THTE PRINTER MECHANISM SERIES USER MANUAL
Contents
1. Voltage 5 Volts Temperature 25 Speed 75 mm s Paper AF50KSE3 Eo saturation 0 412 mJ cf Density Sheet Tch saturation heating time 2 700 ms Temp rature statique 80 C At Nominal Voltage amp Nominal Heating Time vs Speed Temperature t2 t x a x Log tm b VE 5vot tm Time for motor step ms Temperature 25 Paper AF50KSE3 Coeff a 0 5602 Coeff b 0 0984 THTE Printer Mechanism Series User manual page 27 33 Reference FDE 3107383 Issue Z Axiohm Heating Time vs Temperature At Nominal Speed amp Nominal Voltage For linear modelisation Voltage 5 Volts Speed 75mm s 2 X cT AF50KSE3 Coeff lt c gt 0 0092 Coeff 1 2300 For polynomial modelisation 0 000005 Coeff g t3 t x gxT hT xiT J Coeff h 0 000372 Coeff i 0 016484 Coeff j 1 250000 7 2 Historical Control The Heating time table is given on next page The motor cycle time for one dot line is given in the second top line of the table it is the time for two motor steps Column 3 indicated with speed lt 16 mm s and motor cycle time gt 7 81 ms gives the required heating time giving the necessary energy to obtain an optical density of 1 2 Three areas are then defined in the heating time table Area 1 white The motor cycle time for one dot line is greater than the heating time indicated in column 3 Are2. 16 1 THTE Printer Mechanism Series User manual page 7 33 Reference FDE 3107383 Issue Z Mechanical views continued 3 4 Fixing Elements 3 5 Flex cable position 50 65 FA a T RE E e I ej lt gt OS E iq H _ Printer Mechanism Series User manual page 8 33 Reference FDE 3107383 Issue Z Axiohm 3 6 Chassis mounting Fixing holes position is shown on figure 3 2 use 3 x M2 5 self threading screws pan head eco syn length 6 mm for example from our supplier BOSSARD for the 3 diameters 22 2 0 05 3 7 Cover axis position Platen inlet outlet angle I Possible cover axis position platen axis plan dece Example 30 mm 2 Example 2 m The inlet angle for the platen axis is from 3 5 to 11 W The optimum position for setting cover axis close to the mechanism is on the platen axis plan up to 30mm W The cover axis should not be fitted above the platen axis plan Thos
3. Value Units 3 3 5 V DC 5 5 E 4 2 Nominal Consumption of printer Heating current dot Vch Logic current Vcc All high Print head Stepping motor current 2 activated phases 4 3 Description of print head Driver chips Operating range Vcc Mean dot resistance 4 Nominal dot supply voltage Nominal Heating current per dot Max number of dots to heat at once Filter any transient signal and parasitic on this line Separate Vcc from Vch because Vch can go lower than 4 75 Volts Vcc must be connected to the same power supply than the other electronic circuits which drive the printer The printing density variation may become significant when the number of dots energized simultaneously becomes greater than 64 THTE Printer Mechanism Series User manual page 11 33 Reference FDE 3107383 Issue Z 4 3 1 Function of 64 bit LSI drivers chart and operation The LSI power and multiplexing circuit drivers located on the thermal printhead provide power control from logic signals and the DC power supply voltage These circuits are supplied by 3 3 or 5 V logic voltage Take care to filter transient and parasitic on all logic lines Undetermined states can happen and destroy the head The power source should be disconnected from the logic source The logic source must be connected to the same source as the electronic circuits in charge of controlling the printer Each circuit
