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Seiko LTPH245, Техническое описание

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3-19

3.6  CONTROLLING THE HEAD ACTIVATION (DST) PULSE WIDTH

 

 

 

3.6.1  Calculation of Head Activation Pulse Width

 

 

 
Head activation pulse width is calculated using the following equation (3).   
To execute high quality printing using the printer, the value that is calculated using the following equation 
(3) must be adjusted according to the environment the printer is used in.  Calculate each value used 
according to the steps in 

Sections 3.6.2

 to 

3.6.7

 and control them so that the pulse width with the t value 

obtained by substituting each value into the equation (3) is applied. 
Printing using too high of a voltage or too long of a pulse width may shorten the life of the thermal head. 
 
Equation (3): 

 
 
 
 
 

t :  Head pulse width (ms) 

 

E :  Applied energy (mj) 

See 

Section 3.6.2

. 

 

V :  Applied voltage (V) 

See 

Section 3.6.3

. 

 

R :  Head resistance (

) See 

Section 3.6.4

. 

 

C :  Head pulse term coefficient 

See 

Section 3.6.6

. 

 

D :  Heat storage coefficient 

See 

Section 3.6.7

. 

 

3.6.2  Calculation of Applied Energy

 

 

 
Applied energy should be in accordance with the temperature of the thermal head and the environment 
the printer is used in.  
The thermal head has a built-in thermistor.  Measure the temperature using thermistor resistance. 
Standard applied energy is based on a temperature of 25

C.  Calculate the printing energy using 

equation (4) and the temperature coefficient. 
 
Equation (4): 
 
 

E= (0.260 - T

C 

 (T

X

 - 25) ) 

 

 

 

T

X

:  Detected temperature using the thermistor (

C) 

1

 

 

T

C

 :  Temperature coefficient 

0.003373 

 

 

1  The thermistor resistance value at T

X

 (

C).  See 

Section 3.6.9

. 

 

       E 

 R 

t =             

 C 

 D 

         V

2

 

Содержание LTPH245

Страница 1: ...Seiko Instruments Inc LTPH245 LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE U00055332011 ...

Страница 2: ...tained herein and shall not be responsible for any damages including consequential caused by reliance on the materials presented including but not limited to typographical arithmetic or listing errors is a trademark of Seiko Instruments Inc LTPH245 LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE Document Number U00055332011 First Edition December 1999 Second Edition May 2000 Third Edition Decem...

Страница 3: ...ending on the model specific model name is mentioned clearly Chapter 1 Precautions describes safety design and handling precautions Read it thoroughly before designing so that you are able to use the product properly SII has not investigated the intellectual property rights of the sample circuits included in this technical reference Fully investigate the intellectual property rights of these circu...

Страница 4: ...sition of the Data 3 14 3 5 3 Head Resistance 3 15 3 5 4 Head Voltage 3 16 3 5 5 Peak Current 3 16 3 5 6 Thermal Head Electrical Characteristics 3 17 3 5 7 Timing Chart 3 18 3 6 CONTROLLING THE HEAD ACTIVATION DST PULSE WIDTH 3 19 3 6 1 Calculation of Head Activation Pulse Width 3 19 3 6 2 Calculation of Applied Energy 3 19 3 6 3 Calculation of Head Activation Voltage 3 20 3 6 4 Calculation of Hea...

Страница 5: ...MING 5 2 CHAPTER 6 HOUSING DESIGN GUIDE 6 1 SECURING THE PRINTER 6 1 6 1 1 Printer Mounting Method 6 1 6 1 2 Mounting Platen Block 6 2 6 1 3 Precautions for Securing the Printer 6 4 6 2 LAYOUT OF PRINTER AND PAPER 6 5 6 3 WHERE TO MOUNT THE PAPER HOLDER 6 5 6 4 SETTING THE PAPER 6 5 6 5 POSITIONING THE PAPER CUTTER 6 6 6 6 OUTER CASE STRUCTURE 6 7 CHAPTER 7 APPEARANCE AND DIMENSIONS CHAPTER 8 LOAD...

