Page 1: Service Manual
SERVICE MANUAL MULTIFUNCTIONAL DIGITAL COLOR SYSTEMS e-STUDIO2500c/3500c/3510c File No. SME06000100 R060121A3200-TTEC Ver00_2006-05...
Page 2 © 2006 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: E-Studio2500C/3500C/3510C
GENERAL PRECAUTIONS REGARDING THE SERVICE FOR e-STUDIO2500c/3500c/3510c 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 hold the posi- tions as shown in the figure.
Page 4 Do not allow a short-circuit or do not use the parts not recommended by Toshiba TEC Corporation. 4) Cautionary Labels During servicing, be sure to check the rating plate and cautionary labels such as “Unplug the power cable during service”, “CAUTION.
Page 5: Table Of Contents
5.5 Disassembly and Replacement ..................5-14 6. SCANNER ........................6-1 6.1 General Description ......................6-1 6.2 Construction......................... 6-2 6.3 Functions ..........................6-3 6.4 Description of Operation ...................... 6-6 6.4.1 Scanning operation ....................6-6 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTENTS...
Page 6 11.3 Functions ........................... 11-3 11.4 Electric Circuit Description....................11-5 11.4.1 High-voltage transformer control circuit..............11-5 11.4.2 Drum Temperature Detection Circuit..............11-7 11.4.3 Drum motor control circuit ..................11-8 11.4.4 Drum switching motor control circuit............... 11-9 e-STUDIO2500c/3500c/3510c CONTENTS May 2006 © TOSHIBA TEC...
Page 7 16.6 Flow Chart ........................16-11 16.7 Disassembly and Replacement ..................16-13 17. POWER SUPPLY UNIT ....................17-1 17.1 Construction........................17-1 17.2 Operation of DC Output Circuits ..................17-2 17.3 Output Channel ......................... 17-3 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTENTS...
Page 8 17.4 Fuse........................... 17-5 17.5 Configuration of Power Supply Unit................... 17-6 17.6 Sequence of Power Supply ....................17-7 17.7 AC Wire Harness ....................... 17-8 18. PC BOARDS ....................... 18-1 e-STUDIO2500c/3500c/3510c CONTENTS May 2006 © TOSHIBA TEC...
Page 9: Specifications/Accessories/Options/Supplies
32 (26) 32 (26) 22 (18) 32 (26) B4, LG, FOLIO, 26 (22) 26 (22) 22 (18) 26 (22) COMPUTER A3, LD 22 (18) 22 (18) 22 (18) 22 (18) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 1...
Page 10 10.5 (10.5) 8.5 (8.5) PUTER A3, LD 8.5 (8.5) 8.5 (8.5) OHP film Bypass feed Paper supply Drawer Size not Paper size (A4/LT only) Size specified specified A4, LT 14.5 (14.5) e-STUDIO2500c/3500c/3510c SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES May 2006 © TOSHIBA TEC 1 - 2...
Page 11 (Special paper recommended by paper Toshiba TEC) First copy time ......e-STUDIO2500c: Approx. 6.5 sec. (Black), approx. 8.6 sec. (Color) e-STUDIO3500c: Approx. 6.5 sec. (Black), approx. 8.6 sec. (Color) e-STUDIO3510c: Approx. 5.2 sec. (Black), approx. 8.6 sec. (Color) Warming-up time ..... Approx. 99 sec. (Stand-alone, temperature: 20 Scanning speed.......
Page 12 Dimensions of the equipment...... See the figure below (W 699 x D 761 x H 759 (mm)) * When the tilt angle of the control panel is 45 degrees. 45° Fig. 1-1 e-STUDIO2500c/3500c/3510c SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES May 2006 © TOSHIBA TEC 1 - 4...
Page 13: Accessories
North America, Brazil MJD: Europe AUD: Australia ASD: Asia, Hong Kong, Latin America TWD: Taiwan SAD: Saudi Arabia ASU: Saudi Arabia, Asia CND: China KRD: Korea ARD: Argentina JPD: Japan May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 5...
Page 14: Options
The finisher (MJ-1030) is necessary for installation of the hole punch unit (MJ-6004N/E/F/S). • The antenna (GN-3010) is necessary to enable the wireless LAN module (GN-1041) and the bluetooth module (GN-2010). e-STUDIO2500c/3500c/3510c SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES May 2006 © TOSHIBA TEC 1 - 6...
Page 15: Supplies
PS-ZTFC35C (for North America, Central and South America) PS-ZTFC35EC (for Europe) PS-ZTFC35DC (for Australia and Asia) PS-ZTFC35CC (for China) Toner bag PS-TBFC35 (expect for Europe and China) PS-TBFC35E (for Europe) PS-TBFC35C (for China) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES 1 - 7...
Page 16: System List
System List Fig. 1-2 e-STUDIO2500c/3500c/3510c SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES May 2006 © TOSHIBA TEC 1 - 8...
Page 17: Outline Of The Machine
OUTLINE OF THE MACHINE Sectional View 1) Front side-1 B11 B12 B13 F3 F6 D5 D6 D10 D11 Fig. 2-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 1...
Page 18 2nd drawer Middle transport roller Transport roller Lower transport roller 2nd drawer pickup roller ADU entrance sensor 2nd drawer feed roller ADU exit sensor 2nd drawer separation roller e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 2...
Page 20 2nd transfer roller Drum (C) Image position aligning sensor (front / rear) Cleaning blade (C) 2nd transfer roller position detection sensor Recovery blade (C) Paper clinging detection sensor e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 4...
Page 21 3) Rear side CLT7 CLT1 CLT2 CLT8 CLT3 CLT4 CLT6 CLT5 Fig. 2-3 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 5...
Page 22 Shutter motor CLT5 2nd drawer transport clutch (High speed) Polygonal motor CLT6 2nd drawer feed clutch Mirror motor-M CLT7 ADU clutch Mirror motor-C CLT8 Bypass feed clutch e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 6...
Page 23: Electric Parts Layout
Electric Parts Layout [A] Scanner unit, control panel LT series models Fig. 2-4 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 7...
Page 24 [B] Toner cartridge, toner bag Y: M2 M: M3 C: M4 K: M5 Y: S8 M: S9 C: S10 K: S11 Fig. 2-5 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 8...
Page 25 [C] Transfer belt unit SOL2 Fig. 2-6 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 9...
Page 26 Y: ERS-Y M: ERS-M C: ERS-C K: ERS-K THM2 Y: S22 Y: EPU-Y M: S23 M: EPU-M C: S24 C: EPU-C K: S25 K: EPU-K THM1 Fig. 2-7 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 10...
Page 27 [E] Laser unit LDR-M LDR-K e-STUDIO3510c LDR-C LDR-Y Fig. 2-8 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 11...
Page 28 [F] Fuser unit THM5 THM4 THMO3 LAMP3 THM3 THMO2 LAMP1 LAMP2 THMP2 THMO1 THMP1 Fig. 2-9 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 12...
Page 30 [H] Paper feeding unit CLT1 CLT2 CLT3 CLT4 CLT6 CLT5 Fig. 2-11 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 14...
Page 31 Automatic duplexing unit, bypass feed unit CLT7 SOL1 CLT8 Fig. 2-12 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 15...
Page 32 PC board, power supply BRK1 Fig. 2-13 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 16...
Page 33 [K] Damp heater THMO4 THMO6 THMO5 Fig. 2-14 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 17...
Page 34: Symbols And Functions Of Various Components
• Driving the transport rollers of the 1st and 2nd drawers CST-TRY-MOT Lifting up the trays in the 1st and 2nd Fig. 2-11 Tray-up motor drawers e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 18...
Page 35 Used toner motor lock detection sen- motor TR1-SNR Detecting contact/release status of the Fig. 2-6 32-105 1st transfer roller status detection sen- 1st transfer roller for each color May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 19...
Page 36 2nd drawer CST2-TRY-SNR Detecting the lifting status of the tray in Fig. 2-11 20-30 2nd drawer tray-up sensor the 2nd drawer e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 20...
Page 37 2nd drawer transport clutch (Low drawer (Low speed) speed) CLT5 CST2-TR-H-CLT Driving the transport roller of the 2nd Fig. 2-11 21-23 2nd drawer transport clutch (High drawer (High speed) speed) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 21...
Page 38 Driving the M laser diode Fig. 2-8 11-3 Laser driving PC board-M (LDR-M board) LDR-C PWA-F-LDR-C Driving the C laser diode Fig. 2-8 11-3 Laser driving PC board-C (LDR-C board) e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 22...
Page 39 Preventing condensation of the mirrors Fig. 2-14 12-22 Scanner damp heater (Left) of the carriage SCN-DH-R Preventing condensation of the lens Fig. 2-14 12-32 Scanner damp heater (Right) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 23...
Page 40 Generating high-voltage and supplying Fig. 2-13 High-voltage transformer it to the following sections • Main charger needle electrode • Main charger grid • Developer bias • Transfer bias e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 24...
Page 41 PS-ACC Generating DC voltage and supplying it Fig. 2-13 Switching regulator to each section of the equipment Preventing overcurrent to the equip- Fig. 2-13 8-106 Breaker ment May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 25...
Page 42: System Block Diagram
System Block Diagram Fig. 2-15 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 26...
Page 43: Disassembly And Replacement Of Covers
Take off the front cover. Front cover Fig. 2-16 [B] Inner tray Open the front cover. Remove 2 screws and take off the inner tray. Inner tray Fig. 2-17 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 27...
Page 44 Remove 1 screw and take off the tray back Tray back cover cover. Fig. 2-18 [D] Front upper cover Remove 2 screws and take off the front upper cover. Front upper cover Fig. 2-19 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 28...
Page 45 Release 2 latches and take off the front right cover. Front right cover Fig. 2-21 [F] Left upper cover Remove 3 screws and take off the left upper cover. Left upper cover Fig. 2-22 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 29...
Page 46 P.12-29 "[M] Ozone filter-1" Left rear cover Take off the left cover. P.2-30 "[G] Left cover" Remove 5 screws and take off the left rear cover. Fig. 2-24 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 30...
Page 47 Remove 2 screws and take off the left lower cover. Left lower cover Fig. 2-25 Right upper cover Remove 4 screws and take off the right upper cover. Right upper cover Fig. 2-26 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 31...
Page 48 Fig. 2-27 [L] Right rear hinge cover Open the ADU. Remove 2 screws and take off the right rear hinge cover. Right rear hinge cover Fig. 2-28 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 32...
Page 49 [N] Right front hinge cover Pull out the upper and lower drawers. Remove 2 screws and take off the right front hinge cover. Right front hinge cover Fig. 2-30 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 33...
Page 50 Fig. 2-31 [P] Right inner cover Open the ADU and 2nd transfer unit. Remove 3 screws and take off the right inner cover. Right inner cover Fig. 2-32 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 34...
Page 51 Remove 2 screws and take off the upper rear cover. Upper rear cover Fig. 2-33 [R] Rear cover-1 Remove 2 screws and take off the rear cover-1. Rear cover-1 Fig. 2-34 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 35...
Page 52 Fig. 2-35 [T] Rear cover-3 Take off the rear cover-2. P.2-36 "[S] Rear cover-2" Rear cover-3 Remove 3 screws and take off the rear cover-3 Fig. 2-36 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 36...
Page 53: Removal And Installation Of Boards
P.2-35 "[R] Rear cover-1" Remove 4 screws. Disconnect 2 connectors and take off the HDD case. HDD case Fig. 2-37 Remove 6 screws and take off the bracket. Fig. 2-38 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 37...
Page 54 Remove 1 screw and loosen 9 screws. Fig. 2-40 Slide the board cover, disconnect the con- nector of the fan, and take off the board cover. Board cover Fig. 2-41 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 38...
Page 55 Metal plate Fig. 2-43 Disconnect 3 connectors and remove 1 har- ness clamp. Remove 4 screws and take off the SYS board. SYS board Fig. 2-44 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 39...
Page 56 P.2-38 "[B] Board cover" Disconnect 20 connectors and take off 1 har- ness clamp. Remove 8 screws and slide the LGC board to take it off. LGC board Fig. 2-46 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 40...
