UPDATE 2009.09.28 SPECIFICATIONS FOR APPROVAL CUSTOMER : NOMENCLATURE : 2 inch Thermal Printer mechanism MODEL : SMP685 SIGNATURE OF APPROVAL http://www.fosvos.com/bixolon/ The Designs or Specifications are subject to change without notice REVISION SHEET The table below indicates which pages in this specification have been revised. Before reading this specification, be sure you have the correct version of each page. Revisions Design section Sheet revision NO. Shee REV. Sheet REV Sheet REV. Document Date WRT CHK APL t A Enactment 081020 J.K.KIM J.S.LEE J.T.KIM I A 17 A B Enactment 090928 J.K.KIM J.S.LEE J.T.KIM II III A A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Number of sheet A A A A A A A A A A A A A A A A 18 19 20 21 22 A A B B B Cover Approval sheet Front Part Specification sheet SMP685 SPECIFICATION Revision sheet SHEET REVISION Table of contents A contents SHEET NO REV Memo Total I REVISION SHEET REV. Sheet Changed contents Title SMP685 Specification (Standard) http://www.fosvos.com/bixolon/ SMP685 SPECIFICATION SHEET REVISION A SHEET NO I TABLE OF CONTENTS 1. DESIGN PRECAUTIONS 2. GENERAL SPECIFICATION 2-1.General Specifications 2-2.Heat Element dimensions -------------------------------------------------- 1 -------------------------------------------------- 2 -------------------------------------------------- 2 -------------------------------------------------- 3 3. THERMAL HEAD -------------------------------------------------- 4 3-1. General Specification -------------------------------------------------- 4 3-2. Thermal Head Block Diagram -------------------------------------------------- 4 3-3. Block and Activated Heat Elements ------------------------------------------------- 5 3-4. Printed position of the data -------------------------------------------------- 5 3-5. Electrical Characteristics -------------------------------------------------- 6 3-6. Time Chart -------------------------------------------------- 7 3-7. Maximum condition at 25℃ -------------------------------------------------- 8 3-8. Head supply voltage -------------------------------------------------- 8 3-9. Peak Current -------------------------------------------------- 8 3-10. Control of a pulse width of Head -------------------------------------------------- 8 3-10-1. Pulse width on Voltage --------------------------------------------------8 3-10-2. Pulse width Calibration on Temperature change ---------------------------- 9 3-10-3. Calculation Sample for the Head Activation pulse width ------------------ 9 3-10-4. Head History Control --------------------------------------------------- 10 3-11. Thermistor Specification -------------------------------------------------- 11 3-12. Detecting Abnormal temperatures of the Thermal Head ------------------------- 12 4. PAPER FEED MOTOR 4-1. Basic Specifications 4-2. Example of Driving Circuit 4-3. Excitation Sequence 4-4. Sample for drive Frequency 4-5. Acceleration Control -------------------------------------------------- 13 -------------------------------------------------- 13 -------------------------------------------------- 13 -------------------------------------------------- 13 -------------------------------------------------- 15 -------------------------------------------------- 15 5. PAPER DETECTOR 5-1. Absolute Maximum Rating 5-2. Photoelectrical Characteristics 5-3. Sample External Circuit -------------------------------------------------- 16 -------------------------------------------------- 16 ------------------------------ ------------------- 17 -------------------------------------------------- 17 6. PIN LAYOUT FOR FPC -------------------------------------------------- 18 7. OPERATION SEQUENCE -------------------------------------------------- 19 8. PLATEN ROLLER ASSEMBLY DIMENSIONS --------------------------------------- 