Service Manual SRP-150 Thermal Printer Rev. 1.02 http://www.bixolon.
SRP-150 ■ Table of Contents 1. Precaution Segment ...................................................................................................................................4 1-1 Safety Precautions..................................................................................................................................4 1-2 Servicing Precaution...............................................................................................................................
SRP-150 4. Hardware ...................................................................................................................................................28 4-1 Wiring Diagram .....................................................................................................................................28 4-2 Block Diagram.......................................................................................................................................
SRP-150 1. Precaution Segment 1-1 Safety Precautions 1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields. 2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices including: nonmetallic control knobs and compartment covers. 3. Make sure that there are no cabinet openings through which people – particularly children - might insert fingers and contact dangerous voltages.
SRP-150 1-2 Servicing Precaution WARNING 1: First read the Safety Precaution section of this manual. If some unforeseen circumstance creates a conflict between the servicing and safety precautions, always follow the safety precaution. WARNING 2: An electrolytic capacitor installed with the wrong polarity might explode. 1.
SRP-150 1-3 Precaution for Electrostatically Sensitive Devices (ESDs) 1. Some semiconductor (solid state) devices are easily damaged by static electricity. Such components are called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field-effect transistors. The following techniques will reduce the occurrence of component damaged caused by static electricity. 2.
SRP-150 2. Installation and Operation 2-1 Installation 2-1-2 Interface Cable(P,S) Installation 2-1-1 AC Adapter Installation Interface Cable Parallel / Serial Interface Connector Figure 2-1-2. I/F Cable Installation Figure 2-1-1. AC Adapter Installation 1. Mack sure the printer is turned off with the side of the switch. 2. Plug the power cord into the SMPS on the printer. 3. Plug the AC Adapter power cord into the wall outlet. 1. Turn off the printer, host ECR and Computer. 2.
SRP-150 2-1-6 Paper Roll Installation 2-1-5 Cover Open Installation A B Figure 2-1-6. Paper Roll Installation Figure 2-1-5. Cover Open Installation 1. Open the cover printer and remove the used paper roll core if there is one. 2. Load the paper roll on the paper holder as shown. 3. Close the cover printer. 1. Press push button (A) to release the cover lock. 2. Lift the cover assembly (B) by hand and open the cover. Rev. 1.
SRP-150 2-2 Operation 2-2-1 Setting the DIP switches The DIP switches are located on the bottom of the printer. The DIP switches are used to set the printer to perform various functions. Follow these when changing DIP switches setting : A 1. Remove three screws (A) at the bottom of the device. 2. Set the DIP switches in the PCB assembly to the desired configuration. ※ Note : Always change DIP switch settings only when the printer is turned off.
SRP-150 2-2-4 Setting the Memory Switches This printer has “Memory Switch” set which is software switches. Memory Switch set has “MSW1”, “MSW2”, “MSW8”, “MSW9” “Customize value”, “Serial communication condition”. “Memory Switch setting utility” can change the Memory Switch set to ON or OFF as shown in the table below. (default : all OFF) ※ NOTE - The Memory Switch is available to be changed by three methods. - Memory Switch setting utility. - Control from ESC/POS command.
SRP-150 MSW9 Switch 1 2~4 5~8 MSW9-8 OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON MSW10 Switch 1~2 3 4~5 6~8 MSW10-8 OFF OFF OFF OFF ON ON ON ON Rev. 1.
SRP-150 2-2-5 Hexadecimal Dumping This feature allows experienced users to see exactly what data is coming to the printer. This can be useful in finding software problems. when you turn on the hexadecimal dump function, the printer prints all commands and data in hexadecimal format along with a guide section to help you find specific commands. To use the hexadecimal dump function, follow these steps : 1. After you make sure that the printer is off. Open the cover. 2.
SRP-150 ASCII !"#$%&'()*+,-./0123456789:;<=>?@ "#$%&'()*+,-./0123456789:;<=>?@A #$%&'()*+,-./0123456789:;<=>?@AB $%&'()*+,-./0123456789:;<=>?@ABC %&'()*+,-./0123456789:;<=>?@ABCD &'()*+,-./0123456789:;<=>?@ABCDE '()*+,-./0123456789:;<=>?@ABCDEF ()*+,-./0123456789:;<=>?@ABCDEFG ) * + , - . / 0 1 2 3 4 5 67 8 9 : ; < = > ? @ A B C D E F G H *+,-./0123456789:;<=>?@ABCDEFGHI +,-./0123456789:;<=>?@ABCDEFGHIJ , -. /0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K -./0123456789:;<=>?@ABCDEFGHIJKL .