Page 57 Switching regulator Fig. 2-48 [H] High-voltage transformer (HVT) Take off the switching regulator. P.2-41 "[G] Switching regulator" Disconnect 22 connectors. Fig. 2-49 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 41...
Page 58 Remove the harness band. Disconnect 2 connectors and 2 terminals. FIL board Remove 2 screws, release the locking sup- port and take off the FIL board. Fig. 2-52 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 42...
Page 59 USB PC board Fig. 2-54 [K] Board case Take off the board cover. P.2-38 "[B] Board cover" Remove 5 screws and disconnect 5 connec- tors. Fig. 2-55 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 43...
Page 60 Open the board case. Board case Fig. 2-56 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 44...
Page 61: Disassembly And Replacement Of Covers
Take off the connector cover. Connector cover Fig. 2-57 Disconnect the connector. Fig. 2-58 Remove 1 screw and 1 washer on the rear side. Fig. 2-59 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 45...
Page 62 Remove 1 screw on the rear side. Fig. 2-60 Open the RADF. Fig. 2-61 Remove 2 screws on the front side. Fig. 2-62 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 46...
Page 63 Fig. 2-64 2. Change the position of the installing screw for the damper holding bracket. Installing the RADF: A Installing the platen cover: B Fig. 2-65 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 47...
Page 64 Note: Disconnect the connector of the RADF first when the RADF is installed. Fig. 2-67 Remove 3 screws and take off the rear cover-3. Fig. 2-68 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 48...
Page 65 Remove 2 screws and take off 2 fixing brack- ets on the rear side. Fixing bracket Fig. 2-70 Take off the 2nd drawer of the equipment and PFP 1st drawer. Fig. 2-71 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 49...
Page 66 Fig. 2-73 [C] KD-1019 (Large Capacity Feeder (LCF)) Turn OFF the power and unplug the power cable. Remove 2 screws and take off the rear cover-1. Fig. 2-74 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 50...
Page 67 Fig. 2-75 Remove 3 screws and take off the rear cover-3. Fig. 2-76 Remove 1 screw and the ground wire, and then disconnect 1 connector. Fig. 2-77 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 51...
Page 68 Remove 2 screws and take off 2 fixing brack- ets on the rear side. Fixing bracket Fig. 2-78 Take off the 2nd drawer of the equipment. Fig. 2-79 Pull out the LCF drawer. Fig. 2-80 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 52...
Page 69 (10) Lift up the equipment and take off the LCF. Fig. 2-82 [D] MJ-1030 (Finisher) Turn OFF the power and unplug the power cable. Take off the connector cover and disconnect the connector. Fig. 2-83 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 53...
Page 70 Open the finisher front cover and remove 1 screw. Fig. 2-84 Remove 1 screw and take off the cover of the finisher rear side. Fig. 2-85 Remove 1 screw. Fig. 2-86 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 54...
Page 71 Turn OFF the power and unplug the power cable. Take off the connector cover and disconnect the connector. Fig. 2-88 Remove 1 screw and the ground wire. Fig. 2-89 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 55...
Page 72 Fig. 2-91 [F] MJ-6004 (Hole punch unit) Turn OFF the power and unplug the power cable. Take off the connector cover and disconnect connector. Fig. 2-92 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 56...
Page 73 Open the front cover of the hole punch unit and remove 1 screw. Fig. 2-93 Take off the cover of the punch unit lower side. Cover Fig. 2-94 Remove 1 screw. Fig. 2-95 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 57...
Page 74 Fig. 2-97 Take off the finisher with the hole punch unit. Note: Be careful not to fell the finisher when mov- ing only the finisher unit. Fig. 2-98 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 58...
Page 75 Disconnect 2 connectors. Fig. 2-99 (10) Remove 2 screws. Fig. 2-100 (11) Lift up the punch unit and take it off. Fig. 2-101 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 59...
Page 76 Take off the connector cover and disconnect connector. Fig. 2-102 Remove 1 screw and the ground wire. Fig. 2-103 Take off the cover of the punch unit lower side. Fig. 2-104 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 60...
Page 77 Be careful not to fell the finisher when mov- ing only the finisher unit. Fig. 2-106 Remove 1 screw and take off the connector cover. Fig. 2-107 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 61...
Page 78 Take off the cover of the punch unit lower side. Fig. 2-109 (10) Remove 4 screws. Lift up the punch unit and take it off. Fig. 2-110 e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 62...
Page 79 Turn OFF the power and unplug the power cable. Open the bridge unit. Remove 1 screw. Fig. 2-111 Take off the cover. Fig. 2-112 Remove 1 screw. Fig. 2-113 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE 2 - 63...
Page 80 Remove 4 screws and take off the plate. Fig. 2-114 Disconnect 1 connector. Fig. 2-115 Lift up the bridge unit and release the hook. Take off the bridge unit toward the front. e-STUDIO2500c/3500c/3510c OUTLINE OF THE MACHINE May 2006 © TOSHIBA TEC 2 - 64...
Page 81: Copy Process
Transfer belt Main charger Developer unit 2nd transfer roller EPU ( Y ) EPU ( C ) Laser optical unit EPU ( M ) EPU ( K ) Fig. 3-2 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c COPY PROCESS 3 - 1...
Page 82: Details Of Copying Process
(11) (–) Discharging: Eliminates the residual (–) charge from the surface of the photocon- ductive drum. e-STUDIO2500c/3500c/3510c COPY PROCESS May 2006 © TOSHIBA TEC 3 - 2...
Page 83 Time ( t ) Colored area of original -500 White area of original Discharge Charging -1000 process process Electric potential of the photoconductive drum Fig. 3-5 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c COPY PROCESS 3 - 3...
Page 84 (image signals), which are then transmitted to the image processing section via the scanning section control PC board. CCD board Scanning section control PC board Image processing section Fig. 3-7 e-STUDIO2500c/3500c/3510c COPY PROCESS May 2006 © TOSHIBA TEC 3 - 4...
Page 85 (laser emission) by the semiconductor laser element, which are then used to expose the drum surface, thus forming an electrostatic latent image there. Image processing section Laser driving PC board Polygonal mirror Semiconductor laser element Drum-Y Drum-M Drum-C Drum-K Fig. 3-9 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c COPY PROCESS 3 - 5...
Page 86 Image is developed by toner - 300V When the (–) potential of the photoconductive drum is lower than - 200V the developer bias. - 100V Fig. 3-12 e-STUDIO2500c/3500c/3510c COPY PROCESS May 2006 © TOSHIBA TEC 3 - 6...
Page 87 1. Image density is lowered. 2. Toner scattering occurs. 3. Background fogging occurs. Solution: Replace the developer material. Toner Carrier Where toner is caked, no frictional electrification occurs. Fig. 3-14 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c COPY PROCESS 3 - 7...
Page 88 ↓ This is caused by the lines of magnetic force between the south and north poles. Lines of magnetic force Photoconductive drum Magnetic roller Fig. 3-15 e-STUDIO2500c/3500c/3510c COPY PROCESS May 2006 © TOSHIBA TEC 3 - 8...
Page 89 In the copy process of this equip- ment, images are transferred in the order of Y→M→C→K on the transfer belt. Transfer belt Photoconductive drum Fig. 3-16 1st transfer roller Transfer belt Toner Fig. 3-17 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c COPY PROCESS 3 - 9...
Page 90 The paper is subjected to the heat and pressure when passing through the fuser belt and the pres- sure roller. ↓ (Fusing) The toner on the paper is fused to it. Pressure roller Pressure Separation Fuser belt roller Fuser roller Fig. 3-19 e-STUDIO2500c/3500c/3510c COPY PROCESS May 2006 © TOSHIBA TEC 3 - 10...
Page 91 The toner removed is then caught by the conductive recovery blade in order to pre- vent the toner from scattering to outside of the cleaner. Conductive recovery blade Drum rotation Cleaning blade Fig. 3-21 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c COPY PROCESS 3 - 11...
Page 92 All of the (–) charge remaining on the photoconductive drum is conducted away to ground (However, (+) charge is eliminated by the conductive blade as mentioned in 9)). ↓ Preparation for the next copying process is completed. Photoconductive drum Discharge LED array Fig. 3-22 e-STUDIO2500c/3500c/3510c COPY PROCESS May 2006 © TOSHIBA TEC 3 - 12...
Page 93: Comparison With E-Studio281C/351C/451C
3) Simultaneous cleaning and discharg- 3) Discharging by the conductive removal ing by the conductive blade recovery blade 9. Transfer belt cleaning Blade cleaning Blade cleaning (contact/release mechanism) 10.Discharge LED array (red) ← May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c COPY PROCESS 3 - 13...
Page 94 2) None Oil roller (ø18) Cleaning roller (ø16) 3) ← 3) Heater temperature 3) ON/OFF control and power control by thermistor 4) Heater 4) IH coil 4) Heater lamp e-STUDIO2500c/3500c/3510c COPY PROCESS May 2006 © TOSHIBA TEC 3 - 14...
Page 95: General Operation
GENERAL OPERATION Overview of Operation Operation of equipment Operation during initializing, pre-running and ready Drawer feed copying by the [ START ] button Copying operation Bypass feed copying Interrupt copying May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 1...
Page 96: Description Of Operation
→ When no button is pressed for a certain period of time, - Set number “1” and reproduction ratio “100%” are displayed. Equipment returns to the normal ready state. e-STUDIO2500c/3500c/3510c GENERAL OPERATION May 2006 © TOSHIBA TEC 4 - 2...
Page 97: Drawer Feed Copying (1St Drawer Paper Feeding)
→ Laser emission (magenta image) → 1st transfer bias (M) turned ON 1st transfer of magenta image (Magenta image is transferred to the transfer belt) → 1st transfer bias (M) turned OFF May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 3...
Page 98 → Drum, fuser unit and developer unit are stopped Fans return to rotate at the normal rotation speed → “READY” is displayed and the equipment enters into ready mode e-STUDIO2500c/3500c/3510c GENERAL OPERATION May 2006 © TOSHIBA TEC 4 - 4...
Page 99 Timing chart for copying (A4/LT size, 1 sheet from 1st drawer) 1) Color copy Fig. 4-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 5...
Page 101: Bypass Feed Copying
→ LED “INTERRUPT” is turned OFF by pressing the [INTERRUPT] button, and the equipment returns to the status before the interruption. → “Ready to resume job 1” is displayed. 4) Press the [START] button The copying operation before the interruption is resumed. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 7...
Page 102: Detection Of Abnormality
(D) No toner in the cartridge (E) EPU not installed properly (F) Toner bag replacement 3) Abnormality not cleared without turning OFF the main switch (G) Call for service e-STUDIO2500c/3500c/3510c GENERAL OPERATION May 2006 © TOSHIBA TEC 4 - 8...
Page 103: Description Of Abnormality
At this time, if the empty sensor is It is judged that there is paper. OFF: It is judged that there is no paper. Drawer area of the control panel blinks. (When the drawer is selected) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 9...
Page 104 * Registration sensor (S28) is not turned ON in a fixed period of time (E120) Bypass misfeeding Bypass misfeed symbol is displayed The copying operation is disabled. Solution: The bypass sensor (S40) is turned OFF by removing the paper from the bypass tray. e-STUDIO2500c/3500c/3510c GENERAL OPERATION May 2006 © TOSHIBA TEC 4 - 10...
Page 105 The registration sensor (S28) is not turned ON in a fixed period of time after the leading edge of paper passed the transport roller. Paper jam (E120, E200, E210, E300, E330 and E3C0) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 11...
Page 106 (E) EPU not installed properly Disconnection of the connectors of the EPU “Latch the developer unit” is displayed. Solution: Install the EPU and close the front cover. e-STUDIO2500c/3500c/3510c GENERAL OPERATION May 2006 © TOSHIBA TEC 4 - 12...