20 SMP685 SPECIFICATION SHEET REVISION A SHEET NO I 9. EXPLODED VIEW -------------------------------------------------------------------------- 21 10. PART LIST ------------------------------------------------------------------------------------ 22 SMP685 SPECIFICATION SHEET REVISION A SHEET NO II 1. DESIGN PRECAUTIONS To maintain the initial level of performance of the printer and to prevent future problems from occurring, observe the following precautions. ◆ If too much energy is applied to the thermal head, it may overheat and become damaged. Always use the printer with the specified amount of energy. ◆ When turning the power on or off, always DISABLE (put in “Low” state) the DST terminals. ◆ To prevent the thermal head from being damaged by static electricity: ◆ Keep the Vp power off when not printing to prevent the thermal head from becoming electrically corroded. ◆ When turning the power on or off, perform the Vp and VDD simultaneously or in the order of 1) and 2) as follows: At power ON: 1) VDD (Logic) → 2) Vp At power OFF: 1) Vp → 2) VDD (Logic) ◆ Always monitor the output of the platen position sensor and paper detector. Incorrect activation of the thermal head may damage and reduce the longevity of the thermal head and the platen. Design the outer case so that the paper detector is not affected by light from outside. Since a reflection type photo interrupter is used in the paper detector, the detector may be affected by light from outside. ◆ Allow for movement of the FPC when designing the outer case because the FPC will shift 2 to 4 mm from the thermal head moving. Also, design the outer case so that it prevents the paper feed out from being caught in the platen. SMP685 SPECIFICATION SHEET REVISION A SHEET NO 1 SMP685 SPECIFICATION SHEET REVISION A SHEET NO 2 2. GENERAL SPECIFICATIONS 2-1. General Specifications Item Specifications Printing method Thermal Dot Line Printing Resolution 8dots/mm x 16 dots/mm (W*H) Dots per line(dots) 384 Printing width 48mm Printing Speed Max 90mm/s at 8.5V Paper feed pitch 0.0625mm Head temperature detection Via thermistor Out of paper detection Via photo interrupter Operation voltage 7.2V DC (for head and motor drive :Max 8.5V DC) 2.7~5.25V DC (for logic) Current consumption (at 7.2V DC) For driving the Head : 2.5A (64Dots) For driving the Motor : 0.6A Paper width 57.5 ± 0.5 mm Paper feeding force 80gf or more Paper holder force 100gf or more Printer Life (at 25° and rated energy) Activation pulse resistance : 100million Abrasion resistance : 50Km Temperature range Operating : 0°C to 50°C Storage : -25°C to 70°C (no condensation) Humidity range Operating : 10 to 90% RH Storage :10 to 90% RH (no condensation) Impact resistance Package : Bixolon standard package Height : 75Cm Directions : 1 corner, 3edges and 6 surfaces Recommended paper HANSOL PAPER 65GSM Dimension (W×D×H) 67.2 * 33 * 17.4 mm Weight 47g SMP685 SPECIFICATION SHEET REVISION A SHEET NO 3 2-2.Heat Element Dimensions The printer contains a thermal head with 384 heat elements Paper Roll Printable Area SMP685 SPECIFICATION SHEET REVISION A SHEET NO 4 3. THERMAL HEAD 3-1. General Specification Item Printing Width Total Number of Dots Dot Density Dot Pitch Average Resistance Specifications 48mm 384 Dots 8 Dots/mm (Dot Size 0.125 X 0.0625) 0.125mm RAVE = 176 Ω ± 4% 3-2. Thermal head Block Diagram SMP685 SPECIFICATION SHEET REVISION A SHEET NO 5 3-3. Block and Activated Heat Elements STB No. 1 2 3 4 5 6 Dot No. 1 ~ 64 65 ~ 128 129 ~ 192 193 ~ 256 257 ~ 320 321 ~ 384 Dots/STB 64 64 64 64 64 64 3-4. Printed Position of the data PAPER FEED DIRECTION PAPER PRINT SURFACE DATA IN DATA 1 2 3 4 382 383 384 PRINTER MECHANISM DATA INPUT SEQUENCE 1 2 3 4 SMP685 SPECIFICATION SHEET REVISION 382 383 384 A SHEET NO 6 3-5. Electrical Characteristics Ta = 25℃±10°C Item Symbol MIN. TYP. MAX. Umix