Seiko LTPD345E Manuals

Manuals and User Guides for Seiko LTPD345E. We have 1 Seiko LTPD345E manual available for free PDF download: Technical Reference

Seiko LTPD345E Technical Reference (72 pages)

THERMAL PRINTER MECHANISM

Brand: Seiko | Category: Printer | Size: 1 MB

Table of Contents
4
Safety Precautions
10
Design and Handling Precautions
11
Design Precautions
11
Handling Precautions
12
Precautions on Discarding
13
Features
14
Specifications
15
General Specifications
15
Heat Element Dimensions
17
Heat Element Dimensions (LTPD245E)
17
Print Area (LTPD245 E)
18
Heat Element Dimensions (LTPD345E)
19
Print Area (LTPD345E)
20
Step Motor
21
General Specifications
21
General Specifications of the Step Motor
21
Sample Drive Circuit
22
Excitation Sequence
23
Input Voltage Waveforms for the Sample Drive Circuit
23
Motor Start/Stop Method
24
Motor Start/Stop Timing Chart
24
Motor Drive Method
25
Maximum Motor Drive Pulse Rate
25
Maximum Drive Time and Drive Ratio
29
Motor Drive Precautions
30
Thermal Head
31
Structure of the the Thermal Head
31
Thermal Head Block Diagram (LTPD245E)
31
Print Position of the Data
32
Print Position of the Data (LTPD245E)
32
DST Blocks and Activated Heat Elements (LTPD245E)
32
DST Blocks and Activated Heat Elements (LTPD345E)
32
Electrical Characteristics of Thermal Head
33
Electrical Characteristics of Thermal Head (LTPD245E)
33
Electrical Characteristics of Thermal Head (LTPD345E)
34
Timing Chart
35
Thermal Head Heat Element Resistance
35
Thermal Head Drive Timing Chart
35
Maximum Current Consumption
36
Controlling the Activation Pulse Width for Thermal Head
37
Calculation of Activation Pulse Width
37
Calculation of Printing Energy
37
Standard Printing Energy and Temperature Coefficient
37
Adjustment of Thermal Head Resistance
38
Adjustment of Thermal Head Drive Voltage
38
Setting of Activation Pause Time
38
Adjustment by Thermal Head Activation Pulse Period
38
Calculation Sample for the Activation Pulse Width
39
Activation Pulse Width
39
Temperature Characteristics of Thermistor
41
Temperature Characteristics
42
Detecting Abnormal Temperature of the Thermal Head
43
Out-Of-Paper Sensor
44
Sample External Circuit of the Out-Of-Paper Sensor
44
Platen Position Sensor
45
General Specifications
45
Platen Position Sensor Precautions
45
Sample External Circuit of the Platen Position Sensor
45
General Specifications of Platen Position Sensor
45
Connecting Terminals
46
Recommended Connector for External Circuits
46
Recommended Connectors
46
Terminal Assignments of the Connecting Terminal (LTPD245E)
47
Terminal Assignments of the Connecting Terminal (LTPD345E)
49
Print Drive Method
51
Motor and Thermal Head Drive Method
51
Timing Chart for Driving Using Six Divisions (LTPD245E)
52
Timing Chart for Driving Using One Division (LTPD245E)
52
Thermal Head Division Drive Method
54
Precautions for Print Drive
55
Outer Case Design Guide
56
Securing the Printer Main Body
56
How to Mount the Printer Main Body
56
Dimensions for Positioning and Securing the Printer Main Body (LTPD245E)
57
Recommended Screws
58
Precautions for Securing the Printer Main Body
58
Connect the Printer to Frame Ground (Fg)
59
How to Connect the Printer to Frame Groung (FG)
59
Design the Platen Release Lever
60
Layout of the Printer and Thermal Paper
61
Recommended Layout between the Printer and the Thermal Paper
61
Where to Mount the Paper Holder
62
Recommended Paper Holder Dimensions
62
Recommended Separator (LTPD245E)
63
Recommended Separator (LTPD345E)
63
Design Paper Exit
64
Design the Shape of the Paper Exit
64
Paper Path
64
Design the Paper Cutter
65
Blade Edge
65
Precautions for Designing the Outer Case
66
External Dimensions
67
External Dimensions of the Printer (LTPD245E)
68
External Dimensions of the Printer (LTPD345E)
69
Handling Method
70
Procedures for Installing/Uninstalling Thermal Paper
70
Procedures for Installing/Uninstalling the Thermal Paper
70
Thermal Paper Edge
70
Releasing the Platen Block
71
Procedures for Cleaning the Thermal Head
72
Precautions for Cleaning the Thermal Head
72
Cleaning Position of the Thermal Head
72

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