Page 107 (G) Call for service 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 Service Handbook. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 13...
Page 108: Flow Chart
Call for service "C411" Fuser "C412" belt ready for pre-running? "C443" "C445" "C446" "C449" Fuser motor ON "C465" Tray-up motor ON "C466" Drum motor ON "C468" Transfer belt motor ON e-STUDIO2500c/3500c/3510c GENERAL OPERATION May 2006 © TOSHIBA TEC 4 - 14...
Page 109 Fuser Call for service "C411" temp. abnormal? "C412" "C413" "C445" "C446" Fuser belt "C449" reached ready "C465" temp. ? "C466" "C468" Fuser motor OFF Tray-up motor OFF READY May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 15...
Page 110: Automatic Feed Copying
Scanner system set number=0? control completed Exit sensor check leading edge? Paper jam "E010" Exit sensor check trailing edge? Paper jam "E020" Transport motor OFF Exit motor OFF READY READY e-STUDIO2500c/3500c/3510c GENERAL OPERATION May 2006 © TOSHIBA TEC 4 - 16...
Page 111 Drum motor OFF Laser emission ( cyan image ) Transfer belt motor OFF Discharge LED OFF 1st transfer ( cyan image ) Recovery blade bias OFF Processing system control completed May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c GENERAL OPERATION 4 - 17...
Page 112 Call for service "CEC0" 2nd transfer bias OFF Drum motor OFF Transfer belt motor OFF Discharge LED OFF Recovery blade bias OFF Processing system control completed e-STUDIO2500c/3500c/3510c GENERAL OPERATION May 2006 © TOSHIBA TEC 4 - 18...
Page 113: Control Panel
LCD panel. When paper jams and “Call for service” occur, error codes are also displayed to notify users of the problem. A color LCD is used in this equipment so that visibility and operability are improved. Fig. 5-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 1...
Page 114: Items Shown On The Display Panel
Displays error code, paper jam position and paper jam release guidance, etc. Error code Message Paper jam position Service call symbol No toner in the cartridge Jam release guidance Toner bag replacement Fig. 5-3 e-STUDIO2500c/3500c/3510c CONTROL PANEL May 2006 © TOSHIBA TEC 5 - 2...
Page 115: Message
Scanning is enabled FULL) READY Incorrect paper size setting (CHANGE DRAWER TO CORRECT PAPER SIZE) Ready for bypass feeding Paper is set on the bypass tray COPYING At the copying state May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 3...
Page 116 Select the same size Displayed when the size of insertion insert1 sheets as the origi- sheet (sheet 1) is different from that nals of other pages at Sheet Insertion Mode e-STUDIO2500c/3500c/3510c CONTROL PANEL May 2006 © TOSHIBA TEC 5 - 4...
Page 117 Check DEPARTMENT department counter COUNTER Cannot copy TWIN COLOR Displayed when the number of print- mode outs exceeds the limit number of Check DEPARTMENT department counter COUNTER May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 5...
Page 118 PRESS [BASIC] and select Displays the warning that the copy is normal paper size not enabled when any drawer but bypass feed is selected at Cover Sheet Mode or Sheet Insertion Mode. e-STUDIO2500c/3500c/3510c CONTROL PANEL May 2006 © TOSHIBA TEC 5 - 6...
Page 119 (at every the cleaning, check if there is any output of approx. 10,000 sheets) detection error, breakage or poor connection of the needle electrode cleaner detection sensor. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 7...
Page 120: Relation Between The Equipment State And Operator's Operation
Display not changed Display not Display not changed [TEMPLATE] screen changed button Press [USER Displays USER FUNC- Display not changed Display not Display not changed FUNCTIONS] TIONS screen changed button e-STUDIO2500c/3500c/3510c CONTROL PANEL May 2006 © TOSHIBA TEC 5 - 8...
Page 121 Display not Display not TOR/ PAUSE] changed changed changed changed changed button Press [FAX] Displays FAX Display not Display not Displays FAX Displays FAX button screen changed changed screen screen May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 9...
Page 122 ING” and RADF changed “COPYING” “COPYING” and mode is cleared original set on starts feeding and RADF RADF starts feed- and displays RADF starts feeding BASIC screen e-STUDIO2500c/3500c/3510c CONTROL PANEL May 2006 © TOSHIBA TEC 5 - 10...
Page 123: Description Of Operation
2) Block diagram Inverter D0-D7 VSS = V1 DISP SEG Driver IC AC signal generation LOAD circuit LCD panel Driver IC to each SEG IC DC-DC VCONT converter DISP Fig. 5-5 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 11...
Page 124 Hard-key matrix LED driver Buzzer Fig. 5-6 4) Data Transmission 1/tF 1/tF FRAME LOAD FRAME LOAD CP x ( 640 x R, G, B ) /8 pulses D0-D7 Fig. 5-7 e-STUDIO2500c/3500c/3510c CONTROL PANEL May 2006 © TOSHIBA TEC 5 - 12...
Page 125: Led Display Circuit
1) The transistor (Q5) connected to the LED anode is ON. 2) The transistor (Q12) connected to the LED cathode side is ON. The LED is turned ON when 1) and 2) are satisfied. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 13...
Page 126: Disassembly And Replacement
“b”, remove the stopper or move it to the position “a”. Fig. 5-9 [A] Stopper Slide the stopper and pull it out. Stopper Fig. 5-10 e-STUDIO2500c/3500c/3510c CONTROL PANEL May 2006 © TOSHIBA TEC 5 - 14...
Page 127 Lower the control panel and remove 2 screws. Take off the control panel unit while sliding it. Control panel unit Fig. 5-12 Remove 3 screws and take off the cover. Cover Fig. 5-13 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 15...
Page 128 Release the harness from 2 harness clamps. (10) Remove 1 screw and take off the DSP board. DSP board Fig. 5-15 (11) Remove 4 screws and take off the LCD. Fig. 5-16 e-STUDIO2500c/3500c/3510c CONTROL PANEL May 2006 © TOSHIBA TEC 5 - 16...
Page 129 (12) Remove 16 screws and take off the KEY board. KEY board Fig. 5-17 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c CONTROL PANEL 5 - 17...
Page 131: Scanner
Blue). These lines are composed with 3-line color devices and black-and-white device with no filter. Lens RADF original glass Reflector Original glass Exposure lamp Drive pulley Rail for carriage-2 Rail for carriage-1 Carriage-2 SLG board Carriage-1 CCD board Fig. 6-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 1...
Page 132: Construction
2-phase stepping motor • Wire drive • Driving the carriage-1 and carriage-2 Other Scanning section control PC board (SLG) Carriage home position sensor (S6) Platen sensor (S7) Main switch (SW1) Rubber damper e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 2...
Page 133: Functions
Controls lighting of the exposure lamp (EXP). Reflector This is a plate to efficiently direct the light from the exposure lamp (EXP) to the surface of the original on the glass. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 3...
Page 134 Fig. 6-4 4) Lens unit The light reflected from the mirror-3 is led to the CCD placed at the focal point of the lens which is fixed in a position. e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 4...
Page 135 7) Automatic original detection sensor (S1-5) The size of an original placed on the glass is instantly detected using the automatic original detec- tion sensors (S1-5) fixed on the base frame without moving the carriage-1. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 5...
Page 136: Description Of Operation
The carriage-1 stays at the shading position during shading correction, and at the scanning posi- tion during scanning operation. • Scanning velocity The scanning velocity at color modes is reduced to a half of it at the Black Mode. e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 6...
Page 137: Initialization At Power-On
Carriage home position Deceleration Stop data set Deceleration Stop Moving peak detection position Peak detection Completion of initialization Moving carriage waiting position Scanning command Fig. 6-7 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 7...
Page 138: Electric Circuit Description
Low level MOTCLK Reference clock MOTEN Enable signal MOTDIR Rotation direction signal MOTRST Reset signal Normal operation Reset * CW: Clockwise rotation, CCW: Counter clockwise rotation viewing from the axis e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 8...
Page 139: Exposure Lamp Control Circuit
Black reference formation - reads the light amount at the regulation position with the exposure lamp lights OFF Original Shading correction plate Exposure lamp ( Xenon lamp ) Lighting device for exposure lamp (Inverter board) CCD sensor SLG board Scanner CCD board Fig. 6-9 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 9...
Page 140 ( 4 ) Ultraviolet lay ( 5 ) Fluorescer ( 6 ) Visible light ( irradiated from the opening to outside the pipe ) ( 7 ) Openig ( 8 ) Harness Fig. 6-11 e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 10...
Page 141 +5VSW ON signal LMPEN-0 Exposure lamp enable signal Exposure LAMPON-0 WDTOUT-0 5VSOW-0 LMPEN-0 +5VSW State of equipment lamp Normal operation Scanner CPU overdriving Call for service Abnormality detected (Check sum error) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 11...
Page 142: General Description Of 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-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 12...
Page 143: Automatic Original Size Detection Circuit
(when scanning black image). [ A4 Series ] [ LT Series ] Original Original glass Original Original glass APS-R APS-R APS-3 APS-3 APS-2 APS-1 APS-C APS-C APS-2 Fig. 6-13 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 13...
Page 144 [ LT Series ] +5VAPS +5VAPS +5.1VB +5.1VB APS-R APS-R APS-C APS-C Reflection type Reflection type Scanner Scanner APS-3 photosensor photosensor APS-3 APS-2 APS-1 APS-2 SLG board SLG board Fig. 6-14 e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 14...
Page 145 Sensor detection points [A4 Series] APS-R APS-C A5–R B5–R A4–R APS-3 APS-1 APS-2 Fig. 6-15 [LT Series] APS-R APS-C ST–R APS-3 LT–R APS-2 Fig. 6-16 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 15...
Page 146 * When the platen sensor (S7) is ON; The latest original size (or no original state) recognized right before the platen sensor (S7) is turned ON is retained regardless of the status the APS sensor output signals. e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 16...
Page 147 The light emitting diode is driven by a pulse having a 130 µsec. cycle and an 8 µsec. ON time. When the phototransistor receives the same signal as this pulse, it is determined that there is an original. The pulse modulation is performed inside the reflection type phototransistor. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 17...
Page 148: Disassembly And Replacement
When installing, fit 2 small protrusions of the original glass in the groove of the equipment and fix the original glass with the fixing bracket by pushing it to the left rear direction. Fig. 6-19 e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 18...
Page 149 A4 series (APS-1, -2, -3, -C, -R) Take off the original glass. P.6-18 "[A] Original glass" Disconnect 1 connector and remove 1 screw for each APS sensor. Take off 5 APS sen- sors. Fig. 6-21 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 19...
Page 150 Disconnect the connector of the exposure lamp. Note: When disconnecting the connector, pay attention not to give load to the carriage frame. Release the harness from the harness clamp. Fig. 6-24 e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 20...
Page 151 Fig. 6-25 Remove 1 screw. Lift up the front side of the exposure lamp Exposure lamp and take off by sliding it. Fig. 6-26 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 21...
Page 152 Fig. 6-28 4. Handle the unit with care. Do not touch the adjusted area and lens. (Hold the unit as the right figure.) Fig. 6-29 e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 22...
Page 153 4. The scan motor is pulled by the belt ten- sion jig. Fix the screw B and then C at the stopped position. 5. Remove the belt tension jig. Fig. 6-32 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 23...
