TA/TB – DA/DB PRINTER USER MANUAL
Contents
1. The following table is an example of an acceleration curve that can be used to increase from the maximum starting frequency of motor to 130 mm s The curve may need to be modified depending on the paper roll size and the bucket resistance This curve has been designed for a paper roll of 90 mm diameter not mounted to an axle uu number 4 5 7 pev es me ex su motor speed step second siep number s a amp B5 4 printing speed 976 1041 1116 425 motor speed tepsecond 781 1000 1042 step motor time ws 1200 1120 1080 1040 1000 560 It is also recommended to use this curve if lower speed is necessary or to re accelerate from medium speed This happens particularly when the dot line heating 1 divided into several dot groups for consumption reasons or to avoid going over 60 of dots on TA TB DA DB Printer User Manual Page 14 32 Reference FDE 3107999 Issue Z Axiohm 3 4 Cutter Motor Characteristics This cutter is fitted with DC motor the blade position is detected by switch 3 4 1 Motor amp switch connections Locating side shown 3 amp 4 not connected 100 10 mm Cable division length lt p J17 1 Lo Switch 4 3 2 1 JS 280 15 mm total cable length 3 4 2 Motor driving The home2. APPENDIX 4 HEATING TIME The heating timetable is presented on the following page given for paper KL415SB The print head resistance to obtain this table was 950 The timetable gives the required heating time giving the necessary energy to obtain an optical density of 1 2 The heating time must always be shorter than the motor cycle time How to use the heating timetable The heating time can be controlled either with or without historical control as described here after Without historical control Take the indicated heating time from the timetable definition of voltage and temperature and speed do not take into account the history control gt History EN always 1 At high speed printing quality for isolated dots might be affected with this method Example at 130mm s 25 C and 24 volts TCH 362 us from the table In this mode only one serialisation of data 1s necessary for one dot line With historical control In this mode the actual heating time is different depending on if the dots have been previously heated or not History EN 1 or 0 This method gives the best printing quality With this mode two serialisation data are necessary for one dot line The first one will be all the data and the second one will be only the dots not heated previously on lines N 1 and N 2 Example at 130 mm s 25 C and 24 volts N 2 N 1 dot to heat Heating time to apply HistoryEN 1 dot O
3. 3950 K 3 Rn reference value at temperature Tn 298 K Note that printing should be stopped if the thermistor value goes over 60 C TA TB DA DB Printer User Manual Page 25 32 Reference FDE 3107999 Issue Z Axiohm 62 APPENDIX 2 PAPER CHARACTERISTICS 6 2 1 Paper width dimensions Paper roll width dimensions should meet the following specifications to ensure correct operation of the printer mechanism Paper width DAxx TAxx 80 0 3 DBxx TBxx 6 2 2 Recommended paper characteristics Kanzan KL415 SBt Typical properties of KL415 SB Test method Basis weight 182 12 ISO 536 JIS P8124 Brightness ISO 2470 JIS P8123 Smoothness k R AS Properties of Appleton Optima T886 B Topic Basis Weg essai With this paper an average factor of 1 45 should be applied to the heating time given this affects the printing speed as explained in the chapter 6 3 Heating time calculations Thickness 183 12 am so 534 JIS P8124 Typical properties of Blumberg T49 32 mn Smwhes B SETS pa CN IE EN uses fe CD Hod caning Axiohm Typical properties of Mitsubishi TP 8065 Calliper 87 t5 um Image colour Black Initial activation T 85 Effective activation T Tear strength CD 40 10
