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Toshiba e-STUDIO 281c, e-STUDIO 351c, e-STUDIO 451c, Full - Service Manual, Service Handbook, Parts List
This service manual, is the full Repair Manual.
This manual, Toshiba e-STUDIO 281c, e-STUDIO 351c, e-STUDIO 451c, is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your copier.
You can print, zoom or read any diagram, picture or page from this full 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 281c, e-STUDIO 351c, e-STUDIO 451c photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:
Contents for SERVICE MANUAL:
1. SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES
1.1 Specifications
1.2 Accessories
1.3 Options
1.4 Supplies
1.5 System List
2. OUTLINE OF THE MACHINE
2.1 Sectional View
2.2 Electric Parts Layout
2.3 Symbols and Functions of Various Components
2.4 General Description
2.4.1 System block diagram
2.4.2 Construction of boards
2.5 Disassembly and Replacement of Covers
2.6 Disassembly and Replacement of PC boards/HDD
2.7 Removal and Installation of Options
3. COPY PROCESS
3.1 Expression of Colors and 4-Step Copy Process
3.2 General Description of Copying Process
3.3 Details of Copying Process
3.4 List of Copying Process Conditions
4. GENERAL OPERATION
4.1 Overview of Operation
4.2 Description of Operation
4.2.1 Warming-up
4.2.2 Ready (ready for copying)
4.2.3 Drawer feed copying (Upper drawer paper feeding)
4.2.4 Bypass feed copying
4.2.5 Interruption copying
4.3 Detection of Abnormality
4.3.1 Types of abnormality
4.3.2 Description of abnormality
4.4 Flow Chart
4.4.1 Power ON to ready
4.4.2 Automatic feed copying
5. CONTROL PANEL
5.1 General Description
5.2 Items Shown on the Display Panel
5.2.1 Display
5.2.2 Message
5.3 Relation between the Equipment State and Operator�s Operation
5.4 Description of Operation
5.4.1 Dot matrix LCD circuit
5.4.2 LED display circuit
5.5 Disassembly and Replacement
6. SCANNER
6.1 General Description
6.2 Construction
6.3 Functions
6.4 Description of Operation
6.4.1 Scan motor (M1)
6.4.2 Scanning drive circuit
6.4.3 Initialization at power-ON
6.5 Control of Exposure Lamp (EXP)
6.5.1 General description
6.5.2 Exposure lamp (EXP)
6.5.3 Control circuit for the exposure lamp
6.6 General Description of CCD Control
6.6.1 Opto-electronic conversion
6.6.2 Shading correction
6.7 Automatic Original Size Detection Circuit
6.7.1 Principle of original size detection
6.7.2 Process of detection of original size
6.8 Disassembly and Replacement
7. IMAGE PROCESSING
7.1 General Description
7.2 Construction
7.3 SYSTEM CONTROL PC BOARD (SYS)
7.3.1 Features
7.3.2 Functions of image processing circuit
7.4 LOGIC PC BOARD (LGC)
7.4.1 Features
7.4.2 Functions of image processing circuit
8. LASER OPTICAL UNIT
8.1 General Description
8.2 Structure
8.3 Laser Diode
8.4 Laser Unit Cooling Fan
8.5 Polygonal Motor (M4)
8.6 Laser Driving PC Board (LDR)
8.7 Disassembly and Replacement
9. DRIVE SYSTEM
9.1 General Description
9.2 Main Motor (M6)
9.2.1 Construction
9.2.2 Drive circuit of main motor
9.3 Transport Motor (M9)
9.3.1 Construction
9.3.2 Drive circuit of transport motor
9.4 Developer Motor (M11)
9.4.1 Construction
9.4.2 Drive circuit of developer motor
9.5 Disassembly and Replacement
10. PAPER FEEDING SYSTEM
10.1 General Descriptions
10.2 Construction
10.3 Functions
10.4 Description of Operation
10.4.1 Drive of rollers
10.4.2 Operation of bypass pickup roller
10.4.3 Operation of drawer pickup roller
10.4.4 Separation of paper
10.4.5 General operation