Страница 6: ... Code Label 3 29 4 1 Thermal Head Control Terminals 4 1 4 2 Motor and Sensor Terminals 4 3 5 1 Example of Timing Chart of the Thermal Head Driving 5 1 5 2 Example of Motor Drive Timing Chart 5 3 6 1 How to secure the printer 6 1 6 2 How to secure the Platen Block 6 2 6 3 Mounting Position of the Platen Block 6 3 6 4 Paper Path 6 5 6 5 Paper Cutter Mounting Position 6 6 6 6 The Blade of the Paper C...

Страница 7: ... 12 3 6 Blocks and Activated Heat Elements 3 15 3 7 Head Resistance Ranks 3 15 3 8 Head Voltage 3 16 3 9 Thermal Head Electrical Characteristics 3 17 3 10 Activation Pulse Width 3 23 3 11 Temperature and Thermistor Resistance 3 25 3 12 Out of Paper Sensor 3 27 4 1 Recommended Connectors 4 1 4 2 Thermal Head Control Terminal Assignments 4 2 4 3 Motor and Sensor Terminals Assignments 4 3 ...

Страница 8: ...low the method described in Section 3 6 10 to monitor the temperature of the thermal head to prevent overheating Turn the printer off immediately if any abnormal conditions occur Preventing the user from touching the thermal head and motor Warn the user not to touch the thermal head its periphery or motor as they are hot during and immediately after printing Failure to follow this instruction may ...

Страница 9: ...rically corroded In addition design the printer so that the signal GND of the thermal head and the frame GND of the printer mechanism become the same electric potential Wire resistance should be 50 m or less however the less the better between the power supply and the Vp and the GND terminals on the thermal head controller Maintain a considerable distance from signal lines to reduce electrical int...

Страница 10: ...40 steps in the normal direction during initialization a time after backward feeding and a time after setting releasing the platen block If printing at a high print ratio for longer length non printing area may be colored Verify the performance with your actual device For the position in which the platen block should be fixed and the way it is mounted follow the instructions shown in Figure 6 3 Si...

Страница 11: ...rp or hard objects as it may damage the heat element If the thermal head remains in contact with the platen the platen may become deformed and deteriorate print quality If the platen is deformed the uneven surface of the platen can be recovered by feeding paper for a while Never connect or disconnect cables with the power on Always power off the printer first When printing a black or checkered pat...

Страница 12: ... 8 mm in width 38 mm in depth 16 mm in height and approximately 46 g in weight Improved operability The platen roller can be released easily by lever operation allowing easy paper installation and head cleaning High resolution printing A high density print head of 8 dots mm produces clear and precise printing Longevity The mechanism is maintenance free with a long life of 50 km print length and or...

Страница 13: ...f outer case The printer mechanism is designed to fit easily into the outer case allowing for reduced number of outer case parts 1 The external dimensions exclude those of the lever and platen frame 46 g in weight includes all parts 2 Print speed differs depending on working and environmental conditions ...

Страница 14: ...4 5 V to 5 5 V Current consumption For driving the head VP For driving the motor VP For head logic Vdd Average 1 5 A at 5 V 2 2 A at 7 2 V 2 6 A at 8 5 V 2 Maximum 1 6 A at 5 V 2 3 A at 7 2 V 2 7 A at 8 5 V 2 Maximum 0 46 A Maximum 0 01 A 1 Maximum printing speed is attained with the following conditions When the driving voltage is 5 V the character size is a 24 dot font the line spacing is 16 dot...

