Seiko SII LTP01-245-11 Technical Reference Download | Manualshive

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1.1 SAFETY PRECAUTIONS

Follow the precautions listed below when designing your product for using safely. Include any necessary
precautions into your operation manual and attach warning labels to your products to ensure safe operation.



Precautions to prevent the thermal head from overheating

When the thermal head heat elements are continuously activated by a CPU or other malfunction,
the thermal head may overheat and may cause smoke and fire. Follow the method described in
Chapter 3 "Detecting abnormal temperatures by hardware" to monitor the temperature of the
thermal head to prevent overheating. Turn the printer off immediately if any abnormal conditions
occur.



Precautions for rising temperatures of the thermal head

Temperature of the thermal head and its peripherals rises very high during and immediately after
printing. Be sure to design the outer case to prevent users from burn injuries by touching them.
Place warning labels to warn users to ensure safe operation. As for thermal head cleaning, warn
users to allow the thermal head to cool before cleaning. In order to allow cooling, secure clearance
between the thermal head and the outer case when designing the outer case.



Precautions for rising temperatures of the motor

Temperature of the motor and its peripherals rises very high during and immediately after printing.
Be sure to design the outer case to prevent users from burn injuries by touching them. Place
warning labels to warn users to ensure safe operation. In order to allow cooling, secure clearance
between the motor and the outer case when designing the outer case.



Precautions for sharp edges of the printer

The printer may have some sharp edges and cutting surfaces of the metal parts. Be sure to design
the outer case to prevent users from injuring himself/herself by touching the sharp edges and place
warning labels to warn users to ensure safe operation.



Precautions for motor drive

The hair may get caught in the exposed platen and the gears. Control the motor drive not to drive
when the outer case and the platen unit is in open state. Also, make sure to design the outer case so
as not to touch the platen and the gears and also prevent any objects from getting caught. Place
warning labels to warn users to ensure safe operation.

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Summary of Contents for SII LTP01-245-11

Page 1: ...LTP01 245 11 12 18 THERMAL PRINTER MECHANISM TECHNICAL REFERENCE U00129248807 ...

Page 2: ...rred to as 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 make changes without notice to the specifications and materials contained herein and shall not be responsible for any damages including con...

Page 3: ... able to use the product properly SII has not investigated the intellectual property rights of the sample circuits included in this manual Fully investigate the intellectual property rights of these circuits before using It is possible to use the LTP01 series for replacing LTPZ245M C384 E thermal printer mechanism hereinafter referred to as LTPZ245M In this manual the description of negative logic...

Page 4: ...nd LTP01 245 18 as an example of the LTP01 245 11 The figure of LTP01 245 12 and LTP01 245 18 illustrates only the differences from LTP01 245 11 Thermal head Connecting terminals Platen gear Platen Platen unit Printer main body Out of paper sensor Motor Platen position sensor LTP01 245 12 LTP01 245 18 Printer mechanism PREFACE 2 ...

Page 5: ...eristics of Thermal Head 3 18 3 4 4 Timing Chart 3 20 3 4 5 Thermal Head Heat Element Resistance 3 20 3 4 6 Maximum Current Consumption 3 20 3 5 CONTROLLING THE ACTIVATION PULSE WIDTH FOR THERMAL HEAD 3 21 3 5 1 Calculation of Activation Pulse Width 3 21 3 5 2 Calculation of Printing Energy 3 22 3 5 3 Adjustment of Thermal Head Resistance 3 22 3 5 4 Adjustment of Thermal Head Drive Voltage 3 23 3 ...

Page 6: ... Platen Holder 6 3 6 2 2 Dimensions for Positioning and Securing the Platen Holder 6 4 6 2 3 Precautions for Securing the Platen Holder 6 5 6 3 LAYOUT OF THE PRINTER MECHANISM AND THE THERMAL PAPER 6 6 6 4 WHERE TO MOUNT THE PAPER HOLDER 6 7 6 5 DESIGN THE PAPER OUTLET 6 8 6 5 1 Design the Shape of the Paper Outlet 6 8 6 5 2 Mount the Paper Cutter 6 9 6 6 HOW TO CONNECT A PAPER WINDER 6 10 6 6 1 P...

