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LTPD247B-432-E
Seiko LTPD247B-432-E Thermal Printer Manuals
Manuals and User Guides for Seiko LTPD247B-432-E Thermal Printer. We have
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Seiko LTPD247B-432-E Thermal Printer manual available for free PDF download: Technical Reference
Seiko LTPD247B-432-E Technical Reference (78 pages)
THERMAL PRINTER MECHANISM
Brand:
Seiko
| Category:
Printer
| Size: 0.96 MB
Table of Contents
Table of Contents
4
Safety Precautions
9
Design and Handling Precautions
10
Design Precautions
10
Handling Precautions
12
Precautions on Discarding
13
Features
14
Chapter3 Specifications
15
General Specifications
15
Table 3-1 General Specifications
15
Heat Element Dimensions
17
Figure 3-1 Heat Element Dimensions
17
Figure 3-2 Print Area
17
Step Motor
18
General Specifications
18
Table 3-2 General Specifications of the Step Motor
18
Sample Drive Circuit
19
Figure 3-3 Sample Drive Circuit
19
Figure 3-4 Sample Drive Circuit (LTPD347)
19
Excitation Sequence
20
Table 3-3 Excitation Sequence
20
Figure 3-5 Input Voltage Waveforms for the Sample Drive Circuit
20
Motor Start/Stop Method
21
Figure 3-6 Motor Start/Stop Timing Chart
21
Motor Drive Method
22
Table 3-4 Acceleration Steps(Ltpd247
24
Table 3-5 Acceleration Steps(Ltpd347
26
Table 3-6 Maximum Drive Time and Drive Ratio
28
Motor Drive Precautions
29
Thermal Head
30
Structure of the Thermal Head
30
Figure 3-7 Thermal Head Block Diagram(LTPD247)
30
Print Position of the Data
31
Table 3-7 DST Blocks and Activated Heating Elements(LTPD247)
31
Table 3-8 DST Blocks and Activated Heating Elements(LTPD347)
31
Figure 3-8 Print Position of the Data(LTPD247)
31
Electrical Characteristics of Thermal Head
32
Table 3-9 Electrical Characteristics of Thermal Head(LTPD247)
32
Timing Chart
33
Thermal Head Heat Element Resistance
33
Table 3-10 Electrical Characteristics of Thermal Head(LTPD347)
33
Figure 3-9 Thermal Head Drive Timing Chart
34
Maximum Current Consumption
35
Controlling the Activation Pulse Width for Thermal Head
36
Calculation of Activation Pulse Width
36
Calculation of Printing Energy
37
Table 3-12 Standard Printing Energy and Temperature Coefficient
37
Adjustment of Thermal Head Resistance
39
Adjustment of Thermal Head Drive Voltage
39
Setting of Activation Pause Time
39
Adjustment by Thermal Head Activation Pulse Cycle
40
Calculation Sample for the Activation Pulse Width
41
Temperature Characteristics of Thermistor
42
Figure 3-10 Thermistor Resistance Vs. Temperature
42
Detecting Abnormal Temperature of the Thermal Head
44
Out-Of-Paper Sensor
45
Figure 3-11 Sample External Circuit of the Out-Of-Paper Sensor
45
Platen Position Sensor
46
General Specifications
46
Platen Position Sensor Precautions
46
Figure 3-12 Sample External Circuit of the Platen Position Sensor
46
Chapter4 Connecting Terminals
47
Recommended Connector for External Circuits
47
Connecting Terminals
47
Table 4-1 Recommended Connectors
47
Figure 4-1 Connecting Terminals
47
Table 4-2 Terminal Assignments of the Connecting Terminal(Ltpd247
48
Table 4-3 Terminal Assignments of the Connecting Terminal(Ltpd347
50
Chapter5 Print Drive Method
52
Motor and Thermal Head Drive Method
52
Figure 5-2 Timing Chart for Driving Using One Division (LTPD247)
53
Thermal Head Division Drive Method
54
Precautions for Print Drive
55
Chapter6 Outer Case Design Guide
56
Securing the Printer Main Body
56
How to Mount the Printer Main Body
56
Figure 6-1 Dimensions for Positioning and Securing the Printer Main Body (LTPD247A)
57
Figure 6-2 Dimensions for Positioning and Securing the Printer Main Body (LTPD247B)
57
Figure 6-3 Dimensions for Positioning and Securing the Printer Main Body (LTPD347A)
58
Figure 6-4 Dimensions for Positioning and Securing the Printer Main Body (LTPD347B)
58
Recommended Screws
59
Precautions for Securing the Printer Main Body
59
Securing the Platen Block
60
How to Mount the Platen Block
60
Table 6-1 Allowable Dimensions
60
Figure 6-5 Dimensions for Positioning and Securing the Platen Block
60
Recommended Screw
61
Precautions for Securing the Platen Block
61
Connect the Printer to Frame Ground (Fg)
62
How to Connect the Printer to Frame Ground (FG)
62
Design the Platen Release Lever
63
Figure 6-6 External Dimensions and Motion of the Platen Release Lever
63
Layout of the Printer and Paper
64
Figure 6-7 Recommended Layout between the Printer and the Paper
64
Where to Mount the Paper Holder
65
Figure 6-8 Recommended Paper Holder Dimensions
65
Design Paper Exit
66
Design the Shape of the Paper Exit
66
Figure 6-9 Paper Path
66
Design the Paper Cutter
67
Figure 6-10 Blade Edge
67
Precautions for Designing the Outer Case
68
Chapter7 External Dimensions
69
Figure 7-1 External Dimensions of the Platen Block (LTPD247)
70
Figure 7-2 External Dimensions of the Printer (LTPD247A)
71
Figure 7-3 External Dimensions of the Printer (LTPD247B)
72
Figure 7-4 External Dimensions of the Platen Block (LTPD347)
73
Figure 7-5 External Dimensions of the Printer (LTPD347A)
74
Figure 7-6 External Dimensions of the Printer (LTPD347B)
75
Chapter8 Handling Method
76
Procedures for Installing/Uninstalling the Thermal Paper
76
Figure 8-1 Loading the Thermal Paper (1)
76
Precautions for Installing the Thermal Paper
77
Figure 8-2 Loading the Thermal Paper (2)
77
Precautions for Cleaning the Thermal Head
78
Procedures for Cleaning the Thermal Head
78
Figure 8-3 Cleaning Position of the Thermal Head
78
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