-1A Humidity detection signal (analog) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PROCESS RELATED SECTION 9 - 8...

  • Page 211: Disassembly And Replacement

    Main charger grid Button Fig. 9-7 Take off 1 finger and then the front terminal cover. Terminal cover Latch Fig. 9-8 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PROCESS RELATED SECTION 9 - 9...
  • Page 212 Charger wire Terminal Spring Fig. 9-10 Remove 1 screw and take off the cleaning pad. Screw Cleaning pad Fig. 9-11 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PROCESS RELATED SECTION 9 - 10...
  • Page 213 Pay attention to the size (length) of the screws. If incorrect ones are used, the motor could be damaged. Wire cleaner drive motor Fig. 9-14 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PROCESS RELATED SECTION 9 - 11...
  • Page 214 LED from the guide. Note: Assemble the discharge LED so that all Discharge LED fingers of the guide are hooked. Lock pin Discharge LED Fig. 9-17 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PROCESS RELATED SECTION 9 - 12...
  • Page 215 The drum surface potential sensor consists of the detection section and the board section as a set. Locking support Locking support Fig. 9-20 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PROCESS RELATED SECTION 9 - 13...
  • Page 216 Remove 2 screws and take off the exit section cooling fan from the bracket. Exit section cooling fan Fig. 9-23 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PROCESS RELATED SECTION 9 - 14...
  • Page 217 Remove 1 screw on the left face of the rear cover and pull out the ozone filter. Ozone filter Remove the ozone filter from the case. Fig. 9-24 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PROCESS RELATED SECTION 9 - 15...
  • Page 218 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PROCESS RELATED SECTION 9 - 16...

  • Page 219: Drum/Cleaner Unit

    Drum cleaning blade Drum thermistor Drum Drum cleaning brush Recovered toner transport auger Drum recovery blade Image quality sensor Drum separation finger Fig. 10-1 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DRUM/CLEANER UNIT 10 - 1...

  • Page 220: Functions

    It works only when the leading edge of the paper is passing the drum. The drum separation finger is pressed against the drum by this solenoid and the finger separates the paper forcibly from the drum. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DRUM/CLEANER UNIT 10 - 2...

  • Page 221: Drum Temperature Detection Circuit

    Therefore, when the temperature becomes higher, the input voltage to the main CPU becomes lower. LGC board +5VB IC58 DRTH-0A Main CPU Drum thermistor Fig. 10-2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DRUM/CLEANER UNIT 10 - 3...

  • Page 222: Image Quality Control

    D/A converter Reflected light Image quality sensor CTDVD-1A amount signal IC12, 98 ( CTDS-1 signal ) CTDVC-1A A/D converter Operational amplifier circuit Fig. 10-3 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DRUM/CLEANER UNIT 10 - 4...

  • Page 223: Principle Of Image Quality Sensor

    (Is the toner amount of the test pattern within the permissible amount?) [6] Changing of the image formation condition [7] Finish controlling (Reflecting the determined image formation condition to the following printing) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DRUM/CLEANER UNIT 10 - 5...

  • Page 224: Drum Motor Control Circuit

    Pulse signal Forward rotation when accelerating/ decelerating Reverse rotation when accelerating/ decelerating Forward rotation at a constant speed Reverse rotation at a constant speed Stop e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DRUM/CLEANER UNIT 10 - 6...

  • Page 225: Disassembly And Replacement

    Turn the cam to release the pressure of the cleaning blade. Remove 3 screws to take off the drum shaft. Drum shaft Fig. 10-8 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DRUM/CLEANER UNIT 10 - 7...
  • Page 226 • No foreign matter must be attached on the cleaner stay. Cleaner stay Gap plate No gap Fig. 10-11 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DRUM/CLEANER UNIT 10 - 8...
  • Page 227 Do not touch the edge of the cleaning blade. Fig. 10-13 [D] Recovery blade Take off the cleaning blade. P.10-9 "[C] Cleaning blade") Separate the recovery blade gently. Recovery blade Fig. 10-14 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DRUM/CLEANER UNIT 10 - 9...
  • Page 228 Take off the cleaner unit. P.10-7 "[A] Cleaner unit") Disconnect 1 connector and remove 2 screws to take off the image quality sensor. Image quality sensor Fig. 10-17 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DRUM/CLEANER UNIT 10 - 10...
  • Page 229 Remove 2 screws to take off the plate on the rear side. Screw Plate Fig. 10-19 Remove the E-ring to take off the cam. E-ring Fig. 10-20 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DRUM/CLEANER UNIT 10 - 11...
  • Page 230 Weight screw the correct position because the shape of the separation finger in the middle and on the outer side is different. Fig. 10-23 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DRUM/CLEANER UNIT 10 - 12...
  • Page 231 Cleaning brush drive motor (M13) / Drum separation finger solenoid (SOL1) Take off the exhaust duct. P.9-14 "[F] Exhaust duct") Remove 1 screw and take off the stay. Stay Fig. 10-26 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DRUM/CLEANER UNIT 10 - 13...
  • Page 232 Note: Pay attention to the size (length) of the screws. If incorrect ones are used, the motor could be damaged. Screw Screw Fig. 10-28 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DRUM/CLEANER UNIT 10 - 14...