Page 7: ... Position Sensor 3 29 Figure 3 13 Sample External Circuit of the Out of Paper Sensor 3 30 Figure 4 1 Connecting Terminals 4 1 Figure 5 1 Timing Chart for Division Printing 5 1 Figure 6 1 Dimensions for Positioning and Securing the Printer Main Body 6 1 Figure 6 2 Dimensions for Positioning and Securing the Platen Unit 6 3 Figure 6 3 Dimensions to Mount the Platen Unit 6 4 Figure 6 4 Recommended La...

Page 8: ...Rise 50 C When the Same Control as the LTPZ245M Is Used 3 14 Table 3 11 Maximum Drive Time min and Paper Feed Length m at Temperature Rise 75 C When the Same Control as the LTPZ245M Is Used 3 14 Table 3 12 DST and Activated Heat Elements 3 17 Table 3 13 Electrical Characteristics of Thermal Head Vdd 3 0 V to 3 6 V 3 18 Table 3 14 Electrical Characteristics of Thermal Head Vdd 4 75 V to 5 25 V 3 19...

Page 9: ...properly and safe You shall evaluate and confirm sufficiently that such products can work properly and safe and shall be liable for any and all claims actions lawsuits demands costs liabilities losses damages and or expenses arising out of or in relating to such products SII has not investigated the intellectual property rights of the sample circuits included in this manual Fully investigate the i...

Page 10: ...ermal head to cool before cleaning In order to allow cooling secure clearance between the thermal head and the outer case when designing the outer case Precautions for rising temperatures of the motor Temperature of the motor and its peripherals rises very high during and immediately after printing Be sure to design the outer case to prevent users from burn injuries by touching them Place warning ...

Page 11: ...ng damaged by static electricity 1 Connect the printer Frame Ground FG connecting area to the Frame Ground FG of the outer case See Chapter 6 OUTER CASE DESIGN GUIDE for details 2 Connect the Signal Ground GND to the Frame Ground FG through approximately 1 MΩ resistance Always detect the outputs of the platen position sensor and out of paper sensor Never activate the thermal head when the platen u...

Page 12: ...ody and the platen unit are not placed in proper position the print defect and the paper jam may occur Therefore pay special attention to it when designing the outer case For the position relation between the printer main body and the platen unit see Chapter 6 OUTER CASE DESIGN GUIDE Design the rotation system of the door and the outer case strong enough to keep the allowable dimensions because st...

Page 13: ...not release the platen unit during printing otherwise this may reduce the efficiency of the printer and may cause damage Do not apply stress to the platen unit during printing The print defect may occur When setting the platen unit the reduction gear may interfere with the platen gear and may cause the platen unit to not be set In such a case release the platen unit and set it again Never pull out...

Page 14: ... roll is shown up The printer is not waterproof and drip proof Prevent contact with water and do not operate with wet hands as it may damage the printer or may cause a short circuit or fire The printer is not dust proof Never use the printer in a dusty place as it may damage the thermal head and paper drive system Do not use the printer in corrosive gas and siloxane atmosphere as it may cause the ...

Page 15: ...8 W70 3mm x D32 7mm x H15 3mm LTP01 245 12 Mass Approx 44 g High print speed Maximum 75mm s print is available Easy operation Platen open mechanism provides easy paper installation Auto loading function Automatic insertion of the thermal paper is enabled by the Auto loading function Maintenance Free No cleaning and no maintenance required Low noise Thermal printing technology realizes low noise pr...