4. Connector JST PHR 3 BL blue 1 Black golden plated contacts 2 Not Connected SPH 002GA P0 55 3 Red Corresponding contact to be set on the board same as end of paper switch TA TB DA DB Printer User Manual Page 17 32 Reference FDE 3107999 Issue Z Axiohm 3 6 4 Cutter switch characteristics J5 contact resistance 10 mQ maximum rating 5 A 250 V 3 6 5 Optical sensors characteristics J10 Reflective sensor is described below Optical cell gt Leads length 360mm 10 Connector JST PHR 3 1 Black Ground 2 Purple Diode command 3 Brown Transistor reception Corresponding contact to be set on the board same as end of paper switch The optical cell is Kodenshi SGIOSF see main characteristic on next page To use transmitive detection two identical optical sensors can be placed face to face In this case the sensor cell will be the same as described but the connection has to be defined For Top of form detector It is recommended to have 0 7 min Macbeth optical density 20 max reflectance to 900NM infrared light for the black mark on the paper Use the D filter to measure with the Macbeth PCM II See specifications in chapter 2 5 on Optical sensor position TA TB DA DB Printer User Manual Page 18 32 Reference FDE 3107999 Issue Z Axiohm Absolute Maximum ratings LED Continuous Forward Current Pulsed forward current Reverse volt
5. Axiohm TURNKEY PRINTING SOLUTIONS DA DB PRINTER USER MANUAL Reference 3107999 Issue Z October 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 Axiohm EVOLUTIONS Date Issue Modifications 10 2004 TA TB DA DB Printer User Manual Page 1 32 Reference FDE 3107999 Issue Z The TA TB series are highly reliable printer mechanisms especially designed to print and cut very thick thermal paper DA DB version without cutter Those mechanisms come with standard features such as top of form management end of paper detection possible reverse feeding The motor torque allows to handle big paper rolls or folded media to suit as many applications as possible The specific paper guiding added to a heavy duty guillotine blade give to this mechanisms the ability to cut the thickest thermal media available on the market The most common Axiohm PCBs available to drive those mechanisms are the Optiboard series The following manual is designed to help the mechanical and electronic integration Axiohm technical support can be contacted if necessary TA TB DA DB Printer User Manual Page 2 32 Reference FDE 3107999 Issue Z Axiohm CONTENTS 1 TECHNICAL SPECIFICATIONS 5 2 MECHANICAL FEATURES 6 2 1 External
6. MIDI NETT MEE 6 2 20 Housing features for ticket access 8 23 Paper entry 8 3 9 L IDs uuu oo m 9 32 General Print Head Characteristics 9 3 24 Fonction of each 64 bit IC integrated circuit 9 3 2 2 Routing of data to the thermistor dots 10 3 2 3 Brune E 11 3 2 4 Print head COMME CHOM rdv 12 3 3 Paper Feed Motor Characteristics 13 3 3 1 Motor connections for standard versions 715 13 3 3 2 Induction sequence and timing for standard motor 14 3 3 3 Acceleration curve for standard motor 14 3 4 Cutter Motor Characteristics 15 3 4 1 Motor amp switch connections 15 3 4 2 usu umum aims AA 15 3 5 Stepper Motors Electric Control paper feed 16 3 5 1 Used DIV Cl dai pri ran 16 3 5 2 se e BA A 16 17 3 6 1 End of pap
7. N 15mm ISO 1924 1 Head cleaning frequency E Typical properties of Kanzaki Lotto 480 Brims Smoothness hk Head cleaning Typical properties of Sihl PrintTherm 80 P 7 CS Basis weigh Brightness Smoothness gt 500 Image colour Black AN 78 Effective activation T 105 Head cleaning frequency Refer to chapter Cleaning your printer TA TB DA DB Printer User Manual Page 27 32 Reference FDE 3107999 Issue Z Axiohm 63 APPENDIX 3 HEATING TIME CALCULATION 6 3 1 Real heating times Heating time versus voltage and temperature Tch saturation heating time 0 440 ms 100 C Heating Time vs Speed At Nominal Voltage amp Nominal Temperature 24 Volts t2 t1x ax Log tm b KL415SB Coeff a 0 3826 Ti tm Time for motor step ms Coeff b 1 0150 Heating Time vs Temperature At Nominal Speed amp Nominal Voltage 24 Volts mm 3 t2x cT d 0 081 Coeff d 1 2175 For polynomial modelisation Coeff g 0 00000161 3 Coeff h 0 000173 less gx hT x1I J Coeff i 4 013600 2 Coeff J 1 259449 Heating Time vs Voltage At nominal Temperature amp Speed 30mm f 14155 192 Coeff f 2 6037 Recommended by Axiohm more accurate TA TB DA DB Printer User Manual Page 28 32 Reference FDE 3107999 Issue Z Axiohm 6 3 2 History con