Page 154 Then take off the carriage-1. Note: When replacing the mirror-1, replace the car- riage-1 together with mirror-1. Mirror-1 should not be removed. Fig. 6-35 e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 24...
Page 155 Attach the wire holder jigs to the pulleys to prevent the wires from loosening. Note: Refer to “3.12 Adjustment of the Scanner Section” in the Service Handbook for the direction of the wire holder jigs. Fig. 6-38 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 25...
Page 156 Remove the seal. Disconnect 1 connector. Release the latches and take off the carriage home position sen- sor. Carriage home position sensor Fig. 6-41 e-STUDIO2500c/3500c/3510c SCANNER May 2006 © TOSHIBA TEC 6 - 26...
Page 157 P.2-35 "[Q] Upper rear cover" Disconnect 1 connector. Release the har- ness from the harness clamp. Remove 2 screws and take off the scanner unit cooling fan. Scanner unit cooling fan Fig. 6-43 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c SCANNER 6 - 27...
Page 159: Image Processing
SYS board Black over print, pure black/pure gray, chroma adjustment, brightness adjustment and con- trast adjustment LGC board Smoothing processing, image area control and laser related control May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c IMAGE PROCESSING 7 - 1...
Page 160 Images are processed by the IMG board, SYS board and LGC board in this equipment. Also, the image signals read with the Scanning Function and the printer image signals are processed in the IMG board and SYS board. e-STUDIO2500c/3500c/3510c IMAGE PROCESSING May 2006 © TOSHIBA TEC 7 - 2...
Page 161: Configuration
Scanner high quality image processing Printer high quality image processing LGC board ASIC : Image data flow Laser related control Smoothing processing LDR board ASIC Laser drive Fig. 7-3 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c IMAGE PROCESSING 7 - 3...
Page 162: Image Processing Pc Board (Img)
By using this function, it is possible to cut the background density down when copying originals which have a certain level of background density, such as newspa- pers. e-STUDIO2500c/3500c/3510c IMAGE PROCESSING May 2006 © TOSHIBA TEC 7 - 4...
Page 163 Density of the targeted pixel position is X. Density of pixel positions at front and back of the tar- geted pixel are “a” and “b” respectively. X is converted to X’ through the low pass filtering. When the matrix is (3 x 1): a+b+x x' = May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c IMAGE PROCESSING 7 - 5...
Page 164 Pixel data for one line in the primary scanning direction is stored in the line memory and the memory is renewed at each line. Enlargement/Reduction Enlargement/Reduction is accomplished by using the line memory control function in the process of the image processing operation. e-STUDIO2500c/3500c/3510c IMAGE PROCESSING May 2006 © TOSHIBA TEC 7 - 6...
Page 165 This function corrects the image signals scanned by the scanner and reproduces them in a higher image quality. 12)Printer high quality image processing This function reproduces the image signals output from the printer controller in a higher image qual- ity. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c IMAGE PROCESSING 7 - 7...
Page 166: System Control Pc Board (Sys)
This function adjusts chromaticness of the printer data. 4) Brightness adjustment (PCL6C) This function adjusts brightness of the printer data. 5) Contrast adjustment (PostScript, PCL6C) The contrast adjustment is applied to the print data. e-STUDIO2500c/3500c/3510c IMAGE PROCESSING May 2006 © TOSHIBA TEC 7 - 8...
Page 167: Logic Pc Board (Lgc)
2) Image area control This function sets the effective image area in horizontal and vertical directions to be output. 3) Laser related control This function performs the APC (Auto Power Control). May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c IMAGE PROCESSING 7 - 9...
Page 169: Laser Optical Unit
The unit must not be disassembled in the field as they are very sensitive to dust and finely adjusted at the factory. The polygonal motor in e-STUIO3510c is different from the one in e-STUDIO2500c/3500c, and rotates faster. In order to avoid effects by the consequently increased heat and current, in e-STUDIO3510c, the driving PC board is placed outside the laser unit instead of being unified with the polygonal motor.
Page 170 Aperture (Y) Laser diode (C) Fine focus lens (Y) Fine focus lens (C) Laser diode (Y) Aperture (C) Laser driving PC board (Y) Cylinder lens (C) Fig. 8-2 e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 2...
Page 171: Structure
The laser unit is completely sealed with a protective cover. As long as only the operations of specified manuals are performed, the laser beam is not leaked and you are in no danger of being exposed to laser radiation. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT 8 - 3...
Page 172 "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-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 4...
Page 173 One scan is completed by completion of steps (A) to (C). One scan is performed on one plane of the polygonal mirror. Eight scans can be made with one rotation of the polygonal mirror. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT 8 - 5...
Page 174 (every 10k copies) prompting a user to clean the glass. Ask a user to perform cleaning when it appears. Although the slit glass cleaning pad is not a preventive mainte- nance part, replace it if it becomes dirty. e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 6...
Page 175 With the Y color scanning line as a standard, a mirror motor installed at each of the M, C and K color beam mirrors is driven to adjust the degree of laser beam parallelization by inclining the mirror. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT...
Page 176: Electric Circuit Description
Power source Laser power Semiconductive laser Laser driver comparison circuit circuit Constant optical output Monitor efficiency Monitor output regulation circuit Fig. 8-9 e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 8...
Page 177: Polygonal Motor Control Circuit
Conrol signal Status Signal Function High level Low level PMMTR Motor ON signal PMCK Refernce clock PMSNC PLL control signal Stopping or error Locked (Rotating at a constant speed) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT 8 - 9...
Page 178: Mirror Motor Control Circuit
IC41 ASIC TILTC +5VSW +24VD1 IC12 Mirror motor-K TILTK Fig. 8-11 Control signal Status Signal Function High level Low level TILT0/1/2/3 Mirror motor phase signal TILTM/C/K Enable signal e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 10...
Page 179 Relation between enable signal and motor to be driven Signal Motor to be driven TILTM TILTC TILTK Mirror motor-M Mirror motor-C Mirror motor-K None (No tilt adjustment) * Not available in the above combination May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT 8 - 11...
Page 180: Disassembly And Replacement
Take off the used toner motor unit. P.12-23 "[C] Used toner motor cover" Disconnect 2 connectors of the laser optical unit. Fig. 8-12 Remove 2 screws. Fig. 8-13 e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 12...
Page 181 5. Hold the laser optical unit vertically. Do not press the top of the unit (the cover) where the slit glass and the polygonal motor are installed with your hands or other things. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT 8 - 13...
Page 182 Perform steps (1) and (2) only when the Damp Heater Kit (optional) is installed. Open the board case. P.2-43 "[K] Board case" Disconnect 1 connector of the Damp Heater Kit (optional). Fig. 8-17 e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 14...
Page 183 Disconnect 1 connector. Fig. 8-19 Remove 7 screws and take off the metal plate on the left side. Note: Plate Check printed images after assembling the unit. Fig. 8-20 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT 8 - 15...
Page 184 Remove the E-ring. Then remove 1 gear, 1 spring and 1 polyslider. Note: When assembling the unit, be sure to install Gear the polyslider. Spring Polyslider Fig. 8-23 e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 16...
Page 185 Damp heater Fig. 8-25 Remove 1 clip, and then slide the actuator to the rear side. Actuator Note: Be sure not to lose the removed pin. Clip Fig. 8-26 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT 8 - 17...
Page 186 Open the front door. Then take off the slit glass cleaner. Slit glass cleaning pad Press 2 latches to the inner side, and then remove the slit glass cleaning pad. Fig. 8-28 e-STUDIO2500c/3500c/3510c LASER OPTICAL UNIT May 2006 © TOSHIBA TEC 8 - 18...
Page 187: Drive System
Bypass feed clutch: Bypass transport roller, bypass feed roller and bypass pickup roller Tray-up motor (M21) • 1st drawer tray Ch.10. • 2nd drawer tray ADU motor (M22) ADU (Upper, middle and lower transport roller) Ch.16. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DRIVE SYSTEM 9 - 1...
Page 189: Paper Feeding System
2nd drawer paper stock sensor (S37) Registration roller (rubber roller) 1st drawer detection switch (SW5) Registration roller (metal roller) 2nd drawer detection switch (SW6) Bypass paper sensor (S40) Registration sensor (S28) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 1...
Page 190: Composition
Bypass feed sensor Bypass pickup solenoid SOL1 Bypass tray slide guide width detection PC board Bypass feed clutch CLT8 Feed/transport motor Registration motor Registration roller Registration sensor Tray-up motor e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 2...
Page 191: Functions
ON, the tray-up motor is turned OFF to stop the upward movement of the tray. 12)Drawer detection switch (1st drawer (SW5) / 2nd drawer (SW6)) This switch detects if the drawer is fully inserted. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 3...
Page 192 This is a solenoid to move down the bypass pickup roller. 20)Paper width detection board (SFB) This sensor works directly with the sidewalls of the bypass tray to detect the paper width on the tray. e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 4...
Page 193: Drive Of Rollers
Bypass feed clutch ( CLT8 ) Bypass feed roller Bypass pickup roller Registration motor ( M19 ) Registration roller Tray-up motor ( M21 ) Trays in 1st/2nd drawer May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 5...
Page 194: Operation Of Bypass Pickup Roller
The roller is rotated by this driving force. Bypass pickup solenoid Spring Pickup roller Lever Pickup arm Fig. 10-2 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 6...
Page 195: Operation Of Drawer Pickup Roller
When the drawer is inserted, the protrusion at the rear side of the drawer moves up the lever (a) to the direction of A. The pickup roller and roller holder are then lowered by it's own weight. Insertion direction Lever (a) Pickup roller Fig. 10-3 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 7...
Page 196: Separation Of Paper
A is transported to the direction of the black arrow and the paper B is braked by the separation roller and is not transported any further. Feed roller Separation roller Fig. 10-5 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 8...
Page 197: General Operation
The bypass feed clutch (CLT8) is turned OFF, and then the bypass pickup roller, bypass feed roller and bypass transport roller are stopped. • The registration motor (M19) is turned ON and the paper is transported to the 2nd transfer position. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 9...
Page 198 The feed clutch (CLT3) and the transport clutch (high speed) (CLT1) is turned OFF and the transport roller is stopped. • The registration motor (M19) and transport clutch (low speed) (CLT2) are turned ON and the paper is transported to the 2nd transfer position. e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 10...
Page 199: Electric Circuit Description
CS1TUMB-1A OFF (high impedance) Stop CW (Tray-up of 2nd drawer) CCW (Tray-up of 1st drawer) Brake * CW: Clockwise rotation, CCW: Counter clockwise rotation viewing from the axis May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 11...
Page 200: Registration Motor Control Circuit
RGMCK Reference clock RGMEN Enable signal RGMCW Rotation direction signal RGMRST Reset signal Normal operation Reset * CW: Clockwise rotation, CCW: Counter clockwise rotation viewing from the axis e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 12...