10.5 Drive Circuit of Tray-up Motor
10.6 Disassembly and Replacement
11. DRUM RELATED SECTION
11.1 General Description
11.2 Construction
11.3 Functions
11.4 Output Control Circuits of High-Voltage Transformer
11.5 Drum Temperature Detection Circuit
11.6 Temperature/Humidity Sensor (S19)
11.6.1 General description
11.6.2 Construction
11.7 Charger Wire Cleaner
11.7.1 Operation
11.7.2 Construction
11.7.3 Drive circuit
11.8 Disassembly and Replacement
12. DEVELOPER UNIT
12.1 General Description
12.2 Construction
12.3 Black Toner Cartridge Drive Unit
12.3.1 General descriptions
12.3.2 Toner motor (M3)
12.4 Black Developer Unit
12.4.1 Functions
12.4.2 Black developer unit drive section
12.4.3 Black auto-toner sensor circuit
12.4.4 Black developer unit lifting mechanism
12.5 Color Developer Unit
12.5.1 Functions
12.5.2 Color developer unit drive section
12.5.3 Color auto-toner sensor circuit
12.5.4 Color toner supply
12.6 High-Voltage Transformer Output Control Circuit
12.7 Disassembly and Replacement
13. REVOLVER UNIT
13.1 General Description
13.2 Construction
13.3 Functions
13.4 Drive of Revolver Unit
13.5 Revolver Motor Drive Circuit
13.6 Operation
13.6.1 Home position detection
13.6.2 Escape position movement
13.6.3 During warming-up
13.6.4 During printing
13.6.5 Color toner supply
13.6.6 During image quality control
13.7 Disassembly and Replacement
14. TRANSFER UNIT
14.1 General Descriptions
14.2 Construction
14.3 Functions
14.4 Outline of 1st transfer
14.5 Outline of 2nd transfer
14.6 High-Voltage Transformer Output Control Circuit
14.7 Disassembly and Replacement
15. IMAGE QUALITY CONTROL
15.1 General Description
15.2 Principle of the Sensor
15.3 Flow Chart of Control Procedure
15.4 Construction
15.5 Disassembly and Replacement
16. FUSER UNIT / PAPER EXIT SECTION
16.1 General Description
16.2 Construction
16.3 Functions
16.4 Operation
16.5 Heater Control Circuit
16.5.1 Configuration
16.5.2 Heating principle of IH Heater
16.5.3 IH control circuit interface
16.5.4 Relation between system configuration and IH output
16.5.5 Abnormality in the IH control circuit
16.5.6 Temperature detection section
16.6 Control Circuit of Exit Motor
16.7 Disassembly and Replacement
17. AUTOMATIC DUPLEXING UNIT (ADU)
17.1 General Description
17.2 Construction
17.3 Functions
17.4 Drive of ADU
17.5 Description of Operations
17.6 Flow Chart
17.7 Disassembly and Replacement
18. POWER SUPPLY UNIT
18.1 Construction
18.2 Operation of DC Output Circuits
18.3 Output Channel
18.4 Fuse
18.5 Configuration of Power Supply Unit
18.6 Sequence of Power Supply
18.7 AC Wire Harness
19. PC BOARDS
Contents for SERVICE HANDBOOK:
1. SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES
1.1 Specifications
1.2 Accessories
1.3 Options
1.4 Supplies
1.5 System List
2. ERROR CODE AND SELF-DIAGNOSTIC MODE
2.1 Error Code List
2.1.1 Jam
2.1.2 Service call
2.1.3 Error in Internet FAX / Scanning Function
2.1.4 Printer function error
2.2 Self-diagnosis Modes
2.2.1 Input check (Test mode 03)
2.2.2 Output check (test mode 03)
2.2.3 Test print mode (test mode 04)
2.2.4 Adjustment mode (05)
2.2.5 Setting mode (08)
2.2.6 Pixel counter
2.2.7 Classification List of Adjustment Mode (05) / Setting Mode (08)
3. ADJUSTMENT
3.1 Adjustment Order (Image Related Adjustment)
3.2 Adjustment of the Auto-Toner Sensor
3.3 Performing Image Quality Control
3.4 Image Dimensional Adjustment
3.4.1 General description
3.4.2 Paper alignment at the registration roller
3.4.3 Printer related adjustment