4. T Din 4 p serial input m am N Strobe No Ais OE 1 OEn Motor Steps T Clock frequency 8 MHz maximum Timing diagram for mode 3 THTE Printer Mechanism Series User manual page 25 33 Reference FDE 3107383 Issue Z 6 RECOMMENDATIONS 6 1 Mechanical recommendations Never apply mechanical stress to the printer this could result in misalignment and thus degradation of the print quality The thermal print head must have 1 degree of freedom Never prevent the print head from pivoting on its axis Refer to the drawings in chapters Cover axis position to design an easy loading Clamshell cover The paper should be guided to the mechanism to make sure it is centred in the mechanism paper path particularly when the paper width is less than 60mm 6 2 Electrical Recommendations The following recommendation must be followed when the heating voltage Vch is greater than 5 25 V When energising the thermal print head Vcc 5 V it is important to apply all the logic signals within 10 ms particularly to de energise all the OEs If the line of dots when Vch 2 5 25V is supplied before the control logic resistor dots may be destroyed Because the control logic has a random state resistors might be heated for a longer period than the specified maximum burning out the heated resistor To avoid this we recommend applying the heating voltage Vch after the logic supply
5. Axiohm THERMAL PRINTER COMPONENTS THTE PRINTER MECHANISM SERIES USER MANUAL Reference 3107383 Issue Z May 2004 AXIOHM 1 rue d Arcueil BP 820 92542 MONTROUGE CEDEX FRANCE Tel 33 1 58 07 17 17 Fax 33 1 58 07 17 18 www axiohm biz Axiohm EVOLUTIONS Date Issue Modifications THTE Printer Mechanism Series User manual page 1 33 Reference FDE 3107383 Issue Z This manual contains the basic instructions to run your printer Read it carefully before using your printer paying full attention to the section Recommendations THTE Printer Mechanism Series User manual page 2 33 Reference FDE 3107383 Issue Z 5 Uni edicm 5 2 OVERVIEW uma 5 3 MECHANICAL SPECIFICATIONS 7 3 1 General description ete etes eth 7 3 2 Dimensions of the complete mechanism 7 3 3 External Dimensions 7 24 FIXING Elements emeret 8 3 5 Flex cable uuu retire teintes nein orent einer ane 8 3 6 Chassis 9 3 7 Coveraxis 9 3 8
6. Opto sensor The user should be aware that the opto sensor characteristics have very wide tolerances We thus recommend the use of one of the schematics below 4 5 2 1 Opto Sensor Sample minimal external circuit VCC 5V PRINTER Y Condition Y Forlf 20mA Output signal is LOW when paper is PRESENT Vo lt 0 7V Output signal is HIGH when paper is EXHAUSTEDVo gt 3 4V 4 5 2 2 Sample external circuit with low consumption VCC 5V VCC 5V 10KQ 5 dd BC807 output port 1780 v Pulse wave from output port with low level during 0 6 ms measuring Vo 0 2 ms after pulse falling edge Same conditions for output signal Vo as chapter above THTE Printer Mechanism Series User manual page 21 33 Reference FDE 3107383 Issue Z 5 PRINTER CONTROL TECHNIQUES For printer control techniques in order to operate the printer we depict hereafter three possible modes 5 1 Mode 1 The paper feeds itself automatically during the heating cycle thereby permitting high speed to be achieved in this mode it is recommended to use historical control see chapter Heating Time Printing of n dot line Transmission of data in series Din in step with CLK Transfer to memory stage STROBE Heating controlled through OE 1 OE 2 simultaneously Transmission of next series of data End of printing THTE Printer Mecha
7. Useful distances eee 10 4 ELECTRICAL SPECIFICATIONS 11 4 1 Nominal Power supply 11 4 2 Nominal Consumption of printer 11 4 3 Description of print head 11 4 3 1 Function of 64 bit LSI drivers chart and operation 12 4 3 2 Electrical specifications of 64 BIT LSI driver 14 4 3 2 1 General electrical description of drivers 14 4 3 2 2 Other 14 4 3 2 3 Timing 15 4 3 3 Print head connection 17 44 Bipolar stepping motor 18 4 4 1 CharacterisllC8 usaq asun oreet 18 4 4 2 Motor connection 18 4 4 3 Induction sequence and timing paper 19 4 4 4 Printing mode ss 19 4 5 Sensors specifications 20 4 5 1 End of paper opto sensor 20 4 5 1 1 Electrical characteristics 20 4 5 1 2 Connection 20 4 5 2 Recommended use for 21 4 5 2 1 Opto Sensor Sample minimal external circuit 21 4 5 2 2 Sample externa
