Toshiba e-STUDIO 2006 e-STUDIO 2306 e-STUDIO 2506 e-STUDIO 2007 e-STUDIO 2307 e-STUDIO 2507 e-STUDIO 2303A e-STUDIO 2303AM e-STUDIO 2803AM e-STUDIO 2309A e-STUDIO 2809A Service Manual

Service Manual Toshiba e-STUDIO 2006 e-STUDIO 2306 e-STUDIO 2506 e-STUDIO 2007 e-STUDIO 2307 e-STUDIO 2507 e-STUDIO 2303A e-STUDIO 2303AM e-STUDIO 2803AM e-STUDIO 2309A e-STUDIO 2809A;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Toshiba e-STUDIO copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of Toshiba e-STUDIO 2006 e-STUDIO 2306 e-STUDIO 2506 e-STUDIO 2007 e-STUDIO 2307 e-STUDIO 2507 e-STUDIO 2303A e-STUDIO 2303AM e-STUDIO 2803AM e-STUDIO 2309A e-STUDIO 2809A photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:

1. FEATURES
1.1 Main Feature of 20L/23L/25L
1.2 Main Feature of 20H/23H/25H
1.3 Main Feature of 23LA/23LM/28LM/23HA/28HA

2. SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES
2.1 Specifications
2.1.1 General
2.1.2 Copy
2.1.3 Print
2.1.4 Scan
2.2 Accessories
2.3 Options
2.4 System List
2.4.1 <20L/23L/25L>
2.4.2 <20H/23H/25H>
2.4.3 <23LA/23LM/28LM>
2.4.4 <23HA/28HA>
2.5 Supplies

3. OUTLINE OF THE MACHINE
3.1 Sectional View
3.2 Electric Parts Layout
3.3 Symbols and Functions of Various Components
3.3.1 Motors
3.3.2 Sensors and switches
3.3.3 Electromagnetic clutches
3.3.4 PC boards
3.3.5 Lamps and heaters
3.3.6 Thermistors and thermostats
3.3.7 Others
3.4 Copy Process
3.4.1 General Description of Copying Process
3.5 Comparison with e-STUDIO195 series
3.6 General Operation
3.6.1 Overview of Operation
3.6.2 Description of Operation
3.6.3 Detection of Abnormality
3.7 Control Panel
3.7.1 General Description
3.7.2 Items shown on the display panel
3.8 Scanner
3.8.1 General Description
3.8.2 Composition
3.8.3 Functions
3.8.4 Description of Operation
3.9 Laser Optical Unit
3.9.1 General Description
3.9.2 Laser precautions
3.10 Drive System
3.10.1 General Description
3.10.2 Composition
3.10.3 Functions
3.11 Paper Feeding System
3.11.1 General Descriptions
3.11.2 Composition
3.11.3 Functions
3.11.4 Operation
3.12 Drum Related Section
3.12.1 Configuration
3.12.2 Composition
3.12.3 Functions
3.13 Development System
3.13.1 Configuration
3.13.2 Composition
3.13.3 Functions
3.14 Fuser / Exit Unit
3.14.1 General Description
3.14.2 Composition
3.14.3 Functions
3.14.4 Operation
3.14.5 Heater Control Circuit
3.15 Automatic Duplexing Unit
3.15.1 General Description
3.15.2 Composition
3.15.3 Drive of ADU
3.15.4 Functions
3.15.5 Description of Operations
3.16 Power Supply Unit
3.16.1 Composition
3.16.2 Operation of DC Output Circuits
3.16.3 Output Channel

