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Mp212fp-24-a / Mp216fp-24-a

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DOT MATRIX PRINTERMECHANISM /WP212FP=24=A tWP216FP=24-A SPECIFICATION AND OPERATION MANUAL ~&@l~ STARMICRONICSCO LTD NOTICE ● All rights reserved. Reproduction of any part of this manual in any form whatsoever, ● ● ● without STAR’s express permission is forbidden. The contents of this manual are subject to change without notice. All efforts have been made to ensure the accuracy of the contents of this manual at the time of going to press. However, should any errors be detected, STAR would greatly appreciate being informed of them. The above notwithstanding, STAR can assume no responsibility for any errors in this manual. @copyright 1994 Star Micronics Co.,LTD. CONTENTS 1. GENERAL DESCRIPTION .-..-.......-.....-.-.-.= ..........-...=---....--. .1 2.1 ...................................................................................................................... 2 Configuration ............................................................................................................... 2 2.2 Principle of Operation ................................................................................................. 2 2. CONSTRUCTION 3. GENERAL SPECIFICATIONS 3.1 3.2 .......-.=--~-~fl~~=-~-~~~~ ---.--.-..=........-.-5 Printing Specifications ................................................................................................. 5 Paper Specifications ..................................................................................................... 6 3.4 Ink Ribbon Specifications ............................................................................................ 7 Connector Specifications .............................................................................................. 9 3.5 Print Head Specifications ~=u-..--uu.--.~~-~~.~.~ 3.3 ~~~~=~~..~~-~~~.-~..--. 3.6 11 Print Timing Specifications ....................................................................................... 15 3.7 Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............-=......= 3.8 16 Motor Specifications .................................................................................................. 18 3.9 Solenoid Specifications m-titi.ti~-u~mti----------- 3.10 Timing Signal Detector Specifications fi.....m..m.....-....m..~......-.....-...-.......-....=..... 3.11 Home Position Detector Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 3.12 Paper-out Detector Specifications .. .... ...... ..... ... ....... ... . .... ......n....-.....-.....~ ..... 22 3.13 Dimension and Weight . . . . . . . . . . . . . . . . . . . . . . . ----------------------- 4. RELIABILITY SPECIFICATIONS ~~=--.~~~~~~~~~~~~~=~=- -. 19 21 ..23 . . . . . . . . . . . . . . . . . . . . . . . . . . .........................-....-...26 5. SETTING THE RIBBON CARTRIDGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6. SETTING THE PAPER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..--28 6.1 Setting the Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .........28 6.2 Removing the Paper .................................................................................................. 28 7. INSTALLATION ......................................................................................................................29 8. OPERATIONAL NOTES . . . . . . . . . . . . . . . . . . . . . . . . . ..-.....-..-..-=-.=. ----- ..33 8.1 Power ON/OFF Note . . . . . . . . . . . . . . . . . . . . . . . ..--..........--.=----- ...33 8.2 Carriage Motor Protection Method (Against Mechanical Errors) . . . . . . . . . . . . . 