Страница 15: ...er Industries TP50KJ R 65 m paper from Nippon Paper Industries AP50KS E 65 m paper from Nippon Paper Industries HP220A 65 m paper from Mitsubishi Paper Industries PD160R N 75 m paper 4 from Oji Paper Industries KT55F20 Normal Thermal Paper from Koehler AG F5041 75 m paper from Mitsubishi Hitec Paper AF50KS E 75 m paper from Jujo thermal Ltd 3 Outside this range prining may blot or be light 4 When ...

Страница 16: ...he printer contains a thermal head with 384 heat elements dot size Figure 3 1 Heat Element Dimensions Figure 3 2 Print Area 48 mm 384 DOTS 0 125 mm 0 125 mm 58 mm PAPER WIDTH 48 mm PRINTING WIDTH 5 mm 0 125 mm PAPER FEED PITCH 5 mm 0 1 ...

Страница 17: ... and then 40 steps in the normal direction during initialization a time after backward feeding and a time after setting releasing the platen block During paper feeding the motor should be driven lower than the value obtained by equation 1 Equation 1 Vp 165 220 pps max 1000 pps During printing the motor drive frequency should be adjusted according to working conditions such as voltage temperature n...

Страница 18: ...Number of phases 4 phase Drive method Bipolar chopper Excitation 2 2 phase Winding resistance per phase 14 10 Rated voltage 4 2 8 5 V Rated current 0 23 A phase 0 15A phase 1 Maximum current consumption 0 46 A Drive frequency 50 1000 pps according to drive voltage 1 See 3 4 3 Precautions for Driving the Motor ...

Страница 19: ... 4 2 13 17 14 13 20 11 1 9 4 1 3 2 15 6 1 15 14 7 6 10 12 12 2 3 18 19 6 15 4 5 0 51 1 1 2W 0 51 1 1 2W 10 F 50V 10 F 50V 1K 1 1K 1 3K 1 3K 1 10K 10K 74HC32 74HC32 NC NC 0 1 F PH1 Vdd Vcc Vdd Vdd Vdd Vdd Vp Vp B A B A 0 01 F 10 10 1 8K 1 1SS294 TE85L F PH2 PH3 PH4 CTCRL 0 01 F 10 10 0 01 F 10 10 0 01 F 10 10 18 3 2 LB1843V E LB1843V E 74HC123A 5 17 9 12 Figure 3 3 Sample Drive Circuit ...

Страница 20: ...ther hand to rotate the motor in a reverse direction drive the motor in the reverse order of step 4 step 3 step 2 step 1 step 4 step 3 Table 3 4 Excitation Sequence Signal Name Sequence Step 1 Step 2 Step 3 Step 4 A Low High High Low B High High Low Low A High Low Low High B Low Low High High Figure 3 4 Input Voltage Signals for the Sample Drive Circuit H L H L H L H L A B A B 1 DOT LINE ...

Страница 21: ...ate In the pause state do not excite the step motor to prevent the motor from overheating Even when the step motor is not excited it maintains a holding force to prevent paper from sliding 3 Start step To restart the motor from the stop step shift the motor into the printing sequence To restart the motor from the pause no excitation state shift the motor into the printing sequence after outputting...

Страница 22: ...ve the motor for the first step time at a constant speed during the period of the backlash absorption step Frequent normal reverse rotations will reduce the longevity of the printer s driving system In addition after normal reverse rotation note that the writing start position has shifted due to a backlash of the driving system or elasticity transformation of the platen rubber When the motor step ...

Страница 23: ...motor with the 1st setting current for T1 T1 is defined from each period of the motor drive step and Vp voltage as follows How to define T1 unit s When Vp is under 7 2 V T1 Compare the following two values and adopt the smaller one Each period of the motor drive step 500 and 925 9 When Vp is 7 2 V or more T1 Compare the following two values and adopt the smaller one Each period of the motor drive ...

Страница 24: ...ated using equation 1 2 Output first step for the first acceleration step time 3 Output second step for the second acceleration step time 4 Output nth step for the nth step acceleration time 5 After outputting the time calculated using equation 1 the motor is driven at a constant speed The printer can print during acceleration Set the maximum drive speed to 300 pps 3333 s for printing at lower tha...