  • Page 233: Developer Unit

    Developer unit drive section Upper developer sleeve Transport sleeve Lower developer sleeve Drum Doctor blade Mixer unit Paddle Auto-toner sensor Scattered toner recovery roller Fig. 11-1 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 1...

  • Page 234: Functions

    Note: Calculation of the pixel counter is not used for the above detection of the amount of toner remaining. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 2...
  • Page 235 Sub-hopper The sub-hopper consists of the paddle to mix the toner transported from the cartridge, and the auger to transport the toner to the developer unit. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 3...
  • Page 236 • Pipe The auger is equipped in the pipe to transport the toner. This auger is driven by the recycle toner transport motor (M8). e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 4...
  • Page 237 Developer unit The developer unit of the e-STUDIO755/855 has a different structure (driving gear) from that of e-STUDIO555/655 due to its copy speed. The developer unit of the e-STUDIO555/655 has a protrusion on its rear side to prevent a wrong installation.

  • Page 238: Developer Unit Drive

    11.3 Developer Unit Drive Developer unit drive Fig. 11-4 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 6...

  • Page 239: Motor Control Circuit

    Driving signal of new toner supply motor (L: Low level, H: High level) Signal Motor Status TNMTON-0 TNMTCW-0 Reverse rotation (detecting cartridge installation) Forward rotation (when supplying toner) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 7...

  • Page 240: Developer Unit Motor Control Circuit

    8. When the DVMBK signal from the ASIC moves to a low level, the developer unit motor is braked. When the DEVON signal moves to a high level, the motor is stopped. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 8...

  • Page 241: Auto-Toner Circuit

    Detects the toner density in the developer material, and supplies toner when the density is lowered to a certain level. Detects that there is no toner left in the developer unit. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT...
  • Page 242 New toner motor toner motor IC11 Buffer Toner density signal IC56 Auto-toner sensor ASIC IC18 Control voltage signal Developer material converter Fig. 11-7 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 10...

  • Page 243: Operation Of Auto-Toner Sensor

    Auto-toner sensor output To the main-CPU Drive Detection conversion Magnetic resistance Magnetic resistance ( LGC board ) winding winding circuit ATS-1A Magnetic circuit Fig. 11-8 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 11...

  • Page 244: Disassembly And Replacement

    Pull out the toner cartridge drive unit up to approx. 30º, and then take it off in the Toner cartridge drive unit direction of the arrow. Fig. 11-10 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 12...
  • Page 245 Disconnect 1 connector from the toner cartridge empty sensor. Note: Be careful not to damage the sensor when connecting and disconnecting the connector. Toner cartridge empty sensor Fig. 11-13 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 13...
  • Page 246 Remove 2 screws to take off the inner cover. Remove 1 screw. Cover Remove 3 screws to take off the toner drive section. Drive unit Fig. 11-16 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 14...
  • Page 247 Remove 2 screws to take off the left inner cover. Disconnect 1 connector, remove 2 screws, and then take off the toner recycle unit. Connector Fig. 11-19 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 15...
  • Page 248 Rotate the L-shaped shaft upward to release the lock. Disconnect 1 connector and pull out the developer unit to the front side. L-shaped shaft Fig. 11-22 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 16...
  • Page 249 Put in the new developer material. Rotate the gear on the rear side several times so that the developer material is mixed evenly. Gear Fig. 11-25 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 17...
  • Page 250 (The doctor sleeve gap does not need to be adjusted.) Fig. 11-28 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 18...
  • Page 251 Fig. 11-30 Remove 1 E-ring and then the spring. Spring E-ring Remove 2 E-rings and take off 2 guide rollers. Guide roller E-ring Fig. 11-31 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 19...
  • Page 252 Take off the guide roller. P.11-19 "[G] Guide roller") Screw Front side plate Remove 3 screws to take off the front side plate. Screw Fig. 11-34 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 20...
  • Page 253 Fig. 11-36 Remove 2 pole position fixing bushings, and then 2 E-rings. Remove 4 E-rings and then 2 gears. Pole position fixing bushing Fig. 11-37 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 21...
  • Page 254 Fig. 11-39 Transport sleeve Remove 1 screw and then the pole position fixing bushing on the rear side. Screw Pole position fixing bushing Fig. 11-40 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 22...
  • Page 255 Replace the oil seal pressed into the mixer nozzle, if necessary. * Procedure for replacing an oil seal: P.11-25 "Fig. 11-47 ") Mixer Mixer nozzle Fig. 11-43 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 23...
  • Page 256 Front side of the transport sleeve (1) • Rear and front side of the mixer (2 for each) • Rear and front side of the paddle (1 for each) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 24...
  • Page 257 Take off the cleaner unit. P.10-7 "[A] Cleaner unit") Disconnect 1 connector, remove 1 screw and then take off the sensor bracket. Screw Sensor bracket Fig. 11-49 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 25...
  • Page 258 Disconnect 1 connector of the fan. Toner filter Filter duct Fig. 11-51 Remove 3 screws to take off the fan. Developer unit fan Fig. 11-52 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 26...
  • Page 259 Pay attention to the size (length) of the screws. If incorrect ones are used, the motor could be damaged. Used toner transport motor Fig. 11-54 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 DEVELOPER UNIT 11 - 27...
  • Page 260 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved DEVELOPER UNIT 11 - 28...

