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Samsung SRP-275 Service Manual
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Samsung SRP-275 Service Manual

Bixolon impact printer
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Service Manual

SRP-275

Impact Printer

Rev. 2.00
http://www.samsungminiprinters.com

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Summary of Contents for Samsung SRP-275

  • Page 1: Service Manual

    Service Manual SRP-275 Impact Printer Rev. 2.00 http://www.samsungminiprinters.com...

  • Page 2: Table Of Contents

    SRP-275 ■ Table of Contents 1. Precaution Segment ..........................6 1-1 Safety Precautions..........................6 1-2 Servicing Precaution..........................7 1-3 Precaution for Electrostatically Sensitive Devices(ESDs) ..............7 1-4 Introduction ............................8 2. Installation and Operation ........................9 2-1 Installation............................9 2-1-1 AC Adapter Installation ......................... 9 2-1-2 Interface cable and Cash Drawer cable Installation ..............
  • Page 3 SRP-275 4. Hardware ..............................48 4-1 Wiring Diagram ..........................48 4-1-1 Main board wiring diagram......................48 4-1-2 Connector sub PCB wiring diagram.................... 49 4-2 Block Diagram............................ 50 4-3 PCB Layout & Part List ........................51 4-3-1 Main Board..........................51 4-4-2 ASSY-PCB-CONNECTOR SUB ....................57 4-4-3 ASSY-OPERATION PANEL .......................
  • Page 4 SRP-275 5-4 SRP-275 Whole unit Sub-assembly ....................97 5-4-1 Cover base assy ......................... 97 5-4-2 Switch-paper near end assy ....................... 98 5-4-3 Switch-paper end assy........................ 98 5-4-4 Cover middle assy ........................99 5-4-5 Switch-cover open assy ......................100 5-4-6 Switch-paper near end -W assy....................100 5-4-7 Bracket PCB assy ........................

  • Page 5: About This Manual

    SRP-275 ■ About About this Manual This Service Manual describes how to perform hardware service maintenance for the BIXOLON SRP-275 Impact Printer. Notes Notes may appear anywhere in the manual. They draw your attention to additional information about the item.

  • Page 6: Precaution Segment

    SRP-275 1. Precaution Segment Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 1. Be sure that all built-in protective devices are in place. Restore any missing protective shields.

  • Page 7: Servicing Precaution

    SRP-275 1-2 Servicing Precaution WARNING 1 : First read the “Safety Precautions” section of this manual. If some unforeseen circumstance creates a conflict between the servicing and safety precautions, always follow the safety precautions. WARNING 2 : An electrolytic capacitor installed with the wrong polarity might explode.

  • Page 8: Introduction

    SRP-275 1-4 Introduction The SRP-275 is a high-quality impact dot matrix POS printer. This one-station printer has the following features. • Compact design and light-weight. • High-speed printing using logic-seeking. • Easy to use : Easy paper loading. • High reliability and long life due to the use of stepping motors for head carriage return and paper feeding.

  • Page 9: Installation And Operation

    SRP-275 2. Installation and Operation 2-1 Installation 2-1-1 AC Adapter Installation 1) Make sure the printer is turned off. AC adaptor 2) Before inserting the AC adaptor, connect the Power connector power cord. 3) Insert the AC adaptor as shown.

  • Page 10: Ribbon Cartridge Installation

    SRP-275 2-1-3 Ribbon Cartridge Installation 1) Before inserting the ribbon cassette, turn the knob clockwise to prevent twisting the ribbon. 2) Open the front cover of printer. 3) Take out the old ribbon cassette if there is one. 4) Insert the new ribbon cassette as shown and pay particular attention to the placement of the ribbon in front of the Printer Head.

  • Page 11: Paper Roll Installation

    SRP-275 2-1-4 Paper Roll Installation 1) To prevent data loss, make sure that the printer is not receiving data. 2) Open the rear cover by pushing the open button and push the arrow mark back. 3) Remove the used paper roll core if there is one.

  • Page 12: Changing The Paper Width

    SRP-275 2-1-5 Changing the paper width Screw(3x6)(2pieces) 1) Open the rear cover. Frame paper control 2) Remove the Frame paper control by loosing the two screws(3×6). 3) Reattach the Frame paper control in your wanting position. (Insert and tighten two screws(3×6) to reattach.)