8. features 64 open collector transistors a 64 bit shift register and a 64 bit memory register Each circuit controls 64 resistor dots on the printhead Vch O 1 2 3 4 OUTPUTS 62 63 64 Line of resistor dots GND Output O Enable OE Strobe 64 bits buffer oM LLLI L pop Serial 64 bits shift zs O TLD O 11111 V O SERIAL OUTPUT SO Figure 1 driver chart THTE Printer Mechanism Series User manual page 12 33 Reference FDE 3107383 Issue Z Note see page 11 12 for the available signals the printer connection R64 R64 Resistors Resistors CHIP n 1 OUT CLK Strobe OEn OE n 1 Figure 2 Routing of data to the thermistor dots Line of dots Print head substrate BE x Data input paper path Sensitive layer Printhead bottom view chip side Thermal paper Fig 3 Dots print order The first bit of data entered will be the first bit of data printed FIFO THTE Printer Mechanism Series User manual page 13 33 Reference FDE 3107383 Issue Z 4 3 2 Electrical specifications of 64 BIT LSI driver 4 3 2 1 General electrical description of drivers Description of drivers MIN MAX UNIT Max voltage at outputs 1 to 64 Max output current Total max output current 64 dots On Max leakage current driver when stand by mode 4 3 2 2 Other The speci
9. voltage Vcc 5V The same precaution should be taken when shutting down The supply voltage Vch must be switched off before the logic supply voltage Vcc Care should be taken to allow enough time for residual capacitive charge to dissipate 6 3 Motor Driving Recommendations Motor driving can be achieved with voltage control or regulated current control When the motor is under voltage control it is recommended to connect it to the same supply as logic current from 4 5V to 5 5V If the motor is connected to the heating source power it is recommended to control it under regulated current When the control voltage is greater than 5 25 V or the current is greater than 280 mA per phase it is necessary to determine a duty cycle time max recommended 15 ton toff with a sec max to avoid the motor temperature rising This has to be achieved with the customer host chassis as the cooling depends on air volume and circulation around the motor This motor can be controlled either under voltage or current The maximum voltage is 8 5 V the maximum current is 470 mA per phase The maximum temperature on external motor frame is 80 C THTE Printer Mechanism Series User manual page 26 33 Reference FDE 3107383 Issue Z 7 7 1 Using formulas Basic Heating Time At Nominal Speed amp Nominal Temperature R Li ve E
10. 1 670 ms 4 00 Volts 5 243 ms 4 965 ms 4 719 ms 4 195 ms 3 094 ms None None 1 618 ms 4 00 Volts 4 856 ms 4 599 ms 4 371 ms 3 885 ms 2 866 ms 2 128 ms 1 976 ms 1 499 ms 4 00 Volts 4 285 ms 4 058 ms 3 857 ms 3 428 ms 2 529 ms 1 878 ms 1 744 ms 1 322 ms 5 00 Volts 4 221 ms 3 997 ms 3 799 ms 3 377 ms 2 491 ms 1 850 ms 1 718 ms 1 303 ms 5 00 Volts 3 775 ms 3 575 ms 3 398 ms 3 020 ms 2 228 ms 1 654 ms 1 536 ms 1 165 ms 5 00 Volts 3 488 ms 3 304 ms 3 140 ms 2 791 ms 2 059 ms 1 529 ms 1 420 ms 1 076 ms 5 00 Volts 3 376 ms 3 198 ms 3 039 ms 2 702 ms 1 993 ms 1 480 ms 1 374 ms 1 042 ms 5 00 Volts 3 270 ms 3 097 ms 2 944 ms 2 617 ms 1 930 ms 1 433 ms 1 331 ms 1 009 ms 5 00 Volts 3 029 ms 2 869 ms 2 726 ms 2 424 ms 1 788 ms 1 327 ms 1 233 ms 0 935 ms 5 00 Volts 2 673 ms 2 531 ms 2 406 ms 2 139 ms 1 577 ms 1 171 ms 1 088 ms 0 825 ms 6 00 Volts 2 882 ms 2 729 ms 2 594 ms 2 306 ms 1 701 ms 1 263 ms 1 173 ms 0 889 ms 6 00 Volts 2 577 ms 2 441 ms 2 320 ms 2 062 ms 1 521 ms 1 129 ms 1 049 ms 0 795 ms 6 00 Volts 2 382 ms 2 256 ms 2 144 ms 1 906 ms 1 406 ms 1 044 ms 0 969 ms 0 735 ms 6 00 Volts 2 305 ms 2 183 ms 2 075 ms 1 845 ms 1 361 ms 1 010 ms 0 938 ms 0 711 ms 6 00 Volts 2 233 ms 2 115 ms 2 010 ms 1 787 ms 1 318 ms 0 978 ms 0 909 ms 0 689 ms 6 00 Volts 2 068 ms 1 959 ms 1 862 ms 1 655 ms 1 221 ms 0 906 ms 0 842 ms 0 638 ms 6 00 Volts 1 825 ms 1 728 ms 1 643 ms 1 460 ms 1 077 ms 0 800 ms 0 743 ms 0 563 ms 8 50 Volts 1 401 ms 1 327 ms 1 261 ms 1 121 ms 0 827 ms 0 614