34 8.3 Other Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....-...-...=--. . . . . . . 34 9. POWER SUPPLY CAPACITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..........35 9.1 24V Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 9.2 5VLine.~~---tif~~~titi~i~ ----------------------- ---------------------- 35 1. GENERAL DESCRIPTION MP21O series is the mechanism of serial impact dot matrix printer having the applications for the electronic equipment, such as in POS, or data recorder, and so on. Model Name Notation EImlml T 24 “ 1 Voltage 24: 24VDC Paper-outdetector P: Paper-outdetectoroperates ~ Paper feed methodI F: Frictionfeed method ~Mechanismtwe[ ., I 1 2: Monochromatic16CPI 42 columnsper line 6: 2 colors,16 CPI, 42 columnsper line ~ I Printertwe I . I 1: TYPE 1 MP200 Series Printermechanism -1- 2. CONSTRUCTION 2.1 Configuration This printer mechanism is composed of the following components. Drive unit, gears, and carriage unit Timing detector Detectors Home position detector Paper out detector % Ribbon position detector (MP216) Printer mechanism : Paper feed mechanism Ink ribbon wind mechanism Print head unit Frame unit 2.2 Principle of Operation 2.2.1 Drive This printer mechanism moves the print head, paper feed, ribbon shift (MP216) and feeds ribbon with the motor. 2.2.2 Print head movement The rotation of the motor is transmitted to drive shaft through the reduction gears. The carriage makes lateral reciprocal movements along a groove that is carved on this drive shaft, consequently moving the print head. 2.2.3 Print timing Printing is done when the timing signal is generated synchronized with the rotation of the motor, based on the home position signal. 2.2.4 Ribbon feed The ink ribbon is housed inside a ribbon cartridge in endless fashion. A ribbon feed roller is turned by the rotation of the motor whereby the ink ribbon is wound up. 2.2.5 Paper feed Paper feeding is done by the rotation of the motor turns on the line feed solenoid to activate the spring clutch and to turn the gear. 2.2.6 Ribbon shift In case of MP216, make the motor rotate to make electricity flow to the ribbon solenoid so that the spring clutch operates and so that the cam gear rotates half a turn, and then change to a ribbon of another color. -2- n hirning detector ; v Can‘i Motor Connector Prinlt ‘\ \ Ribbon cartridge Drive shaft I_ Home position detector feed solenoid Paper-out detector Fig. 2-1-1 External view of MP212 -3- Timing detector Ribbon shift solenoid ‘$ ! Ca I :,\ -- Motor Connector ./ / Print \ R-1111 “ r- . Ribbon cartridge Ribbon position detector ‘Drive shaft ‘Home position detector Platen Paper-out feed solenoid Fig. 2-1-2 External view of MP216 -4- 3. GENERAL SPECIFICATIONS 3.1 Printing Specifications Specifications Item Impact dot matrix printing 7 X 7 (half dot) or 9 X 7 (half dot) Bidirectional Approx. 2.5 lines/see. (besides when shifting ribbons) Approx. 9 lines/see. (continuous feeding) cjO.33mm in diameter 1/6 inch fixed Printing method Font configuration Print direction Print speed Paper feed speed Head wire Line space 1. In the bidirectional printing, the horizontal drift is liable to occur more than in the unidirectional printing. Dot, Column space Specifications 1 Paper width 3.0 inch (76mm) 2 Font configuration (H XV) 7x7 (halo 9x7 (halo 3 CPI 16 13.4 4 Column number 42 35 5 Dot space H mm (a) V mm (b) 0.316 0.423 0.316 0.423 6 Character size W mm (c) H mm (d) 1.28 2.87 1.59 2,87 7 Column space mm (e) 1.58 1.90 210 210 66.0 66.0 8 Total no. of dots 9 Print area mm CPI: Character Per Inch Fig. 3-1 Character size (7 X 7 font) -5- 3.2 Paper Specifications Specifications Item Paper type Paper width Diameter Thickness Inside diameter Others