Page 16: ...ted dots 64 dots max Resolution W 8 dots mm H 16 dots mm Paper feed pitch 0 03125 mm Maximum print speed 75 mm s 1 Print width 48 mm Paper width 0 1 58 mm Thermal head temperature detection Thermistor Platen position detection None Mechanical switch Out of paper detection Reflection type photo interrupter Operating voltage range Vp line Vdd line 4 75 V to 9 5 V 3 0 V to 3 6 V or 4 75 V to 5 25 V C...

Page 17: ...r hold force 0 78 N 80 gf or more Dimensions 5 W 69 8 mm D 32 7 mm H 15 3 mm W 70 3 mm D 32 7 mm H 15 3mm Mass Approx 44 g Specified thermal paper Nippon Paper TF50KS E2D Oji Paper Co Ltd PD150R PD160R N Papierfabrik August Koehler AG KT55F20 Mitsubishi Paper mills limited F220VP Jujo Thermal AF50KS E AP50KS FZ Mitsubishi Hi Tech Paper F5041 KSP P300 1 Print speed changes according to the processi...

Page 18: ... CONFIGURATION Figure 3 1 shows print dot pitch Figure 3 2 shows print area 48mm 384dot 0 125mm 0 125mm 0 0625mm Figure 3 1 Print Dot Pitch 58 0 1 mm Paper width 5 mm 48 mm Printing width 5 mm Figure 3 2 Print Area ...

Page 19: ... PM type step motor Drive method Bi polar chopper Excitation 1 2 phase Winding resistance per phase 10 5 Ω phase 10 Motor drive voltage Vp 4 75 V to 9 5 V Motor controlled current 325 mA phase 1 450 mA phase 2 Drive pulse rate 2400 pps max 1 During paper feeding print 2 During auto loading the thermal paper See 3 3 5 Motor Drive Method for how to set the motor controlled current ...

Page 20: ... Condition Motor Controlled Current Fixed VLIM Terminal Input Voltage Paper feeding Printing 325 mA 161 mV to 167 mV Printer Connecting Term inals PH1 PH2 PH3 PH4 MCL1 BD6380EFV IN1A OUT1A IN2A OUT2A IN1B OUT1B IN2B OUT2B PS VREF RNF1 SENSE1 VLIM1 VLIM2 RNF2 SENSE2 CR1 CR2 NC NC 14 10 47μ F 25V Vp 4 18 2 47kΩ FUSE 1A 15 11 19 7 6 24 1 Vdd 16 9 23 3 5 20 12 0 5Ω 1 0 125W 21 13 0 5Ω 1 0 125W 18kΩ 18...

Page 21: ...ding Printing 325 mA 161 mV to 167 mV Auto loading 450 mA 222 mV to 228 mV Printer Connecting Term inals PH1 PH2 PH3 PH4 MCL1 BD6380EFV IN1A OUT1A IN2A OUT2A IN1B OUT1B IN2B OUT2B PS VREF RNF1 SENSE1 VLIM1 VLIM2 RNF2 SENSE2 CR1 CR2 NC NC 14 10 47μ F 25V Vp 4 18 2 47kΩ FUSE 1A 15 11 19 7 6 24 1 Vdd 16 9 23 3 5 20 12 0 5Ω 1 0 125W 21 13 0 5Ω 1 0 125W 18kΩ 18kΩ 680pF 680pF 22 27 29 28 30 A B A B 0 1μ...

Page 22: ...1 step 2 as shown in Table 3 3 START STEP 1st STEP 2nd STEP 3rd STEP 4th STEP 5th STEP 6th STEP 7th STEP 8th STEP PH1 H L PH2 H L PH3 H L PH4 H L 1 dot line MCL1 1 H L MREF 0 1625V 2 0V 1 Set MCL1 to High while the motor is driven 2 0 1625V during paper feeding print 0 225V during auto loading Figure 3 5 Input Voltage Waveforms for the Sample Drive Circuit Table 3 3 Excitation Sequence Input Signa...