11. 7383 Issue Z Fig 5 LSI driver symbols Symbol Description Min Maxi Min Maxi Unit Clock pulse width 95 155 ns Coek Sisetuptme 100 140 m Clock SI hold time 85 85 ns Serial out delay time t3 M4 M5 Clock strobe set up time oo Strobe pulse width OE data out delay time Vcc 5V or 3 3V Temp 25 C with resistive load THTE Printer Mechanism Series User manual page 16 33 Reference FDE 3107383 Issue Z Axiohm 4 3 3 Print head connection Pinout of the print head flex cable __ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O Otffrder OE 7 10 11 12 3 08 4 OE2 Otfodie2 _ 5 om OEfodier 16 Ve 17 Clock signal for serialising data to line 2 vw 21 Vch 2 Paper feed molor A1 Paper feed molor B1 Vch Vch OE5 OE4 ND ND ND ND OE3 OE2 OE1 Anode opto Anode of end of paper opto sensor Opogomd SS O Collector opto Collector of end of paper opto sensor Contact side Contact side 28 1 50 or 65 mm Pitch between contact 1 mm For the connection of the mechanism Axiohm recommend the following 28 pins connectors from printhead flex to board JST series FMN BMT or FMN SMT 5597 THTE Printer Mechanism Series User manual page 17 33 Reference FDE 3107383 Issue Z Axiohm 4 4 Bipolar
12. PRINTER SPECIFICATIONS continued ITEM VALUE UNITS Maximum duty cycle 1 sec 15 max Storage temperature range 25 to 70 Operating temperature range 0 to 50 Relative humidity operating 10 to 90 Operating voltage range Vcc 3 3107 V DC logic Operating voltage range Vch 4 to 8 5 V DC dof mA Current consumption Vch at nominal value 5V per resistor dot on Current consumption Icc max at value 5 25V Current consumption Stepping motor at nominal value weight Specified standards IEC 68 2 6 IEC 68 2 29 IEC 68 2 36 The printing density variation may become significant when the number of dots energized simultaneously becomes greater than 64 Print head is allowed to have 4 0 A maximum Per AXIOHM standard test conditions which are mainly 5V 25 C dot printing duty cycle 30 THTE Printer Mechanism Series User manual page 6 33 Reference FDE 3107383 Issue Z 3 MECHANICAL SPECIFICATIONS 3 1 General description The mechanism consists in Plastic chassis with two platen bearings Stepper motor Gears train Printhead module with flex cable and opto sensor Platen roller 3 2 Dimensions of the complete mechanism Height 16 mm Width 72 39 mm Height 16 g Note general tolerances z 0 2 when no other is specified 3 3 External Dimensions i E
13. a 2 high lighted The heating time in column 3 is greater than the motor cycle time Area 3 indicated by lt None gt The indicated heating time depending on speed voltage and temperature would be greater than the motor cycle time In areas 1 and 2 the heating time can be controlled either with or without historical control In areas 3 the printer cannot be operated THTE Printer Mechanism Series User manual page 28 33 Reference FDE 3107383 Issue Z How to use tables Without historical control apply the indicated heating time given as a function of speed voltage and temperature At high speed printing quality for isolated dots might be affected with this method Example at 20 mm s 30 C and 6 volts heating time 2 233 ms time from column 3 With historical control in area 1 apply the indicated heating time function of speed voltage and temperature when the dot has been heated on the previous dot line and the time from column 3 when it has not This method gives the best printing quality Example at table at 25 mm s 20 C and 6 volts previous dot dot to heat Heating time to apply dot ON 1 90 ms dot OFF 1 With historical control in area 2 apply the indicated heating time function of speed voltage and temperature when the dot has been heated on the previous dot line and the motor cycle time when it has not At high speed printing quality for isolated dots mig