Страница 25: ...Speed pps Step Time s start 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 152 246 318 379 433 493 547 597 644 687 728 768 805 840 874 907 939 970 1000 6580 6580 4066 3140 2636 2311 2028 1828 1675 1553 1456 1374 1302 1242 1191 1144 1103 1065 1031 1000 ...

Страница 26: ...AT terminal is transferred to the shift register synchronously with the CLK signal then stored in the latch register with the timing of the LATCH signal Inputting the head activation signal DST 1 to 6 activates heat elements in accordance with the printing data stored in the latch register A maximum of six division printing is available for the printer Table 3 7 shows the relationship between DST ...

Страница 27: ...ST2 DST1 TH Vdd GND Vp Shift Register Latch Register Output Driver Heat Element DOT 384 DOT 321 DOT 320 DOT 257 DOT 256 DOT 129 DOT 128 DOT 65 DOT 64 DOT 1 Block6 Block5 Blcok2 Block1 Thermistor Figure 3 8 Thermal Head Block Diagram ...

Страница 28: ...20 64 6 321 384 64 3 5 2 Printed Position of the Data Data dots from 1 to 384 which are transferred through DAT are printed as shown in Figure 3 8 Figure 3 9 Printed Position of the Data LTPH245 PRINTER MECHANISM 1 2 3 4 5 6 382 383 384 PAPER FEED DIRECTION PRINT SURFACE DATA PRINT SEQUENCE PAPER DATA INPUT SEQUENCE 1 2 3 4 5 6 382 383 384 DATA IN ...

Страница 29: ... 8 5 V Head logic voltage Vdd 4 5 to 5 5 V 3 5 5 Peak Current Since the peak current maximum current may reach the values calculated using equation 2 when the thermal head is driven make sure that the allowable current for the cable material and the voltage drop on the cables are well within the specified range Equation 2 Ip Peak current A N Number of dots that are driven simultaneously Vp Head dr...

Страница 30: ...ut voltage Vih CLK DAT LATCH DST 0 8 Vdd Vdd V Low input voltage Vil CLK DAT LATCH DST 0 0 2 Vdd V CLK 3 A DAT 0 5 A LATCH 3 A High input current DST Iih Ta 25 C Vdd 5 0 V Vih 5 0 V 55 A CLK 3 A DAT 0 5 A LATCH 3 A Low input current DST Iil Ta 25 C Vdd 5 0 V Vil 0 V 0 5 A Driver leak current I leak Vp 7 V for 1 bit 1 0 A CLK frequency fclk 4 MHz CLK pulse width t1 See the Timing Chart 80 ns DAT se...

Страница 31: ...3 18 3 5 7 Timing Chart Figure 3 10 Timing Chart ...

Страница 32: ...e life of the thermal head Equation 3 t Head pulse width ms E Applied energy mj See Section 3 6 2 V Applied voltage V See Section 3 6 3 R Head resistance See Section 3 6 4 C Head pulse term coefficient See Section 3 6 6 D Heat storage coefficient See Section 3 6 7 3 6 2 Calculation of Applied Energy Applied energy should be in accordance with the temperature of the thermal head and the environment...

Страница 33: ...the wiring resistance Calculate the head resistance using equation 6 Equation 6 RH Head resistance 178 5 25 Wiring resistance in the thermal head RC Common terminal wiring resistance in the thermal head 0 2 rC Wiring resistance between VP and GND 1 N Number of dots driven simultaneously 1 It indicates a series resistance of wire and relay switching circuits used between the FFC terminals and power...

Страница 34: ...he current activation start which conforms to equation 7 to reserve the pause time Equation 7 W t 0 5 ms W Activation period of 1 dot line ms 3 6 6 Head Activation Pulse Term Coefficient Make adjustments using the head activation pulse term coefficient equal motor drive frequency as the printing density changes by the printing speed According to equations 8 calculate compensation coefficient C of ...