4. DISASSEMBLY AND REPLACEMENT
4.1 Disassembly and Replacement of Covers
4.1.1 Left cover <20L/23L/25L/20H/23H/25H>
4.1.2 Left cover <23LA/23LM/28LM/23HA/28HA>
4.1.3 Inner tray
4.1.4 Right front cover
4.1.5 Left front cover
4.1.6 Toner supply cover
4.1.7 Tray front cover
4.1.8 Tray rear cover
4.1.9 Rear cover <20L/23L/25L/20H/23H/25H>
4.1.10 Rear cover <23LA/23LM/28LM/23HA/28HA>
4.1.11 Right rear cover
4.1.12 Right lower cover
4.1.13 Right cover
4.1.14 Top cover
4.2 Control Panel
4.2.1 Control panel unit
4.2.2 Control panel PC board (HPNL)
4.2.3 LED panel
4.2.4 USB cable <20L/23L/25L/20H/23H/25H>
4.2.5 USB cable <23LA/23LM/28LM/23HA/28HA>
4.3 Scanner
4.3.1 Original glass
4.3.2 Contact Image Sensor unit (CIS)
4.3.3 CIS case
4.3.4 CIS case <23LA/23LM/28LM/23HA/28HA>
4.3.5 Scan motor (M1) <20L/23L/25L/20H/23H/25H>
4.3.6 Scan motor (M1) <23LA/23LM/28LM/23HA/28HA>
4.3.7 Platen sensor (S7) <20H/23H/25H, 23HA/28HA only>
4.3.8 Automatic original detection sensor-1 (S9) / Automatic original detection sensor-2 (S10) <20H/23H/25H, 23HA/28HA only>
4.4 Laser Optical Unit
4.4.1 Laser optical unit
4.5 Drive System
4.5.1 Main motor (M3)
4.5.2 Toner motor (M2)
4.5.3 Paper eject unit
4.5.4 Upper drive unit
4.5.5 Lower drive unit
4.6 Paper Feeding System
4.6.1 Bypass unit
4.6.2 Bypass feed clutch (CLT3)
4.6.3 Duct unit
4.6.4 Lower bypass feed guide
4.6.5 Bypass feed roller <20L/23L/25L/20H/23H/25H>
4.6.6 Bypass feed roller <23LA/23LM/28LM/23HA/28HA>
4.6.7 Bypass separation pad <20L/23L/25L/20H/23H/25H>
4.6.8 Bypass paper sensor (S6)
4.6.9 Drawer feed roller <20L/23L/25L/20H/23H/25H>
4.6.10 Drawer feed roller <23LA/23LM/28LM/23HA/28HA>
4.6.11 Drawer separation pad
4.6.12 Drawer feed clutch (CLT2)
4.6.13 Registration roller clutch (CLT1)
4.6.14 Registration roller (metal)
4.6.15 Registration roller (rubber)
4.6.16 Registration sensor (S2)
4.6.17 Paper empty sensor (S5)
4.7 Process Related Section
4.7.1 Process unit <20L/23L/25L/20H/23H/25H>
4.7.2 Process unit <23LA/23LM/28LM/23HA/28HA>
4.7.3 Drum cleaner unit
4.7.4 Drum
4.7.5 Drum cleaning blade
4.7.6 Recovery Blade
4.7.7 Drum separation finger
4.7.8 Main charger
4.7.9 Main charger grid
4.7.10 Main charger cleaner
4.7.11 Needle electrode
4.7.12 Transfer roller
4.7.13 Separation needle
4.7.14 Ozone filter
4.7.15 Suction fun (M5)
4.7.16 Temperature/humidity sensor (S1) <20L/23L/25L/20H/23H/25H>
4.7.17 Temperature/humidity sensor (S1) <23LA/23LM/28LM/23HA/28HA>
4.7.18 Developer unit
