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Custom Audio Electronics MT558 User Manual

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USER MANUAL
MT558
MT558

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Summary of Contents for Custom Audio Electronics MT558

  • Page 1 USER MANUAL MT558 MT558...
  • Page 2 All rights reserved. Total or partial reproduction of this manual in whatever form, whether by printed or elec- tronic means, is forbidden. While guaranteeing that the information contained in it has been carefully checked, CUSTOM ENGINEERING SPA and other entities utilized in the realization of this manual bear no responsibility for how the manual is used.

  • Page 3: Table Of Contents

    1.3 Print head speci cations ..........................5 2 INSTALLATION AND USE ............................7 2.1 Front exterior view of MT558 ..........................7 2.2 Front exterior view of MT558-0101 (model with at cable) ................8 3 CONNECTIONS ............................... 9 3.1 Connections terminals ............................9 3.1.1 Thermal head connector of MT558 model ....................
  • Page 4 TABLE OF CONTENTS 4 MT558 User Manual...

  • Page 5: Introduction

    PAPER FEED METHOD Friction feed, 1 dot line/2 pulses, bipolar 1-2 phase excitation HEAD TEMPERATURE SENSOR Thermistor PAPER DETECTION Photo interrupter refl essive MAXIMUM NUMBER OF DOTS ACTIVATED AT A TIME DOT RESISTANCE (RAV) 120 Ω MT558 5 User Manual...
  • Page 6 SUPPLY VOLTAGE = 3 ÷ 5,5 V SUBSTRATE TEMPERATURE 65 °C ENVIRONMENT OPERATING TEMPERATURE RANGE 5 ÷ 50°C OPERATING HUMIDITY 10 ÷ 90 % RH no condensation ENVIRONMENT STORAGE TEMPERATURE (EXCEPT PAPER) -25 ÷ 70 °C 6 MT558 User Manual...

  • Page 7: Installation And Use

    2. INSTALLATION AND USE 2 INSTALLATION AND USE 2.1 Front exterior view of MT558 Motor Print Head Head up lever Sensor Head up detection Print Head cable Knob paper feed A- Paper outfeed B- Paper input C- Paper end sensor...

  • Page 8: Front Exterior View Of Mt558-0101 (Model With At Cable)

    2. INSTALLATION AND USE 2.2 Front exterior view of MT558-0101 (model with fl at cable) Motor Print Head Head up lever Sensor Head up detection Print Head cable Knob paper feed A- Paper outfeed B- Paper input C- Paper end sensor...

  • Page 9: Connections

    Pin No. TYPE Connector for FFC (pitch 1.25mm) such as Thermal head connector molex connector series 5597(tick 0.3mm) of MT558 model part no.39-51-3284 or equivalent. Connector for FFC (pitch 1.25mm) such as Thermal head connector molex connector series 5597(tick 0.3mm) of MT558-0101 model part no.39-51-3284 or equivalent.

  • Page 10: Thermal Head Connector Of Mt558 Model

    3. CONNECTIONS 3.1.1 Thermal head connector of MT558 model The connector’s pin assignments is as follows: SIGNAL FUNCTION SIGNAL FUNCTION Not connected STB2 Strobe2 signal (Active low) Not connected STB3 Strobe3 signal (Active low) Ground STB4 Strobe4 signal (Active low)

  • Page 11: Motor/ Paper-End Sensor Connector

    Switch signal 2 of head-up sensor output Connector type: Molex connector female housing 51021-1000 3.1.4 Electrical circuit block diagrams of motor and paper-end sensor MOTA+ MOTA- MOTB+ Motor MOTB- MOTOR PAPER END SENSOR AND HEAD-UP SENSOR MT558 11 User Manual...
  • Page 12 3. CONNECTIONS 12 MT558 User Manual...

  • Page 13: Print Head

    4 PRINT HEAD MT558 has a thickfi lm thermal printhead and is allowed to have 5.0 A maximum power absorbed, the print density variation may become larger if the number of dots energized at same time becomes greater than 64.

  • Page 14: Block Diagram Of The Electrical Circuit Of Mt558 Model

    4. PRINT HEAD 4.2 Block diagram of the electrical circuit of MT558 model DOT #384 DOT #1 6, 7, 8, 26, 27, 28 3, 4, 5, 23, 24, 25 STB6 STB5 STB4 STB3 STB2 STB1 LATCH REGISTER SHIFT REGISTER 21, 22...