Page 201: Feed/Transport Motor Control Circuit
* When the rotation speed of the motor is set to a low speed, FDMGA signal is changed to a low level to suppress the rotation fluctuation of the motor. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 13...
Page 202: Disassembly And Replacement
1 connector and release the harnesses from 1 harness clamps. Connector Fig. 10-9 Remove 1 screw and take off the bypass feed rear cover. Bypass feed rear cover Fig. 10-10 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 14...
Page 203 Connector Fig. 10-12 Release the spring from the hook. Note: Release it while the tray is standing so as to weaken the tension of the spring. Fig. 10-13 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 15...
Page 204 Take off the hinge assembly. P.10-15 "[A-2] Hinge assembly" Bypass tray upper cover Remove 3 screws, release 4 latches and 3 hooks, and take off bypass tray upper cover. Fig. 10-16 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 16...
Page 205 Install the bracket so that its pointer is placed at the same position as before. Pointer Fig. 10-18 Disconnect 1 connector, remove 1 screw and take off the SFB board. SFB board Fig. 10-19 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 17...
Page 206 Take off the bypass feed upper cover. P.10-18 "[A-4] Bypass feed upper cover" Bypass upper guide Remove 4 screws and take off the bypass upper guide. Fig. 10-21 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 18...
Page 207 Bypass paper sensor (S40) Take off the bypass feed upper cover. P.10-18 "[A-4] Bypass feed upper cover" Remove 4 screws and take off the upper plate. Upper plate Fig. 10-24 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 19...
Page 208 Shaft the surface of timing belt, the pulley and the roller. Fig. 10-27 5. Install the bypass pickup roller and the bypass feed roller in the correct direction. e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 20...
Page 209 Take off the bypass upper guide. P.10-18 "[A-5] Bypass upper guide" Remove the E-ring, pull out the shaft and take off the bypass transport roller. E-ring Bushing Bypass transport roller Bushing Fig. 10-29 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 21...
Page 210 Fig. 10-31 [A-12] Bypass separation roller Take off the bypass unit. P.10-14 "[A-1] Bypass unit" Remove 3 screws and take off the lower plate. Lower plate Fig. 10-32 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 22...
Page 211 Fig. 10-34 [A-13] Bypass feed sensor (S41) Take off the bypass unit. P.10-14 "[A-1] Bypass unit" Remove 3 screws and take off the lower plate. Lower plate Fig. 10-35 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 23...
Page 212 Take off the upper and lower drawers. Remove 1 screw and take off the drawer feeding unit by sliding it to the front side. Drawer feeding unit Fig. 10-38 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 24...
Page 213 Paper stock sensor Pull up the paper stock sensor arm. Disconnect the connector and release the latch to take off the paper stock sensor. Sensor arm Fig. 10-40 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 25...
Page 214 Detach the cover, the arbor and the clutch spring from the shaft, and then takeoff the separation roller. Arbor Cover Separation roller Shaft Arbor Clutch spring Fig. 10-43 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 26...
Page 215 Belt Fig. 10-45 Remove 3 E-rings, pulley, one-way clutch and take off the pickup roller. E-ring One-way clutch Pickup roller E-ring Pulley Fig. 10-46 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 27...
Page 216 Remove 2 screws and take off the clutch with the bracket. Note: Match the protruding portion of clutch with the position shown in the figure for assem- bling Bushing Clutch bracket Fig. 10-48 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 28...
Page 217 Be careful in taking off the cover because there is a spring in the tray drive unit. Coupling Fig. 10-50 Take off the tray-up motor. Tray-up motor Fig. 10-51 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 29...
Page 218 When assembling the clutch, match the pro- truded portion of the clutch with the position shown in the figure. 2nd drawer transport clutch ( Low speed ) Fig. 10-54 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 30...
Page 219 Disconnect 1 connector each from both 1st drawer detection switch switches. Then release 2 latches to take off the switches by pushing them out toward the drawer. 2nd drawer detection switch Fig. 10-56 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 31...
Page 220 Take off the paper feed guide assembly. P.10-32 "[G] Paper feed guide assembly" 2nd drawer feed sensor Remove the seal and disconnect 1 connector to take off the 2nd drawer feed sensor. Fig. 10-58 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 32...
Page 221 Side cover switch Fig. 10-60 Registration guide Perform the output check (03-239) to set the plunger at the receded position before taking off the registration guide. Plunger Fig. 10-61 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 33...
Page 222 Disconnect 1 connector and remove 3 screws. Then take off the registration guide. Note: The outer 2 of these 3 screws are stepped screws. Registration guide Fig. 10-64 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 34...
Page 223 P.10-33 "[J] Registration guide" Disconnect 1 connector and remove 1 screw. Then take off the 1st drawer feed sensor with its bracket. 1st drawer feed sensor Fig. 10-67 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 35...
Page 224 Remove 1 screw on the rear side, and then remove the holder and spring. Holder Fig. 10-69 Take off the registration roller (rubber) with its holder. Registration roller ( Rubber ) Fig. 10-70 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 36...
Page 225 Open the board case. P.2-43 "[K] Board case" Take off the registration motor unit. P.10-37 "[N] Registration motor unit" Plate Remove 3 screws to take off the plate. Fig. 10-73 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 37...
Page 226 Take off the registration motor unit. P.10-37 "[N] Registration motor unit" Take off the registration guide. P.10-33 "[J] Registration guide" Take off the middle guide. Middle guide Fig. 10-76 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 38...
Page 227 Be sure not to drop the parallel pin. Clip Fig. 10-77 Remove 2 screws, and then take off the duct. Duct Fig. 10-78 Remove 1 screw, and then take off the cover. Cover Fig. 10-79 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 39...
Page 228 1st drawer transport clutch (Low speed). Note: When assembling the clutch, match the pro- truded portion of the clutch with the position shown in the figure. Fig. 10-82 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 40...
Page 229 (Low speed) (CLT2)" Disconnect 1 connector, and then release the harness out of the clamp. Remove 4 screws, and then take off the feed/transport gear unit. Fig. 10-84 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 41...
Page 230 Lift up the 1st drawer transport roller and take it off to the rear side. Remove 1 E-ring, 1 gear and 2 bushings from the 1st drawer transport roller. Fig. 10-86 e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM May 2006 © TOSHIBA TEC 10 - 42...
Page 231 Fig. 10-87 Remove 2 clips, and then take off the 2nd drawer transport roller by moving it to the rear side slightly. 2nd drawer transport roller Fig. 10-88 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PAPER FEEDING SYSTEM 10 - 43...
Page 233: Process Unit Related Section
Drum cleaner unit Drum Conductive recovery blade Toner recovery auger Cleaning blade Discharge LED Ozon duct Drum thermistor Main charger unit Main charger grid Needle electrode Fig. 11-2 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 1...
Page 234: Composition
ERS-Y, -M, -C, -K Temperature/Humidity sensor Ozone filter-1, -2 PM parts Ozone exhaust fan High-voltage transformer Drum motor Drum switching motor Toner bag Toner bag full detection sensor e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 2...
Page 235: Functions
LGC board. 7) Ozone filter Ozone produced by corona discharge of the main charger is exhausted through this filter. The catalyzer of the ozone filter degrades the ozone. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 3...
Page 236 Printing is interrupted upon the detection of “Toner bag full” status, however, the paper already fed is subject to be printed and exited. e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC...
Page 237: Electric Circuit Description
( Y/M/C/K ) ( Y/M/C/K ) HVTDDCC/K IC56 ASIC HVTTR1Y/M/C/K 2nd transfer 2nd transfer bias facing roller HVTTR2 HVTECC/K Recovery blade Cleaner bias ( Y/M/C/K ) Fig. 11-3 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 5...
Page 238 Leak detection signal (HVTSTS): This signal detects the abnormality (leakage) of the high-voltage transformer output. When the abnormality is detected, the signal moves to a low level. e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 6...
Page 239: Drum Temperature Detection Circuit
Therefore, when the temperature becomes higher, the input voltage to the A/D converter becomes lower. LGC board +3.3VB YDRTH Drum thermistor-Y IC53 Engine CPU +3.3VB KDRTH Drum thermistor-K Fig. 11-4 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 7...
Page 240: Drum Motor Control Circuit
Reference clock DMEN Enable signal DMDIR Rotation direction signal DMRST Reset signal Normal operation Reset * CW: Clockwise rotation, CCW: Counter clockwise rotation viewing from the axis e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 8...
Page 241: Drum Switching Motor Control Circuit
CKMMA-0C CKMMB-1C CKMMA-0A CKMMB-1A OFF (high impedance) Stop CW (Gear engaged) CCW (Gear disengaged) Brake * CW: Clockwise rotation, CCW: Counter clockwise rotation viewing from the axis May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 9...
Page 242: Disassembly And Replacement
When installing, wipe out toner on the drawer connector of the equipment because toner attached on the contacts of the connector will cause conduction blockage. Connector Fig. 11-9 e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 10...
Page 243 Figure. Remove 2 screws. Release the latch, and then take off the pro- cess cover. Latch Used toner exit hole Process cover Fig. 11-12 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 11...
Page 244 • Avoid a direct sunlight onto the drum. Move it to a dark place as soon as it is taken off. Developer unit Fig. 11-15 e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 12...
Page 245 Needle electrode rod all the way in before turning it 90 degrees, otherwise the needle electrodes may be damaged. Main charger cleaner rod Main charger cleaner Fig. 11-18 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 13...
Page 246 Needle electrode Take off the main charger grid. P.11-14 "[C-4] Main charger grid" Terminal cover Take off each terminal cover on both front and rear sides. Fig. 11-21 e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 14...
Page 247 Move it to a dark place as soon as it is sleeve Bearing taken off. • Be sure not to touch or scratch the edge Fig. 11-24 of the drum cleaning blade. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 15...
Page 248 Be careful not to have the seal on the rear side come off of the drum. Drum Seal Fig. 11-26 Gear Seal Drum Fig. 11-27 e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 16...
Page 249 Remove 3 screws and take off the drum cleaning blade. Note: Be sure not to touch or scratch the edge of the cleaning blade. Drum cleaning blade Fig. 11-30 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 17...
Page 250 P.11-10 "[A] Process unit (EPU)" P.11-12 "[C-1] Cleaning unit/ Developer unit" Remove 1 screw and take off the drum ther- mistor. Drum thermistor Fig. 11-32 e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 18...
Page 251 Remove the discharge LED from the protru- sion of the duct, and slide it to take it off. Discharge LED Protrusion Duct Fig. 11-34 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 19...
