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Custom Audio Electronics MT558, User Manual

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Custom Audio Electronics MT558 User Manual Download Page 14

4.2 Block diagram of the electrical circuit of MT558 model

THERMISTOR
30K

Ω

   B:3950

6, 7, 8, 26, 27, 28

DOT #384

DOT #1

3, 4, 5, 23, 24, 25

16

14

13

20

12

10

11

VH

GND

TM

TM

CLK

DI

LAT

STB1

STB3

21, 22

VCC

1

2

6

5

4

3

LATCH REGISTER

SHIFT REGISTER

1, 2

NC

DO

9

15

STB2

19

17

STB4

STB6

18

STB5

STB No.

Dot No.

Dots/STB

1

1 ~ 64

64

2

65 ~ 128

64

3

129 ~ 192

64

4

193 ~ 256

64

5

257 ~ 320

64

6

321 ~ 384

64

4. PRINT HEAD

14  MT558  

User Manual

Summary of Contents for MT558

Page 1: ...OEM MT558 MT558 USER MANUAL ...

Page 2: ...the manual is used Information regarding any errors found in it or suggestions on how it could be improved are appreciated Since products are subject to continuous check and improvement CUSTOM ENGINEERING SPA reserves the right to make changes in information contained in this manual without prior notification Copyright 2002 CUSTOM ENGINEERING S p a Italy CUSTOM ENGINEERING S p A Str Berettine 2 43...

Page 3: ...11 4 PRINT HEAD 13 4 1 Operation precautions 13 4 2 Block diagram of the electrical circuit of MT558 model 14 4 3 Block diagram of the electrical circuit of MT558 0101 model 15 4 4 Printing data and printing position 16 4 5 Electrical characteristics of circuit 16 4 6 Switching characteristics of circuit 17 4 7 Timing chart of MT558 model 17 4 8 Timing chart of MT558 0101 model 18 4 9 Thermistor 1...

Page 4: ...TABLE OF CONTENTS 4 MT558 User Manual ...

Page 5: ...nism as this could cause a short circuit or damage parts that could jeopardize mechanism functioning Do not spill liquids onto the mechanism Do not carry out technical operations on the mechanism with the exception of the scheduled maintenance pro cedures specifically indicated in the user manual 1 2 General features PAPER WIDTH 58 mm RESOLUTIONS 8 dot mm 203dpi PRINTING SPEED 65 mm sec LOGIC VOLT...

Page 6: ...1 9 A Head with 64 dots on made simultaneously 420 mA Stepper motor 48 mA Logic current ABSORPTION Average 100 dots on 2 4 A Peak 100 dots on 3 2 A LIFE REABILITY 50 Km 1 x 108 pulse RECOMMENDED PAPER WEIGTH 55 g m2 RECOMMENDED PAPER KF 50HDA or equivalent HEAD VOLTAGE VH 8 5 V SUPPLY VOLTAGE VDD 3 5 5 V SUBSTRATE TEMPERATURE 65 C ENVIRONMENT OPERATING TEMPERATURE RANGE 5 50 C OPERATING HUMIDITY 1...

Page 7: ... exterior view of MT558 Motor 1 Print Head 2 Head up lever 3 Sensor Head up detection 4 Print Head cable 5 Knob paper feed 6 A Paper outfeed B Paper input C Paper end sensor 1 2 5 4 3 6 B C A 2 INSTALLATION AND USE User Manual MT558 7 ...

Page 8: ...101 model with flat cable Motor 1 Print Head 2 Head up lever 3 Sensor Head up detection 4 Print Head cable 5 Knob paper feed 6 A Paper outfeed B Paper input C Paper end sensor B C A 1 2 5 4 3 6 2 INSTALLATION AND USE 8 MT558 User Manual ...

Page 9: ...tor specifications and functions No Connector Pin No TYPE 1 Thermal head connector of MT558 model 28 Connector for FFC pitch 1 25mm such as molex connector series 5597 tick 0 3mm part no 39 51 3284 or equivalent Thermal head connector of MT558 0101 model 28 Connector for FFC pitch 1 25mm such as molex connector series 5597 tick 0 3mm part no 39 51 3284 or equivalent 2 Head up sensor 10 Molex conne...

Page 10: ...alent NOTE The symbol means a negative logical signal 3 1 2 Thermal head connector of MT558 0101 model The connector s pin assignments is as follows No SIGNAL FUNCTION No SIGNAL FUNCTION 1 VH Head power supply 15 P GND Power ground 2 VH Head power supply 16 P GND Power ground 3 VH Head power supply 17 P GND Power ground 4 DO Data output 18 L GND Logic ground 5 LAT Latch Active low signal 19 NC Not...

Page 11: ...Anode paper 8 K LED Cathode paper 9 SW1 Switch signal 1 of head up sensor output 10 SW2 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 1 3 2 4 5 6 8 7 9 10 MOTA Motor A B MOTA MOTB MOTB 7 C E A 1 2 3 4 5 6 8 9 10 SW1 SW2 K MOTOR PAPER END SENSOR AND HEAD UP SENSOR 3 CONNECTIONS ...

Page 12: ...3 CONNECTIONS 12 MT558 User Manual ...

Page 13: ...scribed 3 in note 2 shall be kept Heat elements and IC s shall be anti electrostatic in order to prevent the electrostatic destruction Do not touch 4 the connector pins with naked hands The printhead substrate surface is coated with glass and mechanical stress or shock including dust scratch dam 5 age should be avoided to prevent damage When the printhead operation is finished printsupply voltage ...