Страница 35: ...rection is not needed set 1 as the heat storage coefficient The heat storage coefficient is calculated as follows 1 Prepare the heat storage software counters to simulate heat storage a Heat storage due to head activation The heat storage counter counts up in each print period as follows T T T Heat storage counter value N Number of the activated dots b Radiation The heat storage counter value is m...

Страница 36: ... 66 0 62 0 60 0 58 0 56 0 55 0 54 80 0 52 0 48 0 45 0 43 0 41 0 40 0 39 0 38 0 37 0 1 87 1 72 1 62 1 54 1 48 1 43 1 39 10 1 68 1 55 1 46 1 39 1 34 1 29 1 26 1 23 1 20 20 1 50 1 39 1 30 1 24 1 19 1 15 1 12 1 10 1 07 30 1 32 1 22 1 14 1 09 1 05 1 01 0 98 0 96 0 94 0 93 8 0 40 1 14 1 05 0 99 0 94 0 90 0 87 0 85 0 83 0 81 0 80 50 0 95 0 88 0 83 0 79 0 76 0 73 0 71 0 69 0 68 0 67 60 0 77 0 71 0 67 0 64...

Страница 37: ... 1 x T 273 1 B EXP 25 R X R RX Resistance at operating temperature Tx C R25 15 kΩ 5 25 C B 3450 k 3 TX Operating temperature C EXP A The Ath power of natural logarithm e 2 71828 Rating Operating temperature range 40 C to 125 C Figure 3 11 Thermistor Resistance vs Temperature RESISTANCE KΩ 1000 100 10 1 40 30 20 10 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE C ...

Страница 38: ... k Temperature C Thermistor Resistance k 40 375 54 40 8 63 35 275 40 45 7 26 30 204 55 50 6 14 25 153 76 55 5 22 20 116 89 60 4 46 15 89 82 65 3 83 10 69 71 70 3 30 5 54 61 75 2 86 0 43 17 80 2 48 5 34 42 85 2 17 10 27 66 90 1 90 15 22 40 95 1 67 20 18 27 100 1 47 25 15 00 30 12 40 35 10 31 ...

Страница 39: ...t CPU malfunctions the software for detecting abnormal temperatures may not function properly resulting in overheating of the thermal head Overheating of the thermal head may cause damage to the thermal head or injury Always use hardware in conjunction with software for detecting abnormal temperatures to ensure personal safety If the control unit malfunctions it may be impossible to prevent damage...

Страница 40: ...n the life of the head significantly If the motor is drived when it is out of paper a load is put on the reduction gear and the life of the gear may be shortened Table3 12 shows about the out of paper sensor used for this printer Table 3 12 Out of Paper Sensor Item Specification Type CNB1001 Rank S Manufacturer Panasonic Corporation Figure3 12 shows sample external circuit of the out of paper sens...

Страница 41: ...ot activated when the platen block is open by detecting output of the platen position sensor 3 8 1 General Specification Maximum rating DC30V 0 5A Connection resistance 200 m or less 3 8 2 Sample External Circuit Figure 3 13 Sample External Circuit of the Platen Position Sensor Note that there is a time lag between operation of the platen position sensor and completion of pressurization to thermal...

Страница 42: ...ade in September 2004 See Figure 7 1 LTP1245D C384 E Appearance and Dimensions for labeling position 1 Manufactured year 2004 2 Model code LTP1245D C384 E 3 Manufactured month September X October Y November Z December ３ ４ ５ ６ ７ ８ ９ ０ ２ １ １２３４５６７８９ＸＹＺ ＬＴＰＨ２４５Ｄ Ｃ３８４ Ｅ Figure 3 14 Model Code Label ...