8. Reference FDE 3107999 Issue Z Axiohm 2 MECHANICAL FEATURES 2 1 External Dimensions 81 EA 290 10mm Paper inlet Only the straight paper path is available on these mechanism versions TA TB DA DB Printer User Manual Page 6 32 Reference FDE 3107999 Issue Z Axiohm Sheet metal cover M NN gt NX Thick paper cutter opecific paper guide for thick paper paper path edge i Useful distances for Top of form middle pops path management paper edge Distance from the optical sensor to the line of cut 79 5 1 mm 6 3 mm for 80 mm mechanisms 7 5 mm for 82 5 mm mechanisms Distance from the line of dots to the line of cut 35 1 mm The optical sensors can be placed on both sides of the paper path They can face the back side of the paper TA TB DA DB Printer User Manual Page 7 32 Reference FDE 3107999 Issue Z Axiohm 2 2 Housing features for ticket access See section Recommendations 2 3 Paper entry and exit The paper must be guided to reach the mechanism paper inlet The guide must be designed in such a way that 1t does not stop the paper or mark it or create high friction If the application requires a paper guide at the mechanism paper exit make sure the paper is not bent too much otherwise a jam will occur The design of the mechanism guide at the paper exit is optimized to cut thick pape
9. position of the cutter guillotine blade 1s detected by the switch It is necessary to test that the switch 1s closed when powering on if it is not power the DC motor so that the blade 15 moved till it closes the switch CUT SEQUENCE Apply power to the DC motor Check the switch opens When the switch 15 closed again reverse the power applied to the DC motor during 25 ms This balances the motor inertia Note 1 Only the full cut 15 available with this mechanism series Notes 2 Depending on the application the 25ms can slightly vary To tweak this timing in your development process check the switch stays closed meaning the blade stays in correct position TA TB DA DB Printer User Manual Page 15 32 Reference FDE 3107999 Issue Z Axiohm 3 5 Stepper Motors Electric Control paper feed 3 5 1 Used Driver Even though different motor drivers can be used to apply the cycle described next Axiohm recommends the use of L6258EX from ST 3 5 2 Driving cycle There are 4 different conditions for the motor windings The sequence 1s AB gt gt gt Where AB stands for A positive B negative This electrical sequence corresponds to a sequence of 4 consecutive mechanical positions The sequence 15 repeated 12 times for each revolution 24 for cutter motor If the phase currents are switched to zero the position in the sequence must be memorized When the winding currents are r
10. 0 515 ms 0 494 ms 0 475 ms 0 438 ms 0 398 ms 0 522 ms 0 471 ms 0 432 ms 0 414 ms 0 398 ms 0 367 ms 0 303 ms 0 402 ms 0 363 ms 0 333 ms 0 319 ms 0 307 ms 0 283 ms 0 848 ms 0 767 ms 0 702 ms 0 674 ms 0 647 ms 0 596 ms 0 543 ms 0 685 ms 0 619 ms 0 566 ms 0 544 ms 0 522 ms 0 481 ms 0 438 ms 0 535 ms 0 510 ms 0 467 ms 0 448 ms 0 430 ms 0 397 ms 0 361 ms 0 473 ms 0 427 ms 0 391 ms 0 375 ms 0 361 ms 0 332 ms 0 290 ms 0 385 ms 0 348 ms 0 318 ms 0 306 ms 0 294 ms 0 271 ms 0 812 ms 0 734 ms 0 672 ms 0 645 ms 0 620 ms 0 571 ms 0 520 ms 0 655 ms 0 592 ms 0 542 ms 0 521 ms 0 500 ms 0 461 ms 0 420 