SRP-150 3. Product Specifications 3-1 Appearance 3-1-1 Printer Dimensions (mm) 124 131 194.5 Figure 3-1-1. Printer Dimension Rev. 1.
SRP-150 3-1-2 Feature Locations 1 2 4 3 5 6 7 1. 2. 3. 4. 5. Push button Cover cutter Cover function Cover paper Case main Rev. 1.02 8 9 10 8 9 6. Power Button 7. Parallel(IEEE1284) / Serial(RS-232C) 8. DK(RJ11) 9. Power Inlet(AC Power cord) 10. USB2.0( B-type) Figure 3-1-2.
SRP-150 3-2 General Specifications Item Product Processor Memory Interface Serial (RS-232C) Interface Parallel USB Printer Auto Cutter Power Consumption SMPS Environment Condition Weight Dimensions(mm) Description Remark • SRP-150 : Serial Communication (RS-232C) • SRP-150P : Parallel Communication (IEEE1284) • SRP-150U : USB2.
SRP-150 3-3-2 Character Specification Item Description Number of Character Remark • Alphanumeric Characters : 95 • 12 x 24 (Font A) (Including 2-dot spacing in horizontal) • 24 X24 (GB2312) Character Structure Table 3-3-2. Thermal Printer Character Specification 3-3-3 Paper Specification Item Description Paper Type • Mono :TF50KS-E(Nippon paper) Paper Form • Paper Roll Paper Width • 58mm(+0,-1) Paper Roll Size Remark • Max 80mm(3.14”) Table 3-3-3.
SRP-150 3-3-5 Printable Area a b d c e Figure 3-3-5. Printable Area Item a b c d e Dots Font 12X24 Description 58+0,-1mm(2.28” ±0.039) 1.5 (0.059” ) 48±0.2mm(1.889” ±0.0078) 4.5±0.8mm(0.177” ±0.0314) 4.5±0.8mm 384 42 Character Remark 3-3-6 TPH (Thermal Printer Head) Specification Item Description Remark Model SAJ048-8A442(AOI Electronics) Heat Element Structure 2 Heaters / Dot Number of Heat Element 384 Dots Heat Element Pitch 0.125mm/dot, 8Dot/mm Print Width Average Resistance 48±0.
SRP-150 3-3-7 Other Component Specification Item Auto Cutter Paper Feed Motor Paper End Sensor Description • Model : 25BY46S-122( CHANGZHOU LEILI MOTOR) •Type : Guillotine Type • Motor : Step Motor • Voltage : 7.8±10% VDC • Resistance : 30 Ω(Phase±10%) • Inductance : 4.5±25% mH • Model : 15BY45-87( CHANGZHOU LEILI MOTOR) • Type : 2-Phase, Bi-Polar • Voltage : 7.
SRP-150 3-5 Interface Specifications 3-5-1 RS-232C Serial Interface 3-5-1(a) Specification Item Data Transmission Synchronization HandShaking (Flow Control) Signal Level Baud Rate Data Word Length Parity Stop Bit Connector Description Remark • Serial • Asynchronous • H/W : DTR/DSR • Logic1 (MARK) : -3V ~ -15V • Logic0 (SPACE) : +3V ~ +15V • 9600/19200/38400/115200 Bps • 8 bit • None •1 • DB25P Female (I/F PBA) Table 3-5-1(a) RS-232C Specification ※ Note : The HandShaking (Flow Control) / Data Word Lengt
SRP-150 3-5-1(c) Cable Connection PRINTER MALE (DB9P) HOST FEMALE (DB9P) Figure 3-5-1(c) RS-232C Cable Connection 3-5-1(d) Signal Description Pin No. 1 2 3 Signal name FG TXD RXD 4 DSR 5 GND 6 DTR 7 8 9 CTS RTS CTS Rev. 1.02 Direction Output Input Function Frame Ground Transmit Data Receive Data This signal indicates whether the host computer can receive data. (H/W flow control) 1) MARK(Logic1) : The host can receive a data. 2) SPACE(Logic0) : The host can not receive a data.