Page 23: ...step immediately shift the motor to the sequence of print step 2 Stop step To stop the motor excite the same phase as the last one in the printing step for 65 ms 3 Pause state In the pause state do not excite the motor to prevent to the motor from overheating Even when the motor is not excited holding torque of the motor prevents the thermal paper from moving Input signals for a sample drive circu...

Page 24: ...higher Table 3 4 Maximum Motor Drive Pulse Rate Vp Maximum Motor Drive Pulse Rate 4 75 V 1300 pps 5 5 V 1600 pps 6 5 V 2000 pps 7 5 V 2400 pps 8 5 V 2400 pps 9 5 V 2400 pps During auto loading the thermal paper the motor should be driven lower than the value obtained by equation 2 Equation 2 PM Vp 40 420 pps PM Maximum motor drive pulse rate at Vp pps Vp Motor drive voltage V 5V or higher Table 3 ...

Page 25: ...ation step 4 Hereinafter drive the n th step as same as acceleration step time at n th acceleration step 5 After accelerating up to the maximum motor drive pulse rate PM drive the motor at a constant speed Available to print during acceleration Follow the procedures below if Unable to accelerate the speed according to the acceleration step as shown in Table 3 6 The speed has been reduced at a cert...

Page 26: ... 42 1934 517 10 905 1105 43 1957 511 11 953 1049 44 1980 505 12 999 1001 45 2003 499 13 1044 958 46 2026 494 14 1086 921 47 2049 488 15 1127 887 48 2071 483 16 1167 857 49 2093 478 17 1205 830 50 2115 473 18 1242 805 51 2137 468 19 1278 782 52 2158 463 20 1313 761 53 2179 459 21 1348 742 54 2200 455 22 1381 724 55 2221 450 23 1414 707 56 2242 446 24 1446 692 57 2262 442 25 1477 677 58 2282 438 26 ...

Page 27: ... the motor Verify the performance with your actual device When the same control as the LTPZ245M is used maximum continuous drive time and drive ratio vary See Table 3 9 Table 3 10 and Table 3 11 Table 3 7 Maximum Continuous Drive Time and Drive Ratio Motor drive voltage V p V 9 5V Vp 8 5V 8 5V Vp 7 5V 7 5V Vp 6 5V 6 5V Vp 5 5V 5 5V Vp 4 75V 4 75V Drive Pulse Rate pps or more to less than Maximum C...

Page 28: ... 6 8 20 4 6 9 20 8 7 3 21 9 8 4 25 1 9 7 29 2 1760 1920 6 5 21 6 7 3 24 0 7 8 25 7 12 1 39 9 1920 2080 6 2 22 4 7 2 25 9 8 0 28 8 13 1 47 0 2080 2240 6 6 25 5 7 3 28 3 8 7 34 0 2240 2400 6 5 27 3 7 2 30 2 9 3 39 0 2400 6 6 29 6 7 7 34 4 9 8 44 0 Unusable No drive limitation Set the Drive Pulse Rate according to 3 3 5 Motor Drive Method Table 3 9 Maximum Continuous Drive Time and Drive Ratio When t...

Page 29: ... 18 5 6 5 21 4 8 2 27 0 960 1040 5 8 20 7 6 2 22 4 7 2 25 7 8 5 30 6 1040 1120 5 3 20 8 5 7 22 2 7 3 28 4 1120 1200 5 4 22 8 5 9 24 7 7 4 31 2 1200 5 4 24 2 6 4 28 8 7 8 35 0 Unusable No drive limitation Set the Drive Pulse Rate according to 3 3 5 Motor Drive Method Table 3 11 Maximum Drive Time min and Paper Feed Length m at Temperature Rise 75 C When the Same Control as the LTPZ245M Is Used Moto...

