Epson Stylus Color 400 Service Manual Page 33
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- Table of contents
- TROUBLESHOOTING
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Chapter1 Product Description
Rev. A
1-2
6
1.8 Main Components
Stylus Color 400 has following major units. Also, it is one of the major characteristics that the bottom of
the Printer mechanism plays the role as Lower case at the same time. Each units from 2) to 4) are
simply explained as following.
1) Upper case
2) Printer Mechanism
3) C206 Main control board
4) C206 PSB/PSE(Power Supply Board)
5) C206 PNL(Panel Board)
1.8.1 Printer Mechanism
Unlike EPSON’s previous ink jet printer mechanisms, one of the major characteristics of Stylus Color
400 is that the printer has no Engage/Dis-Engage mechanism in order to change over pump mechanism
and paper feeding mechanism. In stead, however, this change-over control is done by the distinction
between turning direction of PF/Pump motor and position of present carriage unit. Also, another major
characteristic is that print head is changed to be one unit combined with black and CMY.
Nozzle configuration for black is 64 nozzles (each line has 90-dpi and between #1-#2 has 180dpi).
On the other hand, CMY nozzle has 21 nozzles(90dpi) for each color. Following figure shows
exterior of mechanism.
1.8.2 C206 Main Control Board
C206 main control board controls Stylus Color 400 and consists of following major electric elements.
1) CPU (TMP95C061F) 5) EEPROM (3strings Serial Type:1K-bit)
2) Gate Array (E05B44BA) 6) LB1845 (Motor Driver)
3) Program ROM (EEPROM or MASK ROM) 7) With Heat Sink transistor A1469, C3746
4) D-RAM (1CAS/2WE Type: 1M-bit) (MACH head type)
CN1(Parallel I/F Connector)
CN8(Head Control)
CN10
(Pwer Supply)
CN6(CR Motor)
CN7(PF Motor)
Common Driver Transistor
(Q7,Q9 with Heat Sink)
ASIC E05B44(IC2)
CPU TMP95C061
(IC1)
Dinamic RAM(IC4)
Reset for Logic
(IC8)
Reset for Power
(IC9)
1K-bit EEPROM(IC11)
Carriage Motor Driver(IC14)
PF Motor Driver(IC15)
Trapezoidal Wave form Driver(IC6)
Transceiver for
Serial I/F(IC16)
CN3(Panel I/F)
CN5(CRHP Sensor)
CN4(PE Sensor)
CN11(ASF phase Sensor)
Program ROM(EP-ROM or MASK ROM)
CN2(RS422 Serial I/F)
Battery for
timer IC
Figure 1-11. Exterior of C206 Main Control 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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