4.7.19 Removing developer material
4.7.20 Filling developer unit with developer material
4.7.21 Auto-toner sensor (S4)
4.7.22 Doctor blade <20L/23L/25L/20H/23H/25H>
4.7.23 Doctor blade <23LA/23LM/28LM/23HA/28HA>
4.7.24 Mixer <20L/23L/25L/20H/23H/25H>
4.7.25 Mixer <23LA/23LM/28LM/23HA/28HA>
4.7.26 Replacement of oil seal <20L/23L/25L/20H/23H/25H>
4.7.27 Oil seal (front side) <23LA/23LM/28LM/23HA/28HA>
4.7.28 Developer sleeve <20L/23L/25L/20H/23H/25H>
4.7.29 Developer sleeve <23LA/23LM/28LM/23HA/28HA>
4.7.30 Toner cartridge interface PC board (CTIF)
4.8 Fuser/Exit Unit <20L/23L/25L/20H/23H/25H>
4.8.1 Fuser unit
4.8.2 Fuser unit cover/Fuser unit guide
4.8.3 Center heater lamp (LAMP1)
4.8.4 Side heater lamp (LAMP2)
4.8.5 Base unit
4.8.6 Separation finger
4.8.7 Pressure roller
4.8.8 Fuser roller/Fuser roller bushing
4.8.9 Fuser center thermostat (THMO1) / Fuser front thermostat (THMO2)
4.8.10 Center thermistor (THMS1) / Side thermistor (THMS2) / Edge thermistor (THMS3)
4.8.11 Exit sensor (S3)
4.8.12 Exit roller
4.9 Fuser/Exit Unit <23LA/23LM/28LM/23HA/28HA>
4.9.1 Fuser unit
4.9.2 Exit sensor (S3)
4.9.3 Fuser unit cover/Fuser unit guide
4.9.4 Center heater lamp (LAMP1)
4.9.5 Side heater lamp (LAMP2)
4.9.6 Base unit
4.9.7 Pressure roller
4.9.8 Separation finger
4.9.9 Fuser roller/Fuser roller bushing
4.9.10 Fuser center thermostat (THMO1) / Fuser front thermostat (THMO2)
4.9.11 Center thermistor (THMS1) / Side thermistor (THMS2) / Edge thermistor (THMS3)
4.9.12 Exit roller
4.10 Automatic duplexing unit (ADU): Option <20L/23L/25L/20H/23H/25H>
4.10.1 Automatic duplexing unit (ADU)
4.10.2 ADU sensor (S8)
4.10.3 Fuser guide unit
4.10.4 Paper exit motor (M6)
4.10.5 ADU clutch (CLT4)
4.10.6 ADU fan duct unit
4.10.7 ADU lower transport roller
4.10.8 ADU upper transport roller
4.10.9 ADU transport roller
4.11 Automatic duplexing unit (ADU): <23LA/23LM/28LM/23HA/28HA>
4.11.1 Automatic duplexing unit (ADU)
4.11.2 ADU sensor (S8)
4.11.3 Fuser guide unit
4.11.4 Paper exit motor (M6)
4.11.5 ADU clutch (CLT4)
4.11.6 ADU fan duct unit
4.11.7 ADU lower transport roller
4.11.8 ADU upper transport roller
4.11.9 ADU transport roller
4.12 Installation and Replacement of Options <20L/23L/25L/20H/23H/25H>
4.12.1 Reversing Auto Document Feeder (RADF)
4.12.2 Paper feed unit (PFU)
4.13 Installation and Replacement of Options <23LA/23LM/28LM/23HA/28HA>
4.13.1 Reversing Auto Document Feeder (RADF)
4.13.2 Paper feed unit (PFU)

