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LTP F SERIES
LINE THERMAL PRINTER MECHANISM
TECHNICAL REFERENCE
U00060419201
Seiko Instruments Inc.
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LTP F SERIES LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE Document Number U00060419201 First Edition August 2001 Second Edition February 2002 Copyright © 2001, 2002 by Seiko Instruments Inc. All rights reserved. Seiko Instruments Inc. (SII) has prepared this manual for use by SII personnel, licensees, and customers. The information contained herein is the property of SII and shall not be reproduced in whole or in part without the prior written approval of SII. SII reserves the right to mak
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PREFACE This reference manual describes the specifications and basic operating procedures for the LTP F Series Thermal Printer Mechanism (hereinafter referred to as “printer”). The LTP F series has the following two types of printers that are classified by their paper width. LTPF247A-C432 LTPF347A-C576 This manual usually describes information common to any printer, and each information with the name if information is different. Chapter 1 “Precautions” describes safety, design and operational pr
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TABLE OF CONTENTS Section Page CHAPTER 1 PRECAUTIONS 1.1 SAFETY PRECAUTIONS ..................................................................................................... 1-1 1.2 DESIGN AND HANDLING PRECAUTIONS ......................................................................... 1-2 1.2.1 Design Precautions .................................................................................................. 1-2 1.2.2 Handling Precautions ................................................
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Section Page 3.7 PAPER DETECTOR ........................................................................................................... 3-29 3.7.1 General Specifications ........................................................................................... 3-29 3.7.2 Sample External Circuit.......................................................................................... 3-30 3.8 PLATEN POSITION DETECTOR ...........................................................................
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Section Page CHAPTER 9 PERIPHERALS 9.1 AUTOCUTTER UNIT ............................................................................................................ 9-1 9.1.1 Installation Method ................................................................................................... 9-2 9.1.2 Clearing a Paper Jam in the Autocutter ................................................................... 9-4 9.1.3 Consideration for Outer Case Design ..........................................
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FIGURES Figure Page 3-1 Heat Element Dimensions (LTPF247) .................................................................................. 3-3 3-2 Print Area (LTPF247) ............................................................................................................ 3-3 3-3 Heat Element Dimensions (LTPF347) .................................................................................. 3-4 3-4 Print Area (LTPF347) ...................................................................
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TABLES Table Page 3-1 General Specifications .......................................................................................................... 3-1 3-2 General Motor Specifications ................................................................................................ 3-6 3-3 Excitation Sequence.............................................................................................................. 3-8 3-4 Acceleration Steps..................................................
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CHAPTER 1 PRECAUTIONS Read through this manual to design and operate the printer properly. Pay special attention to the precautions noted in each section. 1.1 SAFETY PRECAUTIONS Follow these precautions when designing a product using the printer, and include any necessary precautions and warning labels to ensure the safe operation of your product by users. Preventing the thermal head from overheating When electricity is continuously supplied to the thermal head heat element by a CPU or other ma
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1.2 DESIGN AND HANDLING PRECAUTIONS To maintain the initial level of performance of the printer and to prevent future problems from occurring, observe the following precautions. 1.2.1 Design Precautions Design precautions If too much energy is applied to the thermal head, it may overheat and become damaged. Always use the printer with the specified amount of energy. The current capacity of the thermal head is 13.6A. Design the circuit so that the average current does not exceed this value. (
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Always close the platen and feed the paper at 16 dots or more per line when printing is in a standby state. The elastic deformation of the platen roller rubber will be retreated. Mechanism precautions Apply power in the following manner: When turning the power ON: 1) Vdd (5 V) → 2) Vp (24 V) At shut down: 1) Vp (24 V) → 2) Vdd (5 V) Cut surfaces of metallic parts may become discolored and rusted due to the operational environment. Consider these factors regarding appearance. Do not apply a
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Printing and paper feeding precautions Make sure that variation in the motor drive frequency does not lead to noise or a loss of paper feed force before making designs. Design the outer case to prevent the paper feed out from being caught in the platen. When or after printing or paper feed has been suspended, if data is input or printing restarts, paper feed may not be performed properly for several dot lines just after printing starts. This problem is more likely to occur when printing bit
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1.2.2 Handling Precautions Incorrect handling may reduce the efficiency of the printer and cause damage. Handle the printer with the following precautions. Also, include any necessary precautions so that users handle the printer with care. To prevent the heat elements, ICs, etc. from static electricity, discharge all static electricity before handling the printer. Pay special attention to the thermal head control terminals when handling. Do not apply stress to the thermal head control termina
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1.2.3 Precautions on Discarding When discarding used printers, discard them according to the disposal regulations and rules of each respective district. 1-6
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CHAPTER 2 FEATURES The LTP F Series Line Thermal Printer Mechanism is a compact, super high-speed thermal line dot printing mechanism. It can be used with a measuring instrument and analyzer, a POS, a communication device, or a data terminal device. The LTP F Series has the following features: ∗1 Super high speed printing A maximum print speed of 1760 dot lines per second (220 mm per second) is attainable for the LTP F series printer mechanism. Easy loading of printing paper An easy loading
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CHAPTER 3 SPECIFICATIONS 3.1 GENERAL SPECIFICATIONS Table 3-1 General Specifications Item Specification LTPF247 LTPF347 Print method Thermal dot line printing Dots per line 448 dots 640 dots Printable dots per line 432 dots 576 dots Simultaneously activatable dots 248 dots 352 dots per line Resolution 8 dots/mm ∗1 Maximum print speed 220 mm/sec Print width 54 mm 72 mm Paper width 58 mm 80 mm Paper feed pitch 0.125 mm Head temperature detection Via a thermistor Platen position detection Via a me
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Table 3-1 General Specifications (Continued) Specification Item LTPF247 LTPF347 Life span (at 25 °C and rated energy) ∗4 Activation pulse resistance 100 million pulses or more Abrasion resistance 100 km or more (excluding damage caused by dust and foreign materials) Paper feed force 0.98N (100 gf) or more Paper hold force 0.98N (100 gf) or more Dimensions (excluding the 86.2 × 54 × 25.8 mm 110.2 × 54 × 25.8 mm lever and convex part) (width × depth × height) Mass Approx. 150g Approx. 175g Spe