14. e possible positions depend on the play of platen axis in its fixations to the cover Example 1 the cover axis is on the same plan than the platen axis at 30 mm Example 2 the cover axis is 65 mm from the platen axis and 8 5 mm below the platen axis plan 0 m Shaft diameter 3 _ 0 02 The cover can be set between 56 and 60 mm 2mm on each side it is recommended to use a maximum of 1 8 mm only on each side 1 8 mm Fy Important note when the mechanism is used with both Clamshell and tear bar option the platen axis must be free to move 1 5 mm in its holders as shown on the drawing below This allows the platen path without pushing against the tear bar 55 8 0 1 usable width for fixing 1 5 mm cover side Tear bar side 1 8 mm platen holder L THTE Printer Mechanism Series User manual page 9 33 Reference FDE 3107383 Issue Z 3 8 Useful distances m Distance between opto sensor and line of dots 11 1 5 mm m Distance between opto sensor and cut line with tear bar 14 1 5 mm W Tow positions for opto sensor Middle lateral position 30 15 mm from paper path guide Set on right side at 19 5 mm from the paper path guide 30 2 19 4 THTE Printer Mechanism Series User manual page 10 33 Reference FDE 3107383 Issue Z 4 ELECTRICAL SPECIFICATIONS 4 1 Nominal Power supply Print head Logic Vcc Dot line Stepping motor
15. ectrostatic protected areas 2 OVERVIEW Based on static thermal printing technology the THTE series is a family of user friendly highly reliable devices which have been specially designed with 5Vdots line and very small size to suit independent terminal applications THTE have got the UL CSA IES 60950 certification UL CSA Project n 03CA36108 IEC Report n E199398 A2 UL 1 The printer is designed to be used with a clamshell cover an optional tear bar is available and the mechanism can tolerate a latch if required SUMMARY OF PRINTER SPECIFICATIONS ITEM VALUE UNITS Printing method Static thermal dot line printing D 8 mm e see heating time depends on Mamun printing voltage temperature and control way Paper loadin Clamshell with front paper path or p g underneath paper path Paper width 58 or 60 80 with front paper path 130 with underneath paper path Maximum paper thickness For underneath paper path this value can be overshot with restrictions if needed contact AXIOHM Technical support Recommended paper JUJO TF50KSE3 m Number of resistor dots 94 Maximum number of dots 128 energized simultaneously dots mm motor steps 0 125 mm Resolution Paper feed pitch Head temperature detection By thermistor Out of paper detection By opto sensor THTE Printer Mechanism Series User manual page 5 33 Reference FDE 3107383 Issue Z SUMMARY
16. fications given below are given for the following conditions Logic voltage on chip 3 3 V lt Vcc lt 7V care should be taken to filter any transient signal or parasitic in order to keep the driver in a known state failure to observe this may result in head destruction Clock frequency max 8 MHz Vcc 5V 5 MHz Vcc 3 3V Minlowdevelinputvotage 0 vi Maxlowievelinputvotage 02 Vi Max low level input current vizo u Min high level output voltage 445V voh low level output voltage vo Printer Mechanism Series User manual page 14 33 Reference FDE 3107383 Issue Z 4 3 2 3 Timing Clock t2 t3 Serial in 4 Serial out 15 Strobe t7 OE 19 t9 Data Out Fig 4 LSI driver timing chart Serial in Serial input for data to be printed Clock Serial parallel shift register clock activated on leading edge of pulse rest level logic 0 Maximum clock frequency is 8 MHz Serial out Serial data out sent back to the connector of the thermal head STROBE Signal for putting data into memory active on logic level 0 rest level logic 1 OE Output Enable OE1 to OE6 power activation signals active at logic level 1 Data Outn Internal data out to heating points not available on connector Note All these inputs are CMOS compatible THTE Printer Mechanism Series User manual page 15 33 Reference FDE 310