Page 14: ...4 DOT 1 3 4 5 23 24 25 16 14 13 20 12 10 11 VH GND TM TM CLK DI LAT STB1 STB3 21 22 VCC 1 2 6 5 4 3 LATCH REGISTER SHIFT REGISTER 1 2 NC DO 9 15 STB2 19 17 STB4 STB6 18 STB5 STB No Dot No Dots STB 1 1 64 64 2 65 128 64 3 129 192 64 4 193 256 64 5 257 320 64 6 321 384 64 4 PRINT HEAD 14 MT558 User Manual ...

Page 15: ... 18 10 8 5 25 6 11 12 VH GND TM TM CLK DI LAT STB1 STB3 7 VDD 1 2 6 5 4 3 LATCH REGISTER SHIFT REGISTER 19 20 24 NC DO 4 9 STB2 23 21 STB4 STB6 22 STB5 Each STB Line is pulled down within the driver IC STB No Dot No Dots STB 1 1 64 64 2 65 128 64 3 129 192 64 4 193 256 64 5 257 320 64 6 321 384 64 4 PRINT HEAD User Manual MT558 15 ...

Page 16: ...Logic supply current IDD 9 6 30 mA fCLK 5MHz SI fCLK 2 Input Voltage High VIH 0 7 x VDD VDD V STB DI LAT CLK Low VIL 0 3 x VDD V Data input current DI High 1 IIH DI 0 5 μA VIH 5V VDD 5V Low IIL DI 0 5 μA VDD 5V VIL 0V STB input current STB High 1 IIH STB 55 μA VIH 5V VDD 5V Low IIL STB 0 5 μA VDD 5V VIL 0V Clock input current CLK High 1 IIH CLK 3 μA VIH 5V VDD 5V Low IIL CLK 3 μA VDD 5V VIL 0V Lat...

Page 17: ...ta hold time t hold DI 40 ns Latch width tw LAT 100 ns Latch set up time t setup LAT 100 ns Driver out delay time tdo 26 μs 4 7 Timing chart of MT558 model CLOCK CLK LATCH LAT High HOLD Low THROUGH DRIVER OUT STROBE STB DATA OUT DO High BLACK Low WHITE DATA IN DI High BLACK Low WHITE Tw CLK t setup DI t hold DI tw LAT tdo tdo t setup LAT NOTES The symbol means a negative logical signal 4 PRINT HEA...

Page 18: ...H LAT High HOLD Low THROUGH DRIVER OUT STROBE STB DATA OUT DO High BLACK Low WHITE DATA IN DI High BLACK Low WHITE Tw CLK t setup DI t hold DI tw LAT tdo tdo t setup LAT NOTES The symbol means a negative logical signal 4 PRINT HEAD 18 MT558 User Manual ...

Page 19: ...t described in the Maximum conditions table Resistance R25 30 KΩ 5 at 25 C B value 3950 K 2 Operating temperature 20 80 C Time costant Max 30 sec in the air 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 0 180 140 TEMPERATURE C R E S I S TA N C E K Ω 0 20 30 40 50 70 20 100 20 80 40 60 120 160 10 10 60 4 PRINT HEAD User...

Page 20: ...4 PRINT HEAD 20 MT558 User Manual ...

Page 21: ...ue 20 gf cm MIN at 900 pps 7 2 Vdc Insulation resistance 30 MΩ MIN 500 Vdc Insulation class Class E Dielectric strength 3 mA at 500V AC 1 0 sec Life 500 Hr 5 2 Excitation sequence The motor is driven in the forward direction if its excitation phases are switched as per the following steps PH2B PH1B PH1A PH2A H L H L H L H L STEP1 STEP2 STEP3 STEP4 1 dot line Excitation Voltage Waveforms SEQUENCE S...

Page 22: ...driver 1 lose voltage VCEsat 2 Please check the ratio print pause to prevent the overtemperature on stepper motor 2 If the motor is driven by more than 5 volts we suggest to use a chopper driving in order to reduce current please 3 contact CUSTOM ENGINEERING SPA for further information 5 STEPPER MOTOR 22 MT558 User Manual ...

Page 23: ...mperature range TSTG 30 100 C 1 Note Pulse width 100 μs Repetitive frequency 100 Hz Opto electrical characteristics Ta 25 C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Input Forward voltage VF IF 10 mA 1 3 V Reverse current IR VR 5 V 10 μA Peak emission wavelength λP IF 10 mA 940 nm Output Collector dark current ICEO VCE 10 V 0 2 μA Peak sensibility wavelength λP 900 nm Light current IL VCE 5 V I...

Page 24: ...6 1 Graphics of typical characteristics Collector Power dissipation vs Ambient Temperature Forward Current vs Forward Voltage 6 SENSOR 24 MT558 User Manual ...

Page 25: ...Light Current vs Forward Current Light Current vs Collector Emitter Voltage 90 Reflective paper 6 SENSOR User Manual MT558 25 ...

Page 26: ...Relative light current vs Ambient temperature Dark current vs Ambient temperature 6 SENSOR 26 MT558 User Manual ...

Page 27: ...Switching time vs Load resistance Relative light current vs Moving distance 6 SENSOR User Manual MT558 27 ...

Page 28: ...6 SENSOR 28 MT558 User Manual ...

Page 29: ... DIMENSIONS OF MT558 MODEL The figure illustrates the overall dimensions for the MT558 thermal printing mechanism Dimensions in mm 73 05 50 13 3 38 44 25 58 3 3 8 36 25 20 18 84 55 20 7 DIMENSIONS User Manual MT558 29 ...

Page 30: ...ONS OF MT558 0101 The figure illustrates the overall dimensions for the MT558 0101 thermal printing mechanism Dimensions in mm 73 05 50 13 3 38 44 25 58 3 3 8 36 25 20 18 84 55 20 7 DIMENSIONS 30 MT558 User Manual ...

Page 31: ......

Page 32: ...r DOME MT558 Rev 1 50 www custom biz 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 ...

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