Epson CX3800 Service Manual Page 70
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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EPSON Stylus CX3700/CX3800/CX3805/CX3810/DX3800/DX3850 Revision A
TROUBLESHOOTING Troubleshooting 70
Table 3-9. Check point for the paper out error according to each phenomenon
Occurrence
timing
CR position
Detailed phenomenon
Defective
unit/part name
Check point Remedy
• Operation
•–
The LD Roller cannot pick up paper
although the LD Roller attempt to rotate
correctly.
Holder Shaft Unit
1. Check if any paper dust is not adhered to the surface of
the LD Roller.
1. Set a cleaning sheet in the ASF Unit up side
down. Then holding the top edge, try to load
the paper from the Printer driver. The micro
pearl on the LD Roller surface is removed. To
remove severe smear, staple a cloth
moistened with alcohol to a post card and
clean the roller in the same manner.
*If the problem is not solved, replace the Holder shaf t unit with new one.
• Operation
•–
The Hopper does not operate during the
paper loading sequence although the LD
Roller rotates to load paper from the
ASF Unit.
ASF Unit
1. Check if the Hopper operates correctly in the paper
loadin
g sequence.
1. Reassemble the Compression Spring 2.51
between the ASF Frame and the Hopper.
LD Roller
Non-adhesive Area
(Use a post card
for the base sheet)
Staplers
Cloth moistened
with alcohol
CL Sheet
Adhesive Area
This side down
Compression Spring
2.51
Hopper
- 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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