17. ht be slightly affected with this method Example at 56 mm s 25 and 5 volts previous dot dot to heat Heating time to apply dot On E gt HN dot OFF E Printer Mechanism Series User manual page 29 33 Reference FDE 3107383 Issue Z 7 3 Heating Table With Paper AF50KSE3 Voltage V Speed mm s 163 8 Ohms Temps moteur pour un pas 7 810 ms 6 940 ms 6 250 ms 5 000 ms 3 130 ms 2 230 ms 2 080 ms 1 670 ms Temps moteur pour une sous ligne 7 810 ms 6 940 ms 6 250 ms 5 000 ms 3 130 ms 2 230 ms 2 080 ms 1 670 ms 3 30 Volts None None None None None None None None 3 30 Volts None None None None None None None None 3 30 Volts None None None None None None None None 3 30 Volts None None None None None None None None 3 30 Volts None None None None None None None None 3 30 Volts 7 334 ms 6 946 ms None None None None None None 3 30 Volts 6 472 ms 6 129 ms 5 825 ms None None None None None 4 00 Volts 6 766 ms 6 408 ms 6 091 ms None None None None None 4 00 Volts 6 051 ms 5 731 ms 5 447 ms 4 842 ms None None None None 4 00 Volts 5 592 ms 5 296 ms 5 034 ms 4 474 ms None None None None 4 00 Volts 5 413 ms 5 126 ms 4 872 ms 4 331 ms None None None
18. l circuit with low consumption 21 THTE Printer Mechanism Series User manual page 3 33 Reference FDE 3107383 Issue Z Axiohm 5 PRINTER CONTROL TECHNIQUES 22 LEE Lp P 22 52 IP P 24 9 9 DIM m 25 6 RECOMMENDATIONS 26 6 1 Mechanical recommendations 26 6 2 Electrical Recommendations 26 6 3 Motor Driving Recommendations 26 1 HEATING TIME mamans 27 7 1 Using form las eerie intere eo socer beo ena 27 7 2 Historical Control 28 7 3 Heating Table serere e retener Saee eee peer erar eden 30 7 4 Thermistor Specifications 31 8 PAPER SUPPLIERS seniors 32 9 SPARES u y a i Un FM CMM ERG lE 32 eM c wass 32 TOINDEX a n 33 THTE Printer Mechanism Series User manual page 4 33 Reference FDE 3107383 Issue Z 1 Each printer mechanism is packaged in an antistatic bag Observe precautions while handling in el
19. mpensate the play in the gears 4 4 4 Printing mode There are 4 different positions for the motor phases The circulation is P1 P2 A1B1 P1P2 gt P1P2 2 gt P1P2 2 position of the phases must kept in memory while the phase currents switched to zero order to restart the motor in a good position IP 277 mA t2 gt 1 3 ms During printing the motor phases should be maintained otherwise a paper motion can occur and induce unevenly spaced sub lines A good way to achieve this without over heating the motor is to keep the motor phases on when the buffer contains data and to release them when the buffer is empty THTE Printer Mechanism Series User manual page 19 33 Reference FDE 3107383 Issue Z 4 5 Sensors specifications 4 5 1 End of paper opto sensor This opto sensor detects the end of paper 4 5 1 1 Electrical characteristics Absolute maximum ratings RU Ei V s TUS EC Operating characteristics VF V IR uA ICEO A IO mA VCE sat v ltr us Value 13 MaxifO 2 10 7 mini 90 pA Typical 30 B _ F 10 mA IC 0 1 mA Conditions 10 VR 5V VCEO 10v VCE 5V 1 4 5 1 2 Connection Integrated with the main flex cable see 4 3 3 THTE Printer Mechanism Series User manual page 20 33 Reference FDE 3107383 Issue Z Axiohm 4 5 2 Recommended use for
20. ms 0 570 ms 0 432 ms 8 50 Volts 1 253 ms 1 187 ms 1 128 ms 1 002 ms 0 739 ms 0 549 ms 0 510 ms 0 387 ms 8 50 Volts 1 158 ms 1 097 ms 1 042 ms 0 926 ms 0 683 ms 0 507 ms 0 471 ms 0 357 ms 8 50 Volts 1 121 ms 1 061 ms 1 009 ms 0 897 ms 0 661 ms 0 491 ms 0 456 ms 0 346 ms 8 50 Volts 1 085 ms 1 028 ms 0 977 ms 0 869 ms 0 641 ms 0 476 ms 0 442 ms 0 335 ms 8 50 Volts 1 005 ms 0 952 ms 0 905 ms 0 804 ms 0 593 ms 0 441 ms 0 409 ms 0 310 ms 8 50 Volts 0 887 ms 0 840 ms 0 799 ms 0 710 ms 0 524 ms 0 389 ms 0 361 ms 0 274 ms THTE Printer Mechanism Series User manual page 30 33 Reference FDE 3107383 Issue Z 7 4 Thermistor Specifications Operating Temperature 20 to 80 C Thermistor