Страница 43: ...unctions Number of Pins Recommended Connectors in the external circuit side 1 Thermal head control 20 Molex Co Ltd 52044 2045 horizontal type 52045 2045 vertical type 5597 20APB7F horizontal type 5597 20CPB7F vertical type 2 Motor control Out of paper sensor Platen position detection 9 Molex Co Ltd 53047 0910 vertical type 53048 0910 horizontal type 51047 0900 transmission type 4 1 THERMAL HEAD CO...

Страница 44: ...memory storage 9 DST6 Input Thermal head print activation instruction signal 10 DST5 Input Thermal head print activation instruction signal 11 DST4 Input Thermal head print activation instruction signal 12 DST3 Input Thermal head print activation instruction signal 13 DST2 Input Thermal head print activation instruction signal 14 DST1 Input Thermal head print activation instruction signal 15 TH Th...

Страница 45: ...r and Sensor Terminals Assignments Terminal Number Signal Name Function 1 A Motor drive signal 2 A Motor drive signal 3 B Motor drive signal 4 B Motor drive signal 5 VPS LED anode Power supply side of the out of paper sensor 6 PS Photo transistor Collector output of a photo transistor 7 GND Out of paper sensor GND 8 GND Platen position sensor GND 9 HS Platen position sensor output 1 9 ...

Страница 46: ...einforcement portion of the FFC Do not bend the FFC If the FFC must be bent unavoidably try to do so without removing the reinforcement sheet from the reinforcement portion of the FFC Always remove or install the motor and sensor connector vertically while holding the connector housing If the connectors are not connected properly it may damage the printer cables or connectors ...

Страница 47: ...ation pulse Setting the DST on High drives the heat elements of the thermal head Select the block to be activated and drive for the time calculated using the formula shown in 3 6 CONTROLLING THE HEAD ACTIVATION DST PULSE WIDTH then set the DST to Low Figure 5 1 shows the example of timing chart of the thermal head driving 1 The print data for next dot line can be transferred immediately after stor...

Страница 48: ...After setting DST to High set DST to Low when the driving time calculated in 3 6 CONTROLLING THE HEAD ACTIVATION DST PULSE WIDTH has passed Move to the 2nd step after completion of the 1st step time of the motor and the activation of blocks 1 3 5 1st line 2nd step Drive the motor by one step 2nd step As to how much step time is output compare Tm with the time that was taken in the previous step 1 ...

Страница 49: ...tivate blocks 1 3 and 5 in the same manner as the 1st line 2nd line 2nd step Drive the motor by one step 4th step As to how much step time is output compare Tm with the time that was taken in the previous step 1 in case Tm the time that was taken in the previous step the next closest acceleration step time to the previous step time or Tm which is longer is output 2 in case Tm the time that was tak...

Страница 50: ...hart Figure 5 2 Example of Motor Drive Timing Chart A B A B CLK DST 1 3 5 Block 2 4 6 Block 1 3 5 Block 2 4 6 Block DAT LATCH 2 ND STEP OF THE 1 ST DOT LINE 1 ST STEP OF THE 2 ND DOT LINE 2 ND STEP OF THE 2 ND DOT LINE 1 ST STEP OF THE 1 ST DOT LINE START STOP ...

Страница 51: ...in the 3 locations shown below a b c Holes A and B are used for positioning the main body of the printer See CHAPTER 7 APPEARANCE AND DIMENSIONS for locations and dimensions Figure 6 1 How to Secure the Printer Recommended Screws The recommended mounting screws are as follows 1 Screw M2 0 cross recessed pan head machine screw 2 Screw Pan head tapping screw 2 0 to secure resinated material CHAPTER ...

Страница 52: ...A and B Figure 6 2 How to Secure the Platen Block Recommended Screws The recommended mounting screws are as follows Screw M2 0 cross recessed pan head machine screw The nominal size of the screw should be the wall thickness of the outer case plus 2 mm To secure the platen block to the wall of a thickness of 2 mm screws of the nominal size of 4 mm should be used Platen Block Screw 2 pieces ...