SRP-150 3-5-1(e) H/W Flow Control When DTR/DSR flow control is select, before transmitting a data, the Printer checks whether the host is BUSY or not. If the host is BUSY, the Printer does not transmit a data to the host. If the host is not BUSY, the Printer transmits a data to the Host. The host is the same. Refer to the Interface Part of Chapter 7 (Special Circuit Diagrams).
SRP-150 3-5-2(c) Signal Specification (Compatibility/Nibble/Byte mode) Pin No.
SRP-150 3-5-3 USB2.0 Interface USB (Universal Serial Bus) Serial Communication. 3-5-3(a) Specification Item Transfer Type Data Signal Data Format Transceiver Speed Cable & Connector Other Description • BULK • Bi-direction, Half-Duplex • D+/D• NRZI Format • Zero Bit Stuffing after 6 ones • Differential Receive Sensitivity : 200[mV] • Differential common Mode Range : 0.8 ~ 2.5[V] • Single-End Receiver Threshold : 0.8 ~ 2.0[V] • 12 Mbps • Cable : 5m / 2m • Connector : B Type • Support USB SPEC V1.
SRP-150 Figure 35-3(c) USB Cable 3-5-4(d) Construction Raw materials used in the fabrication of this cable must be of such quality that the fabricated cable is capable of meeting or exceeding the mechanical and electrical performance criteria of the most current USB Specification revision and all applicable domestic and international safety/testing agency requirements; e.g., UL, CSA, BSA, NEC, etc., for electronic signaling and power distribution cables in its category.
SRP-150 ※ Note: Minimum conductor construction must be stranded tinned copper. To minimize end user termination problems, USB uses a keyed connector protocol. The physical difference in the Series A and B connectors insures proper end user connectivity. The A connector is the principle means of connecting USB devices directly to a host or to the downstream port of a hub. All USB devices must have the standard Series A connector specified in this chapter.
SRP-150 3-6 Cash Drawer Specifications 3-6-1 Drawer Cable Ferrite Core : 1 turn (OP-18E : 18.2 x 12.5 x 25.5) Figure 3-6-1 Drawer Cable 3-6-2 Cable Connection Pin No. 1 2 3 4 5 6 Description Frame GND Drawer Kick-Out Driver Signal #1 Drawer Open / Close Signal +12V Drawer Kick-Out Driver Signal #2 Signal GND Table 3-6-2 Drawer Cable Connection ※ Note : +12V is always output through pin 4 during power on. Rev. 1.
SRP-150 4. Hardware 4-1 Wiring Diagram Figure 4-1-1 ARP-105P Board Wiring Diagram Rev. 1.
SRP-150 Figure 4-1-2 SRP-150S Board Wiring Diagram Figure 4-1-3 SRP-150U Board Wiring Diagram Rev. 1.
SRP-150 4-2 Block Diagram Figure 4-2-1 SRP-150P Block Diagram Figure 4-2-2 SRP-150S Block Diagram Rev. 1.
SRP-150 Figure 4-2-3 SRP-150U Block Diagram Rev. 1.
SRP-150 4-3 Special Circuit Descriptions 4-3-1 Power Circuit This system is operated under 100Vac or 240Vac. The power circuit supplies the three differential DC voltage sources. Figure 4-3-1 Power Block Diagram No. 1 2 3 4 VOLTAGE VPP(+12VDC) VTH(+8.5VDC) Vcc(5 VDC) Vdd(+3.3VDC) DESCRIPTION Cash Drawer Solenoid Driving Thermal Printer Head (TPH) Voltage / Step Motor Voltage Logic CPU, Flesh, SRAM, Reset Voltage, Sensor Voltage No1. Drawer Driving: +12VDC +12VDC is supplied from SMPS.
SRP-150 4-3-2 RESET Circuit Reset signal is signal in order to start-up CPU under Power-on. Reset circuit uses a reset KIA7027. When 3.3Vdc is fallen under 2.7Vdc by Power-off, reset signal prohibits the system from miss-operating by lowering down to 0V. Figure 4-3-2-1 Reset Block Diagram Figure 4-3-2-2 Reset Waveform Rev. 1.
SRP-150 4-3-3 Cash Drawer Circuits 1) Cash Drawer Driving Circuit The circuit is used for opening cash drawer and driven by the 2SD2170. When its state is high level signal, 2SD2170 drive the solenoid to open the cash drawer. As an optional item, we provide sensor switch (we call it a compulsory switch) which checks the drawer whether it is opened or not. This sensor switch turns on for the drawer open condition, and turns off for the other.