Print area Ordinary bond and carbonless copy paper (Roll paper) 76+0.5mm (3.0 inch) Max. 85mm (3.35 inch) Single: 0.07 mm to 0.10 mm Copies: Original + 1 copy Total thickness within O.14mm, with each sheet 0.05 to 0.08mm thick Original + 2 copies Total thickness within 0.2mm, with each sheet 0.05 to 0.08mm thick 12* lmm No glue between the paper and the inside diameter Shown in Fig. 3-2 Rightmargin Printarea Left margin k Paper width 4 Fig. 3-2 Paper spec. & print area -6- 3.3 Ink Ribbon Specifications MP212 Item Type Color Ribbon material Ribbon size Model No. Ribbon life Specificaitons Special cartridge Purple (standard) or black (option) Nylon 66 #40 denier Width: 13mm Purple (standard): Part No.3O98OO1O Part Name: INK RIBBON CARTRIDGE Black (option): Part No.30980110 Part Name: INK RIBBON CARTRIDGE Purple: Approx. 3,000,000 characters Black: Approx. 1,200,000 characters Fig, 3-3-1 Ink ribbon cartridge –7– RC200P RC200B MP216 Specificaitons Item Type Color Ribbon material Ribbon size Model No. Ribbon life Special cartridge Black and red Nylon 66 #40 denier Width: 13mm Black and red: Part No.3O98O21O Part Name: INK RIBBON CARTRIDGE Black: Approx. 600,000 characters Red: Approx. 300,000 characters Fig. 3-3-2 Ink ribbon cartridge -8- RC200BR 3.4 Connector Specifications Mating Cable SUMITOMO ELECTRIC INDUSTRIES, Ltd. SUMI CARD SMCD-23X60-BDX1O-P1.25-S6-M. UL2896 SUMITOMO ELECTRIC U.S.A. INC., (New York Office) 551 Madison Avenue,New York, NY 10022,U.S.A. TEL : 413-863-4757 FAX : 413-863-2305 Parts No. BURNDY CORPORATION HLEM23R-1 Manufacturer BURNDY CORPORATION (USA) (U.S. ELECTRONICS GROUP) 51 Richards Avenue Mail: PO. Box 5200Norwalk. CT 06856,U.S.A. TEL : 203-838-4444 FAX : 203-852-6227,6228 (EC) FRAMATOME CONNECTORS DEUTSCHLAND GMBH Heinrich-Hertz-Strasse1 D40699Erkrath 1, Germany TEL : 211-9254-150 FAX : 211-9254-142 SUMITOMO ELECTRIC EUROPE S,A. (London Office) 30 Dorset Square, London NW1 6QJ, England, U.K. TEL : 071-723-4003 FAX : 071-724-2102 MP212 II I HD #4 2 I HD CMN(#4) 3 ] Thermistor I Fig. 3-4-1 Connector connections -9- r ,IJ “wlr+(#4) Thermistor & Thermistor 6 HD #5 7 ! HD #2 8 LHD #3 9 I HD #7 10 HD #1 11 HD CMN 12 HD CMN 13 S-GND 14 RS-siq 15 CR MOTOR (-) 16 PE-sig 17 RS-SOL 18 HP-sig 19 LF-SOL 20 T2-sig 21 T1-sig 22 +5V 23 CMN(VH) , L t man ma-o m m mum , t I ,, 4, I ~1 T T f LA 3 --@l m m fw ,, f\ 4I (\ /\ f\ Fig. 3-4-2 Connector connections -10- 1} ~À )1 3.5 Print Head Specifications 3.5.1. BasicSpecifications Specifications Item Supply voltage Response frequency Pulse width Coil resistance Peak current Timing 24VDC& 1.2V 900Hz or less See Fig. 3-6 20.6+ IQ (includes cable resistance) 0.9A/solenoid (for 24VDC, 360LM) Energizing is begun at the falling of the output signal of timing signal 1 in Fig. 3-18. Energizing cycle shall be 2 pulses or more of timing signal 1. ControlSignal Min. 1111ps Peak current d 360-td — Max. 0.9A 1.OA 4.8 mj\dot 5.3 mj/dot Power Consumption PrintPulse Condition prin~so,enold Typ. 24V 360Ps 25.2V 353ps * CurrentWaveform 1-l 360Fs Transistor’s turn off delay time (td): 2PS Fig. 3-5 Current waveform The relation of the supply voltage and the pulse width is shown in Figure 3-6. 380 -‘(380) 370 -(370) 360 ---- (353) 350 ,(343) 340 ~ 0 i-% O (22.8)23.0 24.0 25.0 (25.2) SupplyVoltage(V) Fig. 3-6 The relation of the supply voltage and the pulse width Set the pulse width inside of the range of the hachures as shown in Figure 3-6. -11- A zener diode is employed for suppressing the spike voltage that appears when the transistor is turned OFF. An example of drive circuit is shown in Figure 3-7. In this circuit, a transistor with zener diode (zener voltage 60~”W) is used between the base and collector. +5V m t ControlSignal CN1 ~ VH(24V) TR1 u CMN ~ Print Solenoid ii A r .