3.4.4 Scanner related adjustment
3.5 Image Quality Adjustment (Copying Function)
3.5.1 Automatic gamma adjustment
3.5.2 Color Deviation Adjustment
3.5.3 Density adjustment
3.5.4 Color balance adjustment
3.5.5 Gamma balance adjustment
3.5.6 Offsetting adjustment for background processing
3.5.7 Judgment threshold for ACS
3.5.8 Sharpness adjustment
3.5.9 Setting range correction
3.5.10 Setting range correction (Adjustment of background peak)
3.5.11 Adjustment of smudged/faint text
3.5.12 Adaptation to highlighter
3.5.13 Beam level conversion setting
3.5.14 Maximum toner density adjustment to paper type
3.5.15 Maximum text density adjustment
3.5.16 Text/Photo reproduction level adjustment
3.5.17 Black reproduction switching at the Twin color copy mode
3.5.18 Background adjustment(Black Mode)
3.6 Image Quality Adjustment (Printing Function)
3.6.1 Automatic gamma adjustment
3.6.2 Color deviation adjustment
3.6.3 Gamma balance adjustment (Black Mode)
3.6.4 Color balance adjustment (Color Mode)
3.6.5 Adjustment of smudged/faint text
3.6.6 Upper limit value at Toner Saving Mode
3.6.7 Dot size adjustment in black printing
3.6.8 Maximum toner density adjustment to paper type
3.6.9 Image processing: Gamma correction table all clearing
3.7 Image Quality Adjustment (Scanning Function)
3.7.1 Gamma balance adjustment
3.7.2 Density adjustment (Black Mode)
3.7.3 Background adjustment (Gray Scale Mode)
3.7.4 Background adjustment (Color Mode)
3.7.5 Judgment threshold for ACS
3.7.6 Sharpness adjustment
3.7.7 Setting range correction
3.7.8 Setting range correction (Adjustment of background peak)
3.7.9 Fine adjustment of black density
3.7.10 RGB conversion method selection
3.7.11 Reproduction ratio of primary scanning direction (black)
3.7.12 Reproduction ratio of primary scanning direction (color)
3.8 High-Voltage Transformer Setting
3.8.1 General description
3.9 Adjustment of the Scanner Section
3.9.1 Carriages
3.9.2 Lens unit
3.10 Adjustment of the Paper Feeding System
3.10.1 Sheet sideways deviation caused by paper feeding
3.11 Adjustment of the Developer Unit
3.11.1 Doctor-to-sleeve gap (black developer unit)
3.11.2 Doctor-to-sleeve gap (color developer unit)
3.11.3 Black developer unit lift up/down timing adjustment
3.12 Adjustment of the RADF (MR-3018)
3.12.1 Adjustment of RADF Position
3.12.2 Adjustment of RADF Height
3.12.3 Adjustment of Skew
3.12.4 Adjustment of the Leading Edge Position
3.12.5 Adjustment of Horizontal Position
3.12.6 Adjustment of Copy Ratio
3.12.7 Adjustment of RADF Opening/Closing Sensor
3.13 Adjustment of the Finisher (MJ-1022)
3.13.1 Adjusting the jogging plate width
3.13.2 Adjusting the angle of the jogging plate
3.13.3 Adjusting the overlap of the sensor flag
3.13.4 Adjusting the tension of the stack processing motor belt
3.13.5 Releasing the stack tray guide lever fixing plate
3.13.6 Adjustment of the upper tray angle
3.13.7 DIP switch functions
3.14 Adjustment of the Finisher (MJ-1023/1024)
3.14.1 Adjusting the alignment position (Finisher unit)
3.14.2 Adjusting the staple position (Finisher unit)
3.14.3 Adjusting the folding position (Saddle stitcher unit)
3.14.4 Fine adjustment of binding/folding position (Saddle stitcher unit)
3.14.5 Sensor output adjustment (Puncher unit)
3.14.6 Registering the number of punch holes (Puncher unit)
3.15 Adjustment of the Finisher (MJ-1101)
3.15.1 Adjusting the Alignment Position
3.15.2 Adjusting the Stapling Position
3.15.3 B4-size recycled paper mode settings