ms 0 512 ms 0 488 ms 0 447 ms 0 429 ms 0 412 ms 0 380 ms 0 346 ms 0 453 ms 0 409 ms 0 375 ms 0 359 ms 0 345 ms 0 318 ms 0 279 ms 0 371 ms 0 335 ms 0 307 ms 0 294 ms 0 283 ms 0 261 ms 0 782 ms 0 707 ms 0 647 ms 0 621 ms 0 597 ms 0 550 ms 0 501 ms 0 631 ms 0 570 ms 0 522 ms 0 501 ms 0 481 ms 0 444 ms 0 404 ms 0 493 ms 0 470 ms 0 430 ms 0 413 ms 0 397 ms 0 366 ms 0 333 ms 0 436 ms 0 394 ms 0 361 ms 0 346 ms 0 333 ms 0 306 ms 0 269 ms 0 357 ms 0 323 ms 0 296 ms 0 284 ms 0 273 ms 0 251 ms 0 754 ms 0 682 ms 0 624 ms 0 599 ms 0 575 ms 0 530 ms 0 483 ms 0 609 ms 0 550 ms 0 503 ms 0 483 ms 0 464 ms 0 428 ms 0 390 ms 0 476 ms 0 453 ms 0 415 ms 0 398 ms 0 383 ms 0 353 ms 0 321 ms 0 420 ms 0 380 ms 0 348 ms 0 334 ms 0 321 ms 0 296 ms 0 260 ms 0 346 ms 0
11. 2 Recommendations for Electronic IMPORTANT If the line of dots Vch 24 V is supplied before the control logic Vcc 5V 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 24V after the logic supply voltage 5V When first applying Vch make sure the OEs level 1 0 in order to avoid the dot heating before sending data The same precaution should be taken when shutting down The supply voltage Vch must be switched off before the logic supply voltage Care should be taken to allow enough time for residual capacitive charge to dissipate To reduce the peak current drawn from the power supply it is recommended to use a storage capacitor of 1000 to 1200 uF 35V TA TB DA DB Printer User Manual Page 22 32 Reference FDE 3107999 Issue Z Axiohm 5 3 Recommendations for paper Use a paper classified with an AXIOHM Part number or approved by Axiohm Make sure the paper stock spool is free to turn With the acceleration curve of the paper feed motor given in this manual the paper feed motor can pull with a maximum force see chart in chapters 3 2 and 3 3 without affecting the printing quality For common rolls of paper and on common supports this force corresponds to a roll diameter of 115mm sliding in its bucket Above
12. 313 ms 0 286 ms 0 275 ms 0 264 ms 0 243 ms lt None gt 0 660 ms 0 604 ms 0 580 ms 0 557 ms 0 513 ms 0 467 ms 0 589 ms 0 532 ms 0 487 ms 0 468 ms 0 449 ms 0 414 ms 0 377 ms 0 461 ms 0 439 ms 0 402 ms 0 385 ms 0 370 ms 0 341 ms 0 311 ms 0 407 ms 0 368 ms 0 337 ms 0 323 ms 0 310 ms 0 286 ms 0 244 ms 0 325 ms 0 293 ms 0 269 ms 0 258 ms 0 248 ms 0 228 ms lt None gt lt None gt lt None gt 0 544 ms 0 523 ms 0 482 ms 0 438 ms 0 553 ms 0 500 ms 0 457 ms 0 439 ms 0 422 ms 0 389 ms 0 354 ms 0 432 ms 0 412 ms 0 377 ms 0 362 ms 0 347 ms 0 320 ms 0 292 ms 0 382 ms 0 345 ms 0 316 ms 0 303 ms 0 291 ms 0 268 ms 0 334 ms 0 443 ms 0 401 ms 0 367 ms 0 352 ms 0 338 ms 0 312 ms TA TB DA DB Printer User Manual Page 32 32 Reference FDE 3107999 Issue Z
13. COBEEOL io A 29 APPENDIX 4 HEATING TIME 31 TA TB DA DB Printer User Manual Page 4 32 Reference FDE 3107999 Issue Z Axiohm 1 TECHNICAL SPECIFICATIONS The following table gathers the main characteristics of the printing unit VALUE printing Paper loading Autoload Automatic Number of resistor dots 640 dots Resolution 8 horizontal amp vertical Dots mm ERI Max Printing speed Paper width TAxx TBxx RN Head By Thermistor Paper empty detection ZA Option optical sensor Operating voltage range Vcc logic 4 5 5 5 V DC 5 10 Vch dot V DC 24V 10 Current Consumption Vch 26 mA per resistor dot on at 24V Max Current Consumption Vcc 50 mA all dots on Nominal dot energy High sensitivity paper Current Consumption Stepping motor mA per activated phase at 24V A Peak print head current 16 7 all dots on at nominal value Over all dimensions Width 152 6 Depth 87 1 Height 122 Weight 88 no oa j 20 to 80 C up to 50 C Operatingrange 2 range 2 to 50 In standard conditions 24 Volts 25 for a print head with a resistance of 950 at 1042 PPS 2 Contact Axiohm for recommendations if extended conditions are required 5 Per AXIOHM conditions TA TB DA DB Printer User Manual Page 5 32