- TR1 \ \ \ —-. PrintPulse u 2SD2041 (ROHM) \ b ‘ -—-- Q ; I :: / / / : 1 GND F R2 330Q VH 23V+ VcE(Sat.) of TR1 =24V ~ Fig. 3-7 Print solenoid drive circuit (example) 3.5.2 Pre-fire This operation is the warming up of printer, in which the operation of a needle wire is improved by applying to it micro vibrations. Pre-fire is executed under the following conditions. Since the pulse width is short, no print operation takes place. Operation timing When power is turned ON Supply voltage 24VDCf 1.2V Frequency 900Hz Pulse width 120 *5/.&s Count 32 -12- 3.5.3 Head temperaturesensor circuit When the printer prints continuously for a prolonged time, the print head faces the risk of getting overheated. There, this head temperature sensor circuit finds out the internal temperature of print head by sensing the resistance value of a thermistor located inside the head. Make the printer execute the following operations, according to the internal temperature of its print head. a. T< 105”C . Execute regular print operation (bidirectional printing). b. 105°CsT ● Stop print operation. As soon as the internal temperature of print head lowers down to below 105”C, resume the bidirectional printing of above item ‘a’. Below is given a conversion table of internal temperature of print head and resistance values of thermistor. The resistance value of thermistor is sensed every alternate line. AN voltage is controlled to set 3.868V at 105”C. Resistance value of thermistor (Kfl) Temp. T (“c) Min. Typ. Max. 105 2.622 2.926 3.232 One example of head temperature sensor circuit is given in Fig. 3-8. This circuit senses the temperature by employing an A/D converter built inside CPU. Vcc 3[ +5V + * VREF t TH Thermistor TM541OH(HITACHI) R1 10KO * l~o cl O.OIWFCeramic capacitor (noise elimination) +5V TH 5! AN cl CPU RI 777 A Fig. 3-8 Head temperature sensor circuit (example) -13- 3.5.4 Print Duty When you dont’t use the head temperature sensor circuit, you can print under the maximum print ratio N as shown in Figure 3-9. No matter what pattern you may use, set the maximum print ratio under N. Even if you set the maximum print ratio over N, the printer prints, but it gives to printer the possible damage. However, when the head temperature sensor circuit is activated and the print ratio is over this maximum ratio, the printer stops printing. 950 L 940 h;:””’ 25 (“C) 8 750 -: 700 -; 600 -: 550 -[ 500 -~ 22.8 25.2 24.0 Supplyvoltage(V) Fig. 3-9 Print duty (without the head temperature sensor circuit) When you print by using the wires evenly, the print duty of the continuous print is curved as shown in Figure 3-9. The possible dot number D of a character is calculated by the numerical formula. ~ = N (Print Ratio) X T (Print time per line includes the time of the paper feed [see]) [dot/chara] L (number of character per line) When you use the specific wires many times, make sure the maximum print ratio is not over the print duty shown in Figure 3-10. However, when the head temperature sensor circuit is activated, and the print using 5 or more specific wires is over this maximum ratio, the printer stops printing. Atmospheric Temperature 25(”C) I 900 / 50 (“c) Numberofthespecificwires Fig. 3-10 Print duty (using the specific wires many times) The print duty executed under the supply voltage 24.OV is shown in Figure 3-10. -14- 3.6 Print Timing Specifications This printer uses timing signal 1 as the counting pulse of the solenoid and motor control. The numbering Tn of the timing signal 1 is obtained as follows. Detect the first rise of timing signal 2 after the home position signal has risen, and the first drop of timing signal 1 so that it becomes T-1. Then the next timing signals drop so that they become T2, T3, and T4. Print timing is shown in the figure 3-11. Please pay attention the following regarding these print timings. The make-time cycle of the same pin should be over 2 pulses at timing signal 1. @ 7 X 7 dot matrix (half dot) P’n““‘Ocammoooooo -----------------’ 20.000000000 3oooooo~o 4ooo.