  • Page 261: Transfer/Transport Unit

    Transport guide Transfer belt Horizontal transport roller-1 Transfer belt drive roller Horizontal transport roller-2 Cleaning brush Horizontal transport roller-3 Recovery auger Horizontal transport roller-4 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 TRANSFER/TRANSPORT UNIT 12 - 1...

  • Page 262: Functions

    The transport guide leads the electrostatically attracted paper to the fuser unit. The guide is made of a material which prevents a frictional charge caused by the paper. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved TRANSFER/TRANSPORT UNIT 12 - 2...

  • Page 263: General Description Of Transfer Belt Unit Operation

    5. The transfer belt unit is lowered, stops rotating, and waits at the released position from the photoconductive drum after the completion of printing. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 TRANSFER/TRANSPORT UNIT...

  • Page 264: Transfer Belt Motor Control Circuit

    Fig. 12-2 Transfer belt motor drive signal Signal Motor status TRMCK-0 TRMEN-1 TRMVR-0 Pulse signal Rotation when accelerating/ decelerating Rotation at a constant speed Stop e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved TRANSFER/TRANSPORT UNIT 12 - 4...

  • Page 265: Disassembly And Replacement

    Remove 4 screws. Slide the transfer unit to the rear side and Connector raise the front side to take it off. Screw Screw Fig. 12-5 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 TRANSFER/TRANSPORT UNIT 12 - 5...
  • Page 266 Take off the transfer unit. P.12-5 "[A] Transfer unit") Transfer belt unit Turn the transfer belt unit 90º and pull it out upward. Transfer unit Fig. 12-8 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved TRANSFER/TRANSPORT UNIT 12 - 6...
  • Page 267 Remove 1 screw and then the plate spring. Slide the transport guide to the rear side to Fig. 12-11 pull it out upward. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 TRANSFER/TRANSPORT UNIT 12 - 7...
  • Page 268 2. Be careful not to touch, scratch or damage the blade. 3. After installing the blade, be sure that the seals on both sides are not damaged. Cleaning blade Fig. 12-14 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved TRANSFER/TRANSPORT UNIT 12 - 8...
  • Page 269 Fig. 12-16 Hold A (shaft) or B (stay) with your left hand. Hold the slide rail on the right with your right hand. Fig. 12-17 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 TRANSFER/TRANSPORT UNIT 12 - 9...
  • Page 270 (14) Fix the transfer/transport unit with 2 stepped screws. (15) Assemble it in the reverse order of the disassembling procedure. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved TRANSFER/TRANSPORT UNIT 12 - 10...
  • Page 271 P.12-9 "[E] Transfer/Transport unit") Bracket Disconnect 1 connector. Remove 1 E-ring and 3 screws to take off the bracket. Screw Screw E-ring Fig. 12-22 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 TRANSFER/TRANSPORT UNIT 12 - 11...
  • Page 272 Remove 2 screws to take off the transfer belt motor. Note: When installing the motor, fix it by rotating it counterclockwise. Screw Spring Fig. 12-25 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved TRANSFER/TRANSPORT UNIT 12 - 12...
  • Page 273 Pay attention to the size (length) of the screws. If incorrect ones are used, the motor could be damaged. Transfer belt cam motor Fig. 12-28 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 TRANSFER/TRANSPORT UNIT 12 - 13...
  • Page 274 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved TRANSFER/TRANSPORT UNIT 12 - 14...

  • Page 275: Fuser Unit

    The thermistors (THM1, 2 and 3) detect the fuser roller temperature to control it, and when the temperature becomes abnormally high, which is detected by thermostats (THMO1 and 2), the power supply to the IH coil (IH-COIL) is cut off. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT...

  • Page 276: Functions

    ON/OFF of the center and side IH coil to keep the fuser roller at a certain temperature. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 2...

  • Page 277: Fuser Control Circuit

    Control circuit including CPU IH coil energization permitting signal Duty ratio changing signal +5VSW +5VB Temperature AC line control circuit DC line Fig. 13-2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 3...

  • Page 278: Heating Principle Of Ih Coil

    IGBT driver ( IGBT ) IGBT driver Input current Monitoring input current Input voltage Monitoring input voltage I/F circuit for LGC board Fig. 13-4 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 4...

  • Page 279: Ih Control Circuit Interface

    When an abnormality is detected in the IH control circuit, it stops the power supply to the IH coil and displays a message "call for service". LGC board IH board +5VSW H1ERR1-0 IC56 ASIC H1ERR2-0 H1ERR3-0 Fig. 13-5 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 5...
  • Page 280 (upper) is (Other than the above) when the front cover opened (upper) is opened An abnormal status is detected when the cover is opened e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 6...