5. SELF-DIAGNOSIS MODES
5.1 Overview
5.2 Input Check (Test Mode 03)
5.3 Output Check (Test Mode 03)
5.4 Test Print Mode (Test Mode 04)
5.5 Operation Procedure in Adjustment Mode (05)
5.6 Test print pattern in Adjustment Mode (05)
5.7 Operation Procedure in Setting Mode (08)
5.8 Assist Mode (3C)
5.8.1 Functions
5.8.2 Operating Procedure of Assist Mode
5.9 List Print Mode (9S)
5.9.1 Operation procedure
5.9.2 List printing
5.10 Flash Memory Clear Mode (6C)
5.10.1 General description
5.10.2 Operation procedure
5.10.3 Functions
5.11 Flash Memory Backup/Restore Mode (59)
5.11.1 General description
5.11.2 Backup files
5.11.3 Backup procedure
5.11.4 Restore procedure
5.12 PM support mode related code
5.12.1 Setting
5.12.2 Restrictions for the PM counter-related self-diagnosis codes

6. SETTING / ADJUSTMENT
6.1 Adjustment Order
6.2 Adjustment of Auto-Toner Sensor
6.3 Image Dimensional Adjustment
6.3.1 General description
6.3.2 Light volume adjustment of scanner LED
6.3.3 Paper alignment at the registration roller
6.3.4 Printer related adjustment
6.3.5 Scanner related adjustment
6.4 Image Quality Adjustment (Copying Function)
6.4.1 Automatic gamma adjustment
6.4.2 Density adjustment
6.4.3 Background adjustment
6.4.4 Sharpness adjustment
6.4.5 Gamma balance adjustment
6.4.6 Adjustment of image density
6.4.7 Background offsetting adjustment for RADF
6.5 Image Quality Adjustment (Printing Function)
6.5.1 Adjustment of image density
6.5.2 Gamma balance adjustment <20H/23H/25H, 23HA/28HA>
6.6 Image Quality Adjustment (Scanning Function)
6.6.1 Gamma balance adjustment
6.6.2 Density adjustment
6.6.3 Sharpness adjustment
6.6.4 Background adjustment
6.6.5 Fine adjustment of black density
6.6.6 RGB conversion method selection
6.6.7 Adjustment of saturation
6.6.8 Background processing offset adjustment
6.7 Adjustment of the Scanner Section
6.7.1 CIS unit
6.7.2 Adjustment of Start Timing for Original Detection <23HA/28HA only>
6.8 Adjustment of the Paper Feeding System
6.8.1 Sheet sideways deviation caused by paper feeding
6.9 Adjustment of Developer Unit <23LA/23LM/28LM/23HA/28HA>
6.9.1 Doctor-to-sleeve gap
6.10 Adjustment of the RADF
6.10.1 Tray volume adjustment
6.10.2 Adjustment of Skew
6.10.3 Adjustment of the leading edge position
6.10.4 Adjustment of horizontal position
6.10.5 Adjustment of copy ratio

7. PREVENTIVE MAINTENANCE (PM)
7.1 General Description
7.2 PM Support Mode (6S)
7.2.1 General description
7.2.2 Operational flow and operational screen
7.3 EPU Mode ([FUNCTION CLEAR] + [START] Buttons) <23LA/23LM/28LM/23HA/28HA Only>
7.3.1 General description
7.3.2 Operational flow
7.3.3 Counters to be cleared
7.4 Preventive Maintenance Checklist
7.4.1 Scanner
7.4.2 Feed unit
7.4.3 Bypass feed unit
7.4.4 Main charger
7.4.5 Transfer / Separation charger
7.4.6 Drum/Cleaner related section
7.4.7 Developer unit / Toner cartridge related section
7.4.8 Fuser/Paper exit unit
7.4.9 Automatic duplexing unit
7.4.10 RADF
7.4.11 PFU
7.4.12 PFP
7.5 PM KIT
7.6 Maintenance Part List
7.7 Grease List
7.8 Precautions for Storing and Handling Supplies
7.8.1 Precautions for storing TOSHIBA supplies
7.8.2 Checking and cleaning of photoconductive drum
7.8.3 Checking and cleaning of drum cleaning blade
7.8.4 Checking and cleaning of fuser roller and pressure roller
7.8.5 Checking and replacing the transfer roller
7.9 Operational Items in Machine Refreshing

8. ERROR CODE AND TROUBLESHOOTING
8.1 General Descriptions
8.1.1 If a problem continues even after performing all troubleshooting
8.1.2 Collection of debug logs with a USB device
8.1.3 Traceability label
8.2 Error Code List
8.2.1 Jam
8.2.2 Service call
8.2.3 Error in E-mail / Scanning Function
8.2.4 Error history
8.3 Diagnosis and Prescription for Each Error Code
8.3.1 Check item
8.3.2 Paper exit jam
8.3.3 Paper transport jam
8.3.4 Paper misfeeding
8.3.5 Cover open jam
8.3.6 Other jam
8.3.7 RADF jam
8.3.8 Drive system related service call
8.3.9 Paper feeding system related service call
8.3.10 Scanning system related service call
8.3.11 Process related service call
8.3.12 Laser optical unit related service call
8.3.13 Fuser unit related service call
8.3.14 Circuit related service call
8.3.15 Communication related service call
8.3.16 Other service call
8.3.17 Error in E-mail / Scanning Function
8.4 Troubleshooting for the Image
8.4.1 Abnormality of image density / Gray balance
8.4.2 Background fogging
8.4.3 Moire/lack of sharpness
8.4.4 Toner offset
8.4.5 Blurred image
8.4.6 Poor fusing
8.4.7 Blank copy
8.4.8 Solid copy
8.4.9 White banding or white void (in the feeding direction)
8.4.10 White banding (at right angle with the feeding direction)
8.4.11 Skew (inclined image)
8.4.12 Black banding (in the feeding direction)
8.4.13 Black banding (at right angle with the feeding direction)
8.4.14 White spots
8.4.15 Poor image transfer
8.4.16 Uneven image density
8.4.17 Faded image (low density, abnormal gray balance)
8.4.18 Image dislocation in feeding direction
8.4.19 Jittering image
8.4.20 Poor cleaning
8.4.21 Uneven light distribution
8.4.22 Blotched image
8.4.23 Black streaks on image leading edge during scanning
8.5 Other Errors
8.5.1 When “SET FUSER UNIT” is displayed
8.5.2 Countermeasure to “BIOS MODE” displayed on Control Panel
8.5.3 Precautions for image missing width on the paper trailing edge at enlargement copying
8.5.4 Precautions for incorrect Operation of Automatic Original Size Detection <20H/23H/25H, 23HA/28HA>
8.5.5 When the error code “F014” is displayed <23HA only>
8.5.6 When “FAX Error” is displayed