(-)~@~~@() 5000 70@@goo@@goo ----------------Print direction + ~ii~~l! 1 ,11 SeT96‘j T,63T96? ‘~ T95‘j T96 ‘j T95 ‘j T95 ‘j T95 T959T957T955T953 ‘j 195 ‘j 194 ‘j T94 (left -- right) t 7944 T951 T949T947T945 tjtjtjt$$j 155 T55 T55 T,, 1,4 ,553,551 T54, T,47T,4, T,. T543 @ 9 X 7 dot matrix (half dot) Print direction * (left + right) Pin NO. column 35 .--------.---- I 2 3 4 5 6 -------------- 7 Print ‘iming t$jt$jt igflai 1 ,9, ,,, ,9, 7,, ,% 7,, ,,,jt$jtjtjtjt$jt s TM T963Ts, , T,5, T,57T955T953 T,, T’34 , T,4, 194 T94 T,47T945T943 T94 T940 direction (-ht) T941 Fig. 3-11 Printing timing -15- t$jt$jtjtj ,5, T,, ,553,55, T,, ,5, r54, ,54 T,, T,47T545T543 - — ‘-IQ — —, — 1 (9 cc.. e ~ C-J + P ~ 3 0 OJ 0 — C-J c1 *. + .- I u+ “c=! ‘“> r-’ — 1 Lg I a Y A -16- Action (2) MOTOR . r :, OFF I T1T2T3... I T30 T156 T408 T282 T1-sig LF-SOL TURN; STOP Paper feed clutchgear: halfturn, 18 x 6=108 puls I 4 (3) operation (for MP216 only) I 1 MOTOR I T336 T1-sig RS-SOL TURN; RS-GEAR ~ STOP Ribbonshiftcam gear: half turn, 18x6x32/12=288 Puls T534 3.8 Motor Specifications Specifications Item Type DC motor Supply voltage 24VDC A 1.2V Start current Max. 0.5A Average current Approx. 80mA * Approx. 90mA Ave. 80mA Max. 0.5A h I Ii J * Ave. 90mA ( Fig. 3-12 Current waveform of the motor +5V VH (24V) D1 Control Signal 4 Drive Signal. I / / / I I ~ R2 ‘\ , - / : ,’ ,, Q - Fig. 3-13 Motor drive circuit (example) TR1 D1 R1 2SD201O (ROHM) DSMID1 I IKQ R2 330C! VH 23V + TR1 VCE (sat.) = 24V -18- 3.9 Solenoid Specifications Line feed solenoid (LF-SOL) Specifications Item 24VDC& 1.2V T1-sig 18 pulse (Approx. 12ms) Approx. 57.00 Approx. 400mA Supply voltage Pulse width Coil resistance Average current I Approx.400mA / t Fig. 3-14 Current waveform of LF-SOL 19i RI TRJ / _ :‘ . / \ / \ ) / Drive Signal \ / / \ / \ I / Q GND Fig. 3-15 LF-SOL drive circuit (example) I TB1 I 2SD201O (ROHM) D1 DSMID1 R1 IKfl R2 3300 VH 23V + TR1 VCE (sat.) = 24V -19- ( Ribbon shift solenoid (RS-SOL) Item Specifications Supply voltage Pulse width Coil resistance Average current 24VDC* 1.2V T1-sig 18 pulse (Approx. 12ms) Approx. 57.OQ Approx. 400mA I G I t- Fig. 3-16 Current waveform of RS-SOL VH(24V) +5V * D1 Solenoid ControlSignal 17: ~ Drive Signal u TRj -. /. w .1 RI -’l Fig. 3-17 RS-SOL drive circuit (example) I TB1 I 2SD201O (ROHM) I D1 I DSMID1 R1 IKfl R2 330Q VH 23V + TR1 VCE (sat.) = 24V I -20- 3.10 Timing Signal Detector Specifications The timing signal detector is composed of a detection slit mounted on the motor shaft, a photo interruptor, and waveform shaping circuit. Timing signal 1 is generated 18 pulse and timing signal 2 is generated 1 pulse every time the motor rotates by 1 turn. Ps Photo interruptor ON1OO4R (MATSUSHITA) TR1 2SC1740 R1 4.7Kf2 R2 56Kfl R3 1500 cl 2200PF +5V +5V -iI A RI CPU, ITL, etc. 4 I R3 21 I ● ~ — cl $ I Printer - Mechanismside User’sside r Fig. 3-18 Circuit of timing signal 1 (example) Ps TR1 Photo interruptor ON1OO4R (MATSUSHITA) 2SC1740 T I R1 CPU, ITL, etc. 4.7KQ R2 56Kfl R3 150f2 cl 2200PF I 20 I ~ — cl RI +5V +5V R3 4I I & I Fig. 3-19 Circuit of timing signal 2 (example) -21- 1 3.11 Home Position Detector (HP-sig) Specifications The home position detector is composed of the mechanical switch. While the carriage is located at the left end, the switch remains ON. RI 10KQ +5V I AT I RI