  • Page 281: Temperature Detection Section

    2. Control of the surface temperature of the fuser roller During During Warming-up Ready During printing Ready printing waiting Temperature of fuser roller (Example: e-STUDIO855) IH coil ON OFF ON OFF Fig. 13-6 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 7...
  • Page 282 ( IH coil OFF ) Shut Off Mode Fixed time ( 08-206 ) Temperature of fuser roller ( Example: e-STUDIO855 ) IH coil ON Fig. 13-7 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 8...
  • Page 283 OFF again. After confirming that it is the fuser unit abnormality, correct the abnormality and reset the counter value (08-400) to "0" to start up the equipment normally. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT...
  • Page 284 Fuser roller rear thermistor IC58 STH--1A Main CPU +5VB THMCH-1 Fuser roller front thermistor ETH--1A IC24 Analog +5VB multiplexer Pressure roller thermistor PTH--1A Fig. 13-8 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 10...
  • Page 285 100°C or below When pre- 240°C or C449 On usual running end above temperature / 250°C or ready above temperature 270°C or is detected above © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 11...
  • Page 286 * The figures in the "Error code" and "Counter" fields with parentheses denote that an error status has not yet been determined (= error status is detected only once). e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 12...

  • Page 287: Fuser Motor Control Circuit

    9. When the pressure roller temperature is lowered to less than the reference value during the ready status, the HTRML signal output from the ASIC moves to a low level. Thus the motor is rotated at a low speed. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT...
  • Page 288 This signal rotates the fuser motor at a low speed. When this signal moves to a low level, the motor is rotated at a low speed, and when this moves to a high level, the motor is rotated at a high speed. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 14...

  • Page 289: Disassembly And Replacement

    ( 5 ) Harness clamp Harness Harness ( 7 ) Shaft ( 6 ) Web motor Harness clamp Connector Connector Fuser unit front cover Fig. 13-10 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 15...
  • Page 290 Especially do not touch the ( Without tag ) IGBT IGBT when the power is ON since it is generating high-voltage. Fig. 13-13 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 16...
  • Page 291 IH cover-2 Screw Disconnect 4 connectors. Screw Remove 2 screws and open the IH cover-2 to the front side. Screw Connector Connector Fig. 13-16 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 17...
  • Page 292 Remove 1 E-ring, 1 bushing, 1 E-ring, 2 E-ring Cleaning web gears, 1 pin, and 1 bushing in order from the shaft. E-ring E-ring Fig. 13-19 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 18...
  • Page 293 2. Be sure that the web pushing roller rolls only in the direction of the arrow in the figure. Web pushing roller Mark side Washer Fig. 13-21 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 19...
  • Page 294 Fig. 13-22 2. The remaining portion of the cleaning web can be checked from the small square hole of the fuser unit. Full Fig. 13-23 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 20...
  • Page 295 Take off the cleaning web unit P.13-18 "[C] Cleaning web unit / Cleaning web"). Remove 2 screws to take off the fuser unit front cover. Screw Screw Fig. 13-24 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 21...
  • Page 296 Remove 2 stepped screws. Then take off the upper separation finger unit and a crank bracket by sliding them to the rear side. Crank plate Fig. 13-27 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 22...
  • Page 297 P.13-17 "[B] Fuser unit"). Pressure screw Take off the cleaning web unit P.13-18 "[C] Cleaning web unit / Cleaning web"). Loosen 2 pressure screws completely. Fig. 13-30 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 23...
  • Page 298 2.0~2.5mm 2.0~2.5mm their brackets. 2. Adjust the gap between each thermostat and the fuser roller to be 2.0-2.5 mm. Thermostat Heat roller Fig. 13-33 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 24...
  • Page 299 Remove 2 screws, release 2 harness clamp and take off the bracket with releasing the Screw catching section. Bracket Harness clamp Screw Fig. 13-36 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 25...
  • Page 300 (11) Remove 2 screws and take off the bearing (rear). E-ring Screw Gear, One-way clutch Fig. 13-38 (12) Remove 1 C-ring (front). C-ring ( front ) Fig. 13-39 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 26...
  • Page 301 Release the latch of the sensor to take off the web detection sensor. Screw Fig. 13-42 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 27...
  • Page 302 Note: Pay attention to the size (length) of the screws. If incorrect ones are used, the motor could be damaged. Web motor Fig. 13-45 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 28...
  • Page 303 2. Be sure that the thermistor is contacting Fig. 13-47 with the pressure roller when it has been installed. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 FUSER UNIT 13 - 29...
  • Page 304 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved FUSER UNIT 13 - 30...

  • Page 305: Exit/Reverse Section

    These fans are equipped to cool down the reverse section. 5. Reverse sensor-1 and -2 (S23, S24) These sensors detect the state of paper feeding. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXIT/REVERSE SECTION 14 - 1...