  • Page 13: Wall Mount Installation

    SRP-275 2-1-6 Wall Mount Installation Bracket hanger 1) Turn the Set over and attach the Bracket hanger to the Frame base then tighten four screws. Screw(3x5) (4pieces) 2) Attach the Bracket mount to the wall firmly with the Bracket mount eight screws.

  • Page 14: Operation

    SRP-275 2-2 Operation 2-2-1 Using the operation panel Most of the functions of this printer are governed by software, but you can monitor the printer s status by looking at the lights on the control panel and for some procedures you will use the buttons.

  • Page 15: Error Led Blinking Pattern

    SRP-275 2-2-2 ERROR LED blinking pattern The printer stops all printer operations for the selected paper section, goes off line, and the ERROR LED blinks when an error is detected. • Errors that automatically recover Error Description ERROR LED blinking pattern...

  • Page 16: Hexadecimal Dumping

    SRP-275 2-2-3 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 other data in hexadecimal format along with a guide section to help you find specific commands.
  • Page 17 SRP-275 • Example of Self test sheet !”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGH S E L F T E S T ”#$%&’()*+,-./0123456789:;<=>?@ABCDEFGHI #$%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJ <SRP-275 VER. 1.0> $%&’()*+,-./0123456789:;<=>?@ABCDEFGHIJK %&’()*+,-./0123456789:;<=>?@ABCDEFGHIJKL &’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLM DIP Switch setup status ’()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN ()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNO Interpreter (DIP1_1,2): Epson )*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOP AutoCut (DIP1 _ 3): Enabled *+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQ BusyCondition(DIP1 _ 4): Off.L/BF...

  • Page 18: Setting The Dip Switches

    SRP-275 2-3 Setting the Dip Switches Although the factory settings are best for almost all users, if you have special requirements, you can change the DIP Switch. Your printer has two sets of DIP Switches. The functions of the switches are shown in the following table.

  • Page 19: Dip Switch Setting For Citizen(Idp 3550) Mode

    SRP-275 2-3-2 DIP Switch setting for Citizen(iDP 3550) mode • DIP Switch 1 Switch Function Default Emulation Selection (*1) Refer to the following table Auto cutter Enable Disable CBM2 mode CBM1 mode CBM command (iDP3530 system) (iDP3540 system) International characters (*2)

  • Page 20: Dip Switch Setting For Star(Sp500) Mode

    SRP-275 2-3-3 DIP Switch setting for Star(SP500) mode • DIP Switch 1 Switch Function Default Emulation Selection (*1) Refer to the following table Auto cutter Enable Disable Black/Red Printing Enable Disable Reserved • DIP Switch 2 (RS232C serial interface model)

  • Page 21: Changing The Dip Switch Setting

    SRP-275 2-3-4 Changing the DIP Switch setting If you need to change settings, follow the steps below to make your changes. CAUTION Turn off the printer before removing the DIP Switch cover to prevent an electric short, which can damage the printer.

  • Page 22: Setting The Memory Switches

    Memory Switch setting”. Settings of the Memory Switch are stored in the NV memory; therefore, even if the printer is turned off, the settings are maintained. When you replace a SRP-270 with a SRP-275, you should adjust the MSW 8-5 to OFF.
  • Page 23 When On is selected, a bit of the “rear cover open / close" in each status that is transmitted from the printer is changed every time the rear cover is open or closed. When you replace a SRP-270 with a SRP-275, you should adjust the MSW 8-5 to Off. MSW 8-8: When Off is selected, a bit of the “automatic recoverable error”...
  • Page 24 SRP-275 • Memory Switch Setup Mode The following items are specified in the Memory Switch setup mode: Basic Serial communication condition (Serial communication) - Transmission speed - Parity - Handshaking - Data length Receive buffer full release condition (MSW 8-7)
  • Page 25 SRP-275 • Procedure of Memory Switch setting Entering Memory Switch Setting Mode ① Resetting Basic Serial Interface? Baud rate Handshake Parity Data bit Current Current Current Current setting: setting: setting: setting: 9600 bps DSR/DTR 8 bits 19200bp XON/XOFF Even 7 bits...

