Content for SERVICE MANUAL TOSHIBA e-STUDIO 350, e-STUDIO 352, e-STUDIO 353, e-STUDIO 450, e-STUDIO 452, e-STUDIO 453:
1. SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES
1.3.1 e-STUDIO350/450
1.3.2 e-STUDIO352/452
1.5.1 e-STUDIO350/450
1.5.2 e-STUDIO352/452
2. OUTLINE OF THE MACHINE
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 Installation and Replacement of Covers and PC boards
2.5.1 External covers
3.1 General Description of Copying Process
3.2 Details of Copying Process
3.3 Comparison with DP4500/3500
4. GENERAL OPERATION
4.1 Overview of Operation
4.2 Description of Operation
4.2.2 Ready state (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
4.4.1 Immediately after the power is turned ON
4.4.2 Automatic paper feed copying
5.1 Control Panel and Display Panel
5.2 Items Shown on the Display Panel
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
6.3 Description of Operation
6.3.2 Scanning drive circuit
6.3.3 Initialization at power-ON
6.4 Control of Exposure Lamp
6.4.1 General description
6.4.3 Control circuit for the exposure lamp
6.5 General Description of CCD Control
6.5.1 Opto-electronic conversion
6.5.2 Shading correction
6.6 Automatic Original Size Detection Circuit
6.6.1 Principle of original size detection
6.6.2 Process of detection of original size
6.7 Disassembly and Replacement
7.1 General Description
7.3.2 Functions of image processing circuit
7.4.2 Functions of image processing circuit
7.5 Laser Driving PC Board (LDR board)
8. LASER OPTICAL UNIT
8.1 General Description
8.4 Laser Optical Unit Cooling Fan
8.6 Disassembly and Replacement
9. PAPER FEEDING SYSTEM
9.2.1 Operation of bypass pickup roller
9.2.2 Operation of drawer pickup roller
9.2.3 Separation of paper
9.2.4 General operation
9.3 Drive Circuit of Tray-up Motor
9.4 Disassembly and Replacement
10.1 General Description
10.3.1 Main motor drive
10.3.2 Control signals
10.4 Disassembly and Replacement
11. DRUM RELATED SECTION
11.3 Output Control Circuits of High-Voltage Transformer
11.3.2 Description of operations
11.4 Drum Temperature Detection Circuit
11.5 Temperature/Humidity Sensor
11.5.1 General description
11.6 Disassembly and Replacement
12. DEVELOPMENT SYSTEM
12.3 Drive Circuit of Toner Motor
12.4 Auto-Toner Circuit
12.4.1 General description
12.4.2 Function of auto-toner sensor
12.4.3 Adjustment using the temperature / humidity sensor
12.4.4 Adjustment using the drum thermistor
12.5 Disassembly and Replacement
13. FUSER UNIT / PAPER EXIT SECTION
13.1 General Description
13.4 Heater Control Circuit
13.4.1 Configuration
13.4.2 Heating principle of IH Heater
13.4.3 IH control circuit interface
13.4.4 Relation between system configuration and IH output
13.4.5 Temperature detection section
13.4.6 Abnormality in the IH control circuit
13.5 Control Circuit of Exit Motor
13.6 Exit Motor Drive
13.7 Disassembly and Replacement
14. AUTOMATIC DUPLEXING UNIT (ADU).
14.1 General Description
14.2 Description of Operations
14.5 Disassembly and Replacement
15. POWER SUPPLY UNIT
15.2 Operation of DC Output Circuits
15.5 Configuration of Power Supply Unit
15.6 Sequence of Power Supply
15.7 AC Wire Harness
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Content for SERVICE HANDBOOK TOSHIBA e-STUDIO 350/352/353/450/452/453:
1 SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES
1.3.2 e-STUDIO352/353/452/453
1.5.2 e-STUDIO352/353/452/453
2 ERROR CODE AND SELF-DIAGNOSTIC MODE
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) (e-STUDIO350/450)
2.2.2 Input check (Test mode 03) (e-STUDIO352/353/452/453)
2.2.3 Output check (test mode 03)
2.2.4 Test print mode (test mode 04)
2.2.5 Adjustment mode (05) (e-STUDIO350/450)
2.2.6 Adjustment mode (05) (e-STUDIO352/353/452/453)
2.2.7 Setting mode (08) (e-STUDIO350/450)
