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THERMAL PRINTER
TSP200 Series
TECHNICAL MANUAL
[SECOND EDITION]
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NOTICE • All rights reserved. Reproduction of any part of this manual in any form whatsoever, without STAR’s express permission, is strictly 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 printing. However, should any errors be found, STAR would greatly appreciate being informed of them. • The above notwithstanding, STAR can assume no responsibility for any errors in
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INTRODUCTION 1 This manual describes the thermal printer TSP200 series. It is designed for use as a reference for periodic inspections and maintenance procedures to be executed by service personnel. It is not intended for the general user. Users of this manual should have a basic knowledge and understanding of the English language. 2 • This manual is comprised of the following chapters. Chapter 1 Specifications and Operation Chapter 2 Theory of Operation 3 Chapter 3 Parts Replacement and Related
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CHAPTER 1 SPECIFICATIONS AND OPERATION 1 1. General Specifications.......................................................................................... 3 2. External Appearance............................................................................................. 4 3. DIP-Switch Settings .............................................................................................. 5 4. Using the control panel to adjust the sensors, select the head rank, and set the memory switches.
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SPECIFICATIONS AND OPERATION – 2 –
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158mm 158mm SPECIFICATIONS AND OPERATION 1. General Specifications Printing method Line thermal direct Resolution 8 dots/mm (H) × 8 dots/mm (V) Printable width 72 mm Printing speeds 50 mm/sec (max.) Printable characters ANK, International Bar codes JAN, EAN, UPC, Code 39, ITF, Code 128, Code 93, NW-7 Character matrix 12 × 24 dots Interfaces RS-232C, Parallel Dimensions TSP212-120/230 : 158(W) × 234(D) × 193(H) mm TSP242-120/230 : 158(W) × 234(D) × 193(H) mm TSP212-24 : 158(W) × 239(D) × 193(H) m
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SPECIFICATIONS AND OPERATION 2. External Appearance Printer cover Protects the printer from dust and reduces noise. Do not open the cover while printing. Control panel Features two control switches and two indicators to indicate printer status. AC power cord Plugs into an outlet of the specified voltage. Shape of AC power plug will vary according to [ TSP200-120/230 ] destinations. Interface connector Peripheral unit drive circuit connector Connects the printer Connects to peripheral units such
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SPECIFICATIONS AND OPERATION 3. DIP-Switch Settings Be sure to turn the power to both the printer and host computer off before changing the setting of the DIP switches. Power off DIP switch 14 81 ON OFF DIP switch 1 DIP switch 2 Fig.1-3 DIP switch array DIP switch #1 The factory settings of DIP switch 1 are all on. Switch Contents ON OFF 1-1 Baud Rate 1-2 1-3 Data Length 8 bit 7 bit 1-4 Parity Check Disabled Enabled 1-5 Parity Selection Odd Even 1-6 Handshake DTR/DSR XON/XOFF 1-7 Operating Mode
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SPECIFICATIONS AND OPERATION 4. Using the control panel to adjust the sensors, select the head rank, and set the memory switches. Hold down the FEED and ONLINE switches while setting power on, then continue to hold the switches down for the time necessary to enter the required mode, as indicated below. Start Buzzer beeps 1 time. Release within 2 seconds. Press both switches. Continue to Enters "Adjust Paper-Out Sensor" mode. hold down. Buzzer beeps twice. Release within 2 seconds. Both switche
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SPECIFICATIONS AND OPERATION (1) “Adjust Paper-Out Sensor” mode. Adjustment is not necessary if the ONLINE lamp is ON when you enter this mode. If the lamp is OFF, the turn VR1 clockwise until it the lamp comes ON. To exit this mode, press ONLINE. To move back to the start of the sequence, press both ONLINE and FEED at the same time. Please be sure that paper is inserted before entering this mode. (2) “Adjust Paper-Near-End Sensor” mode When you enter this mode, the POWER lamp will be lit if the