Remark 2.70 - H IIH DI 8.5 5.25 36 VDD 0.2VDD 0.5 V V mA V V Data Input Current (DI) 0 - 5.00 - fDI=fCLK/2 H L VH VDD IDD VIH VIL L IIL DI - - -0.5 ㎂ STB Input Current (High Active) H IIH STB - - 55 ㎂ L IIL STB - - -0.5 ㎂ Clock Input Current (CLK) H IIH CLK - - 1 ㎂ L IIL CLK - - -1 ㎂ Latch Input Current (LAT) H IIH LAT - - 1 ㎂ L IIL LAT - - -1 ㎂ H L VDOH VDOL - 0.5 8 5 90 130 - - - ns - - ns - - ns - 30 36 Print Voltage Logic Voltage Logic Current Input Voltage Do Voltage (DO) Clock Frequency Clock Width Data Setup Time Data Hold Time Data Out Delay Time LAT Width LAT Setup time LAT Hold Time STB Setup Time Driver Out Delay Time 0.8VDD 4.0 fCLK tw CLK 30(50) tsetup DI 30(70) thold DI 30(40) td DO tw LAT 100 tsetup 100 LAT thold 50 tsetup 300 STB tdo - SMP685 SPECIFICATION SHEET REVISION A STB,DI,LAT,CLK ㎂ VIH=5V VIL=OV V V MHz 3.0<= VDD <=5.25 MHz 2.7<= VDD <=3.0 ns SEE 3.6 ns ns 3.0<= VDD <=5.25 ns 2.7<= VDD <=3.0 ns ns SEE 3.6 3.0<= VDD <=5.25 2.7<= VDD <=3.0 SHEET NO 7 3-6. Time Chart z If delay time for Driver Out can not be secured enough there is a possibility that VH would Greatly. Please design the circuit so that VH dose not exceed peak voltage SMP685 SPECIFICATION SHEET REVISION A SHEET NO 8 3-7. Maximum Conditions at 25℃ Item Maximum Conditions Conditions Supply Energy 0.20 mJ/dot S.L.T.=1.25msec Supply Voltage 8.5 V VP<7.2V Substrate Temperature 65℃ Thermistor Temperature Number of Dots to be 64 dots Energized simultaneously Note) Please be noted, the printing intensity variation becomes bigger when the number of dots firing at same time is more than 64. 3-8. Head Supply Voltage The input voltage to TPH is as below. Item Head Drive Voltage Head logic Voltage Voltage Range 7.2V(Max 8.5V) 2.7 to 5.25V VH VDD 3-9. Peak Current The Peak Current at running Head can be calculated as following formula in most cases. Specially pay attention to a Voltage dropping at circuit. N х VP IP = -----------------RAVE RAVE : Average Resistance(176 Ω ± 4%) IP : Peak current (A) N : Number of dots that are driven simultaneously VP : Head drive voltage 3-10. Control of a Pulse width of Head 3-10-1 Pulse width on Voltage To secure the stable print quality, apply a control of Pulse width according to Head running Voltage. Head Pulse width can be gained as below To = Eo х TO : EO : RCOM : RIC : RLEAD : (RCOM х N + RAVE + RIC + RLEAD)2 -----------------------------------------------VH2 х RAVE Pulse per width(ms) Nominal Energy (0.13mJ) Common Resistance (0.05Ω) Driver saturated resistance (9Ω) Lead resistance (10Ω) SMP685 SPECIFICATION SHEET REVISION A SHEET NO 9 3-10-2. Pulse width calibration on temperature change It detects a temperature change by reading a Thermistor Resistance value built in thermal Head. It is recommended to control energy and calibrate the Pulse width into thermal Head based on the installation environmental temperature and a temperature change of thermal Head. When it detects the temperature higher than 60℃, stop the printing process. Pulse per width is calculated the following formula. Ton = T25 х (25-TX) х C { 1+ -------------------} 100 Ton : Pulse width on working temperature(TX) (ms) T25 : Pulse width on working temperature 25℃ TX : Working temperature C : Temperature calibration constant (When Hansol 65 GSM paper used, apply C = 1) Usage temperature and operation volatge Head Pulse Width 600 550 Pulse (us) 500 450 8.5V 400 350 300 250 200 0 5 10 15 20 25 30 35 40 45 50 55 60 Temperature (℃) 3-10-3. Calculation Sample for the Head Activation Pulse Width Thermistor Temperature(℃) 0 5 10 15 20 25 30 35 40 45 50 55 60 Head Pulse Width(usec) 523 499 476 454 430 408 383 361 337 315 293 268 244 SMP685 SPECIFICATION SHEET REVISION A SHEET NO 10 3-10-4. Head History Control 1 Dot line is printed per each 2 steps of motor. A better print quality can be assured by