  • Page 26: Memory Switch Setting For Star Mode

    SRP-275 2-4-2 Memory Switch setting for Star mode • Settings Memory Switches are from MSW 0 to MSW 8. They are stored in non-volatile memory (flash memory). To change the settings, send the following commands from the host. [Name] Set Memory Switch...
  • Page 27 SRP-275 • Default Settings The default settings for Memory Switch 0 to Memory Switch 8 are shown below. Settings vary for single byte character countries (standard specifications (SBCS)) and for double-byte character countries (Chinese character specifications (DBCS)). - Standard Specifications (SBCS)
  • Page 28 SRP-275 • Function - Memory Switch 0 Function Reserved Red and Black Refer to the following table (inverted black and white) Commands (*3) Reserved SBCS DBCS Country Specifications (*1) (Single Byte countries) (Double Byte countries) <FF> Command (*2) Refer to the following table...
  • Page 29 SRP-275 - Memory Switch 1 Function Reserved Zero style Normal Slash zero International Characters (*1) Refer to the following table NOTES (*1) International Characters Default Value Settings MSW1-3 MSW1-2 MSW1-1 MSW1-0 International Characters U.S.A France Germany U.K. Denmark1 Sweden Italy...
  • Page 30 SRP-275 - Memory Switch 3 Function Character Table (*2) Refer to the following table <CR> Command Functions (*1) Refer to the following table NOTES (*1) <CR> Command Functions MSW3-1 MSW3-0 <CR> Functions 0 Ignored 1 Ignored Prints and performs a line feed (same as <LF>.)
  • Page 31 SRP-275 - Memory Switch 4 Function Automatic Status Function Disabled Enabled Auto-status sent only ESC RS a n command function Only Setting once Data reception error (serial) Prints “?” Ignored - Memory Switch 5 Function Reserved - Memory Switch 6...

  • Page 32: Product Specifications

    SRP-275 3. Product Specifications 3-1 Appearance 3-1-1 Printer Dimensions (mm) • SRP-275A Type • SRP-275C Type (Approx. wt.: 2.4 kg, Shipping. Wt : 3.9 kg) (Approx. wt.: 2.5 kg, Shipping. Wt : 4.0 kg) 3-1-2 AC Adapter Dimensions (mm) - 32 -...

  • Page 33: Feature Locations

    SRP-275 3-1-3 Feature Locations • SRP-275A Type • SRP-275C Type RS-232 PARALLEL 1. Cover base 2. Cover middle 3a. Cover front-A 3b. Cover front 4. Cover rear 5. Button open 6. Power switch 7. Frame-cover DIP 8. DC power jack 9a.

  • Page 34: General Specifications

    SRP-275 3-2 General Specifications Item Description Remark • SRP-275 : RS-232 Serial communication Product • SRP-275P : IEEE 1284 Parallel communication • SRP-275U : USB communication Processor • SAMSUNG S3C4640 (32bit) • Flash : 8Mbits (M29F800DB) Memory • DRAM : 16Mbits •...

  • Page 35: Reference Information

    SRP-275 3-3 Reference information 3-3-1 Printer Mechanism Specification Item Description Remark Model SMP-715 Samsung Printer method Serial impact type Printer direction Bi-directional with logic seeking Printing speed 5.1 lines/sec (9ⅹ7 font 40 columns) Printing resolution 160(W)ⅹ144(L) DPI Paper feeding Performed by step motor Paper Paper roll : 76±0.5(W)ⅹMax.Ø80 mm...
  • Page 36 SRP-275 NOTES If the print duty ratio is too high, the operation of the print head is stopped by the duty limit. In such circumstances, the print speeds shown above cannot be guaranteed. - cpi=characters per inch (*1) Dot configuration 0.352mm...

  • Page 37: Character Specification

    SRP-275 3-3-3 Character Specification Item Description Remark 0.3175 mm Dot interval 0.3528 mm Font type ASCII Chinese Print font 9ⅹ9 7ⅹ9 16ⅹ16 Printing columns Character size (mm) (*1) 1.7ⅹ3.2 1.4ⅹ3.2 5.7ⅹ3.0 Column interval (mm) 2.13 1.59 3.19 Line interval 1/6"...

  • Page 38: Paper Specification

    SRP-275 3-3-4 Paper Specification Item Description Remark Paper type Paper roll • 76±0.5 mm (2.99±0.02”) Paper roll width • 69.5±0.5 mm (2.74±0.02”) • 57.5±0.5mm (2.26±0.02”) Paper roll diameter Max. ø83 mm (3.27") • Thickness : 1 sheet 0.06~0.085 mm (0.0024~0.0034") Normal paper •...