Page 252 Drum drive unit clamps. Disconnect the 1 connector and 2 relay con- nectors. Remove 3 screws and take off the drum drive unit. Relay connector Fig. 11-37 e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 20...
Page 253 [H] Drum switching motor (M11) Take off the Drum drive unit. P.11-20 "[F] Drum drive unit" Drum switching motor Remove 1 screw and take off the drum switching motor. Fig. 11-39 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 21...
Page 254 Notes: • When installing, take care of the direction of the spring. • Be careful not to damage the gear of the drum drive unit. Fig. 11-42 e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION May 2006 © TOSHIBA TEC 11 - 22...
Page 255 Sensor bracket Fig. 11-44 Disconnect 1 connector, and then release the latch to take off the drum switching Connector detection sensor. Drum switching detection sensor Fig. 11-45 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PROCESS UNIT RELATED SECTION 11 - 23...
Page 257: Developer Unit
Developer unit ( Y ) Developer unit ( M ) Developer unit ( C ) Developer unit ( K ) Process unit ( M ) Process unit ( K ) Process unit ( Y ) Process unit ( C ) Toner bag Fig. 12-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 1...
Page 258: Composition
S22, 23, 24, 25 EPU board EPU-Y, -M, -C, -K Developer unit motor Developer sleve (Magnet roller) Drum Developer unit Doctor blade Auto-toner sensor Mixer-2 Mixer-1 Main charger Fig. 12-2 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 2...
Page 259: Functions
When the used toner motor (M6) is locked due to the full status of the toner bag, the used toner motor lock detection sensor (S14) detects that the toner bag is full. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT...
Page 260 When either the used toner motor lock detection sensor (S14) or the toner bag full detection sensor (S13) is turned ON, the toner bag is judged as full of used toner. e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 4...
Page 261: Electrical Circuit Description
Temperature/ humidity sensor TEMP-1C (Temp) IC72 IC41 ADCDI-1C ASIC converter HMS-1C (Hum) IC84 Fig. 12-3 Control signal Signal Function TEMP-1C Temperature detection signal (analog) HMS-1C Humidity detection signal (analog) May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 5...
Page 262: Toner Motor Control Circuit
Status Signal Function High level Low level YTNMT Toner motor-Y ON signal MTNMT Toner motor-M ON signal Stop Rotate CTNMT Toner motor-C ON signal KTNMT Toner motor-K ON signal e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 6...
Page 263: Used Toner Motor Control Circuit
+5VSW +24VD3 +24VD3 Used toner IC56 motor TNMXMT ASIC IC67 Fig. 12-5 Control signal Status Signal Function High level Low level TNMXMT Used toner motor ON signal Stop Rotate May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 7...
Page 264: Auto-Toner Circuit
Engine CPU Toner NVRAM motor Toner A/D converter Toner density signal Auto-toner sensor Developer unit IC41 Developer material IC76 Control voltage signal ASIC converter IC72 Temperature/humidity sensor converter Fig. 12-6 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 8...
Page 265 Drives toner motor. → Supplies toner from the toner cartridge. → Output of the auto-toner sensor changes. → Toner density recovers to its normal value. → “Toner-empty” is cleared. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 9...
Page 266 When the toner density is high: Toner ratio to the carrier in the developer material increased → Magnetic resistance increased → Detection output decreased → Auto-toner output ATSN decreased e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 10...
Page 267: Disassembly And Replacement
Lift up the latch on the front side of the upper Latch cover as shown in the figure A, and release it by pulling the toner supply section in the direction shown in the figure B. Fig. 12-9 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 11...
Page 268 The latch shown in the figure F is also released accordingly. Latch Fig. 12-11 Take off the upper cover. Upper cover Fig. 12-12 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 12...
Page 269 Fig. 12-14 Rotate the knob in the direction described in the figure until the developer adheres on the surface of the developer sleeve evenly. Developer sleeve Knob Fig. 12-15 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 13...
Page 270 (11) Fill up the mixer section under the developer sleeve with the developer again. Developer sleeve Developer material Fig. 12-17 (12) Fill the other mixer section with all the remained toner. Mixer Fig. 12-18 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 14...
Page 271 4 latches while pushing the protrusions on the upper cover to the 6 concaves to fit them securely. Protrusion Hole Fig. 12-20 Latch Latch Rear side Front side Fig. 12-21 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 15...
Page 272 Remove the urethan seal (both front and rear sides). Front side urethan seal Front side Fig. 12-23 Rear side urethan seal Rear side urethan seal Rear side Fig. 12-24 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 16...
Page 273 (by slightly pushing it to the direction of the arrow). Fig. 12-26 Rear side urethan seal Fig. 12-27 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 17...
Page 274 Fig. 12-28 Disconnect the connector. Connector Fig. 12-29 Release the latch, and then take off the EPU PC board. Latch EPU PC board Fig. 12-30 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 18...
Page 275 Fig. 12-31 Hold the locking part to lift it up, and then turn the auto-toner sensor counterclockwise for Locking part 90 degrees to take it off. Auto-toner sensor Fig. 12-32 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 19...
Page 276 Bearing oper sleeve shaft (in order of the C-ring, Developer guide gear, developer guide, and bearing). Gear Idler gear Idler gear shaft Fig. 12-35 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 20...
Page 277 Before disassembling, record (mark if any) the scale pointed by the polarity adjustment lever. Then match the polarity adjustment plate at the scale previously recorded when reassembling. Polarity adjustment plate Fig. 12-38 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 21...
Page 278 Clip Clip Gear Fig. 12-40 Front side: Remove 2 clips and take off the 2 bushings and the front bushing holder. Bushing Front bushing holder Bushing Clip Fig. 12-41 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 22...
Page 279 Remove 1 screw and take off the stopper. Disconnect 2 relay connectors and remove 1 Stopper Relay connector screw. Then take off the used toner motor cover. Used toner motor cover Fig. 12-44 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 23...
Page 280 [F] Used toner motor lock detection sensor (S14) Take off the used toner motor. P.12-23 "[C] Used toner motor cover" Remove 1 screw and take off the sensor cover. Sensor cover Fig. 12-47 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 24...
Page 281 (S13)" P.12-24 "[F] Used toner motor lock detec- tion sensor (S14)" Remove 1 screw. Disconnect 1 relay connec- tor, and take off the used toner motor bracket. Fig. 12-50 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 25...
Page 282 Take off the switching regulator and drum drive unit. Developer drive unit P.2-41 "[G] Switching regulator" P.11-20 "[F] Drum drive unit" Remove 1 screw on the right side of the developer drive unit. Fig. 12-53 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 26...
Page 283 Take off the tray back cover and transfer belt cleaning unit". P.2-28 "[C] Tray back cover" P.13-11 "[A-1] Transfer belt cleaning unit" Toner cover (2) Remove 2 screws and take off the toner cover. Fig. 12-55 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 27...
Page 284 Pull out the toner rod to the front of the Toner motor assembly equipment. Remove 1 clip and take off the toner motor assembly from the toner rod. Clip Toner rod Fig. 12-58 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 28...
Page 285 Toner cartridge detection sensor. Connector Fig. 12-60 [M] Ozone filter-1 Remove 1 screw, and then take off the ozone filter-1. Ozone filter-1 Fig. 12-61 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 29...
Page 286 [P] Internal cooling fan (M23) Open the board case. P.2-43 "[K] Board case" Remove 2 screws. Disconnect 1 relay con- nector, and take off the internal cooling duct. Internal cooling duct Fig. 12-64 e-STUDIO2500c/3500c/3510c DEVELOPER UNIT May 2006 © TOSHIBA TEC 12 - 30...
Page 287 Remove the ozon filter-2. Note: When installing the ozone filter-2, be sure to insert it all the way in and be careful not to damage the mesh. Ozone filter-2 Fig. 12-67 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c DEVELOPER UNIT 12 - 31...
Page 289: Transfer Unit
Transfer belt Image quality sensor Drive roller cleaning mylar Image position aligning 2nd transfer roller Transfer belt cleaning blade sensor ( front / rear ) position detection sensor Fig. 13-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 1...
Page 290: Composition
2nd transfer roller position detection sensor Paper clinging detection sensor Image position aligning sensor S16 / S17 (front / rear) Image quality sensor S18 (Chapter 14) Registration motor M19 (Chapter 10) e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 2...
Page 291: Functions
This sensor installed in the transfer belt unit detects the timing to apply brake on the 1st transfer roller cam motor, and also detects if the 1st transfer rollers are at their contacting or releasing posi- tion. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 3...
Page 292 This sensor forestalls such case and helps to remove it as a normal paper jam. e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 4...
Page 293: General Description Of Operation
7) When the toner image has been transferred onto the paper in the 2nd transfer process, the residual toner on the transfer belt is scraped off by the transfer belt cleaning blade. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT...
Page 294: Printing In The Black Mode
7) When the toner image has been transferred onto the paper in the 2nd transfer process, the residual toner on the transfer belt is scraped off by the transfer belt cleaning blade. e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 6...
Page 295: Color Registration Control
Corrections will be made after four types of deviation are calculated according the measurement: paral- lel deviation in the secondary-scanning direction; deviation of write start position in the primary-scan- ning direction; deviation of reproduction ratio in the primary-scanning direction and tilt deviation May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 7...
Page 296 • Deviation caused by meandering of the transfer belt Fluctuating deviation in the primary-scanning direction caused by meandering of the transfer belt e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 8...
Page 297: Electric Circuit Description
Low level TBMCK Reference clock TBMEN Enable signal TBMDIR Rotation direction signal TBMRST Reset signal Normal operation Reset * CW: Clockwise rotation, CCW: Counter clockwise rotation viewing from the axis May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 9...
Page 298: 1St Transfer Roller Cam Motor Control Circuit
ASIC Motor driver TBLTM1B-1C TBLTM1B-1A Fig. 13-4 Control signal Signal ASIC output Motor driver output Motor status TBLTM1A-0C TBLTM1B-1C TBLTM1A-0A TBLTM1B-1A OFF (high impedance) Stop Rotation Unused Brake e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 10...
Page 299: Disassembly And Replacement
Fig. 13-5 Rotate the lever (sky blue) counterclockwise and pull it to the front to take it off. Lever ( sky blue ) Transfer belt cleaning unit Fig. 13-6 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 11...
Page 300 (B) of the main frame all the way in. Transfer belt cleaning unit Fig. 13-8 5. Rotate the lever (sky blue) clockwise to lift it up until it clicks. e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 12...