Page 30: ...a high print ratio for longer length Do not perform continuous printing to prevent the motor from overheating Refer to Chapter 3 Motor Drive Method to set a pause time Surface of thermal paper may get scratched by backward feed The backward feed may cause paper skew and jams depending on paper roll layout and designing of paper holder Be sure to confirm performance with your product before using t...

Page 31: ... in accordance with the stored print data In this printer a division printing by 6 blocks is available Each block has 64 dots heat elements 3 4 1 Structure of the Thermal Head Figure 3 7 shows the thermal head block diagram the printer Table 3 12 show the relationship between DST and activated heat elements D I CLK LAT DST6 DST5 DST2 DST1 Vdd G ND Vp Shift Register LAT Register Output Driver Heati...

Page 32: ...to 384 64 3 4 2 Print Position of the Data 384 bit data 1 to 384 transferred through DI are printed as shown in Figure 3 8 Data in Paper feed direction Paper Print surface Data 1 2 3 4 5 6 382 383 384 Printer mechanism Data input sequence 1 2 3 4 5 6 382 383 384 Thermal paper Paper feed direction Data in Print surface Printer mechanism Data input sequence Data Figure 3 8 Transfer Data and Print Po...

Page 33: ... 0 3 3 3 6 V Logic current Idd fDI 1 2fCLK 15 0 mA High VIH CLK DI LAT DST 0 8 Vdd Vdd V Input voltage Low VIL CLK DI LAT DST 0 0 2 Vdd V High IIH DI VIH Vdd 0 5 μA DI input current Low IIL DI VIL 0 V 0 5 μA High IIH DST VIH Vdd 35 0 μA DST input current High active Low IIL DST VIL 0 V 5 0 μA High IIH CLK VIH Vdd 1 0 μA CLK input current Low IIL CLK VIL 0 V 1 0 μA High IIH LAT VIH Vdd 1 0 μA LAT i...

Page 34: ... CLK DI LAT DST 0 8 Vdd Vdd V Input voltage Low VIL CLK DI LAT DST 0 0 2 Vdd V High IIH DI VIH Vdd 0 5 μA DI input current Low IIL DI VIL 0 V 0 5 μA High IIH DST VIH Vdd 60 0 μA DST input current High active Low IIL DST VIL 0 V 8 0 μA High IIH CLK VIH Vdd 1 0 μA CLK input current Low IIL CLK VIL 0 V 1 0 μA High IIH LAT VIH Vdd 1 0 μA LAT input current Low IIL LAT VIL 0 V 1 0 μA CLK frequency fCLK ...

Page 35: ...162 0 Ω to 198 0 Ω 3 4 6 Maximum Current Consumption Since the maximum current consumption may reach the values calculated using equation 2 when the thermal head is driven the number of simultaneously activated dots should be determined not to exceed power supply capacity Also allowable current for the cable material and the voltage drop on the cable should be cared well Equation 2 min H SA P R Vp...

Page 36: ...he thermal head This product is possible to be driven by the same control specified for LTPZ245M 3 5 1 Calculation of Activation Pulse Width Each value can be calculated according to the steps in Section 3 5 2 to 3 5 6 and the activation pulse width t can be calculated by substituting each value into the equation 3 Equation 3 C V R E t 2 t Thermal head activation pulse width ms E Printing energy m...

Page 37: ...Paper Co Ltd PD160R N 0 3238 0 002245 Mitsubishi Paper mills limited F220VP 0 3374 0 002683 TX 25 0 3061 0 003542 AF50KS E TX 25 0 3061 0 002260 Jujo Thermal AP50KS FZ 0 3237 0 003306 Mitsubishi Hi Tech Paper F5041 0 3376 0 002703 TX 25 0 3503 0 004436 Papierfabrik August Koehler AG KT55F20 TX 25 0 3503 0 001339 KSP P300 0 3254 0 003478 3 5 3 Adjustment of Thermal Head Resistance The adjusted resi...

