Epson TM-T88II Series Manual de instrucciones descargar pdf (Pagina 82)

Rev. A Troubleshooting Guide 4-3

TM-T88 Series Technical Manual

Replace

external power

supply

Yes

POWER does not turn on.

DC cable

connection OK?

Yes

Correctly connect DC cable.

Operation OK?

External power

supply output

voltage OK? (24v

DC with no load.)

Fuse F1 conducting?

Operation OK?

Replace fuse F1.

Yes

POWER LED

conducting?

Yes

Operation OK?

Yes

Replace switch circuit board unit.

Replace main circuit board

END

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 153 154

TM-T88 Series 1
SEIKO EPSON CORPORATION 4
Modular type connectors 5
FCC CLASS A 5
Introduction 6
WARNING: 7
Revision Sheet 8
Contents 9
Rev. A vii 11
Chapter 1 13
Printing Specifications 14
Character Specifications 15
Auto Cutter 15
Paper Roll Supply Device 16
Paper Specification 16
Printable Area 17
Internal Buffer 18
Electrical Specifications 18
Reliability 19
Environmental Conditions 20
Connectors 21
Power Supply Connector 22
CAUTIONS: 24
RS-232 serial interface 25
(continued) 27
Reset switching 29
Reset DC characteristics 29
Buttons and Switches 30
Panel Button 31
DIP Switches 31
Transmission speed 32
DIP switch 2 32
Print density selection 32
For parallel interface model 33
DIP switch 1 33
DIP switch 2 33
Panel LED 34
Self-test 35
Hexadecimal Dump 35
Paper Sensors 36
Standard Accessories 37
Consumables 38
Input specifications 39
Output specifications 39
Chapter 2 40
Circuit Block Diagram 41
Memory Map 42
M-T88 Printer Mechanism 43
Head holding mechanism 44
Paper feed operation 45
Thermal head 46
Paper guide 46
Frame cover 46
Main frame 46
Paper Supply Mechanism 47
Near end sensor mechanism 48
Paper end sensor mechanism 48
Photosensor 49
Shield plate 49
Main frame (bottom) 49
Data input and printing 50
Cutter Mechanism 51
Stationary blade mechanism 52
Movable blade mechanism 52
Auto cutter operation 53
Cutter blade knob 53
Cover Mechanism 54
Cover open sensor mechanism 55
Display Mechanism 56
Display panel 57
Switch board assembly-B 57
Push-button 57
RAM (1M bit) 60
ROM (2M or 4M bits) 61
Gate array 61
Reset circuit 63
AC_1 AC_2 Operation 64
HL Clockwise 64
L H Counterclockwise 64
H H Brake 64
Control Panel Control Circuit 65
DIP Switch Read Circuit 65
Drawer Kick Control Circuit 65
Power Supply Circuit 66
I/F Circuit Board Assembly 67
Switchboard B 67
Chapter 3 68
Printer cover 69
Control panel 69
Cutter cover 69
Cover open button 69
Loading roll paper 70
Figure 3-2 72
Detector screw 73
Detector lever 73
Other hole 73
Problem Solving 74
CAUTIONS: 75
Maintenance Procedures 76
Thermal element 77
Radiation plate 77
Print circuit board 77
Chapter 4 80
Troubleshooting Flowcharts 81
POWER does not turn on 82
PAPER OUT LED does not light 83
ERROR LED is lit 84
4 ERROR LED is flashing 85
Approx. 160 msec 88
Using This Manual 92
Roll paper cover 93
Cover-thermal-AA 93
Case-lower-AA block 94
IC cover 94
CCS-tite M3x8 94
Cover-cutter-AA 96
Case-lower-AA 98
Mechanism 99
CPS-tite (O) M3x6 99
Plate-mechanism 99
CAUTION: 100
CAUTION: 102
Hook part 104
Switch circuit board 106
CBS-tite 106
Cover-frame assembly block 107
Auto cutter unit block 108
Paper guide unit block 111
Cable of pape 112
Lever-cover open 114
Tabs on frame assembly 116
Groove of thermal head 116
Motor-paper feed-receipt 117
Frame assembly 118
Motor (+) Terminal Red 122
Motor (-) Terminal Black 122
Microswitch Terminal White 122
Appendix 127
Reverse mode 128
Printer status and signals 129
RS-485 Serial Interface 131
Appendix A-8 Rev. A 134
XON/XOFF Transmit Timing 135
Data Format When Using RS-485 135
Printer reception data level 136
Rev. A Appendix A-11 137
Appendix A-12 Rev. A 138
Rev. A Appendix A-13 139
Appendix A-14 Rev. A 140
Rev. A Appendix A-15 141
Appendix A-16 Rev. A 142
Rev. A Appendix A-17 143
Case Unit Parts Name List 144
Rev. A Appendix A-19 145
Appendix A-20 Rev. A 146
Overall Exploded Diagram 147
Rev. A A-22 148
M-T88 Printer Mechamism 148
Lubrication Points Diagram 149
Circuit Board Diagram 150
RS-232 Interface Board 151
IEEE 1284 Interface 152
RS-485 Interface Board 153
Rev. A A-28 154

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Epson TM-T88II Series Manual de instrucciones Pagina 82

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