  • Page 306: Driving Of Exit/Reverse Section

    © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXIT/REVERSE SECTION 14 - 2...
  • Page 307 3 sheets × 1 copy Single-sided printing operation (A4/LT) Step 1 Step 6 Step 2 Step 7 Step 3 Step 8 Step 4 Step 5 Fig. 14-2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXIT/REVERSE SECTION 14 - 3...
  • Page 308 5 sheets × 1 copy Duplex printing operation (A4/LT) Step 1 Step 6 Step 2 Step 7 Step 3 Step 8 Step 4 Step 9 Step 5 Step 10 Fig. 14-3 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXIT/REVERSE SECTION 14 - 4...
  • Page 309 3 sheets × 1 copy Single-sided printing operation (A3/LD/B4/LG/A4-R/LT-R) Step 1 Step 6 Step 2 Step 7 Step 3 Step 8 Step 4 Step 9 Step 5 Fig. 14-4 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXIT/REVERSE SECTION 14 - 5...
  • Page 310 4 sheets × 1 copy Duplex printing operation (A3/LD/B4/LG/A4-R/LT-R) Step 1 Step 6 Step 2 Step 7 Step 3 Step 8 Step 4 Step 9 Step 5 Step 10 Fig. 14-5 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXIT/REVERSE SECTION 14 - 6...

  • Page 311: Exit Motor Control Circuit

    Fig. 14-6 Exit motor drive signal Signal EXTMA-0 Motor status EXTMB-0 EXMVR-0 EXTMC-0 EXTMD-0 Pulse signal Rotation when accelerating/decelerating Rotation at a constant speed © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXIT/REVERSE SECTION 14 - 7...

  • Page 312: Reverse Motor Control Circuit

    Pulse signal Forward rotation when accelerating/ decelerating Reverse rotation when accelerating/ decelerating Forward rotation at a constant speed Reverse rotation at a constant speed Stop e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXIT/REVERSE SECTION 14 - 8...

  • Page 313: Disassembly And Replacement

    Disconnect 1 connector, remove 2 screws and then take off the reverse section cooling fan-2. Reverse section cooling fan-2 Fig. 14-10 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXIT/REVERSE SECTION 14 - 9...
  • Page 314 Disconnect 1 connector, remove 1 screw and then take off the reverse sensor-2. Reverse sensor-2 Fig. 14-13 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXIT/REVERSE SECTION 14 - 10...
  • Page 315 However, the position of the solenoid can be adjusted by moving this screw to the position B when the flap valve of the solenoid is not pulled enough. Fig. 14-16 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXIT/REVERSE SECTION 14 - 11...
  • Page 316 Fig. 14-18 Release 4 locking supports to take off the MOT2-RV board. Reverse motor driving PC board Fig. 14-19 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXIT/REVERSE SECTION 14 - 12...
  • Page 317 Remove 2 E-rings and 2 bearings to take off Reverse roller-2 Reverse roller-1 the reverse roller-1. Remove 2 E-rings and 2 bearings to take off the reverse roller-2. Bearing Bearing Fig. 14-22 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXIT/REVERSE SECTION 14 - 13...
  • Page 318 2 O-rings to the grooves of the exit roller. Note: O-ring: Refer to the parts list for the parts number and so on. O-ring Fig. 14-25 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXIT/REVERSE SECTION 14 - 14...

  • Page 319: Reversing Automatic Document Feeder (Radf)

    Reverse paper path Exit roller Exit paper path Original tray sensor (SR1) RADF opening/closing sensor (SR15) Original tray width sensor (SR2) © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 1...

  • Page 320: Functions

    This roller transports the original reversed in the exit path to the exit roller. 11. Exit roller This roller transports the original to the original exit tray. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 2...

  • Page 321: Description Of Operation

    1. Single-sided original 2. Double-sided original Fig. 15-2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 3...

  • Page 322: Drive

    Normal rotation / Normal rotation: Front Exit intermediate roller Reverse rotation side exiting Exit/reverse roller Reverse rotation: Exit roller Backside exiting e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 4...

  • Page 323: Original Size Detection

    Size registration width sensor sensor detection detection detection determined sensor sensor-1 sensor-2 sensor-3 B5/B4 FOLIO A4/A3 A4-R B5-R A5-R © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 5...
  • Page 324 Size registration width sensor sensor detection detection detection determined sensor sensor-1 sensor-2 sensor-3 COMP COMP LT-R/LG LT-R 8.5x8.5 ST-R e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 6...
  • Page 325 Original width Original Size tray width registration detection detection detection tray sensor determined sensor sensor sensor-1 sensor-2 sensor-3 LT-R/LG LG/LT-R 8.5x8.5 ST-R © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 7...

  • Page 326: Electric Circuit Description

    RADF opening/closing sensor ( SR15 ) Jam access cover opening/closing sensor ( SWR1 ) RADF opening/closing switch ( SWR2 ) Fig. 15-4 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 8...

  • Page 327: Electric Circuit Description

    The motor current value can be set discretionary by changing the level of the reference setting signal (FMOT-REF). © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF)
  • Page 328 The motor current value can be set discretionary by changing the level of the reference setting signal (RMOT-REF). e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 10...
  • Page 329 The motor current value can be set discretionary by changing the level of the reference setting signal (SMOT-REF). © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF)
  • Page 330 “L”, Q15 is turned ON, the power of 24V is applied to the coil for recovery operation, the solenoid is turned OFF, and then the pickup roller goes up. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 12...
  • Page 331 (RESET) to “L” to put the CPU in a halt state. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF)

  • Page 332: Disassembly And Replacement

    P.2-45 "[L] Rear cover"). Disconnect the connector. Fig. 15-12 Remove 2 screws. Fig. 15-13 Open the RADF and remove 2 screws. Fig. 15-14 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 14...