  • Page 39: Environment Conditions

    - Sweep: 10 minutes (half cycle) - Duration: 1 hour - Direction: x, y and z • When packed - Package: SRP-275 standard package - Height: 60cm (23.62") - Directions: 1 corner, 3edges and 6 surfaces Impact resistance • When unpacked - Height: 5cm (1.97")

  • Page 40: Reliability

    SRP-275 3-3-7 Reliability Item Description Remark • Mechanism : Approx. 10 million lines • Auto cutter : Approx. 1 million cuts Life (End of life is defined as the point at which the printer reaches the beginning of the Wear out Period.) Head Approx.

  • Page 41: Printer Head Specification

    SRP-275 3-3-10 Printer Head Specification Item Description Remark Model N09-15KS Type : Ballistic type (Free fight) Number of wire : 9pins Specification Dot pitch : 0.352 (1/72”) Dot wire diameter : 0.3mm (0.01”) Resistance : 18Ω ± 1.5Ω (at 20℃) Inductance : 4.2mH ±...

  • Page 42: Hf(Head Feed) Motor Specification

    SRP-275 3-3-13 HF(Head Feed) Motor Specification Item Description Remark Model PM42S-048-SYM (MOATECH Co., Ltd) Voltage 24VDC±10% Current 640mA / Phase (Peak) Resistance Step angle 7.5° Pull out torque 1300 PPS 324 g·cm 3-3-14 Auto Cutter Specification Item Description Remark Type...

  • Page 43: Interface Specifications

    SRP-275 3-5 Interface Specifications 3-5-1 RS-232C Serial Interface 3-5-1(a) Specification Item Description Remark Data transmission Serial Synchronization Asynchronous Handshaking H/W : DTR / DSR XON : ASC code 11 (Flow control) S/W : XON / XOFF XOFF : ASC code 13 •...
  • Page 44 SRP-275 3-5-1(c) Cable Connection (F.G) 1 1 (F.G) (TXD) 2 2 (RXD) (RXD) 3 3 (TXD) (RTS) 4 4 (DTR) PRINTER HOST SIDE SIDE (CTS) 5 5 (S.G) (25Pin) (9Pin) (DSR) 6 6 (DSR) (S.G) 7 7 (RTS) (DTR) 20...

  • Page 45: Ieee1284 Parallel Interface

    SRP-275 3-5-2 IEEE1284 Parallel Interface Bi-directional parallel interface : In accordance with the IEEE 1284 Nibble / Byte mode 3-5-2(a) Forward Mode Specification (Compatibility mode) Data transmission from host computer to printer : Centronics compatible Item Description Remark Data transmission •...

  • Page 46: Usb Interface

    SRP-275 3-5-2(c) IEEE1284 I/F Cable 3-5-3 USB Interface SRP-275 support the USB (Universal Serial Bus) Communication. 3-5-3(a) Specification Item Description Remark Transfer type • BULK • Bi-direction, Half-duplex Data Signal • Differential signal pair (D+ / D-) • NRZI format Data format •...

  • Page 47: Drawer Kick-Out Specifications

    SRP-275 3-6 Drawer Kick-Out Specifications 3-6-1 Drawer Cable 3-6-2 Cable Connection Pin No. Description Direction Signal GND Drawer kick-out driver signal #1 Output Drawer Open / Close signal Input +24V Drawer kick-out driver signal #2 Output Signal GND - 47 -...

  • Page 48: Hardware

    SRP-275 4. Hardware 4-1 Wiring Diagram 4-1-1 Main board wiring diagram Drawer Interface connector Power jack Printer mechanism - 48 - Rev. 2.00...

  • Page 49: Connector Sub Pcb Wiring Diagram

    SRP-275 4-1-2 Connector sub PCB wiring diagram Rear cover open switch Black mark Sensor Auto cutter connector Main board Paper near end switch Paper near end wall mount switch Paper end Sensor - 49 - Rev. 2.00...

  • Page 50: Block Diagram

    SRP-275 4-2 Block Diagram AC adapter RS-232 RS-232C DC24V driver connector Power +24V supply IEEE1284 Parallel circuit driver connector driver connector Reset circuit Paper end, Sensor home position EEPROM circuit sensor M24C04 Head Printer- Data driver head dot Flash memory...