  • Page 15: Block Diagram Of The Electrical Circuit Of Mt558-0101 Model

    4. PRINT HEAD 4.3 Block diagram of the electrical circuit of MT558-0101 model DOT #384 DOT #1 1, 2, 3, 26, 27, 28 13, 14, 15, 16, 17, 18 STB6 STB5 STB4 STB3 STB2 STB1 LATCH REGISTER SHIFT REGISTER 19, 20, 24 THERMISTOR 30KΩ...

  • Page 16: Printing Data And Printing Position

    VIL = 0V VIH = 5V High μA VDD = 5V Latch input current (LAT) VDD = 5V μA VIL = 0V Note: Only for MT558-0101 model Each strobe includes pull-down resistance of 300KΩ ± 50% per IC. 16 MT558 User Manual...

  • Page 17: Switching Characteristics Of Circuit

    DI Latch width tw LAT Latch set-up time t setup LAT Driver out delay time μs 4.7 Timing chart of MT558 model Tw CLK CLOCK (CLK) t setup DI t hold DI DATA IN (DI) High: BLACK Low: WHITE...

  • Page 18: Timing Chart Of Mt558-0101 Model

    4. PRINT HEAD 4.8 Timing chart of MT558-0101 model Tw CLK CLOCK (CLK) t setup DI t hold DI DATA IN (DI) High: BLACK Low: WHITE DATA OUT (DO) High: BLACK Low: WHITE t setup LAT LATCH (LAT) High : HOLD...

  • Page 19: Thermistor

    Then the resistance value, R, versus temperature , T (in °C) is given by the formula: R(T) = R25 × e { B × (1/TX – 1/T25) } 4.9.1 Thermistore Curves T E M P E R AT U R E : ( ° C ) MT558 19 User Manual...
  • Page 20 4. PRINT HEAD 20 MT558 User Manual...

  • Page 21: Stepper Motor

    The motor is driven in the forward direction if its excitation phases are switched as per the following steps: 1 dot line SIGNAL SEQUENCE STEP1 STEP2 STEP3 STEP4 PH2B PH1B PH1A PH2A Step1 (PH2B) High High Step2 High High Step3 High High (PH1B) Step4 High High (PH1A) (PH2A) Excitation Voltage Waveforms MT558 21 User Manual...

  • Page 22: Precaution

    Please check the ratio print/pause to prevent the overtemperature on stepper motor. If the motor is driven by more than 5 volts we suggest to use a chopper driving, in order to reduce current, please contact CUSTOM ENGINEERING SPA for further information. 22 MT558 User Manual...

  • Page 23: Sensor

    Light current = 5 V, = 10 mA μA Leakage current = 5 V, IF = 10 mA μA LEAK Rise time μs Switching = 2 V, = 0.1 mA speeds = 1 KΩ Fall time μs MT558 23 User Manual...

  • Page 24: Graphics Of Typical Characteristics

    6. SENSOR 6.1 Graphics of typical characteristics Collector Power dissipation vs. Ambient Temperature Forward Current vs. Forward Voltage 24 MT558 User Manual...
  • Page 25 6. SENSOR Light Current vs. Forward Current Light Current vs. Collector-Emitter Voltage 90% Reflective paper MT558 25 User Manual...
  • Page 26 6. SENSOR Relative light current vs Ambient temperature Dark current vs Ambient temperature 26 MT558 User Manual...
  • Page 27 6. SENSOR Switching time vs Load resistance Relative light current vs Moving distance MT558 27 User Manual...
  • Page 28 6. SENSOR 28 MT558 User Manual...

  • Page 29: Dimensions

    7. DIMENSIONS 7 DIMENSIONS 7.1 DIMENSIONS OF MT558 MODEL The fi gure illustrates the overall dimensions for the MT558 thermal printing mechanism. (Dimensions in mm) 58,3 20,18 36,25 13,3 73,05 84,55 MT558 29 User Manual...

  • Page 30: Dimensions Of Mt558-0101

    7. DIMENSIONS 7.2 DIMENSIONS OF MT558-0101 The fi gure illustrates the overall dimensions for the MT558-0101 thermal printing mechanism. (Dimensions in mm) 58,3 20,18 36,25 13,3 73,05 84,55 30 MT558 User Manual...
  • Page 32 CUSTOM ENGINEERING SPA World Headquarters Via Berettine, 2 - 43010 Fontevivo, Parma ITALY Tel. +39 0521 680111 - Fax +39 0521 610701 info@custom.biz - www.custom.biz All rigths reserved www.custom.biz...

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