  • Page 333: Radf Front Cover

    Open the original jam access cover and remove 2 screws. Fig. 15-16 Open the RADF and remove 4 screws. Fig. 15-17 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 15...

  • Page 334: Radf Rear Cover

    Note: There is a Mylar attached to the hinge to prevent your fingers from being caught. Treat it carefully. Fig. 15-20 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 16...

  • Page 335: Original Jam Access Cover

    Remove 2 screws and the hinge pin. Fig. 15-22 Slide the original jam access cover to take it off. Fig. 15-23 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 17...

  • Page 336: Radf Left Cover

    P.15-24 "15.5.12 Paper feeder unit" Disconnect 1 connector from the RADF board. LED3 Fig. 15-25 Remove 1 screw and take off the bushing. Fig. 15-26 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 18...

  • Page 337: Original Reverse Tray

    2. When installing the platen sheet unit, be sure to perform the platen sheet adjustment. SERVICE HANDBOOK “3.12.9 Platen Sheet“ Fig. 15-29 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 19...

  • Page 338: Radf Exit Tray

    P.15-19 "15.5.8 Platen sheet unit" Remove 5 screws. Fig. 15-30 Remove 1 screw. Fig. 15-31 Take off the RADF exit tray. Fig. 15-32 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 20...

  • Page 339: Reading Start Guide Unit

    Remove 2 screws. Fig. 15-34 Remove 2 screws and take off the reading Reading start guide unit start guide unit. Fig. 15-35 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 21...

  • Page 340: Exit Guide / Exit/Reverse Guide / Reading End Guide

    Connector Clip Fig. 15-37 Remove 1 screw and take off the leaf spring. Fig. 15-38 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 22...
  • Page 341 (11) Remove 1 E-ring, 1 pulley, 1 pin, 1 timing belt, 1 guide bushing and the bracket. Bracket Guide bushing Timing belt Pulley E-ring Fig. 15-42 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 23...

  • Page 342: Paper Feeder Unit

    2 screws and take off the arm unit on the front side. Fig. 15-44 Remove 1 clip and slide the bushing. Fig. 15-45 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 24...

  • Page 343: Pickup Roller

    Fig. 15-47 Note: Make sure you assemble the pickup roller with the one-way clutch in the correct direction. Lock Lock Fig. 15-48 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 25...

  • Page 344: Feed Roller

    Fig. 15-50 Note: Make sure you assemble the pickup roller with the one-way clutch in the correct direction. Lock Lock Fig. 15-51 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 26...

  • Page 345: Separation Roller

    Then take off the separation roller unit. Fig. 15-53 Remove 1 E-ring and 1 bushing and then take off the separation roller. Fig. 15-54 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 27...

  • Page 346: Original Registration Roller

    Remove 1 clip, 1 pulley and 1 bushing. Bushing Pulley Clip Fig. 15-56 Remove 1 clip and 1 bushing. Bushing Clip Fig. 15-57 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 28...

  • Page 347: Intermediate Transport Roller

    Take off the reading start guide unit. P.15-21 "15.5.10 Reading start guide unit" Loosen 1 screw. Fig. 15-59 Remove 1 screw. Fig. 15-60 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 29...

  • Page 348: Reading Start Roller

    Loosen 1 screw. Fig. 15-62 Remove 1 screw. Remove 1 timing belt, 1 pulley and 1 bearing. Bearing Pulley Fig. 15-63 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 30...
  • Page 349 Take off the reading start roller. Note: When installing the reading start roller, refix the loosened screw and tighten the belt tension. Fig. 15-66 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 31...

  • Page 350: Reading End Roller

    Loosen 1 screw. Fig. 15-68 Remove 1 screw, 1 pulley, 1 bearing and 1 timing belt. Timing belt Bearing Pulley Fig. 15-69 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 32...

  • Page 351: Exit Roller

    / Reading end guide" Remove 2 screws and take off the guide. Fig. 15-71 Take off the exit roller. Fig. 15-72 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 33...

  • Page 352: Exit/Reverse Roller

    Bushing Pulley E-ring Fig. 15-74 Take off the exit/reverse roller, remove 1 E- Bushing ring and 1 bushing. E-ring Fig. 15-75 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 34...

  • Page 353: Exit Intermediate Roller

    Fig. 15-77 Remove 1 E-ring and 1 bushing and take off the exit intermediate roller. Bushing Exit intermediate roller E-ring Fig. 15-78 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 35...

  • Page 354: Reverse Roller

    P.15-38 "15.5.25 Original feed motor bracket" Remove 1 clip, 1 pulley, 1 pin and 1 bushing. Pulley Clip Fig. 15-81 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 36...
  • Page 355 Remove 1clip and 1 bushing. Bushing Clip Fig. 15-82 Remove the reverse roller. Fig. 15-83 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 37...