Content for SERVICE MANUAL TOSHIBA e-STUDIO 350, e-STUDIO 352, e-STUDIO 353, e-STUDIO 450, e-STUDIO 452, e-STUDIO 453:
1. SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES
1.3.1 e-STUDIO350/450
1.3.2 e-STUDIO352/452
1.5.1 e-STUDIO350/450
1.5.2 e-STUDIO352/452
2. OUTLINE OF THE MACHINE
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 Installation and Replacement of Covers and PC boards
2.5.1 External covers
3.1 General Description of Copying Process
3.2 Details of Copying Process
3.3 Comparison with DP4500/3500
4. GENERAL OPERATION
4.1 Overview of Operation
4.2 Description of Operation
4.2.2 Ready state (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
4.4.1 Immediately after the power is turned ON
4.4.2 Automatic paper feed copying
5.1 Control Panel and Display Panel
5.2 Items Shown on the Display Panel
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
6.3 Description of Operation
6.3.2 Scanning drive circuit
6.3.3 Initialization at power-ON
6.4 Control of Exposure Lamp
6.4.1 General description
6.4.3 Control circuit for the exposure lamp
6.5 General Description of CCD Control
6.5.1 Opto-electronic conversion
6.5.2 Shading correction
6.6 Automatic Original Size Detection Circuit
6.6.1 Principle of original size detection
6.6.2 Process of detection of original size
6.7 Disassembly and Replacement
7.1 General Description
7.3.2 Functions of image processing circuit
7.4.2 Functions of image processing circuit
7.5 Laser Driving PC Board (LDR board)
8. LASER OPTICAL UNIT
8.1 General Description
8.4 Laser Optical Unit Cooling Fan
8.6 Disassembly and Replacement
9. PAPER FEEDING SYSTEM
9.2.1 Operation of bypass pickup roller
9.2.2 Operation of drawer pickup roller
9.2.3 Separation of paper
9.2.4 General operation
9.3 Drive Circuit of Tray-up Motor
9.4 Disassembly and Replacement
10.1 General Description
10.3.1 Main motor drive
10.3.2 Control signals
10.4 Disassembly and Replacement
11. DRUM RELATED SECTION
11.3 Output Control Circuits of High-Voltage Transformer
11.3.2 Description of operations
11.4 Drum Temperature Detection Circuit
11.5 Temperature/Humidity Sensor
11.5.1 General description
11.6 Disassembly and Replacement
12. DEVELOPMENT SYSTEM
12.3 Drive Circuit of Toner Motor
12.4 Auto-Toner Circuit
12.4.1 General description
12.4.2 Function of auto-toner sensor
12.4.3 Adjustment using the temperature / humidity sensor
12.4.4 Adjustment using the drum thermistor
12.5 Disassembly and Replacement
13. FUSER UNIT / PAPER EXIT SECTION
13.1 General Description
13.4 Heater Control Circuit
13.4.1 Configuration
13.4.2 Heating principle of IH Heater
13.4.3 IH control circuit interface
13.4.4 Relation between system configuration and IH output
13.4.5 Temperature detection section
13.4.6 Abnormality in the IH control circuit
13.5 Control Circuit of Exit Motor
13.6 Exit Motor Drive
13.7 Disassembly and Replacement
14. AUTOMATIC DUPLEXING UNIT (ADU).
14.1 General Description
14.2 Description of Operations
14.5 Disassembly and Replacement
15. POWER SUPPLY UNIT
15.2 Operation of DC Output Circuits
15.5 Configuration of Power Supply Unit
15.6 Sequence of Power Supply
15.7 AC Wire Harness
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Content for SERVICE HANDBOOK TOSHIBA e-STUDIO 350/352/353/450/452/453:
1 SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES
1.3.2 e-STUDIO352/353/452/453
1.5.2 e-STUDIO352/353/452/453
2 ERROR CODE AND SELF-DIAGNOSTIC MODE
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) (e-STUDIO350/450)
2.2.2 Input check (Test mode 03) (e-STUDIO352/353/452/453)
2.2.3 Output check (test mode 03)
2.2.4 Test print mode (test mode 04)
2.2.5 Adjustment mode (05) (e-STUDIO350/450)
2.2.6 Adjustment mode (05) (e-STUDIO352/353/452/453)
2.2.7 Setting mode (08) (e-STUDIO350/450)