4. PREVENTIVE MAINTENANCE (PM)
4.1 PM Support Mode
4.1.1 General description
4.1.2 Operational flow and operational screen
4.1.3 Work flow of parts replacement
4.2 General Descriptions for PM Procedure
4.3 Operational Items in Overhauling
4.4 Preventive Maintenance Checklist
4.5 PM KIT
4.6 Jig List
4.7 Grease List
4.8 Precautions for Storing and Handling Supplies
4.8.1 Precautions for storing TOSHIBA supplies
4.8.2 Checking and cleaning of photoconductive drum
4.8.3 Checking and cleaning of drum cleaning blade and transfer belt cleaning blade
4.8.4 Handling of drum cleaner brush
4.8.5 Handling of transfer belt
4.8.6 Checking and cleaning of fuser belt and pressure roller
4.8.7 Checking and replacing the oil roller and cleaning roller
4.8.8 Checking and cleaning of discharge brush
5. TROUBLESHOOTING
5.1 Diagnosis and Prescription for Each Error Code
5.1.1 Paper transport jam (paper exit section)
5.1.2 Paper misfeeding
5.1.3 Paper transport jam
5.1.4 Other paper jam
5.1.5 Cover open jam
5.1.6 RADF jam
5.1.7 Finisher jam
5.1.8 Drive system related service call
5.1.9 Paper feeding system related service call
5.1.10 Scanning system related service call
5.1.11 Fuser unit related service call
5.1.12 Communication related service call
5.1.13 RADF related service call
5.1.14 Circuit related service call
5.1.15 Laser optical unit related service call
5.1.16 Finisher related service call
5.1.17 Image control related service call
5.1.18 Copy process related service call
5.1.19 Toner density control related service call
5.1.20 Other service call
5.1.21 Error in Internet FAX / Scanning Function
5.2 Troubleshooting for the Image
5.3 Replacement of PC Boards and HDD
5.3.1 Replacing HDD
5.3.2 Replacing SYS board
5.3.3 Replacing SLG board
5.3.4 Replacing or clearing NVRAM
5.3.5 Cautions when Data overwrite kit (GP-1060) is installed
5.3.6 HDD information display
5.4 Other errors
6. FIRMWARE UPDATING
6.1 Firmware Updating with Download Jig
6.1.1 PWA-DWNLD-350-JIG2 (48 MB)
6.1.2 Writing the data to the download jig (PWA-DWNLD-350-JIG)
6.1.3 K-PWA-DLM-320
6.2 Firmware Updating with USB Storage Device
6.2.1 Appendix
7. POWER SUPPLY UNIT
7.1 Output Channel
7.2 Fuse
7.3 Configuration of Power Supply Unit
8. REMOTE SERVICE
8.1 Auto Supply Order
8.1.1 Outline
8.1.2 Setting Item
8.1.3 Setting procedure
8.1.4 Order Sheet Format
8.2 Service Notification
8.2.1 Outline
8.2.2 Setting
8.2.3 Items to be notified
9. DATA CLONING with USB STORAGE DEVICE
10. WIRE HARNESS CONNECTION DIAGRAMS
10.1 AC Wire Harness
10.2 DC Wire Harness
10.3 Electric Parts Layout
Contents for PARTS LIST:
COVER-1-ASM
COVER-2-ASM
CONTROL-PANEL-ASM
BASE-FRAME-ASM
FRONT-FRAME-ASM
REAR-FRAME-ASM
POWER-SUPPLY-ASM
CASE-SYS-ASM
CASE-LGC-ASM
LASER-OPTICAL-UNIT-ASM
OPTICAL-FRAME-ASM
TR2-UNIT-1-ASM
TR2-UNIT-2-ASM
DRUM-DRIVE-ASM
DEV-DRIVE-ASM
FEED-DRIVE-ASM
OPTICAL-DRIVE-ASM
FEEDER-1-ASM
FEEDER-2-ASM
BYPASS-ASM
BYPASS-FEEDER-1-ASM
BYPASS-FEEDER-2-ASM
ALIGNING-1-ASM
ALIGNING-2-ASM
PLATEN-ASM
CRG-1-ASM
CRG-2-ASM
MAIN-CHARGER-ASM
TRANSPORT-BELT-UNIT-1-ASM
TRANSPORT-BELT-UNIT-2-ASM
BELT-CLEAN-UNIT-ASM
CLEANER-ASM
DEVELOPER-YMC-ASM
DEVELOPER-BLACK-ASM
REVOLVER-UNIT-1-ASM
REVOLVER-UNIT-2-ASM
TONER-1-ASM
TONER-2-ASM
FUSER-1-ASM
FUSER-2-ASM
FUSER-3-ASM
FUSER-4-ASM
ADU-ASM
DRAWER-ASM
PWA-LGC-1
PWA-LGC-2
PWA-SYS-1
PWA-SYS-2
PWA-SYS-3
PWA-SYS-4
PWA-SYS-5
PWA-SLG
PWA-DRV
JIGS & GREASE
DOWNLOAD JIGS
SUPPLIES
REPLACE UNIT
PM-KIT
Number of pages: 1270.
File Data
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