Epson CX3800 Service Manual Page 123
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- Table of contents
- TROUBLESHOOTING
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EPSON Stylus CX3700/CX3800/CX3805/CX3810/DX3800/DX3850 Revision A
DISASSEMBLY/ASSEMBLY Printer Section 123
External view (3)
Figure 4-35. Removing Carriage Unit (3)
CR Encoder Removal
1. Disconnect the Head FFC from the connector of the CR Encoder Board, and
pull out the Head FFC from the notch of Carriage.
2. Rem
ove the screws (x2, ) that secure the CR Encoder Board, and remove
the CR Encoder Board
Head FFC Removal
1. Remove the Printhead from the Carriage Unit.
2. Pull
out the Head FFC from the notch of the Carriage.
3. Release the Head FFC from the tabs (x4, ) that secure the Head FFC.
4. Dis
connect the Head FFC from the connector of the CSIC board.
Tabs
Notch
CR Encoder Board Connector
C.P.B. (P1)1.7x5, F/ZB
(0.5kgfcm)
Notch
Head FFC
Guide Pins
Connector
Match the guide pins of the Carriage (x2, ) with the positioning
hole (x2) of the CR Encoder Board.
A D J U S T M E N T
R E Q U I R E D
After replacing the Carriage Unit with a new one, always apply
grease KEN to the specified parts.
• Refer to Figure 6-7 (p152)and Figure 6-8 (p152) for details.
After replacing the Carriage Unit,
perform the adjustment in
the following order. (Refer to Chapter 5 “ADJUSTMENT”)
1. “PG Adjustment”
2. “Top Marg
in Adjustment”
3. “H
ead Angular Adjustment”
4. “Bi-D Adjustment”
5. “First Dot Adjustment”
- SERVICE MANUAL 1
- PRECAUTIONS 3
- About This Manual 4
- Revision Status 5
- CONTENTS 6
- Chapter 5 ADJUSTMENT 7
- Chapter 6 MAINTENANCE 7
- Chapter 7 APPENDIX 7
- PRODUCT DESCRIPTION 8
- 1.1 Overview 9
- 1.2 Specifications 10
- • Humidity 40 to 60% RH 11
- 1.2.2 Scanner Specifications 18
- 1.2.3 Common 19
- 1.2.3.4 Acoustic Noise 20
- 1.2.3.6 CE Marking 20
- 1.3 Interface 21
- 1.4 Stand-alone Copy 22
- 1.4.2 Copy Speed 23
- 1.4.4.1 Standard Copy 24
- 1.4.4.2 BorderFree Copy 25
- 1.4.4.3 Small Margins Copy 26
- 1.5 Control Panel 27
- (For Europe and Asia) 28
- Figure 1-14. Control Panel 28
- 1.5.3 Operations 29
- 1.5.3.2 Low Power Panel Mode 30
- 1.5.5 Memory Functions 33
- OPERATING PRINCIPLES 35
- 2.1 Overview 36
- 2.2 Printer Mechanism 36
- 2.2.2 Print Head 37
- 2.2.2.1 Printing Process 38
- 2.2.2.2 Printing Method 38
- Carriage Unit 39
- CR Motor 39
- CL position 46
- (valve closing condition) 46
- Ink absorption position 46
- (valve opening condition) 46
- 2.2.5.1 Capping Mechanism 47
- 2.2.5.2 Pump Unit Mechanism 48
- 2.2.6 Ink Sequence 49
- 2.3 Scanner Mechanism 51
- 2.4.1 PSB/PSE Board 53
- 2.4.2 C612 Main Board 54
- 2.4.2.3 Motor Driver Circuit 57
- 2.4.2.4 Combination Circuit 58
- 2.4.2.5 Sensor Circuit 59
- TROUBLESHOOTING 61
- 3.1 Overview 62
- CN1 Panel BoardPanel FFC 66
- Extension Spring Retard 69
- LD Roller 70
- Compression Spring 70
- Extension Spring 0.143 71
- Clutch tooth 71
- Compression Spring 2.36 72
- Change Lever 72
- Memory Chip 73