14. GND GND GND Vch Vch Vch Vch Contact side 30 pin compatible connectors to be fitted on the controller board Compatible connector suppliers and references Molex 5597 3951 3304 straight connector Molex 5597 3951 3303 bent connector Stocko MZF 9390 60 3030 straight connector Stocko MZF 8900 60 3030 bent connector TA TB DA DB Printer User Manual Page 12 32 Reference FDE 3107999 Issue Z Axiohm 3 3 Paper Feed Motor Characteristics Motor for standard versions Coil resistance 8 O Number of phases 2 Bipolar Chopper 2 2P Paper feed for 1 motor step 0 125 mm Step angle 7 5 48 steps per revolution d Recommended control current 500 mA phase Maximum starting frequency 400 step s with no load Maximum speed 1040 step s Maximum pull force 600 gr 3 3 1 Motor connections for standard versions J15 20 280 Ot JH master spline on opposite side 1 yellow Connector JST PHR 4 R Gold plated contacts SPH 002GA 55 gear side view Corresponding contact to be set on the board gold plated JST B4B PH K G tin plated JST B4B PH K TA TB DA DB Printer User Manual Page 13 32 Reference FDE 3107999 Issue Z Axiohm 3 3 2 Induction sequence and timing for standard motor BLACK ORANGE BROWN YELLOW Currents removed current into winding A current into winding B Z Currents Motor Steps restored 3 3 3 Acceleration curve for standard motor
15. N E mi 0 362 ms HistoryEN 1 dot OFF E EH 0 362 ms HistoryEN 0 C gt E 0 621 ms base heatingtime TA TB DA DB Printer User Manual Page 31 32 Reference FDE 3107999 Issue Z Axiohm Heating time table Paper KL 415 SB Temperature CC Speed mm s 942 Ohms lo S mm 70mm Virtual mm s 50 mm s 70mm s 80 mm s 90 mm s 100 mm s 110 mm s 130 mm s Temps moteur pour une sous ligne 6 250 ms 2 500 ms 1 790 ms 2 500 ms 1 790 ms 1 560 ms 1 390 ms 1 250 ms 20 00 20 00 20 00 20 00 20 00 20 00 24 00 24 00 24 00 24 00 24 00 24 00 24 00 28 00 28 00 28 00 28 00 28 00 28 00 19 78 19 78 19 78 19 78 19 78 19 78 24 26 24 26 24 26 24 26 24 26 24 26 24 26 28 73 28 73 28 73 28 73 28 73 28 73 10 20 230 30 C 40 C 50 C 5 10 20 25C 30 C 40 C 50 C 0 C 10 C 20 C 25 30 C 40 C 1 176 ms 1 063 ms 0 973 ms 0 934 ms 0 897 ms 0 827 ms 0 753 ms 0 949 ms 0 858 ms 0 785 ms 0 754 ms 0 724 ms 0 667 ms 0 608 ms 0 742 ms 0 707 ms 0 647 ms 0 621 ms 0 597 ms 0 550 ms 0 501 ms 0 655 ms 0 592 ms 0 542 ms 0 521 ms 0 500 ms 0 461 ms 0 334 ms 0 443 ms 0 401 ms 0 367 ms 0 352 ms 0 338 ms 0 312 ms 0 936 ms 0 846 ms 0 774 ms 0 743 ms 0 714 ms 0 658 ms 0 599 ms 0 755 ms 0 683 ms 0 625 ms 0 600 ms 0 576 ms 0 531 ms 0 483 ms 0 591 ms 0 562 ms
16. age Max Power Dissipation at 25 PHOTO TRANSISTOR Collector Emitter Voltage Collector Current Collector Dissipation at 25 max Note Driving the sensor with pulse current allows to use higher current to improve paper detection Time On Time Off T On 100ps T On T Off 10 ms Input Output Conditions Forward voltage IF 10 mA Reverse current VR 5v TRANSFER CHARAC Collector dark current VCE 10V Light Current VCE 5V IF 10mA Leakage Current VCE SV IF 10mA Rise time VCE 2V IC 100uA Fall time Peak wave length RL External Circuit Example SV pulse with pulsed current Analog Digital Convertoer TA TB DA DB Printer User Manual Page 19 32 Reference FDE 3107999 Issue Z Axiohm MACHINE READABLE END OF ROLL WARNING STRIPE 12MMMIN VIEW OF NON THERMAL 5MM MAX MAY EXTEND TO EDGE LAST PARTIAL CUT 82 5MM 30 INCHES MINIMUM MAY EXTEND TO ROLL END DESIRED FOOTAGE PAPER LOW 0 7 MINIMUM MACBETH OPTICAL DENSITY 20 MAX REFLECTANCE MEASURE WITH THE D FILTER ON THE MACBETH II END OF PAPER TA TB DA DB Printer User Manual Page 20 32 Reference FDE 3107999 Issue Z Axiohm 4 PRINTER CONTROL TECHNIC In order to operate the printer we depict hereafter the mode that will allow driving the printer with maximum speed Mode The paper feeds itself automatically during the heating cycle thereby permitting to achieve