having longer Off-Time so that TPH may cool down enough. In case of red box ○1 , it should fire T-On 1 and T-On 2 both to fire Line 1 because Line 0 was not fired. Line 2 has to fire T-On 1 only and not T-On 2 while Line 1 was fired. In case of blue box ○2 , T-On 1 and T-On 2 both must be fired to fire Line 3 because Line 2 was not fired. Data 1 for T-On 1 and Data 2 for T-On 2 must be transmitted to TPH before T-On 1 and T-On 2 become Strobe On. SMP685 SPECIFICATION SHEET REVISION A SHEET NO 11 3-11. Thermistor Specification ▷ Rating 1) Operating temperature 2) Time Constant : : -20 ~ +80 ℃ Max. 30 sec (in the air) ▷ Electrical Requirements 1) Resistance R25 2) B Value : : 30 kΩ ± 5% (at 25℃) 3950 K ± 2% RX=R25×EXP{B×(1/TX-1/T25 )} (T: Absolute Temperature) 200 180 RESISTANCE ㏀ 160 140 120 100 80 60 40 20 0 -20 -10 0 10 20 30 40 50 60 70 80 TE M P E R A TU R E ℃ Temperature R std (kΩ) Temperature R std (kΩ) -20 -15 -10 -5 0 5 10 15 20 25 316.97 234.22 175.07 132.29 100.99 77.85 60.57 47.53 37.61 30.00 30 35 40 45 50 55 60 65 70 75 24.11 19.51 15.89 13.03 10.75 8.92 7.45 6.25 5.27 4.47 SMP685 SPECIFICATION SHEET REVISION A SHEET NO 12 3-12 Detecting Abnormal Temperatures of the Thermal Head To protect the thermal head and to ensure personal safety, abnormal thermal head temperatures must be detected by both hardware and software as follows: ■ Detecting abnormal temperatures by software Design software that will deactivate the heat elements if the thermal head thermistor (TM) detects a temperature 60°C or higher and reactivate the heat elements when a temperature of 50°C or lower is detected. If the thermal head continues to be activated at a temperature higher than 60°C, the life of the thermal head may be shortened significantly. ■ Detecting abnormal temperatures by hardware If the Control unit 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 to the thermal head even if a detection of abnormal temperature is detected by hardware.) Using a window comparator circuit or similar detector, design hardware that detects the following abnormal conditions: 1) Overheating of the thermal head (approximately 100°C or higher). 2) Faulty thermistor connection (the thermistor may be open or short-circuited). If (1) and (2) are detected, immediately deactivate the heat elements. Reactivate the heat elements after the temperature of the thermal head has returned to normal. SMP685 SPECIFICATION SHEET REVISION A SHEET NO 13 4. PAPER FEED MOTOR 4-1. Basic Specifications Item Type Drive method Excitation Rated voltage Amount of paper feed Resistance Specification PM 20 Steps type stepping motor Bipolar method 2-2 Phase DC4.5V~8.5V (for drive) 0.0625mm per 1 step 10Ω ±5% 4-2. Example of Driving Circuit Motor driver IC : Rohm BA6845FS 4-3. Excitation Sequence ▷ Paper is fed in a forward direction when the motor shaft is rotating in the CCW (Counter Clock Wise) when seen from the motor gear side Signal Name PH1 PH2 PH3 SMP685 SPECIFICATION Step 1 H H Sequence Step 2 Step 3 H L L L H SHEET REVISION A Step4 L H SHEET NO 14 Signal Name Step 1 L H H L OUT1 OUT2 OUT3 OUT4 Sequence Step 2 Step 3 H H L L H L L H Step 4 L H L H PH 1 PH 2 PH 3 Print step 1DOT LINE Pause standby Stop step Print step Start step ※ Precautions for Designing the Motor Control Circuit and Software ▷ To stop the motor, excite for a single step period with a phase that is the same as the final one the printing step ▷ In the pause state, do not excite the step motor to prevent the motor from overheating SMP685 SPECIFICATION SHEET REVISION A SHEET NO 15 4-4. Sample For Drive Frequency The following chart gives the maximum paper feed speed vs the step motor Voltage(at 25℃) Drive Frequency Operation Voltage Feed Speed 5.0V 850 PPS 53 mm/s 7.2V 1200 PPS 75 mm/s 8.5V 1440 PPS 90 mm/s 4-5. Acceleration Control Number of Steps Start 