  • Page 51: Pcb Layout & Part List

    SRP-275 4-3 PCB Layout & Part List 4-3-1 Main Board * Type of SRP-275A : blue color * Type of SRP-275C : green color [[Top view] - 51 - Rev. 2.00...
  • Page 52 SRP-275 [Bottom view] - 52 - Rev. 2.00...
  • Page 53 SRP-275 * Type of SRP-275A (SRP-275MBA) Code no. Description Specification Q'ty Location Serviceable AP02-00063A SRP-275MBAS ASS’Y (A TYPE,STD) AP02-00063D SRP-275MBAG ASS’Y (A TYPE,GB2312) AP02-00063E SRP-275MBAB ASS’Y (A TYPE,BIG5) 9-3-1 K302-00011A PCB-MAIN 4-LAYER, FR-4,T1.6 9-3-2 0903-001282 IC-MICROCONTROLLER S3C4640, 32BIT,QFP,160P 9-3-3 0506-001019...
  • Page 54 SRP-275 Code no. Description Specification Q'ty Location Serviceable C30, C58, C59, C60, C61, C62, C63, C64, C65, C66, 9-3-47 2203-000236 C-CERAMIC,CHIP 0.1nF,5%,50V,C0G,1608 C67, C68, C69, C70, C71, C72, C73, C74, C75, C76, C77, C78, C79, C80, C81 9-3-48 2203-000476 C-CDRAMIC.CHIP...
  • Page 55 SRP-275 * Type of SRP-275C (SRP-275MBC) Code no. Description Specification Q'ty Location Serviceable AP02-00063C SRP-275MBCS ASS’Y (C TYPE,STD) AP02-00063F SRP-275MBCG ASS’Y (C TYPE,GB2312) AP02-00063G SRP-275MBCB ASS’Y (C TYPE,BIG5) 9-3-1 K302-00011A PCB-MAIN 4-LAYER, FR-4,T1.6 9-3-2 0903-001282 IC-MICROCONTROLLER S3C4640, 32BIT,QFP,160P 9-3-3 0506-001019...
  • Page 56 SRP-275 Code no. Description Specification Q'ty Location Serviceable C30, C58, C59, C60, C61, C62, C63, C64, C65, C66, 9-3-48 2203-000236 C-CERAMIC,CHIP 0.1nF,5%,50V,C0G,1608 C67, C68, C69, C70, C71, C72, C73, C74, C75, C76, C77, C78, C79, C80, C81 9-3-49 2203-000476 C-CDRAMIC.CHIP...

  • Page 57: Assy-Pcb-Connector Sub

    SRP-275 4-4-2 ASSY-PCB-CONNECTOR SUB * Type of SRP-275A Code No. Description Specification Q'ty Location Serviceable AP02-00062A PCB-CONNECTOR SUB-A ASS'Y ASS'Y (A TYPE) K302-00019A PCB-CONNECTOR SUB 3-7-1 4-LAYER, FR-4,T1.6 3-7-2 2007-000090 R-CHIP 10Kohm.5%,1/16W,1608 3-7-3 2007-000539 R-CHIP 200ohm,5%,1/16W,1608 3-7-4 2007-000078 R-CHIP 1Kohm,5%,1/16W,1608...

  • Page 58: Assy-Operation Panel

    SRP-275 4-4-3 ASSY-OPERATION PANEL Code No. Description Specification Q'ty Location Serviceable AZ02-00024A ASSY-OPERATION PANEL ASS'Y K302-00013A PCB-OPERATION PANEL 4-LAYER,FR-4,1.6T 7-6-1 7-6-2 0601-001374 DIODE-LED RED, 3pi, DIP D24, D25 7-6-3 0601-001376 DIODE-LED GREED, 3pi, DIP 7-6-4 2007-000539 R-CHIP 200ohm,5%,1/16W,1608 R73, R74, R75...

  • Page 59: Assy-Pcb-Head

    SRP-275 4-4-4 ASSY-PCB-HEAD Code No. Description Specification Q'ty Location Serviceable AP03-00060A ASSY-PCB-HEAD ASS'Y 1-18 K302-00012A PCB-HEAD 4-LAYER, FR-4,T1.6 1-18-1 1-18-2 1003-001049 IC-MOTOR DRIVER SLA7024M,DIP,18P,31M 1-18-3 0604-001237 PHOTO INTERRUPTER RPI352C 1-18-4 0501-000457 TR-SMALL SIGNAL MMBT2222ALT1,NPN, 1-18-5 2007-007961 R-CHIP 1ohm,1%,1W,DA,TP,6432 R6, R7...