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SPECIFICATIONS AND OPERATION 5. Running a test print To generate a test print, hold down the FEED switch while setting the power on. 6. HEX dump mode To enter HEX dump mode, hold down the ONLINE switch while setting the power on, and then release the switch after the buzzer beeps once. When this mode is active, all data sent from the host will be printed in HEX form. – 8 –
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CHAPTER 2 PRINCIPLES OF OPERATION This chapter describes the operating principles of the circuitry and printer mechanism. 2 1. Block Diagram ..................................................................................................... 11 2. Interface ............................................................................................................... 13 2-1. Interface Types ..................................................................................................... 13
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PRINCIPLES OF OPERATION – 10 –
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PRINCIPLES OF OPERATION 1. Block Diagram The following diagram illustrates the relation between the main logic board and its peripherals. Main Logic Board Host computer Parallel I/F Dipswitch Lamp Gate array EEPROM Printer mechanism Thermal Head driver head EPROM 256K × 8 bits Paper-feed Motor driver PSRAM motor 128K × 8 bits Cutter driver Auto-cutter Kanji ROM 512K × 8 bits Sensor circuit Sensor Peripheral unit CPU Peripheral unit driver Host computer RS232C I/F Switch 5V 24V Power supply uni
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PRINCIPLES OF OPERATION (1) Main Logic Board The main logic board’s CPU passes data transmitted from the host computer into the local RAM. It then reads the data from the RAM, arranges it in accordance with the ROM program, and prints the results by issuing appropriate drive signals to the printer mechanism. [Block Descriptions] a. CPU: HD6413002F16 CMOS single-chip computer. Controls overall printer operation. b. EPROM: 256K × 8 bits Stores the CPU control program. c. PSRAM: 128K × 8 bits Wo
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PRINCIPLES OF OPERATION 2. Interface 2-1. Interface Types 2-1-1. RS232 interface CN6 IC10 IC1 CPU RXD RXD 0 TXD TXD 0 DSR P93 DTR P91 ADM232LJR TTL RTS 232C TTL FAULT P94 232C Comparator Dipswitch 2-3 INIT Comparator Dipswitch 2-4 Fig. 2-2 Serial Interface Data flow from host to printer: IC10 receives serial data from the host through RXD, converts the voltage level from RS232C to TTL, and passes the result to the CPU. The CPU converts the serial data to parallel form and stores the result into
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PRINCIPLES OF OPERATION 2-1-2. Parallel interface CN4 IC4 IC1 CD0 DATA 1 CD1 DATA 2 CD2 DARA 3 CD3 DATA 4 CD4 DATA 5 CD5 DARA 6 CD6 DATA 7 CD7 DATA 8 CSTB STROBE IC5 BUSY BUSY ACK ACK CPU ERROR ERROR SELECT SELECT POUT PAPER OUT Gate array LS05 Fig. 2-3 Parallel interface When the printer is ready (BUSY is LOW), the host computer transmits eight bits of parallel data (DATA1,...,DATA8) to CN4. The data passes through the gate array and moves into the CPU. Printer signals from the CPU (ACK, ERRO
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PRINCIPLES OF OPERATION 2-2. Data Arrangement and Printing 2-2-1. Arrangement The CPU reads data sequentially from RAM and arranges this data in accordance with program instructions stored in EPROM. The arranged data is then converted from parallel to serial form. The gate array then outputs the resulting serial data to the drive controller in the thermal printhead. 2-2-2. Thermal printhead The thermal printhead has 576 heat elements. Printing is executed by switching these elements ON and OFF a
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PRINCIPLES OF OPERATION DO1 DO2 DO3 DO62 DO63 DO64 GNDH VDD BUFFER GNDL VDD CHECKER VDD STB BEO Q Q Q Q Q Q LATCH L L L L L L D D D D D D LAT CTL Q Q Q Q Q Q SO SI D D D D D D SHIFT REGISTER C C C C C C CLK Fig. 2-5 Block Diagram of Drive IC 2-2-3. Head current control Although the thermal printhead has four different STROBE lines, in fact it uses only three strobe signals to control its 576 elements. Specifically, each signal drives 192 of these elements. The signal/element arrangement is sh