Страница 53: ...se failure when installing and detaching the platen as well as printing failures Therefore mount the platen block correctly Figure 6 3 Mounting Position of the Platen Block Ensure proper clearance for fitting of the frame unit that fastens the printer and the frame unit that fastens the platen block Also make sure that excessive stress is not applied to the printer mounted in the equipment Unit mm...

Страница 54: ... mm to compensate for the head moving If the FFC for the thermal head control touches the bottom of the outer case the FFC will disconnect and or short circuit Leave a space of approximately 0 3 mm between the bottom of the outer case where the FFC passes through and the bottom of the printer mechanism Secure the platen block to the printer correctly as shown in Figure 7 1 The platen block should ...

Страница 55: ...r holder cover For the rotation support point see CHAPTER 7 APPEARANCE AND DIMENSIONS 6 4 SETTING THE PAPER Follow these precautions when setting the paper Be sure to use the recommended paper described in this technical reference Place the paper roll into the holder facing the thermal surface outward Also do not use paper with edges that are pasted or have turnups at the start of the roll If they...

Страница 56: ... the edge of the paper cutter and the position reference hole A of the printer is from 6 9 to 7 5 mm Figure 6 5 shows the recommended position Figure 6 5 Paper Cutter Mounting Position Use a cutter with a sharp edge so that paper can be cut easily without excessive force Figure 6 6 shows the shape of the blade of the paper cutter that should be used Figure 6 6 The Blade of the Paper Cutter In the ...

Страница 57: ... few mm between the printer and the outer case to allow for cooling of the thermal head 2 When the FFC contacts bottom of the outer case strongly disconnection and short circuit may occur Provide a gap between the printer main body and the outer case Figure 6 7 Sample Outer Case Structure 1 2 ...

Страница 58: ...arance and external dimensions of the LTPH245D C384 E Figure 7 3 and 7 4 show the appearance and external dimensions of the LTPH245E C384 E Figure 7 5 shows the appearance and dimensions of the platen block used for both LTPH245D C384 E and LTPH245E C384 E CHAPTER 7 ...

Страница 59: ...7 2 Positioning hole Positioning hole Rotation support fulcrum range Unit mm Figure7 1 Appearance and Dimensions LTPH245D C384 E ...

Страница 60: ...7 3 Figure7 2 Printer Main Body Appearance and Dimensions LTPH245D C384 E Unit mm ...

Страница 61: ...7 4 Figure7 3 Appearance and Dimensions LTPH245E C384 E Unit mm Rotation support function range Positioning hole ...

Страница 62: ...7 5 Figure7 4 Printer Main Body Appearance and Dimensions LTPH245E C384 E Unit mm Unit mm ...

Страница 63: ...7 6 Figure7 5 Platen Block Appearance and Dimensions Unit mm ...

Страница 64: ...OADING PAPER PRECAUTIONS 1 Loading paper Turn the release lever in the direction of the arrow shown in Figure 8 1 Figure 8 1 Loading Paper 1 After confirming that the platen block has separated from the printer mechanism lift the platen block up CHAPTER Arrow ...

Страница 65: ...when inserting the paper Moreover make sure there is no foreign matter on the gear Figure 8 2 Loading Paper 2 The out of paper sensor may not operate properly if covered with foreign matter Therefore if you find foreign matter on the sensor remove it and clean the sensor If the paper skews feed the paper so that it returns to normal first then take it out and set it again 2 Unloading paper Open th...

Страница 66: ...inting because thermal head and its periphery are hot during and after printing 2 Do not use sandpaper cutter knives etc when cleaning They will damage the heat elements 8 2 2 PROCEDURE 1 Turn the release lever in the direction of the arrow shown in Figure 8 1 After confirming that the platen block has separated from the printer mechanism lift the platen block up 2 Clean the heat elements and plat...

Страница 67: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Seiko Instruments LTPH245D C384 E ...

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