Page 38: ...tage V 3 5 5 Setting of Activation Pause Time In order to protect the thermal head heat elements when the same heat element dots are activated continuously on the successive dot line determine the activation pulse cycle the time from the start of the preceding activation to the start of the current activation which meets equation 8 to secure the pause time Equation 8 μs 500 t W W The activation cy...

Page 39: ...example To calculate the activation pulse width t1 for 2nd half dot line at 3rd step and 4th step W 1 shown in the figure below should be set as W To calculate the activation pulse width t2 for 5th half dot line at 9th step and 10th step W 2 shown in the figure below should be set as W Figure 3 10 Time from the start of the preceding thermal head activation to the start of the current thermal head...

Page 40: ...36 0 497 0 465 0 438 20 0 870 0 744 0 654 0 586 0 533 0 490 0 455 0 426 0 401 30 0 789 0 675 0 593 0 531 0 483 0 444 0 412 0 386 0 363 40 0 707 0 605 0 531 0 476 0 433 0 398 0 370 0 346 0 326 50 0 626 0 535 0 470 0 421 0 383 0 352 0 327 0 306 0 288 60 0 544 0 466 0 409 0 366 0 333 0 306 0 284 0 266 0 251 7 5 70 0 463 0 396 0 348 0 311 0 283 0 260 0 242 0 226 0 213 0 0 792 0 682 0 601 0 540 0 492 0...

Page 41: ... 3 11 and Table 3 18 Equation 9 298 1 T 273 1 B EXP R R X 25 X RX Resistance at TX C Ω R25 Resistance at 25 C 30 5 kΩ B B value 3950K 2 TX Temperature detected by thermistor C EXP A The A th power of natural logarithm e 2 71828 1 10 100 1000 20 15 10 5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 Temperature Resistance kΩ Figure 3 11 Temperature Characteristics of the Thermistor T...

Page 42: ...tor Temperature C Thermistor Resistance kΩ 20 316 97 15 234 22 10 175 07 5 132 29 0 100 99 5 77 85 10 60 57 15 47 53 20 37 61 25 30 00 30 24 11 35 19 51 40 15 89 45 13 03 50 10 75 55 8 92 60 7 45 65 6 25 70 5 27 75 4 47 80 3 80 85 3 25 90 2 79 95 2 41 100 2 09 ...

Page 43: ...o be activated by malfunction of the control unit CPU the software for detecting abnormal temperatures may not function properly resulting in overheating of the thermal head Overheating of the thermal head not only may damage the thermal head but also may cause smoke fire and burn injuries Always use hardware together with software for detecting abnormal temperatures to ensure personal safety If t...

Page 44: ...ral Specifications Table 3 19 shows about the general specification Table 3 19 General Specifications of Platen Position Sensor Item Specifications Rated voltage 5 0 VDC Rated current 1 mA Contact resistance 3 Ω max Figure 3 12 shows sample external circuit of the platen position sensor Platen position sensor GND CPU Port Vdd HS GND 0 1μF The HS signal is High when the platen is in open state LTP0...

Page 45: ...ve system and the life of the printer may be shortened significantly 3 7 1 General Specifications Table 3 20 shows about the out of paper sensor used for this printer Table 3 20 Out of Paper Sensor Item Specifications Model GP2S60B Manufacturer Sharp Corporation Figure 3 13 shows sample external circuit of the out of paper sensor Vdd 470pF Out of paper sensor 47kΩ 1 220Ω 1 LTP01 245 PS ps V Gps GN...

Page 46: ...rminals Recommended Connectors 30 FCI INC SFW30R 2STE1LF right angle top contact SFW30S 2STE1LF vertical SLW30S 1C7LF vertical MOLEX INC 0522073060 right angle top contact 0520893019 right angle top contact 0526103072 vertical 0520303029 vertical 4 2 CONNECTING TERMINALS Figure 4 1 shows the terminal configuration of the connecting terminals and Table 4 2 shows terminal assignments of the connecti...