17. d to the Driver ICs but to the resistive line of dots itself The driver ICs are connected via a pattern of high current gold interconnecting traces to the line of resistor dots Heat element structure 2 heaters dot 3 2 2 Routing of data to the thermistor dots R64 RI R64 RI Resistors Resistors CHIP n 1 OUT CLK Strobe OE n OE n 1 Paper path direction Data iom Sensitive side Print head bottom view chip side Thermal Dots print order The first bit of data entered will be the first bit of data printed FIFO TA TB DA DB Printer User Manual Page 10 32 Reference FDE 3107999 Issue Z Axiohm 3 2 3 Timing Chart 1 tl Clock CN MW t4 DIN SI t6 t5 otrobe latch t7 SO OE strobe DOUT Min Typ Clock frequency 6 25 Mhz Clock pulsewidth e 70 J Jn Clock SIsetuptime 8 40 Clock Stholdtime 40 ms Latch pulse width 5 100 ms Clock latch setup time t 100 ms So payin Ps w 195 ys pomme 5 35 onem 29 ws TA TB DA DB Printer User Manual Page 11 32 Reference FDE 3107999 Issue Z Axiohm 3 2 4 Print head connection The following table provides the standard printing speed version Pimw 20 Simi Sima _ Vch festing _ x mes OE 5 OE 4 amar 11 GND 12 GND NNNM GND
18. e applied the polarities corresponding to the last known position should be used This ensures that the motor will re start correctly Once the initial winding currents have been applied they must be maintained for a time t1 t1 gt 2 ms Once this time has passed the motor can be operated if the winding currents are changed in the usual manner To take up the backlash in the gears please operate the motor for 16 steps before printing TA TB DA DB Printer User Manual Page 16 32 Reference FDE 3107999 Issue Z Axiohm 3 6 Sensors On DA DB TA TB sensors are used as follows End of Paper switch J7 Cover Sensor switch J6 Cutter Blade position switch J5 TOF opto sensor only on certain version J10 3 6 1 End of paper switch characteristics contact resistance 30 maximum rating 100 mA 250 V Operating temperature 40 C 85 C 3 6 2 End of paper switch connection J7 1 black Leads length 250 5 mm Connector JST PHR 3 Y yellow 1 Black golden plated contacts 2 Not Connected SPH 002GA P0 55 3 Red Corresponding contact to be set on the board gold plated JST B3B PH K G tin plated JST B3B PH K Cover switch characteristics contact resistance 150 mo maximum rating 10 mA 5 VDC operating temperature 40 C 85 3 63 Cover switch connection J6 Black m 1 black CE 2 3 Red Leads length 260 5 mm
19. er switch characteristics 17 246 2 End of paper switch connection 77 17 3 6 3 Cover switch connection J6 17 3 6 4 Cutter switch characteristics J5 18 3 6 5 Optical sensors characteristics 710 18 4 PRINTER CONTROL 21 RKECOMMWMENDATIO Somos 22 5 1 Mechanical Recommendations 22 5 2 Recommendations for Electronic 22 5 3 Recommendations for paper 23 55 yonr POr TE TE 23 5 6 General Recommendations ninia 24 TA TB DA DB Printer User Manual Page 3 32 Reference FDE 3107999 Issue Z Axiohm O APPEND ES 25 6 1 APPENDIX 1 PRINT HEAD THERMISTOR 25 6 2 APPENDIX 2 PAPER CHARACTERISTICS 26 6 2 1 Paper width dimensions visita itis irre 26 6 2 2 Recommended paper characteristics 26 6 3 APPENDIX 3 HEATING TIME CALCULATION 28 6 3 1 Regal hatine A AA 28 6 3 2 History