9. REPLACEMENT OF PC BOARDS
9.1 Disassembly and Replacement of PC Boards <20L/23L/25L/20H/23H/25H>
9.1.1 Main board (MAIN)
9.1.2 LVPS
9.1.3 HVPS
9.2 Disassembly and Replacement of PC Boards <23LA/23LM/28LM/23HA/28HA>
9.2.1 Main board (MAIN)
9.2.2 LVPS
9.2.3 HVPS
9.3 Precautions, Procedures and Settings for Replacing MAIN Board
9.4 Precautions, Procedures and Settings for Replacing the Flash Memory

10. REMOTE SERVICE <20H/23H/25H, 23HA/28HA>
10.1 Service Notification
10.1.1 Outline
10.1.2 Setting
10.1.3 Items to be notified
10.2 Supply Notice
10.2.1 Outline
10.2.2 Setting

11. FIRMWARE UPDATING
11.1 General Description
11.2 Firmware Updating with USB Device
11.3 Firmware Updating with PC Update Tool
11.3.1 General description
11.3.2 System requirements
11.3.3 Preparation
11.3.4 Update procedure
11.3.5 When firmware updating fails
11.4 Firmware Updating with BIOS Mode
11.4.1 General description
11.4.2 System requirements
11.4.3 Preparation
11.4.4 Update procedure
11.4.5 When firmware updating fails
11.5 Confirmation of the updated data

12. EXTERNAL COUNTERS
12.1 Outline
12.2 Signal
12.2.1 Pin Layout <20L/23L/25L/20H/23H/25H>
12.2.2 Pin Layout <23LA/23LM/28LM/23HA/28HA>
12.2.3 Details of the signals
12.3 Notices
12.3.1 Setting code
12.3.2 Setting value change and restrictions when using the coin controller
12.3.3 Installation of External Counter
12.3.4 Restrictions when installing the coin controller

13. WIRE HARNESS CONNECTION DIAGRAMS
13.1 AC Wire Harness <20L/23L/25L/20H/23H/25H>
13.2 AC Wire Harness <23LA/23LM/28LM/23HA/28HA>
13.3 DC Wire Harness <20L/23L/25L>
13.4 Electric Parts Layout <20L/23L/25L>
13.5 DC Wire Harness <20H/23H/25H>
13.6 Electric Parts Layout <20H/23H/25H>
13.7 DC Wire Harness <23LA/23LM/28LM>
13.8 Electric Parts Layout <23LA/23LM/28LM>
13.9 DC Wire Harness <23HA/28HA>
13.10 Electric Parts Layout <23HA/28HA>

14. SELF-DIAGNOSIS CODE (03/04/05/08 CODE)
14.1 03/04/05/08 CODE <20L/23L/25L/20H/23H/25H>
14.1 Input check (test mode 03)
14.1 Output check (test mode 03)
14.1 Test print mode (test mode 04)
14.1 Adjustment Mode (05) Codes
14.1 Setting Mode (08) Codes
14.2 03/04/05/08 CODE <23LA/23LM/28LM/23HA/28HA>
14.2 Input check (test mode 03)
14.2 Output check (test mode 03)
14.2 Test print mode (test mode 04)
14.2 Adjustment Mode (05) Codes
14.2 Setting Mode (08) Codes

APPENDIX
Maintenance Check List <20L/23L/25L/20H/23H/25H>
Maintenance Check List <23LA/23LM/28LM/23HA/28HA>
REVISION RECORD