Epson LX-86TM Especificações descarregar pdf (Página 89)

REV.-A

4. Push the paper feed roller shaft down, slide it approximately 2 cm to the left, and lift it to remove

it.

Frame

Fig. 4-13. Removal of Paper Feed Roller Shaft

5. Loosen the four tabs securing the paper guide plate and the paper guide plate spacer to the frame,

using a screwdriver, and lift them to remove them.

(Push the tabs out from the frame.)

Fig. 4-14. Removal of Paper Guide Plate and Spacer

4-1o

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 141 142

TECHNICAL MANUAL 1
PRECAUTIONS 3
REVISION SHEET 5
TABLE OF CONTENTS 6
CHAPTER 1 7
GENERAL DESCRIPTION 7
FEATURES 9
1.2 INTERFACE 11
1.3 SPECIFICATIONS 14
1.4 OPERATING CONTROLS 20
Middle and 21
1.5 MAIN COMPONENTS 26
CHAPTER 2 30
OPERATING PRINCIPLES 30
2.1 GENERAL 33
MODEL-3A1O PRINTER MECHANISM 34
(MAIN BOARD) 34
2.3 POWER SUPPLY CIRCUIT 35
2.3.2 Regulator Circuit 37
2.4 CONTROL CIRCUIT 41
(ControIl 46
1. Address latch 47
-“’’’’’’’’’’’’’;’’’”:l 51
*m(cN2pin’3) 54
2.4.6 Paper Feed Motor 59
~---vuvu 61
61
EPSON LX-800 62
2.4.8 Print Timing Control 66
4,,1<,1 68
2.5.1 Sensor Mechanism 69
Carriage Guide Shaft 70
Paper Feed Motor 72
Breaking 74
CHAPTER 3 75
OPTIONAL EQUIPMENT 75
3.1 GENERAL 76
3.2 OPTIONAL INTERFACES 76
CHAPTER 4 77
ISASSEMBLY, ASSEMBLY, AND 77
ADJUSTMENT 77
4.2 DISASSEMBLY AND ASSEMBLY 82
4.2.2 Removal of Cases 83
Flat Spring 92
, Platen 92
Platen Gear 92
Carriaga Guide 93
Shaft Ground 93
Sprocket Shaft 98
Guide Roller’ 98
Sprocket Wheel 98
4.3 ADJUSTMENT 99
,’v?,?la 100
CHAPTER 5 101
TROUBLESHOOTING 101
LIST OF FIGURES 101
LIST OF TABLES 101
‘ARN’NG~ 102
I printer mechanism 104
Set the gap-adjustment lever 107
Printhead 111
5.3 UNIT REPAIR 112
● The l/F cable is 113
Solution 113
5.3.2 Printer Mechanism 115
● Replace the 116
● Resistance value: 117
● Sheet load 118
● Remove any 118
CHAPTER 6 120
MAINTENANCE 120
6.1 PREVENTIVE MAINTENANCE 121
Adhesive Application Point 122
No. of Point 122
APPENDIX 124
A.1 PRINCIPAL 126
SPECIFICATIONS 126
Fig. A-2. wPD7810/7811 Block 128
E05A03BA 132
(E05A03CA) 132
Gate Array 132
Memory Ce I 134
A.1.4 494 Regulator IC 135
A.1.5 7407 137
Fig. A-1 2. 7407 Pin Diagram 137
A.2 SCHEMATICS AND DIAGRAMS 138
Fig, A-15 139
Board Component Layout 139
in Japan 142
87.07 -.6 142

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Epson LX-86TM Especificações Página 89

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