CPU, ~L, etc. I 161 -.. I R2 I I —cl “2 z I p~i”te~ User’sside I Mechanismside Fig. 3-20 Home position detector circuit (example) In order to improve the reliability, we recommend that the HP-sig is detected as described below. (1) When the T1-sig is unstable when turning on the power, etc. Detect the L level after having detected the H level of the HP-sig, and then, after having carried out 92 pulse counts for the T1-sig, detect the H level. (2) When the T1-sig is decided during continuous operation of the motor Detect the L level of the HP-sig, and then, after having counted 1066 pulses of the T1-sig, detect the H level. 3.12 Paper-out Detector (PE-sig) Specifications The Paper-out Detector is composed of the mechanical switch. While the paper is set in the paper tray, the switch remains ON. R1 10KQ +5V I $: T RI 18 I -.. I R2 -rc’ Z&l I I 0‘2 I printer User’sside I Mechanismside Fig. 3-21 Paper-out detector circuit (example) -22- 3.13 Ribbon position detector (RS-sig) Specifications (MP216 only) The ribbon position detector is made up by a mechanical switch. When the ribbon is at the position for printing of black characters, the switch is ON, +5V RI 10KQ R2 15KC? c1 4T I RI CPU, ITL, etc. 0.022PF I 14 I I R2 — cl I & I I p~l”te~ I 03 User’sside I Mechanismside — Fig. 3-22 Example of ribbon position detection circuit In order to improve the reliability, we recommend that the RS-sig is detected while the motor is off. 3.14 Dimension and Weight See Fig on the next page for external dimension of the printer mechanism. Weight of printer mechanism: MP212 approx. 460g (excludes the ribbon cartridge) MP216 approx. 480g (excludes the ribbon cartridge) Weight of ink ribbon cartridge: approx. 30g -23- L 3 % (96) 90*(3.5 4-R3 u - 3 4 Printer foot holes 1 3 90+().5 Printing surface, paper exit 22 w o v Unit: Fig. 3-23-1 MP212 External Dimension -24- mm % (96) u 3 90+0.5 1- 4-R3 3 * 3 4 Printer foot holes 90*0.5 (Printing surface, paper exit) 22 rl N o * Fig. 3-23-2 MP216 External Dimension -25- 4. RELIABILITY SPECIFICATIONS Specification Remarks Printer reliability 2.5 million lines MCBF Except print head life Item .ife Print head life 75 million characters 14 dots per charcter Recommended ribbon: MP212: purple color ink ribbon cartridge (part No. 30980010) MP216: black & red color ink ribbon cartridge (part No. 30980210) O“c to 50”C Temperature )perating nvironment Relative humidity 10 to 8070 RH (at 40”C) After being left under this environment for two hours, the printer mechanism must satisfy general specification. –20”C to +70”C korage Temperature environment Relative humidity 5 to 95~0 RH (at 40”C) After being left under this environment for 96 hours, and under normal temperature and humidity for two hours, the printer mechanism must satisfy general specification. Vibration Amplitude Vibration test Sweep Gravity Direction Test time Packing Shock test Height Order Packing nsulation resistance : 10–55– 10Hz : 1.54 mm (at regular range) : one minutes : 0.3- 9.3G The printer must satisfy general : X, Y and Z direction s specification after testing. : Two hours in each direction (Six hours in three directions) : With the least packing unit : 85 cm : 1 corner, 3 edges, and The printer must satisfy general 6 surfaces specification after testing. : With the least packin g unit When you put the printer mechanism to the quality control test, use the printer under the environment as shown at the left. IMfl (1OOVDC) -26- 5. SETTING THE RIBBON CARTRIDGE 1. Turn the ribbon feed knob of ribbon cartridge in the direction of the arrow to remove slack in the ribbon. 