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 SMP685 SPECIFICATION Speed (pps) 200 211 342 447 528 602 669 730 787 840 890 938 984 1027 1069 1110 1148 1187 1224 1259 1290 1328 1360 1392 1422 1432 1440 SHEET REVISION Step Time (㎲) 5000 4728 2922 2234 1894 1660 1494 1369 1270 1190 1123 1066 1016 973 935 901 871 842 817 794 775 753 735 718 703 698 694 A SHEET NO 16 5. PAPER DETECTOR The printer has a built-in paper detector (reflection type photo interrupter) to detect whether paper is present or not. An external circuit should be designed so that it detects output from the paper detector and does not activate the thermal head and motor when there is no paper. Doing not so may cause damage to the thermal head or platen roller or shorten the life of the head significantly. If the motor is drove when it is out-of paper, a load is put on the reduction gear and the life of the gear may be shortened 5-1. Absolute Maximum Rating (TA = 25℃) Parameter Forward Current Input Diode Reserve Voltage Power Dissipation Collector-Emitter Voltage Emitter-Collector Output Photo Voltage Transistor Collector Current Power Dissipation Operation Temperature Storage Temperature SMP685 SPECIFICATION Symbol IF VR PD Rating 50 5 75 Unit mA V mW VCEO 30 V VECO 3 V IC PC Topr Tstg 20 50 -20 to +85 -30 to +100 mA mW ℃ ℃ SHEET REVISION A SHEET NO 17 5-2. Photoelectrical Characteristics (Ta = 25℃) Parameter Input Diode Output Transistor Sym. Condition Min Type Max Unit Forward Voltage VF IF = 10mA - - 1.3 V Reverse Current IR VR = 5V - - 10 ㎂ Dark Current ICEO VCE=10V , IF=0 - - 0.2 ㎂ IC IF=10mA VCE=5V 180 - 440 ㎂ Leakaged Current ILEAK IF=10mA, VCE=5V - - 0.2 ㎂ Fall Time Rise Time tf /tr VCC=5V, IC=10mA RL=100 - 25/30 - ㎲ Collector Output Current Coupied 5-3. Sample External Circuit Paper end sensor Detection PE_SENSOR Output signal level In case of paper exist Low In case of no paper High SMP685 SPECIFICATION SHEET REVISION A SHEET NO 18 6. PIN LAYOUT FOR FPC 1mm 30Pin FPC (Sensor / Motor / Head) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Signal PS_IN VSEN PS_OUT NC NC Vp Vp DI CLK GND GND STB6 STB5 STB4 VDD TH1 TH2 STB3 STB2 STB1 GND GND /LAT DO Vp Vp OUT2 OUT1 OUT3 OUT4 Function Cathode for photo interrupter Photo interrupter power Emitter for photo interrupter Non connector Non connector Print Supply Voltage Print Supply Voltage Data IN Clock Ground Ground Strobe 6 Strobe 5 Strobe 4 Logic Voltage Head Thermistor Head Thermistor Strobe 3 Strobe 2 Strobe 1 Ground Ground Latch(Low Active) Data OUT Print Supply Voltage Print Supply Voltage Stepping Motor signal Stepping Motor signal Stepping Motor signal Stepping Motor signal Printer FPC SMP685 SPECIFICATION SHEET REVISION A SHEET NO 19 7. OPERATION SEQUENCE SMP685 SPECIFICATION SHEET REVISION A SHEET NO 20 8. MECHANISM DIMENSIONS SMP685 SPECIFICATION SHEET REVISION B SHEET NO 21 9. EXPLODED VIEW SMP685 SPECIFICATION SHEET REVISION B SHEET NO 22 10. PART LIST No Parts No Name 1 KP05-00023A Frame lower 2 KM05-00019A Frame upper Specifications SECC T1.0 Q’ty A/S 1 N 1 N 1 N PC-GF10 TPH(AOI)+Bracket AE05-00021A Ass’y Bracket TPH(AOI) +Sensor+Motor TPH(Rohm)+Bracket+ AE05-00021R Ass’y Bracket TPH(Rohm) Sensor+Motor KS05-00009A Spring pressure SUS303 1 N 2 N 5-1 KS05-00011L Spring roller L SUS303 1 N 5-2 KS05-00011R Spring roller R SUS303 1 N 6 KM05-00018A Frame gear POM 1 N 7 KM05-00010A Gear deceleration A POM 1 N 8 KM05-00011A Gear deceleration B POM 1 N 9 KM05-00012A Gear deceleration C 1 N 1 Y 1 N 3 4 11 KC05-00014A Screw- Machine POM SUS303+Silicone+Washer + Bush bearing M1.7*2 12 KC05-00015A Screw- Machine M1.7*3 1 N 13 KC05-00007A Screw-Tapping M1.7*7 1 N 14 6002-001052 Screw-Tapping M1.7*3 4 N PET 1 N 10 15 AR05-00018A Ass’y Platen roller KA05-00011A Label serial SMP685 SPECIFICATION SHEET REVISION B SHEET NO http://www.fosvos.com/bixolon/ 23