20. high speed in this mode it is recommended to use historical control This is the most commonly used method with those mechanisms series Printing of n dot line Transmission of data in series Din in step with CLK Transfer to memory stage STROBE Heating controlled Transmission of next through series of data OE 1 OE 2 OEn simultaneously End of printing Din v ys A Strobe NR Motor Steps BEES jJ T Clock frequency TA TB DA DB Printer User Manual Page 21 32 Reference FDE 3107999 Issue Z Axiohm 5 RECOMMENDATIONS 5 1 Mechanical Recommendations 1 Make sure the mechanism 15 fixed to a plane mounting surface as shown on next drawing This 1s necessary whether the mechanism is mounted to its front or underneath surface Front plane mounting surface to set the mechanism tolerance 0 1 mm Underneath plane mounting The fixing surfaces should be set to surface to set the mechanism a plane surface j tolerance 0 1 mm 2 Never apply mechanical stress to the mechanism other than the necessary stress to fix the mechanism on a plane surface as described above This could result in print head misalignment and thus degrading the print quality A good way to achieve this is to leave some freedom to some of the fixing points 3 The thermal print head must have 1 degree of freedom of movement Never prevent the print head from pivoting on its axis 5
21. on the duty cycle because of the heat generated by the receipt thermal print head when printing solid blocks regardless of the length of the block in relation to the print line The restrictions are ambient temperature the percentage of time measured over one minute of continuous solid printing and the amount of coverage Another cause for duty cycle restriction 15 paper feed motor temperature increase due to continuous printing Allowable Duty Cycle measured over one minute of continuous printing Ambient Temperature Coverage 25 C 35 C 509 20 100 during the first 3 minutes of 50 20 continuous printing 50 after 3 minutes 40 50 25 10 100 20 10 4 For reference typical receipt with text contains some blank spaces is approximately 12 dot coverage A full line of text characters every cell on the line has a character in it 1s approximately 25 dot coverage Graphics are approximately 40 dot coverage Barcodes are approximately 50 dot coverage A solid black line 1s 100 dot coverage TA TB DA DB Printer User Manual Page 24 32 Reference FDE 3107999 Issue Z Axiohm 6 APPENDICES 6 1 APPENDIX I PRINT HEAD THERMISTOR Maximum operating temperatures Thermal dissipation constant gt 0 3 mW C This thermistor has a rated value of 30 Its resistance variation can be expressed as follows 1 1 P R Rn exp B where is in Kelvin degrees K
22. print head Cleaning instructions Switch off printer Never clean the head immediately after printing for the head may be hot Open the cover of the printer and remove the roll of paper roll Clean the heating dots of the head with a cotton stick containing a solvent alcohol ethanol methanol or IPA but do not touch the print head with your fingers Allow the solvent to dry Reload the paper and close the cover N B AXIOHM can provide cleaning kits P N CK80000A TA TB DA DB Printer User Manual Page 23 32 Reference FDE 3107999 Issue Z Axiohm 5 6 General Recommendations Ensure that there is adequate air circulation around the print head support heat sink for poor ventilation of the print head can degrade the print quality Depending on the uses high current set in the motor phases integration of the mechanism in a very tight housing high temperature it may be necessary to set a duty cycle time to avoid overheating of the paper feed motor In this case tests must be made by the mechanism integrator The temperature should not exceed 80 on the motor frame ror Clamshell applications the mechanism cannot be opened when the rotating blade is stopped in its cutting position The rotating blade must be in such a position that the paper path is opened cutter switch closed Never open the mechanism while printing or when the cutter is operating Duty cycle restrictions There are restrictions