  • Page 356: Original Feed Motor (Mr1)

    15.5.25 Original feed motor bracket Take off the RADF rear cover. P.15-16 "15.5.3 RADF rear cover" Loosen 1 screw. Fig. 15-86 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 38...

  • Page 357: Read Motor (Mr2)

    Fig. 15-88 15.5.26 Read motor (MR2) Take off the RADF rear cover. P.15-16 "15.5.3 RADF rear cover" Loosen 1 screw. Fig. 15-89 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 39...

  • Page 358: Read Motor Bracket

    Note: When installing the read motor bracket, refix the loosened screw and tighten the belt tension. Connector Fig. 15-92 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 40...

  • Page 359: Original Reverse Motor (Mr3)

    P.15-16 "15.5.3 RADF rear cover" Connector Disconnect 1 connector. Remove 3 screws and take off the original exit motor with the bracket. Fig. 15-95 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 41...

  • Page 360: Radf Cooling Fan (Fr1)

    Connector Fig. 15-97 Remove 2 screws and take off the bracket from the RADF cooling fan. Fig. 15-98 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 42...

  • Page 361: Original Pickup Solenoid (Solr1)

    Before taking off the solenoid, read the scale. When reinstalling, align it with the corresponding position on the scale. Fig. 15-101 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 43...

  • Page 362: Original Reverse Solenoid (Solr2)

    Before taking off the solenoid, read the scale. When reinstalling, align it with the corresponding position on the scale. Fig. 15-104 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 44...

  • Page 363: Original Exit Solenoid (Solr3)

    Before taking off the solenoid, read the scale. When reinstalling, align it with the corresponding position on the scale. Fig. 15-107 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 45...

  • Page 364: Original Jam Access Cover Opening/Closing Switch (Swr1)

    15.5.35 RADF opening/closing switch (SWR2) Take off the RADF board bracket. P.15-58 "15.5.54 RADF board bracket" Disconnect 3 connectors. Fig. 15-110 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 46...
  • Page 365 Note: Be sure to install the switch so that the arm comes to the upper side of the switch. Fig. 15-113 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 47...

  • Page 366: Radf Opening/Closing Sensor (Sr15)

    Fig. 15-115 Disconnect 1 connector. Release 2 latches and take off the original empty sensor. Original empty sensor Fig. 15-116 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 48...

  • Page 367: Original Jam Access Cover Opening/Closing Sensor (Sr13)

    Fig. 15-118 15.5.39 Feeder lower guide unit Take off the original tray. P.15-18 "15.5.6 Original tray" Take off the guide. Fig. 15-119 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 49...

  • Page 368: Original Width Detection Sensor-3 (Sr8)

    Original width detection sensor-2 Disconnect 1 connector. Lift the actuator, release 2 latches and take off the original width detection sensor-2. Fig. 15-122 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 50...

  • Page 369: Original Width Detection Sensor-1 (Sr6)

    P.15-22 "15.5.11 Exit guide / Exit/reverse guide / Reading end guide" Remove 2 screws and take off the 2 leaf springs. Fig. 15-125 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 51...

  • Page 370: Original Tray Sensor (Sr1)

    P.15-19 "15.5.7 Original reverse tray" Remove 2 screws and release 8 latches to take off the original side guide unit. Fig. 15-128 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 52...

  • Page 371: Original Tray Width Sensor (Sr2)

    P.15-19 "15.5.7 Original reverse tray" Remove 2 screws and release 8 latches to take off the original side guide unit. Fig. 15-131 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 53...

  • Page 372: Original Exit/Reverse Sensor (Sr11)

    Remove 1 spring and take off the locking bracket. Locking Bracket Locking lever Fig. 15-134 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 54...

  • Page 373: Original Reverse Unit Opening/Closing Sensor (Sr14)

    / Reading end guide" Disconnect 1 connector. Release 2 latches and take off the original reverse unit opening/ closing sensor. Fig. 15-137 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 55...

  • Page 374: Original Reading End Sensor (Sr4)

    Take off the reading start guide unit. P.15-21 "15.5.10 Reading start guide unit" Disconnect 1 connector. Remove 1 screw and take off the sensor bracket. Fig. 15-140 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 56...

  • Page 375: Original Reading Start Sensor (Prism)

    SERVICE HANDBOOK “3.12.8 Original reading start sensor adjustment“ Fig. 15-143 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 57...

  • Page 376: Radf Board (Radf)

    Fig. 15-145 Disconnect 1 connector. Take off the harness clamp. Remove 4 screws and take off the RADF board bracket. Fig. 15-146 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 58...

  • Page 377: Harness Guide

    P.15-16 "15.5.3 RADF rear cover" Remove the harnesses from the harness guide. Remove 3 screws and take off the harness guide. Fig. 15-147 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 59...
  • Page 378 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 15 - 60...

  • Page 379: Power Supply Unit

    +36 V) are output only when the main switch of the equipment is turned ON and the cover interlock switch is turned ON (front cover (lower) and left lower cover are closed). © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 POWER SUPPLY UNIT...

