Epson Stylus CX8400 Service Manual Page 137
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- Table of contents
- TROUBLESHOOTING
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EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200 series/SX200 series/Stylus CX8300/CX8400/DX8400/NX400/TX400 series/SX400 series Revision C
DISASSEMBLY/ASSEMBLY Disassembling the Scanner Unit 137
Confidential
6. Remove the Scanner Timing Belt together with the Torsion Spring from the
Scanner CR Holder.
Figure 4-113. Removing the Scanner Timing Belt and Torsion Spring
When installing the Scanner Timing Belt, attach the Torsion
Spring as shown in
Figure 4-113.
When installing the CIS Springs (x2), attach each end to their
positioning tabs (x1 each) of the Scanner CR Holder as shown
in
Figure 4-112.
When replacing the CIS Unit, be sure to replace the spacers
on both ends. Check the label on the CIS Unit and select the
corresponding Spacers as shown below.
• Label A: cis, A17 Spacer
• Label B: cis, B19 Spacer
• Label C: cis, C21 Spacer
Figure 4-114. Replacing the Spacers
Scanner Timing Belt
Torsion Spring
Scanner CR Holder
Label
Spacer
- SERVICE MANUAL 1
- PRECAUTIONS 3
- About This Manual 4
- Revision Status 5
- Contents 6
- Chapter 6 MAINTENANCE 7
- Chapter 7 APPENDIX 7
- Chapter 5 ADJUSTMENT 7
- PRODUCT DESCRIPTION 8
- 1.1 Features 9
- 1.2 Printing Specifications 10
- (H x V dpi) 11
- 1.2.4 Supported Paper 13
- 1.2.5 Printing Area 15
- 1.3 Scanner Specifications 15
- 1.3.1 Scanning Range 15
- (1 msec or less) 16
- (2 msec or less) 16
- 1.5 Interface 17
- 1.5.2 Memory Card Slots 18
- 1.6 Control Panel 19
- 1.7.1.4 Copy Speed 30
- 1.7.2.7 Print Layout 34
- <Borderless> 35
- <With Border> 35
- Paper top edge 35
- (USB Direct Print/PictBridge) 36
- USB Direct Print 37
- PictBridge 37
- 1.7.5 Setup Mode 39
- 1.7.5.8 Head Alignment 40
- OPERATING PRINCIPLES 41
- 2.1 Overview 42
- 2.1.2 Motors & Sensors 43
- 2.1.3 Printhead 44
- 2.1.3.1 Printing Process 45
- 2.1.3.2 Printing Method 45
- Carriage Unit 46
- Main Frame 46
- Timing Belt 46
- 2.1.5.2 Paper Feed Mechanism 51
- 2.1.6 Ink System Mechanism 52
- 2.1.6.3 Wiping Mechanism 53
- 2.1.6.4 Pump Unit Mechanism 54
- 2.1.7 Ink Sequence 55
- 2.2 Scanner Mechanism 56
- TROUBLESHOOTING 58
- W A R N I N G 59
- 3.2 Troubleshooting 60
- Scanner Carriage FFC 66
- Scanner Carriage Unit 66
- Compression Spring 2.36 68
- Change Lever 68
- Upper Paper Guide Unit 68
- Slit of the CR Encoder Board 69
- CR Scale 69
- CR Encoder BoardEncoder FFC 69
- PF Scale PF Encoder Sensor 70
- PE Sensor 70
- Connector Cable 70
- Paper Back Lever 71
- Extension Spring 6.4 71
- Extension Spring Retard 71
- Backside of ASF Unit 71
- Star Wheel Holder Assy 72
- Star Wheel Holders 72
- EJ Roller Unit 72
- Document Glass 78
- Backside of ASF 79
- Extension Spring 6.45 79
- Panel FFC 80
- PS Board 81
- Power Unit Cable 81
- PS Board Unit 81
- Seal rubber part 85
- Compression 85
- Spring 1.67 85
- CR movement 87
- PF Roller Unit 87
- LD Roller 88
- Front Paper Guide Unit 88
- Porous Pad Front Paper Guide 88
- Star Wheels 89
- DISASSEMBLY/ASSEMBLY 90
- 4.1.2 Tools 92
- 4.1.3 Work Completion Check 92
- Panel Unit 94
- LCD Unit 94
- 4.2 Disassembly Procedures 95
- Paper Support Assy 96
- Guide Pins 96
- Stacker Assy 96
- Document Cover 97
- ASF Cover 97
- 4.3.4 Scanner Unit/Hinge 98
- Confidential 100
- 4.4.1 Main Board Unit 101
- 4.4.2 Panel Unit/LCD Unit 103
- 4.4.3 Power Supply Unit 105
- 4.5.1 Printhead 107
- 4.5.2 CR Scale 109
- 4.5.3 Hopper 110
- 4.5.5 Left Frame 113
- 4.5.7 Star Wheel Holder Assy 116
- 4.5.8 EJ Roller 116
- 4.5.9 PF Encoder Sensor 117
- 4.5.10 PF Scale 118
- 4.5.11 PF Motor 119
- 4.5.12 CR Motor 120
- 4.5.13 Main Frame Assy 122
- 4.5.14 CR Unit 124
- 4.5.15 Upper Paper Guide 126
- 4.5.16 ASF Unit 126
- 4.5.17 Ink System Unit 128
- Waste Ink Tube 130
- Tube Stopper 130
- 4.5.18 Front Paper Guide 131
- 4.5.19 PF Roller 132
- 4.5.20 Waste Ink Pads 133
- 4.6.2 Scanner Carriage Unit 135
- Scanner Timing Belt 137
- Torsion Spring 137
- Scanner CR Holder 137
- 4.6.3 Scanner Motor Unit 138
- Stylus CX7300/TX200 series 139
- ADJUSTMENT 141
- C H E C K 142
- P O I N T 142
- 5.1.2 Required Adjustments 144
- 5.2.1 TOP Margin Adjustment 146
- 5.2.4 Bi-D Adjustment 148
- 5.2.5 PF Adjustment 148
- 34 56 782 149
- MAINTENANCE 151
- C A U T I O N 152
- Driven Pulley 153
- MAINTENANCE Overview 154 154
- MAINTENANCE Overview 155 155
- MAINTENANCE Overview 156 156
- MAINTENANCE Overview 157 157
- APPENDIX 158
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