Page 301 2. After the blade seals have been attached, be sure that no gap is left between the blade seals and the edge of the transfer belt cleaning blade. Transfer belt cleaning blade Fig. 13-10 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 13...
Page 302 Open the 2nd transfer unit and ADU. Open the middle guide by holding its knob. Note: Do not hold the middle guide itself when opening and closing it. Disconnect the 1 connector. Connector Fig. 13-12 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 14...
Page 303 5. Store the front handle, and then push the holder all the way in until it comes to a Fig. 13-15 stop. 6. When the unit has been securely inserted, close the middle guide. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 15...
Page 304 Fig. 13-17 Push the stopper while pushing the arm of the tension roller, and then release the ten- sion of the transfer belt. Stoper Fig. 13-18 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 16...
Page 305 Front bracket Handle Fig. 13-19 Remove 2 screws, and then take off the rear bracket. Rear bracket Fig. 13-20 Fold the frame with its rear side up. Frame Fig. 13-21 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 17...
Page 306 P.13-16 "[B-2] Transfer belt" Remove 1 E-ring, 1 bearing on the front side of the drive roller. Bearing Fig. 13-23 Take off the drive roller. Drive roller Fig. 13-24 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 18...
Page 307 1 mm or less (by slightly pushing it to the 2 edges of the drive roller cleaning blade in the direction of the arrow). Drive roller cleaning mylar Fig. 13-27 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 19...
Page 308 Note: Be sure not to damage the earth plate of 2nd transfer facing roller rear holder. 2nd transfer facing roller Bearing 2nd transfer facing roller front holder Fig. 13-30 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 20...
Page 309 Remove the E-rings and springs of both front Tension roller arm Tension roller arm and rear tension roller arms. Then take off the tension roller arms. Spring Spring Fig. 13-33 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 21...
Page 310 Remove 3 E-rings, and then slide the 3 bush- ings of the cam shaft. Bushing Bushing Fig. 13-35 Remove 2 screws, and then take off the TBU brush bracket. TBU brush bracket Fig. 13-36 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 22...
Page 311 Release the 1 latch and take off the 3 gears. Gear Gear Gear Fig. 13-38 Remove 2 screws, and then take off the 1st transfer roller cam motor. 1st transfer roller cam motor Fig. 13-39 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 23...
Page 312 P.16-13 "[A] ADU maintenance position" Take off the right front hinge cover. P.2-33 "[N] Right front hinge cover" Connector cover Remove 1 screw and take off the connector cover. Fig. 13-42 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 24...
Page 313 2nd transfer unit hinge stay Fig. 13-44 Lift up the 2nd transfer unit slightly, and then take it off by sliding it to the front side. 2nd transfer unit Fig. 13-45 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 25...
Page 314 Paper clinging detection sensor (S27) Take off the TRU cover. P.13-26 "[C-3] TRU cover" Remove 1 screw, and then disconnect the connector to take off the sensor bracket. Connector Sensor bracket Fig. 13-48 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 26...
Page 315 Disconnect the connector of paper clinging detection sensor, and release the harness out of 2 hooks. Hook Connector Fig. 13-50 Remove 2 screws and take off the resistor. Resistor Fig. 13-51 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 27...
Page 316 P.10-40 "[Q] Paper dust holder" Disconnect the connector, release the latch 2nd transfer roller and take off the 2nd transfer roller position position detection detection sensor. sensor Connector Fig. 13-54 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 28...
Page 317 Attach the spring to apply tension and tighten the 3 screws. Transfer belt motor unit Fig. 13-56 Remove 2 screws and take off the transfer belt motor. Transfer belt motor Fig. 13-57 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c TRANSFER UNIT 13 - 29...
Page 318 Transfer cover switch P.2-34 "[P] Right inner cover" Release the 2 latches, and then disconnect Latch the connector to take off the transfer cover switch. Latch Connector Fig. 13-58 e-STUDIO2500c/3500c/3510c TRANSFER UNIT May 2006 © TOSHIBA TEC 13 - 30...
Page 319: Image Quality Control
In addition, a shutter operated by the sensor shutter solenoid (SOL2) is equipped on the light receiving/ emitting surfaces to prevent stain to the sensor. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c IMAGE QUALITY CONTROL 14 - 1...
Page 320: Composition
Performs steps [1] to [10] described in chapter 14.4. Image forming process Transfer belt Image quality sensor Laser optical system Light source Reflected light Various image forming amount signal amount signal conditions Fig. 14-1 e-STUDIO2500c/3500c/3510c IMAGE QUALITY CONTROL May 2006 © TOSHIBA TEC 14 - 2...
Page 321: Principle Of The Sensor
Test pattern (toner image) Light emitting Light receiving element element Reflected light amount signal Reflected light amount voltage Light source amount voltage Light source amount signal Fig. 14-2 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c IMAGE QUALITY CONTROL 14 - 3...
Page 322: Flow Chart Of Control Procedure
The image forming conditions are determined and stored in NVRAM. [ 10 ] Control procedure is completed. ( The determined image forming conditions will be reflected on subsequent prints. ) e-STUDIO2500c/3500c/3510c IMAGE QUALITY CONTROL May 2006 © TOSHIBA TEC 14 - 4...
Page 323: Disassembly And Replacement
Take off the image quality control unit P.14-5 "[A] Image quality control unit" Remove 2 screws and take off the image position aligning sensor (front). Image position aligning sensor ( front ) Fig. 14-4 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c IMAGE QUALITY CONTROL 14 - 5...
Page 324 Take off the image quality control unit P.14-5 "[A] Image quality control unit" Remove 2 screws and take off the sensor shutter solenoid. Sensor shutter solenoid Fig. 14-7 e-STUDIO2500c/3500c/3510c IMAGE QUALITY CONTROL May 2006 © TOSHIBA TEC 14 - 6...
Page 325: Fuser Unit / Paper Exit Section
Pressure roller thermostat Side heater lamp Center heater lamp Heat roller Fuser roller Fuser belt Heat roller center thermopile Heat roller rear thermopile Fig. 15-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 1...
Page 326: Composition
Pressure roller center thermistor THM4 Pressure roller rear thermistor THM5 Pressure roller thermostat THMO3 Separation finger PM parts Separation plate Fuser motor Exit sensor Exit roller Exit motor e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 2...
Page 327: Functions
ON the power supply to the heater lamps, and when it is higher than the preset temperature, it cuts off the supply. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 3...
Page 328 This motor drives the fuser unit and the optional bridge unit. 18)Exit motor (M18) This motor drives the exit roller. It rotates reversely to switch back paper when the equipment is in the reverse operation. e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 4...
Page 329: Description Of Operation
(THMO3) is opened to stop the power supply to the pressure roller lamp (LAMP3). When transporting OHP film or thick paper, the transport speed is reduced by 1/2 of the normal one in order to improve fusing efficiency. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 5...
Page 330: Electric Circuit Description
Heater lamp control circuit Pressure roller lamp ASIC converter control signal Overheat detection signal AC line DC line Reset signal Forcible power-off circuit Fig. 15-2 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 6...
Page 331 ON, the equipment is in ready or printing status, each heater lamp is turned ON/OFF alternately to maintain the surface temperature of the fuser belt at a certain level (setting temper- ature of each status). May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 7...
Page 332 Auto Power Save Mode Warming-up Ready During printing Fixed time (08-205) Auto °C Shut Off Mode Fixed time (08-206) Temperature of fuser belt Heater lamp Fig. 15-4 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 8...
Page 333 OFF again. After confirming that it is the fuser unit abnor- mality, correct the abnormality and reset the counter value (08-400) to "0" to start up the equipment normally. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 9...
Page 334 +5.1VB Fuser belt BHSTH rear thermopile IC72 IC41 ASIC converter +5.1VB Pressure roller center thermistor PHCTH +5.1VB Pressure roller rear thermistor PHETH Fig. 15-5 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 10...
Page 335 230°C or above 230°C or above 210°C C468 or above 210°C or above 40°C C446 Fixed time or below (C443) 40°C or below May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 11...
Page 336 210°C C468 or above 210°C or above 40°C C447 or below 40°C or below 40°C or below 40°C C467 or below 40°C or below e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 12...
Page 337 * 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). May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 13...
Page 338: Fuser Motor Control Circuit
* When thick paper or OHP sheet is used, FSMGA signal moves to a low level to reduce the motor speed in half and lower the paper transport speed so that the fusibility of toner is improved. e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC...
Page 339: Exit Motor Control Circuit
EXMEN Enable signal EXMCW Rotation direction signal EXMRST Reset signal Normal operation Reset * CW: Clockwise rotation, CCW: Counter clockwise rotation viewing from the axis May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 15...
Page 340: Fuser Unit Use Status Determining Circuit
Life counters to be cleared at blow-out of the fuser unit fuse are shown below. Pressure roller 08-1250 Pressure roller separation finger 08-1270 Fuser belt 08-1272 Fuser roller 08-1274 Fuser belt guide 08-1276 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 16...
Page 341: Disassembly And Replacement
2. Fix the 2 screws securely with a coin or a flathead screwdriver. 3. Check that they are engaged properly by Handle turning the handle. Fig. 15-10 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 17...
Page 342 P.15-17 "[A-1] Fuser unit" Remove 2 screws (one on the rear side is a shoulder screw) and take off the pressure roller cover. Pressure roller cover Fig. 15-13 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 18...
Page 343 Loosen 2 pressure screws, and then remove 2 springs. Note: Pressure screw When installing, tighten the 2 pressure screws securely until they are no longer moved. Fig. 15-16 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 19...
Page 344 Clamp Separation finger" Release the harness on the front side out of 1 clamp, and then disconnect 1 relay con- nector. Relay connector Fig. 15-19 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 20...
Page 345 Then take Pressure roller lamp Pressure roller off the pressure roller by lifting it up. Bracket Fig. 15-22 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 21...
Page 346 Loosen 2 pressure screws, and then remove 2 springs. Pressure screw Note: When installing, tighten the 2 pressure screws securely until they are no longer moved. Fig. 15-25 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 22...
Page 347 When installing them, pull the harness under the stay. Relay connector Fig. 15-27 Remove 1 screw, and then release the har- ness out of 4 clamps. Clamp Harness Fig. 15-28 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 23...
Page 348 Remove 2 E-rings from the fuser roller. Then remove 2 washers, 2 bushings and 2 bear- Washer ings. Bearing Bearing Bushing Bushing Washer Fuser roller Fig. 15-31 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 24...
Page 349 Be careful not to scratch the fuser belt. Lay the fuser belt on the clean place to prevent the belt from the dust. Fuser roller Fig. 15-34 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 25...
