vii
TABLES
Table
Page
2-1
General Specifications ........................................................................................................ 2-1
2-2
Sample Motor Drive Frequency........................................................................................... 2-5
2-3
General Motor Specifications .............................................................................................. 2-6
2-4
Excitation Sequence............................................................................................................ 2-8
2-5
Acceleration Steps ............................................................................................................ 2-12
2-6
Blocks and Activated Heat Element .................................................................................. 2-15
2-7
Head Resistance Ranks.................................................................................................... 2-16
2-8
Head Voltage..................................................................................................................... 2-17
2-9
Thermal Head Electrical Characteristics (at Vdd=5 V, 25
°
C). .......................................... 2-18
2-10 Activation Pulse Width....................................................................................................... 2-23
2-11 Temperature and Corresponding Thermistor Resistance................................................. 2-25
2-12 Absolute Maximum Ratings of the Paper Detector (at 25
°
C)............................................ 2-28
2-13 Paper Detector Input/Output Conditions. .......................................................................... 2-29
3-1
Recommended Connectors................................................................................................. 3-1
3-2
Thermal Head Control Terminal Assignments. .................................................................. .3-3
3-3
Terminal Assignments of the Motor/Detector Connector .................................................... 3-4
FIGURES
Figure
Page
2-1
Heat Element Dimensions................................................................................................... 2-4
2-2
Print Area............................................................................................................................. 2-4
2-3
Sample Drive Circuit (Motor) ............................................................................................... 2-7
2-4
Input Voltage Signals for the Sample Drive Circuit (Motor) ................................................ 2-8
2-5
Motor Start/Stop Timing ...................................................................................................... 2-9
2-6
Motor Drive Timing Chart .................................................................................................. 2-11
2-7
Thermal Head Block Diagram ........................................................................................... 2-14
2-8
Printed Position of the Data............................................................................................... 2-15
2-9
Timing Chart. ..................................................................................................................... 2-19
2-10 Thermistor Resistance vs. Temperature ........................................................................... 2-24
2-11 How to Drive 2-ply Thermal Paper. ................................................................................... 2-26
2-12 Sample External Circuit for the Head-Up Detector ........................................................... 2-27
2-13 Sample External Circuit of the Paper Detector. ............................................................... .2-30
2-14 Flowchart for Automatic Paper Load ................................................................................. 2-31
3-1
Thermal Head Control Terminals (FPW)............................................................................. 3-2
3-2
Terminals on the Motor/Detector Connector ....................................................................... 3-4
4-1
Example of timing chart when executing previous line history control................................ 4-2
4-2
Example of timing chart when not executing previous line history control.......................... 4-4
Содержание LTP3445
Страница 1: ...LTP3445 LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE 39019 2392 02 Seiko Instruments Inc ...
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Страница 60: ...6 1 CHAPTER 6 APPEARANCE AND DIMENSIONS Figure 6 1 shows the appearance and external dimensions of the LTP3445 ...
Страница 61: ...6 2 Figure 6 1 LTP3445 Appearance and Dimensions ...
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