  • Page 380: Operation Of Dc Output Circuit

    If the protection circuit is activated (except the case the fuse is blown out), remove the causes such as short-circuit. Turn ON the power again 1 minute later to clear the overcurrent protection. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved POWER SUPPLY UNIT 16 - 2...
  • Page 381 Only DC voltage and +5VS are output from the power supply unit. The [POWER] button is monitored and the LED of the main power switch is lit. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 POWER SUPPLY UNIT...

  • Page 382: Output Channel

    Output to the LGC board +12VB: CN407 Pin 6 Output to the PLG board +12VB: CN408 Pin 7 Output to the SLG board e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved POWER SUPPLY UNIT 16 - 4...
  • Page 383 For the LGC board, external LCF (via LGC board) +24VD1, +24VD2, +36VD CN403 For the PLG board +5VD, +24VD2, +36VD CN404 For the SLG board, RADF +24VD2, +24VD4, +36VD CN409 For the finisher +24VD3 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 POWER SUPPLY UNIT 16 - 5...

  • Page 384: Fuse

    Developer unit fan Laser unit cooling fan Switching regulator cooling fan-1 Switching regulator cooling fan-2 Drum separation finger solenoid SOL1 Copy key card e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved POWER SUPPLY UNIT 16 - 6...
  • Page 385 Scan motor F8: 8A (Semi time-lag) +5VB LGC board Harnesses and sensors to be connected to F9: 3.15A (Semi time-lag) the LGC board © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 POWER SUPPLY UNIT 16 - 7...

  • Page 386: Configuration Of Power Supply Unit

    16.5 Configuration of Power Supply Unit CN414 CN401 CN413 Fig. 16-1 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved POWER SUPPLY UNIT 16 - 8...

  • Page 387: Ac Wire Harness

    White White Blue Brown Brown Blue Blue White Black Blue Brown Blue Blue Brown Brown White White White Black Black Black Fig. 16-2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 POWER SUPPLY UNIT 16 - 9...
  • Page 388 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved POWER SUPPLY UNIT 16 - 10...

  • Page 389: Pc Boards

    17. PC BOARDS 1. PWA-F-SYS Fig. 17-1 2. PWA-F-SYSIF Fig. 17-2 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PC BOARDS 17 - 1...
  • Page 390 3. PWA-H-LGC Fig. 17-3 4. PWA-F-CCD Fig. 17-4 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PC BOARDS 17 - 2...
  • Page 391 5. PWA-F-SLG Fig. 17-5 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PC BOARDS 17 - 3...
  • Page 392 6. PWA-H-PLG Fig. 17-6 7. PWA-F-LDR Fig. 17-7 8. PWA-F-SNS * Only for e-STUDIO555/655 Fig. 17-8 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PC BOARDS 17 - 4...
  • Page 393 9. PWA-F-SNS * Only for e-STUDIO755/855 Fig. 17-9 10.PWA-F-MOT Fig. 17-10 11. PWA-F-MOT2-MT/RV Fig. 17-11 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PC BOARDS 17 - 5...
  • Page 394 12.PWA-F-DSP Fig. 17-12 13.PWA-F-KEY Fig. 17-13 e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PC BOARDS 17 - 6...
  • Page 395 14.PWA-F-FUS * Optional for NAD/MJD model, standard for other models Fig. 17-14 15.PWA-F-FIL * Only for NAD/SAD/ARD/ASD/AUD/MJD/CND/TWD model Fig. 17-15 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 PC BOARDS 17 - 7...
  • Page 396 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved PC BOARDS 17 - 8...

  • Page 397: External Counters

    At the sleep In use In use In use mode:OFF CTRCN2 Counter connection L=0V, H=DC5V In use In use In use Signal 2 Connecting © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXTERNAL COUNTERS 18 - 1...
  • Page 398 Connection Signal (IC54) H: Not connected Power +24VA 24V line DC24V±10% When cover opened: OFF KCTRON Key Counter On Signal Open Collector L: ON (IC54) e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXTERNAL COUNTERS 18 - 2...
  • Page 399 If the black mode is selected, it outputs “Low” in real time. In other cases, it outputs “High”. This is the signal only for the coin controller. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 EXTERNAL COUNTERS...

  • Page 400: Notices

    It is not allowed to install more than one external counter (Key Counter, Card controller and Coin controller) at the same time. Physically, the card controller and coin controller cannot be installed together since the output signals are in common. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved EXTERNAL COUNTERS 18 - 4...
  • Page 401 The numbers of the counter for C490 and C474 have been exchanged. 13-28 "Note" for the screws to fix the motor has been added. 17-3 Fig. 17-5 (drawing of the SLG PC board) has been changed. © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO555/655/755/855 REVISION RECORD...
  • Page 402 The value "19" has been corrected to "21" in the table. 13-15 A note for assembling the fuser unit has been added. 18-1 The chapter "EXTERNAL COUNTERS" has been added. e-STUDIO555/655/755/855 © 2009 - 2011 TOSHIBA TEC CORPORATION All rights reserved REVISION RECORD...

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