time constant Max 30 sec in air This thermistor has a rated value of 30 5 96 Its resistance variation be expressed as follows R Rn exp B where is in Kelvin degrees K This gives the following curve for T in B 3950 K Rn reference value at temperature Tn 298 K kO 200 180 160 140 120 100 80 60 40 20 THTE Printer Mechanism Series User manual page 31 33 Reference FDE 3107383 Issue Z 8 PAPER SUPPLIERS JUJO TF50KSE3 Ref 3104208 9 SPARES All spare parts kits are supplied as individually packaged loose parts It is possible to obtain different groups of spare parts kits AXIHOM customer service will provide the list later Reference Designation Contents 9 1 kit
21. nism Series User manual page 22 33 Reference FDE 3107383 Issue Z Din m Strobe OE 1 Jue Motor Steps T Clock frequency 8 MHz maximum or 5 MHZ if VCC lt 5V Timing diagram for mode 1 THTE Printer Mechanism Series User manual page 23 33 Reference FDE 3107383 Issue Z 5 2 Mode 2 The paper feed occurs after the heating cycle giving high quality printing Printing of n dot line Transmission of data in series Din in step with CLK Transfer to memory stage STROBE il hs Transmission of next OE 1 series of data simultaneously Motor feed End of printing Din mmm a an N Strobe OE 1 10 Motor Steps i O i T Clock frequency 8 MHz maximum Timing diagram for mode 2 THTE Printer Mechanism Series User manual page 24 33 Reference FDE 3107383 Issue Z Axiohm 5 3 Mode 3 This mode is used in conditions where there is a limit of electrical current The dot line is printed in stages heating only a portion of the line at a time effectively giving reduced consumption Printing of n dot line Transmission of data in series Din in step with CLK Transfer to memory stage STROBE Heating controlled Transmission of through next series of data OE 1 2 0En successively blocks Motor feed End of printing Clock CLK
22. s K3105401 Platen Roller For Products All THTExxxx THTE Printer Mechanism Series User manual page 32 33 Reference FDE 3107383 Issue Z 10 INDEX O Connection lu in te Na 17 Oplo Sensor us uu uu secede 20 21 Current consumption 2 2 2 4 4 7 P D platen AXIS 10 dot resistance 12 dots energized simultaneously 6 LI M 13 R driver timing 16 Once 15 cvcle 7 26 CY CLG ee uns Relative humidity See SPECIFICATIONS H 5 Heating time 2 27 BENE Shift register 13 27 SPECIFICATIONS 222222 6 stepping motor 18 M T memory register nitore ciiin nenne eterne 13 drivi M MM ui c 18 F i o au 6 MO OL VI eee see thermistor u 29 Printer Mechanism Series User manual page 33 33 Reference FDE 3107383 Issue Z
23. stepping motor This motor is used to drive the platen for paper feed it is a bipolar stepping motor its characteristics are described bellow 4 4 1 Characteristics Recommended control voltage 5 Coil Resistance 18 Number of phases 2 bipolar Pitch angle 18 Number of steps per revolution 20 Paper feed for 2 motor steps 0 112 mm Recommended control current 277 5 180 mA phase Maximum starting speed 720 45mm s step s to go faster an acceleration ramp up must be achieved For the motor driving see the following page and the chapter Recommendations 4 4 2 Motor connection The motor is connected to the main flex cable in addition to the End of paper opto sensor See 4 3 3 Print head connection Printer Mechanism Series User manual page 18 33 Reference FDE 3107383 Issue Z 4 4 3 Induction sequence timing paper feed Motor feed timing diagram Motor Steps OI Heating cycles 1 Note that each time the motor has been stopped for more than 8 ms the next step should be longer by 1 ms in order to restart the motor in the appropriate position Motor initialisation This operation is necessary to place the motor in a good position when the printer electronic is powered on or reset Both phases must be powered with the same current during t1 1 ms It must be followed by 16 motor steps in order to co
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