23. r If an exit guide 15 added leave enough space so that it does not obstruct the mechanism guide and prevent the internal paper guide from working properly PAPER ENTRY EXIT ANGLE The paper should be guided as shown on the drawing here after Smooth curves are preferred to drive the paper in or out In case of doubt when designing the guides contact your Axiohm representative EE A e EN E T 4 J E IP VES ESA TV N KS TA TB DA DB Printer User Manual Page 8 32 Reference FDE 3107999 Issue Z Axiohm 3 ELECTRIC INTERFACE 3 1 Overview 3 2 General Print Head Characteristics Number of dots Number of driver ships 10 64 dots per ships 950 3 96 0 Maximum current per dot line at 24V 16 2A 3 2 1 Fonction of each 64 bit IC integrated circuit Vch 9 O 2 3 4 OUTPUTS 62 63 64 Line of resistor dots GND Output Enable OE OE Strobe 64 bits buffer Serial 64 shift Input SI register we O AE TT Y SERIAL OUTPUT SO TA TB DA DB Printer User Manual Page 9 32 Reference FDE 3107999 Issue Z Axiohm Driver IC schematic These circuits are supplied by 4 5 to 5 5V logic voltage Each circuit features 64 open collector transistors 64 bit shift register 64 bit memory register Each circuit controls 64 resistor dots on the print head The heating element power supply VCH is not connecte
24. this value or if the bucket and paper path friction are high use an axle to set the roll maximum diameter 200mm If bigger rolls are required contact your Axiohm representative a specific mechanical design and or a specific acceleration curve may be required and the printing speed may be affected The roll of paper must be exactly on line perpendicular to the printer mechanism and parallel to the paper inlet in order to avoid paper tracking Paper inlet path must be designed to avoid obstacles on paper edges The printer should not operate without paper or this will damage the surface of the rubber roller Note that the sensitivity of the paper has a direct impact on the mechanism s performance in terms of speed Make sure the chosen paper corresponds to your needs 5 5 Cleaning your printer The TA TB DA DB printer mechanism is a high reliability unit which requires very little maintenance but can benefit from cleaning as follows Depending on the environment in which the printer 15 used the printer can accumulate dust Therefore it 15 necessary to clean it periodically in order to maintain good print quality The frequency of cleaning also depends on the environment and the use of the printer but the print head should be cleaned at least once a year or up to one month in heavy duty applications The print head should always be cleaned immediately if the print becomes visibly fainter due to contamination of the
25. trol The history coefficient depends on the speed explained below It gives the reduction in of the TCH nominal heating time which has to be applied on a dot previously heated on N 1 or N 2 dot line Paper feed motor control parameters Min Speed 23 mm sec Max Speed 130 mm sec Ramp Size 32 Speed MIN SPEED MAX SPEED MIN SPEED x Index RAMP SIZE 1 History control Tb COEFA x In 6 25 COEFB Tb 1 716 TbTmp COEFA x In StepTime 1000 COEFB HistTmp 110 x Tb TbTmp Tb if HistTmp lt 0 HistCoef 0 else HistCoef HistTmp TA TB DA DB Printer User Manual Page 29 32 Reference FDE 3107999 Issue Z Index Step Time us Speed mm sec History Coef History control 0 5435 23 3 1 4726 26 2 4180 30 8 Raster N 1 1 1 1 3 3748 33 11 Raster N 1 0 0 1 4 3396 37 13 Raster 3 2 0 1 0 1 5 3105 40 15 6 2860 44 17 HistoryEn 0 1 1 7 2650 47 19 8 2470 51 20 9 2312 54 22 10 2173 58 23 Actual heating time 11 2050 61 24 TCH x 1 HistoryCoef x HistoryEn 12 1940 64 26 13 1842 68 27 14 1753 7 28 15 1672 75 29 16 1598 78 30 17 1530 82 31 18 1468 85 32 19 1411 89 33 20 1358 92 34 21 1309 95 34 22 1263 99 35 23 1221 102 36 24 1181 106 37 25 1144 109 37 26 1109 113 38 27 1076 116 39 28 1045 120 39 29 1015 123 40 30 988 127 41 31 962 130 4 TA TB DA DB Printer User Manual Page 30 32 Reference FDE 3107999 Issue Z Axiohm
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