Page 47: ...rial input 9 CLK Synchronizing for print data transfer 10 GND GND 11 GND GND 12 DST6 Thermal head print activation instruction 6 block 13 DST5 Thermal head print activation instruction 5 block 14 DST4 Thermal head print activation instruction 4 block 15 Vdd Logic power supply 16 TH 17 TH Thermistor the one is used for GND 18 DST3 Thermal head print activation instruction 3 block 19 DST2 Thermal he...

Page 48: ...r steps and activate the thermal head once in every two steps Figure 5 1 shows a timing chart for driving using six division printing and one division printing First dot line indicates six division printing and second dot line indicates one division printing on the below timing chart The number of simultaneously activated dots should not exceed 64dots PH1 PH2 PH3 PH4 CLK DI LAT DST1 DST2 DST3 DST4...

Page 49: ...ive signal is completed input its 2nd step It is not necessary to synchronize the activation of the thermal head After printing the 1st half dot line at the 1st dot line start activation of the thermal head at the 2nd step of the motor drive signal by synchronizing DST1 with the motor and print the 2nd half dot line at the 1st dot line by using DST1 to DST6 After the 3rd step of the motor drive si...

Page 50: ...ed maximum number of the activating dots for every 1 dot line printing Logical blocks are predetermined for every 1 dot line printing The maximum current consumption can be controlled within a constant value Since the order of the printing block and print speed are changed in each dot line according to the content of the print data print quality in this method may be lower than that in fixed divis...

Page 51: ...se to position the printer main body for the positioning holes 1 and 2 The height of the bosses on the outer case must be 0 7 0 1mm Secure the printer main body using screws at the holes A and B Design a hook for the concave C 2 3 0 15 0 0 7 2 3 0 1 0 2 2 0 0 1 O 10 3 20 5 59 15 62 2 50 5 57 95 2 4 8 9 C Fixing hook 4 7 A B C Fixing hook Positioning boss 1 2 C Unit mm General tolerance for dimensi...

Page 52: ...t surface and prevent from vibration To prevent the thermal head from being damaged by static electricity connect the hole A and B shown in Figure 6 1 to the Frame Ground FG Connect the signal ground GND to frame ground FG using a 1MΩ resistor so that the electric potential of the signal ground GND of the thermal head and that of the frame ground FG of the printer are equal Pay attention not to da...

Page 53: ...igure 6 2 shows a recommended shape of the Platen Holder platen gear platen holder platen dia A A Section A A Center of platen at fixed 3 7 4 2 22 1 0 4 1 2 6 8 0 5 0 2 8 0 0 2 3 5 0 1 0 2 9 R 0 5 R 0 5 R 0 5 R 0 5 R 1 75 R 1 R 1 Paper guide R 0 5 R 0 5 2 1 1 5 Unit mm General tolerance for dimensions 0 1 Figure 6 2 Dimensions for Positioning and Securing the Platen Unit 6 3 ...

Page 54: ...e rotation system for the platen holder when opening closing the platen unit mounted on the outer case 25 45 0 3 4 2 1 1 0 5 50 100 X 0 3 Positioning hole 1 Rotation center for platen holder 10 7 0 3 Unit mm General tolerance for dimensions 0 1 Figure 6 3 Dimensions for Positioning and Securing the Platen Unit 6 4 ...

Page 55: ...n the positioning holes 1 2 and the center of platen holder rotation should be 0 2 or less Design the platen holder with special care to its intensity so that it can withstand the force caused by opening closing the printer main body and the platen unit Do not use materials such as metal material for the platen holder If using the platen unit cannot be set into the platen holder Verify the perform...

Page 56: ... paper holder as shown on the Figure 6 2 so the thermal paper is led to paper inlet of the printer properly in order to improve paper detection stability If the paper guide cannot be set up design paper insertion angle constantly to be 22 degrees or more as shown on the Figure 6 2 9 0 6 0 Paper outlet angle 2 2 Paper Paper eject angle Thermal paper Unit mm Figure 6 4 Recommended Layout between the...