2. Place the ribbon cartridge as shown in Fig. 5-1, and press it to set in the Unit. When the ribbon 3. cartridge is hard to set to the proper position, turn the ribbon feed knob in the direction of the arrow. Insert the ink ribbon between the print head and the platen. Turn the ribbon feed knob of ribbon cartridge in the direction of the arrow to remove slack in the ribbon. Ribbonfeed knob -Print head Ink ribbon Lock Fig. 5-1 Setting the ribbon cartridge -27- 6. SETTING THE PAPER 6.1 Setting the Paper 1. Tear off straight the leading edge of the paper (roll paper). 2. Make sure you set the paper in the direction of the following figure, and insert the paper to the paper guide. GOOD I NG Fig. 6-1 Positions of adjust lever Turn the feed motor, and turn on the solenoid to feed the paper. When the paper comes out of the paper outlet, turn the feed motor off, and stop the paper feed. Caution: The roll paper has a mark that gives you a Paper-out notice. When you notice this mark, set the new roll paper. 3. 4. 6.2 Removing the Paper 1. Tear the paper behind the paper guide. 2. Turn the feed motor to remove the paper. Caution: If snatched out manually, the paper may become askew, causing it to be jammed inside the printer. -28- 7. INSTALLATION 1. At the time of mounting the printer mechanism into its housing cabinet, put cushion material, such as, rubber foot, on the printer mechanism producing noise. We recommend legs. If installed directly, reverberations occur that you use the following rubber foot. 010 Parts name : DAMPER RUBBER SP2 Parts No. : 30290010 Fig. 7-1 Recommended Rubber foot Spacer L.1 04 2/5 Parts name Parts No. : SCREW 3.0 : 30250010 Unit: mm Fig. 7-2 Recommended Set screw 2. Set the play between the roll paper holder and paper thrust direction to within 2mm, and ensure that the roll paper holder doesn’t hold back the edge of paper. 3. Set the paper inserting angle to within 40°. 4. Attach R of size R2 or larger at places which contact the corners of the paper insertion case. 5. Set the paper feed load, at the printer’s paper inlet, to 30g or less. 6. Take into account prevention of paper rewinding, when designing the case. 7. Allow needed space surrounding the printer. Fig. 7-3 shows an example of installation space. In the case of MP216, please be especially careful as the ribbon moves up and down. 8. Fig. 7-4 shows an example of installation. 9. Since this printer mechanism employs galvanized steel panels, the end surface doesn’t come plated. -29- 9 98 k -------I I I I I I I 11 I I I I I I I I I I I I I -, ~_. ~ .---------- ~ —--- ——---—— —-- .-— .! / I I I I I 1 I I I I — I I i. I I L -- --—— ---------- -—— ---------------- 11 I I I I I I i I i I I I Fig. 7-3-1 MP2121nstallation space (example) -30- 9 98 < ---- --------------------------------- .. .. ~ .. — ----------------------------------- 1- -------------------------------—-- 1 I I I I I I I I I I I > i i 1 I i----------------------- ------------ 7 la w Fig. 7-3-2 MP216 Installation space (example) -31- Details of printer foot ‘Screw Printer foot 30 Chassis E o nter nting u-l o L-J 22 Paper Paoer . exit holder foot \ a f- 6 . !r foot ===4=-= Unit: Fig. 7-4 Printer installation (example) -32- mm of 8. OPERATIONAL NOTES 8.1 Power ON\OFF Note If the 5V power supply line for logic has not fully risen or fallen immediately after the power supply is turned ON or OFF, the CPU or TTL in the logic circuit may misoperate. At such times, power is supplied to the motor or solenoid, causing, in the worst case, burnt out solenoid or running of motor (misoperation), unless the 24V power supply line for motor drive is completely OFF. To avoid such misoperation, take into account the following points. 