Epson Stylus Color 400 Service Manual Page 34
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EPSON Stylus Color 400 Service Manual
Rev. A
1-2
7
1.8.3 C206 PSB/PSE Power Supply Board
In the electric boards for Stylus Color 400, switching regulator method is used and supplies
stable logic and power voltages constantly. Also, since this C206PSB board has secondly type
switch for its circuit system, it is possible to keep supplying electricity to the C206 main control board
for 30 seconds even after the power switch is turned off.
Using this time difference, even when mis-operation is done by the user such as turning off the power
during the middle of printing work, it prevents thickened ink from attaching around the nozzle plate
by transferring the head to cap position.
1.8.4 C206PNL(Panel) Board
Panel board (C206 PNL board) is located in the panel case where is in the right bottom of the front
printer and consists of 3 switches, 4 LEDs and 1 connector.
Trans (T1)Q1 (FET)
CN2
CN1
Fuse (F1)
C11
PC1
Filter (L1)
IC51
C51
Figure 1-12. Exterior of C206 PSB/PSE Board
Figure 1-13. Exterior of C206 PNL Board
- SERVICE MANUAL 1
- Copyright 2
- Nagano, Japan 2
- PRECAUTIONS 3
- REVISION SHEET 5
- TABLE OF CONTENTS 6
- Chapter 1 7
- Product Descriptions 7
- 1.1 Features 8
- 1.2 Specifications 9
- 1.2.2 Paper Specification 11
- 1.2.4 Printing Area 13
- Printable area 14
- 1.2.5 Environmental Condition 15
- Chapter1 Product Description 17
- Note 3) 17
- 1.2.7 Physical Specification 18
- 1.2.8 Input Data Buffer 18
- 1.2.9 Electric Specification 19
- 1.2.10 Reliability 19
- 1.2.11 Safety Approvals 19
- 1.2.12 Acoustic Noise 20
- 1.2.13 CE Marking 20
- 1.3 Interface 22
- Tready Tbusy 24
- Tack Tnbusy 24
- Virtual Busy Status 25
- 1.4 Control Panel 26
- 1.4.2 Panel Functions 27
- 1.5 Error Status 30
- 1.5.4 No Ink-Cartridge 31
- 1.5.5 Maintenance Request 31
- 1.5.6 Fatal Errors 31
- 1.6 Printer Initialization 32
- 1.7 Initialization Settings 32
- 1.8 Main Components 33
- 1.8.4 C206PNL(Panel) Board 34
- Chapter 2 35
- Operating Principles 35
- 2.1 OVERVIEW 36
- 2.1.1.1 Printing Mechanism 37
- Nozzle Plate 38
- Ink Course 38
- 2.1.1.1.2 Printing Method 39
- Nozzle No.#9 40
- Nozzle No.#4 40
- Full-Overlap Micro-Weave: 41
- 2.1.1.2 Carriage Mechanism 42
- Parallelism 44
- Adjust Lever 44
- Eject Notched Roller 48
- Eject Roller 48
- PF Roller 48
- Support Roller 48
- 2.1.1.4 Ink System 49
- 2.1.1.4.1 Pump Mechanism 50
- CW Rotation 51
- CCW Rotation 51
- Tube pressured 51
- Tube released 51
- 2.1.1.4.2 Cap Mechanism 52
- +42 V DC 53
- Filter Circuit 55
- Prevention of 55
- Rectifier circuit 55
- Full Wave 55
- 2.2.2 C206 MAIN Board 56
- 2.2.2.1 Reset Circuits 58
- 2.2.2.2 Sensor Circuits 59
- 2.2.2.4 Timer Circuit 61
- 2.2.2.5 DRAM Control 61
- Gate Array 63
- E05B43(IC2) 63
- E05B44(IC2) 66
- LB1845(IC15) 66
- Chapter 3 67
- Disassembly and Assembly 67
- 3.1 OVERVIEW 68
- 3.1.2 Tools 69
- 3.2 Disassembly Procedures 71
- 3.2.1 Removing the Housing 72
- WORK POINT 73
- Fastener Head 77
- Print Head Unit 77
- Head Cleaner 80
- Order of assembling 80
- PF Roller Assembly 91
- HP Detector 93
- Chapter 4 94
- Adjustment 94
- 4.1 Overview 95
- 4.2 Adjustment 96
- Print Head Side 97
- Cleaner Head 97
- Overlap amount 97
- = More than 0.5mm 97
- Print Head 102
- 4.2.2.5 Bi-D Adjustment 103
- Chapter 5 105
- Troubleshooting 105
- 5.1 Troubleshooting 106
- Rev.A5-2 107
- Rev.A5-4 109
- 5.2.2 Error is detected 110
- Rev.A5-6 111
- Rev.A5-8 113
- Rev.A5-10 115
- Rev.A5-12 117
- Rev.A5-14 119
- Chapter 6 121
- Maintenance 121
- 6.1 OVERVIEW 122
- 6.1.3 Lubrication 123
- Chapter 6 Maintenance 124
- (Oil pad) 125
- Carriage Assembly 125
- (bottom view) 125
- "SHAFT, CR, GUIDE" 125
- "GEAR, 23.2" 127
- "GEAR, 16, 40.8" 127
- "GEAR, 67.2" 127
- "COMBINATION GEAR 127
- 8, 14.4" 127
- "HOPPER, ASSEMBLY" 128
- "FRAME, ASF" 128
- Appendix 129
- A.1 Connector Summary 130
- A.2 Connector Summary 131
- A.3 EEPROM Address Map 133
- A.5 Exploded Diagrams 141
- As of September, 1996 144
- SEIKO EPSON CORPORATION 145
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