Page 57: ...e even if it is below 0 49N Design the paper holder so as not to make these conditions and verify the performance with your actual device ex In case that the paper roll wobbles in the paper holder In case that tension of the thermal paper between the paper roll and the printer changes rapidly In addition do not use following types of the paper roll Expanded paper roll Deformed paper roll Roll core...

Page 58: ...t thermal paper can be ejected without changing its eject direction Do not change the paper eject direction around the paper eject of printer mechanism If changing the paper eject direction verify the performance with your actual device If using a paper winder to wind the thermal paper allow the paper to eject naturally for at least 4mm in length from the center of the platen Design the outer case...

Page 59: ...mal paper can be cut with less force than paper holding force Design the blade edge of the cutter as shown in the right figure of so that the blade edge can guide the thermal paper edge after cutting If designing the blade edge as shown in the left figure of Figure 6 7 the paper edge may be caught by the blade edge and result in the thermal paper edge to be caught inside of the cutter Figure 6 7 B...

Page 60: ...ckwards Backward feed may cause a failure of winding The winding force should be 0 49N 50gf or less Be aware that the printing problem may occur when the tension changed rapidly even though the winding force is below 0 49N Be careful not to touch the platen and also prevent any objects from getting caught in the paper winder ...

Page 61: ...mensions of the platen unit Figure 7 3 and Figure 7 3 show the external dimensions of LTP01 245 11 LTP01 245 12 and LTP01 245 18 respectively 58 1 3 4 Φ 8 Φ 3 4 Φ 65 8 4 2 Φ 7 6 Φ Unit mm General tolerance 0 5 Figure 7 1 External Dimensions of the Platen Unit 7 1 ...

Page 62: ...2 6 3 9 95 2 31 3 95 3 35 56 45 R 2 7 2 1 0 05 0 O 3 O 2 1 0 0 5 0 8 9 0 05 O 2 0 05 0 O 2 3 O 2 5 0 1 2 1 0 1 3 65 0 2 2 2 P a p e r I n l e t A n g l e 10 3 285 Paper Inlet Position 8 5 P a p e r E j e c t A n g l e O 8 Unit mm General tolerance 0 5 Figure 7 2 External Dimensions of the Printer LTP01 245 11 18 7 2 ...

Page 63: ...62 6 3 9 95 2 31 3 95 3 35 56 45 R 2 7 2 1 0 05 0 O 3 O 2 1 0 0 5 0 8 9 0 05 O 2 0 05 0 O 2 3 O 2 5 0 1 2 1 0 1 3 65 0 2 2 2 P a p e r I n l e t A n g l e 10 8 5 P a p e r E j e c t A n g l e O 8 3 285 Paper Inlet Position Unit mm General tolerance 0 5 Figure 7 3 External Dimensions of the Printer LTP01 245 12 7 3 ...

Page 64: ...ore from the top surface of the printer mechanism b Uninstall the thermal paper Uninstall the thermal paper in the same manner for installing the thermal paper c Clearing a paper jam Uninstall the thermal the paper in the same manner for installing the thermal paper 2 Procedures for installing the thermal paper by auto loading function automatic insertion when the platen block is in set status a P...

Page 65: ...y cause the platen unit to not be set In such a case release the platen unit and set it again If the thermal paper is skewed feed the thermal paper until the thermal paper becomes straight or install the thermal paper again Remove the jamming paper with the platen unit released Do not pull the thermal paper by force because severe damages may occur If the thermal head is remained in contact with t...

Page 66: ...o not clean the thermal head immediately after printing because the temperature of the thermal head and its peripherals rises very high during and immediately after printing Clean the thermal head with the platen unit released Do not use sandpaper a cutter knife or anything which may damage the heat element for cleaning 8 3 ...

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