- Connector 73
- Head FFC 73
- CSIC Connectors 73
- CSIC Board 73
- PE Sensor Lever 74
- PE Sensor 74
- Spring 0.22 74
- EJ Frame Unit 75
- Paper Guide Front Unit 75
- Spur Gear 36 75
- Star Wheel Holders 76
- Paper Guide Upper Unit 76
- Scanner Motor 77
- Connector Cable 77
- Slit of the CR 81
- Encoder Board 81
- CR Scale 81
- Encoder FFCCR Encoder Board 81
- PF Encoder Sensor 82
- PE Sensor Connector Cable 82
- Slider Lock Lever 83
- Seal rubber part 86
- Compression 86
- Print Head 87
- Connectors 87
- CN6 CN5 CN7 87
- CR movement 89
- Porous Pad Paper Guide Front 90
- Star Wheel Rollers 91
- DISASSEMBLY/ASSEMBLY 92
- W A R N I N G 93
- 4.1.3 Work Completion Check 94
- 4.3 Disassembly Procedures 96
- 4.4 Printer Section 97
- 4.4.2 Paper Support Assy 98
- 4.4.3 Stacker Assy 98
- 4.4.4 Scanner Unit 99
- 4.4.5 Panel Unit 100
- 4.4.6 Housing, Upper 101
- 4.4.7 Printhead 102
- A D J U S T M E N T 103
- R E Q U I R E D 103
- 4.4.8 Printer Mechanism 104
- C A U T I O N 105
- X axis: 4 points 106
- 4.4.9 PS Board Unit 107
- Tube Clump 108
- Eject Ink 108
- Waste Ink Tube 108
- 4.4.11 Main Board Unit 111
- 4.4.12 ASF Unit 113
- 4.4.13 Holder Shaft Unit 115
- 4.4.16 CR Guide Frame 118
- 4.4.17 CR Motor 119
- (only after replacement) 119
- 4.4.18 PF Motor 120
- Board/Head FFC 121
- for details 123
- 4.4.21 EJ Frame Unit 125
- 4.4.22 Ink System Unit 126
- and Figure 6-12 (p153)for 127
- 4.4.24 PF Roller Unit 128
- 4.5 Scanner Section 129
- 4.5.2 Scanner Carriage Unit 130
- Driven Pulley 132
- ADJUSTMENT 133
- C H E C K 134
- P O I N T 134
- PF band 135
- PF Band Ad 137
- 5.2.1 EEPROM Data Copy 137
- 5.2.2 Market Setting 137
- 5.2.3 USB ID Input 137
- 5.2.4 Waste Ink Pad Counter 137
- 5.2.5 Ink Charge 138
- 5.2.6 Head ID Input 138
- 5.2.7 Top Margin Adjustment 138
- 5.2.8 First Dot Adjustment 138
- [Judging Standard] 139
- 5.2.10 Bi-D Adjustment 140
- 5.2.11 CR Offset 140
- 5.3.1 PG Adjustment 141
- C.B.S 3x6 142
- Thickness gauge 142
- PG up (narrower) 143
- PG down (wider) 143
- Left side Right side 144
- PF Scale 144
- MAINTENANCE 148
- MAINTENANCE Overview 150 150
- Guide Rail of the 151
- Housing, Lower 151
- Scanner Carriage Unit 151
- MAINTENANCE Overview 152 152
- MAINTENANCE Overview 153 153
- Bush 10 (Right) 154
- PF Roller Unit 154
- Spool Gear 13.5 154
- APPENDIX 155
- 7.1 Connector Summary 156
- Table 7-3. CN3 - PE Sensor 157
- Table 7-4. CN5 - Print Head 157
- Table 7-5. CN6 - Print Head 157
- Table 7-6. CN7 - Print Head 157
- 7.2 Exploded Diagram 159
- APPENDIX Exploded Diagram 160 160
- APPENDIX Exploded Diagram 161 161
- APPENDIX Exploded Diagram 162 162
- APPENDIX Exploded Diagram 163 163
- APPENDIX Exploded Diagram 164 164
- 7.3 Parts List 165
- APPENDIX Parts List 166 166
- 7.4 Electrical Circuits 167
- Board: C612 MAIN 168
- Rev. : B 168
- Sheet: 1/2 168
- Board: C610 PSB 169
- Sheet: 1/1 169
- Board: C610 PSE 170
- Board: C612 PNL 171
- Rev. : A 171
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