SRP-150 Figure 4-3-4-2 RS-232C Communication Waveform 4-3-5 Parallel Communication Block Diagram The printer support the bidirectional Parallel Interface with Centronics, Nibble, Byte Mode. The Centronics is Forward and the Nibble, Byte are reverse Mode. UPD70F738 Figure 4-3-5 IEEE1284 Communication Block Diagram Rev. 1.
SRP-150 4-3-6 USB2.0 Communication Block Diagram The printer support the USB (Universal Serial Bus). The transfer type of the printer is the BULK. UPD70F738 Figure 4-3-6 USB2.0 Communication Block Diagram 4-3-7 DIP Switch Circuit The key board circuits consist of 4 lines. The CPU reads the DIP S/W only once at power on. UPD70F738 Figure 4-3-7 USB Communication Block Diagram Rev. 1.
SRP-150 4-3-8 Thermal Printer Head Circuit First, the CPU sends a Serial Clock and Serial Data 384Bits(48byte) to the Shift Register of the Thermal Printer. The Serial Data are stored to Shift Register in the Thermal Printer. STB No. DOT No. DOTs/STB 64 1 ~ 64 STB1 64 65~128 STB2 64 129~192 STB3 64 193~256 STB4 64 257~320 STB5 64 321~384 STB6 Figure 4-3-8-1 Thermal Printer Block Diagram Rev. 1.
SRP-150 Figure 4-3-8-2 Thermal Printer Timing Waveform Rev. 1.
SRP-150 5. Disassembly and Assembly Ass’y Cover-paper Ass’y platenpanel Cover-pin Screw Ass’y Case main 1. Remove two cover pins. 2. Remove two screws from the Ass’y cover-paper and separate the Ass’y platen-panel. Cover-Cutter Roller-paper-end Avoid scratching Ass’y Case-main 1. Separate the cover cutter. 2. Separate the roller-paper-end from the Ass’y-Case-main. - Take care not to scratch the surface contacting the paper while separating them.
SRP-150 Ass’y-bracket-pcb-main SMPS Ass’y- Case-main 1. Remove three screws. 2. Remove the SMPS & Ass’y-bracket-pcb-main from the Ass’y-Case-main. - Take care not to damage or cut wires while separating the FPC and connectors connected to the board. Ass’y-pcb-main Screw Ass’y-power-switch Ass’y-Bracket-pcb 1. Remove four screws. 2. Separate the Ass’y-bracket-pcb from the Ass’y-pcb-main. Rev. 1.
SRP-150 Screw Holderbutton Case-main Ass’y-function Buttonpush 1. Remove two screws. 2. Separate the holder-button and button-push from the case-main. - Push the boss part of the button-push in the direction of the arrow shown in the picture to easily remove it. Screw Ass’y-pcb-function Buttonfeed 1. Remove two screws. Ledholder 2. Separate the parts including the Ass’y-pcb-function. - Care must be taken while assembling the button-feed as it must be assembled in the right direction.
SRP-150 6. Maintenance 6-1 Maintenance Paper dust in the heating elements may lower the print quality. In this case, clean the print head as follow; ※ Caution: Turn off the printer power before cleaning. ※ Caution: Note that the thermal head (Thermal element and Radiation plate) becomes very hot during normal operation, creating the danger of burn injury. Be sure to wait for about 10 minutes after turning printer power off before beginning the cleaning. 1. Open the cover-open. 2.
SRP-150 7. Troubleshooting This chapter describes the methods for troubleshooting in this Receipt Printer. 7-1 Power Problem If a problem that can be verified by visual examination has occurred, use the tables below to determine the cause and perform repairs.
SRP-150 Printing quality problems Problem Certain parts are printed in white lines vertically Certain parts are printed in black lines vertically Horizontal black lines are generated, or the vertical width of the characters is reduced Overall printing density is low Rev. 1.
SRP-150 Printer mechanism problems Problem Paper feeding failure The cover cannot be opened by pressing the OPEN button Cover cannot be closed Error LED is on while the printer is in ready state Error LED is on while the printer is in ready state Jointing or bouncing sound during feeding operation Entered characters and printed characters are different Probable Cause Level Feeding motor failure B Gear is dislocated from the rotating axis B Paper jam occurs B Check the paper jam Auto cutter jam o