8.1.1 Power supply ON/OFF timing rule Supply 24V line after the 5V line has fully risen. Similarly, cut off the 5V line after the 24V line has fully fallen. +5V line (For logiccircuits) +24V line (For printercircuits) — Fig. 8-1 Power supply ON/OFF timing rule 8.1.2 Method of controlling the drive circuit +5V line (For logiccircuits) +24V line (For printercircuits) Reset Reset // / / / / / , ‘ Reset cancel Drive circuit / Fig. 8-2 Drive circuit controlling method If the power supply ON/OFF timing rule cannot be followed, reset the print solenoid or motor drive circuit with control signal. An example of this type of circuit is shown in Fig. 8-3. Turn OFF transistor TR1, while the 5V line has not completely risen, in order to inhibit power to the print solenoid. Then as soon as the 5V line has completely risen, turn ON TR1, permitting power to the print solenoid. -33- +5V line A +24V line (+25V) RI ) R2 ControlSignal+ * Icl Drive signal+ R1 R2 R3 ICI : 10KQ, l14W ‘ , : 2,2K!2, I14W --: IKf?, I14W : SN74LS05 (Open collectorcircuit) ‘ GND Fig. 8-3 Circuit to control drive circuit (example) 8.2 Carriage Motor Protection Method (Against Mechanical Errors) If the carriage motor gets locked as a result of trapping foreign matter, etc. in the printer mechanism, a risk of damaging the motor due to flow of excess current to it is generated. Therefore, it becomes necessary to monitor the excess load status of printer mechanism, by detecting the cycle of timing signal 1 with timer, etc. Once the cycle of timing signal 1 becomes as given below, stop power being supplied to the motor. a. b. Print interval: 2ms or more/450~ms or less Outside print interval: 200ms or more 8.3 Other Notes 1. 2. 3. 4. 5. 6. Do not attempt to print when the paper or ribbon cartridge are not loaded in the printer mechanism as this could damage the print head. Do not store or use the printer mechanism at places of substantial dust, iron content, etc., or in oily atmosphere. Wipe off dust, dirt, etc. from the printer mechanism, using a soft brush. Or, wipe with a piece of cloth dampened in alcohol. Never inflict strong force on the printer mechanism. Otherwise, the frame or other parts may be distorted, rendering normal functioning impossible. Avoid sudden changes in the ambient conditions like, temperature, humidity, etc. even while they are held in prescribed limits. If sudden change occurs, allow about 30 minutes for acclimatizing, before using the printer mechanism. Never use the printer mechanism with condensation deposited onto it. -34- 9. POWER SUPPLY CAPACITY 9.1 24V Line Arrange for the following power supply, taking into account the voltage drop (about IV) of VCE (sat) of the power transistor for driving print solenoid. Power supply voltage 23V+ IV=24V*5% Similarly, arrange for 1.5A or larger power supply capacity; and connect an electrolytic condenser of 4700PF to 6800wF/35V to the power source. 9.2 5V Line Arrange for 5V power supply for the detector (photo interruptor). Voltage 5V*5% Current consumption Approx. 60mA -35- HEAD OFFICE STARMICRON*S OVERSEASSUBSIDIARY COMPANIES CO.LTD 20-10 Nakayoshida, Shlzuoka, 422,JAPAN Tel: (054)263-1115 Telefax:(054)263-8714 Telex:3962611STARJ STAR MICRONICS AMERICA, INC. STAR MICRONICS OEUTSCHLANOGMBH STAR MICRONICS U.K. LTD. 70-D Ethel RoadWest, Westerbachstra13e 59, Piscataway, NJ08854,U.S.A Tel: (908)572-9512 Telefax:(908)572-5095 D-6000 Frankfurt/Main 94, Germany Telefon: (069) 789990 Telefax: (069) 781006 Telex: 4 175825 star d StarHouse, Peregrine Business Park, Gomm Road, High Wycombe Bucks, HP13 7DL U.K. Tel: 0494-471111 Fax: 0494473333 Telex: 83393 STAR UK STAR MICRONICS ASIA LTD 18/F., Tower11,Enterprise Square,9 SheungYuetRoad,KowloonBay, HongKong Tel: 7962727 Fax: 7999344 Distributed by Printed in Japan, 30821325