Page 350 Rear side: Release the harness out of the 5 clamps, and then disconnect the 1 relay con- Clamp nector and 1 connector. Connector Relay connector Clamp Fig. 15-37 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 26...
Page 351 Remove 2 screws, and then take off the pressure roller thermostat from its bracket by Harness releasing the harness out of the 2 terminals. Pressure roller thermostat Harness Fig. 15-40 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 27...
Page 352 1.6 - 2.4 mm through the opening. Pressure roller 1.6 - 2.4 mm Pressure roller thermostat ( THMO3 ) e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 28...
Page 353 Remove 2 screws and take off the pressure roller center thermistor. Remove 1 screw and take off the pressure roller rear thermistor. Pressure roller rear Pressure roller thermistor center thermistor Fig. 15-43 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 29...
Page 354 4. Check that the gap between the pressure 1.5 - 2.5 mm roller center thermistor and the pressure roller is 1.5 - 2.5 mm through the opening. Pressure roller Fig. 15-46 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 30...
Page 355 - 2.4 mm while they are being pushed thermostat ( THMO1 ) each other, through the opening. Fuser belt 1.6 - 2.4 mm Fig. 15-49 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 31...
Page 356 ( THMO2 ) mm - 2.4 mm while they are being pushed each other, through the opening. Fuser belt 1.6~2.4 mm Fig. 15-52 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 32...
Page 357 Fuser belt front thermistor bracket Fig. 15-54 Remove 1 screw and take off the fuser belt front thermistor. Fuser belt front thermistor Fig. 15-55 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 33...
Page 358 P.15-17 "[A-1] Fuser unit" Open the jam access cover. Jam access cover Fig. 15-57 Remove 3 screws and take off the cover (A). Cover (A) Fig. 15-58 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 34...
Page 359 Remove 1 screw and bracket. Disconnect 1 connector and take off the exit Exit sensor Bracket sensor. Connector Fig. 15-59 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 35...
Page 360 Thermopile bracket Fig. 15-61 Remove 1 screw of each thermopile. Then take off the thermopiles from their brackets Cover Thermopile and covers. Bracket Fig. 15-62 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 36...
Page 361 When installing the exit flame, hook the flame of the exit flame onto the 2 hooks of the exit duct base. Exit duct base Fig. 15-65 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 37...
Page 362 Slide the 4 lower exit rollers to sepa- Exit flame rate it from the 2 shafts. Lower exit roller Shaft Shaft Lower exit roller Lower exit roller Fig. 15-68 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 38...
Page 363 Release the harness out of the clamp, and then disconnect the 2 connectors. Remove 2 screws and take off the exit sec- tion drive unit. Relay connector Fig. 15-71 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION 15 - 39...
Page 364 • Replace the rexit motor with the bracket installed. • Never attempt to loosen 2 screws fixing Belt exit motor. Pully Exit motor Fig. 15-73 e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION May 2006 © TOSHIBA TEC 15 - 40...
Page 365: Automatic Duplexing Unit (Adu)
Upper transport roller Entrance guide ADU motor ADU entrance sensor Paper guide ADU clutch Middle transport roller ADU exit sensor Exit guide Lower transport roller Fig. 16-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 1...
Page 366: Composition
M22:Stepping motor ADU clutch CLT7 ADU entrance sensor ADU exit sensor ADU opening/closing switch ADU driving PC board Upper transport roller Middle transport roller Lower transport roller e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 2...
Page 367: Functions
This switch detects whether the ADU is open or not. 6) Upper transport roller / Middle transport roller / Lower transport roller This roller transports paper into the ADU. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 3...
Page 368: Drive Of Adu
The ADU clutch (CLT7) is then turned ON and the middle transport roller and lower transport roller are rotated. ADU motor Upper transport roller ADU clutch Middle transport roller Lower transport roller Fig. 16-2 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 4...
Page 369: Description Of Operations
The operation of the duplex printing differs depending on the size of the paper; single-paper circulation and alternateness circulation. The figures in the following pages show the circulating operations during duplex copying. The numbers in the figures indicate the page numbers. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 5...
Page 370 1) Single-paper circulation With the paper larger than A4/LT size, duplex printing (back-side printing→front-side printing) is per- formed for one sheet at a time as shown below. Fig. 16-3 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 6...
Page 371 With A4/LT size paper or smaller, duplex printing is performed for two sheets at a time as shown below. Back side of the 1st sheet→Back side of the 2nd sheet→Front side of the 1st sheet→Front side of the 2nd sheet Fig. 16-4 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 7...
Page 372 Front side of the 3rd sheet (5) → Back side of the 5th sheet (10) → Front side of the 4th sheet (7) → Front side of the 5th sheet (9) Fig. 16-5 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 8...
Page 373 Timing chart for duplex copying from 1st drawer (A4, 3 sheets) Fig. 16-6 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 9...
Page 374 Timing chart for duplex copying from 1st drawer (A3, 1 sheet) Fig. 16-7 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 10...
Page 375: Flow Chart
OFF the ADU exit sensor? ADU motor stopped ADU motor ON ADU clutch ON ADU exit sensor check the arrival? ADU transport jam (E520) Specified time has passed May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 11...
Page 376 ADU feeding operation started Registration sensor ON? ADU misfeeding (E110) Registration proceeded Registration operation completed ADU motor stopped ADU clutch OFF Next paper is ready for the registration e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 12...
Page 377: Disassembly And Replacement
When installing, match the front and rear hinge holes of the equipment and the right Hole Boss and left hinge bosses of the ADU. Automatic duplexing unit Fig. 16-9 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 13...
Page 378 When installing the ADU, match the front and Automatic rear hinge bosses of the equipment and the duplexing unit hinge holes of the ADU. Hole Boss Boss Hole Fig. 16-12 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 14...
Page 379 P.16-15 "[C] ADU inside rear cover" Disconnect 6 connectors from the ADU board. Release 3 lock supports and take off the ADU board. Lock support Fig. 16-15 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 15...
Page 380 When installing the E-ring, make sure that ADU clutch protection the latches of both ends of E-ring are on the flat part of the shaft. Fig. 16-18 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 16...
Page 381 2 harness clamps. Remove 2 ADU drive unit screws and take off the ADU drive unit. Note: Be sure not to lose the belt. Fig. 16-21 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 17...
Page 382 Take off the ADU drive unit. P.16-17 "[I] ADU drive unit / ADU motor (M22)" Remove 1 E-ring on the rear side. Then take off 1 pulley. Pulley E-ring Fig. 16-24 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 18...
Page 383 Remove 1 E-ring, 1 clip and 1 bushing on the rear side. Middle transport roller E-ring Take off 1 bushing on the front side. Then take off the middle transport roller. Clip Bushing Bushing Fig. 16-27 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 19...
Page 384 Take off the ADU cover. ADU entrance sensor P.16-16 "[F] ADU cover" Disconnect 1 connector. Release the latches and take off the ADU entrance sensor. Fig. 16-30 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 20...
Page 385 [P] ADU upper cover assembly Open the automatic duplexing unit. Remove 2 screws and take off the ADU ADU upper cover assembly upper cover assembly. Fig. 16-33 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) 16 - 21...
Page 386 Remove 1 E-ring, and take off the shaft and switch guide. Switch guide Shaft Fig. 16-35 Release the latch, and then take off the Cover interlock switch. Cover interlock switch Fig. 16-36 e-STUDIO2500c/3500c/3510c AUTOMATIC DUPLEXING UNIT (ADU) May 2006 © TOSHIBA TEC 16 - 22...
Page 387: Power Supply Unit
TRC (Triac) is driven by the heater control signal (BHCON, BHSON, PHON) from the LGC board and then AC power is supplied to each heater lamp (center heater lamp, side heater lamp, pressure roller lamp) in the fuser unit. May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c POWER SUPPLY UNIT 17 - 1...
Page 388: Operation Of Dc Output Circuits
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-STUDIO2500c/3500c/3510c POWER SUPPLY UNIT May 2006 © TOSHIBA TEC 17 - 2...
Page 389: Output Channel
Output to the SYS board +12VB: CN402 Pin 3 Output to the SYS board +12VB: CN403 Pin 9 Output to the LGC board +12VB: CN408 Pin 1 Output to the FAX unit May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c POWER SUPPLY UNIT 17 - 3...
Page 390 CN404 For the SLG board, RADF +24VD4 CN406 For the finisher +24VD4 CN410 For the switching regulator cooling fan-1 +24VD CN411 For the switching regulator cooling fan-2 +24VD e-STUDIO2500c/3500c/3510c POWER SUPPLY UNIT May 2006 © TOSHIBA TEC 17 - 4...
Page 391: Fuse
ERS-K High-voltage transformer Bridge unit Key copy counter, copy key card, coin controller +24VD4 SLG board Scan motor F204: 6.3 A (Semi time-lag) Lamp inverter board RADF Finisher May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c POWER SUPPLY UNIT 17 - 5...
Page 392: Configuration Of Power Supply Unit
17.5 Configuration of Power Supply Unit Noise filter Noise filter CN410 CN409 Fig. 17-1 e-STUDIO2500c/3500c/3510c POWER SUPPLY UNIT May 2006 © TOSHIBA TEC 17 - 6...
Page 393: Sequence Of Power Supply
+4.95V (R.V. +5.1V) +4.95V (R.V. +5.1V) +4.95V (R.V. +5.1V) +11.4V (R.V. +12V) +11.4V (R.V. +12V) +11.4V (R.V. +12V) +21.6V (R.V. +24V) +21.6V (R.V. +24V) +21.6V (R.V. +24V) Fig. 17-2 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c POWER SUPPLY UNIT 17 - 7...
Page 394: Ac Wire Harness
17.7 AC Wire Harness Black Black J704 J703 White White AC (N) J706 J705 Black Black AC (L) Black White AC (N) +5.1VB Yellow Black Black AC (L) Breaker Fig. 17-3 e-STUDIO2500c/3500c/3510c POWER SUPPLY UNIT May 2006 © TOSHIBA TEC 17 - 8...
Page 395: Pc Boards
18. PC BOARDS 1) PWA-F-SYS Fig. 18-1 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PC BOARDS 18 - 1...
Page 396 2) PWA-F-IMG Fig. 18-2 3) PWA-F-LGC Fig. 18-3 e-STUDIO2500c/3500c/3510c PC BOARDS May 2006 © TOSHIBA TEC 18 - 2...
Page 397 4) PWA-F-JSP Fig. 18-4 5) PWA-F-USB Fig. 18-5 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PC BOARDS 18 - 3...
Page 398 6) PWA-F-CCD Fig. 18-6 7) PWA-F-SLG Fig. 18-7 e-STUDIO2500c/3500c/3510c PC BOARDS May 2006 © TOSHIBA TEC 18 - 4...
Page 399 8) PWA-F-DSP Fig. 18-8 9) PWA-F-KEY Fig. 18-9 10)PWA-F-ADU Fig. 18-10 May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c PC BOARDS 18 - 5...
Page 400 11)PWA-F-EPU Fig. 18-11 12)PWA-F-FIL Fig. 18-12 e-STUDIO2500c/3500c/3510c PC BOARDS May 2006 © TOSHIBA TEC 18 - 6...

This manual is also suitable for:

E-studio3500c E-studio3510c

Toshiba e-STUDIO2500c Service Manual

1 Specifications/Accessories/Options/Supplies

2 Outline of the Machine

3 Copy Process

4 General Operation

5 Control Panel

6 Scanner

7 Image Processing

8 Laser Optical Unit

9 Drive System

10 Paper Feeding System

11 Process Unit Related Section

12 Developer Unit

13 Transfer Unit

14 Image Quality Control

15 Fuser Unit / Paper Exit Section

16 Automatic Duplexing Unit (Adu)

17 Power Supply Unit

18 Pc Boards

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SERVICE MANUAL

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