  • Page 60: Serial Interface (Rs-232C)

    SRP-275 4-4-5 Serial Interface (RS-232C) * IFC-S TYPE Code No Description Specification Q'ty Location Serviceable JE94-08001A ASSY-PCB-IFC-S TYPE ASS'Y 14-2 JE41-00082N PCB-IFC-S TYPE FR4,4LAYER,T1.6MM 14-2-1 14-2-2 0406-000129 DIODE-TVS P6KE6.8A,6.45/6.8/7. 14-2-3 1006-001262 IC-DRIVER/RECEIVER ST232,SO-16,16P,150M 14-2-4 2007-000070 R-CHIP 0ohm,5%,1608 TP R3, R4...

  • Page 61: Parallel Interface (Ieee1284)

    SRP-275 4-4-6 Parallel Interface (IEEE1284) * IFC-P TYPE Code No. Description Specification Q'ty Location Serviceable JE94-06001A PCB-IFC-P TYPE ASS'Y ASS'Y 14-2 JE41-00082M PCB-IFC-P TYPE FR4,4LAYER,T1.6MM 14-2-1 0801-000928 74HCT245 14-2-2 0406-000129 DIODE-TVS P6KE6.8A,6.45/6.8/7. 14-2-3 R1, R3, R4, R5, R6, R7, R8,...

  • Page 62: Usb Interface

    SRP-275 4-4-7 USB Interface * IFC-U TYPE Code No. Description Specification Q'ty Location Serviceable JE94-07001A PCB-IFC-U TYPE ASS'Y ASS'Y 14-2 JE41-00486B PCB-IFC-U TYPE FR4,4LAYER,T1.6MM 14-2-1 USBN9603-28M,8BIT,SOP, K504-00035A IC-USB CONTROL 14-2-2 28P, 300MIL,48MHz,3.3V R1, R2, R3 14-2-3 2007-000090 R-CHIP 10Kohm.5%,1/16W,DA,T 2007-000239 R-CHIP 1.5Kohm,1%,1/16W,1608...

  • Page 63: Ethernet Interface

    SRP-275 4-4-8 Ethernet Interface * IFC-E TYPE - 63 - Rev. 2.00...
  • Page 64 SRP-275 Code No. Description Specification Q'ty Location Serviceable AP06-00081A PCB-IFC-E TYPE ASS'Y ASS'Y 14-2 K302-00048A PCB-IFC-E TYPE 2-LAYER, FR-4, 1.6T 14-2-1 K508-00043A IC-MICROCONTROLLER AT89C51RC2-RLTIM 14-2-2 K508-00042A IC-SRAM K6R1008V1D-UI10, TSOP2-32 14-2-3 K508-00046A IC-RESET ASM811SEUS_T, SOT143 14-2-4 K508-00045A IC-REGULATOR LM1117, SOT223 14-2-5...

  • Page 65: Schematic Diagram

    SRP-275 4-5 Schematic Diagram 4-5-1 Main Circuit Diagram - 65 - Rev. 2.00...
  • Page 66 SRP-275 - 66 - Rev. 2.00...
  • Page 67 SRP-275 - 67 - Rev. 2.00...
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  • Page 70 SRP-275 - 70 - Rev. 2.00...
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  • Page 72 SRP-275 - 72 - Rev. 2.00...
  • Page 73 SRP-275 - 73 - Rev. 2.00...

  • Page 74: Head Circuit Diagram

    SRP-275 4-5-2 Head circuit diagram - 74 - Rev. 2.00...

  • Page 75: Serial Interface Diagram (Rs-232C)

    SRP-275 4-5-3 Serial Interface Diagram (RS-232C) - 75 - Rev. 2.00...

  • Page 76: Parallel Interface Diagram (Ieee-1284)

    SRP-275 4-5-4 Parallel Interface Diagram (IEEE-1284) - 76 - Rev. 2.00...

  • Page 77: Usb Interface Diagram (Universal Serial Bus)

    SRP-275 4-5-5 USB Interface Diagram (Universal Serial Bus) - 77 - Rev. 2.00...

