Epson DX7400, CX7300, CX8300 Adjustment, Maintenance, Appendix, Revision A, Disassembly/Assembly

EPSON Stylus CX7300/CX7400/DX7400/CX8300/CX8400/DX8400 Revision A

Chapter 4 DISASSEMBLY/ASSEMBLY
4.1 Overview	98
4.1.1 Precautions	98
4.1.2 Tools	98
4.1.3 Work Completion Check	99
4.1.4 Procedural Differences between the Models	100
4.2 Disassembly Procedures	101
4.3 Removing the Housing	102
4.3.1 Paper Support Assy	102
4.3.2 Stacker Assy	102
4.3.3 Document Cover/ASF Cover	103
4.3.4 Scanner Unit/Hinge	104
4.3.5 Upper Housing/Card Slot Cover	106
4.4 Removing the Circuit Boards	107
4.4.1 Main Board Unit	107
4.4.2 Panel Unit/LCD Unit	109
4.4.3 Power Supply Unit	111
4.5 Disassembling the Printer Mechanism	113
4.5.1 Printhead	113
4.5.2 CR Scale	115
4.5.3 Hopper	116
4.5.4 Removing the Printer Mechanism (Lower Housing)	117
4.5.5 Left Frame	119
4.5.6 Front Frame/Right Frame	120
4.5.7 Star Wheel Holder Assy	122
4.5.8 EJ Roller	122
4.5.9 PF Encoder Sensor	123
4.5.10 PF Scale	124
4.5.11 PF Motor	124
4.5.12 CR Motor	126
4.5.13 Main Frame Assy	127
4.5.14 CR Unit	130
4.5.15 Upper Paper Guide	131
4.5.16 ASF Unit	132
4.5.17 Ink System Unit	133
4.5.18 Front Paper Guide	136
4.5.19 PF Roller	137
4.5.20 Waste Ink Pads	138

4.6 Disassembling the Scanner Unit	139
4.6.1 Upper/Front Scanner Housing	139
4.6.2 Scanner Carriage Unit	140
4.6.3 Scanner Motor Unit	143
4.7 Differences in Disassembling/Reassembling Stylus CX7300/CX7400/DX7400. 144
4.7.1 Panel Unit (CX7300/CX7400/DX7400)	144
Chapter 5 ADJUSTMENT
5.1 Adjustment Items and Overview	147
5.1.1 Servicing Adjustment Item List	147
5.1.2 Required Adjustments	149
5.2 Using the Adjustment Program	151
5.2.1 TOP Margin Adjustment	151
5.2.2 First Dot Position Adjustment	151
5.2.3 Head Angular Adjustment	152
5.2.4 Bi-D Adjustment	153
5.2.5 PF Adjustment	153
5.2.6 PF Band Adjustment	154
5.2.7 Bottom Margin Adjustment	155
Chapter 6 MAINTENANCE
6.1 Overview	157
6.1.1 Cleaning	157
6.1.2 Service Maintenance	157
6.1.3 Lubrication	158
Chapter 7 APPENDIX
7.1 Exploded Diagram / Parts List	164
7.2 Electrical Circuits	164

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