  • Page 78: Disassembly And Assembly

    SRP-275 5. Disassembly and Assembly To disassembly this printer, perform the assembly procedures described in the reverse sequence. First, the main-assembly blocks are disassembled and divided into the sub assembly blocks, then each of the individual blocks is disassembled. When assembling the printer, check each part and its attachment position by referring to PPL(Product Parts List).

  • Page 79: Lever-Ribbon-Feeder Assy

    SRP-275 5-1-3 Lever-ribbon-feeder assy Part name Assembly procedure ① Lever-ribbon feed 1. Caulk ② Shaft-reduction B on ① Lever-ribbon feed and then ② Shaft-reduction B grease ② Shaft-reduction B with HG-31S. ③ Wave washer 2. Insert ③ Wave washer to ② Shaft-reduction B and then grease ④...

  • Page 80: Carriage Head Assy

    SRP-275 5-1-5 Carriage head assy Part name Assembly procedure ① Head-carriage-(WI) 1. Insert two ② Bearing-metal into ① Head-carriage-(WI) ② Bearing-metal -2ea. 5-1-6 Head-cover assy Part name Assembly procedure ① Cover-head 1. Paste ② Label hot on the left bottom side of ① Cover-head.

  • Page 81: Frame Basket-A Assy

    SRP-275 5-1-7 Frame basket-A assy Part name Assembly procedure ① Frame basket 1. Tighten ⑥ Frame-holder basket-L ass’y to ① Frame basket with ② Roller holder -2ea. two ⑩ Screw-taptite (M3×6). ③ Shaft-roller holder 2. Tighten ⑨ Harness (Jumper cable) and ⑦ Frame-holder ④...

  • Page 82: Frame Basket-C Assy

    SRP-275 5-1-8 Frame basket-C assy Part name Assembly procedure ① Frame basket 1. Tighten ⑥ Frame-holder basket-L ass’y to ① Frame basket with ② Roller holder -2ea. two ⑩ Screw-taptite (M3×6). ③ Shaft-roller holder 2. Tighten ⑨ Harness (Jumper cable) and ⑦ Frame-holder ④...

  • Page 83: Frame-Holder Basket-L Assy

    SRP-275 5-1-9 Frame-holder basket-L assy Part name Assembly procedure ① Frame-holder basket-L 1. Grease Shaft-reduction of ① Frame-holder basket-L caulking caulking ass’y ass’y with HG-31S. ② Gear-reduction 2. Insert ② Gear-reduction to Shaft-reduction of ① Frame-holder ③ Washer-plain (ø2.6) basket-L caulking ass’y and then assemble ③ Washer-plain (ø2.6).

  • Page 84: Frame-Housing Cutter Lower Assy

    SRP-275 5-1-12 Frame-housing cutter lower assy Part name Assembly procedure ① Frame-housing cutter lower 1. Tighten two ② Screw-taptite (M3×4) on ① Frame-housing cutter lower. ② Screw-taptite (M3×4) -2ea. 5-1-13 Cutter lower assy Part name Assembly procedure ① Cutter lower 1.

  • Page 85: Frame-Rotator Assy

    SRP-275 5-1-14 Frame-rotator assy Part name Assembly procedure ① Frame rotator 1. Insert two ② Guide spring in two holes of ① Frame rotator. ② Guide spring -2ea. 2. Tighten ③ Frame-pivot locking-L and ④ Frame-pivot locking-R ③ Frame-pivot locking-L to ①...

  • Page 86: Holder Platen Assy

    SRP-275 5-1-15 Holder platen assy Part name Assembly procedure ① Holder platen 1. Insert three ③ Rubber platen in ② Platen. ② Platen 2. Attach ② Platen to ① Holder platen. ③ Rubber platen -3ea. 3. Tighten ④ Bar holder platen to ① Holder platen with two ⑤...

  • Page 87: Smp715 Printer Mechanism Unit Main-Assembly

    SRP-275 5-2 SMP715 Printer mechanism unit Main-assembly 5-2-1 Main-assembly A Part name Assembly procedure ① Frame-main caulking ass’y 1. Paste ② Label sticker and ③ Plate-insulation on ① Frame- (Sub-assembly 5-1-1) main caulking ass’y. ② Label sticker 2. Grease six shafts on ① Frame-main caulking ass’y with HG-31S.

  • Page 88: Main-Assembly B

    SRP-275 5-2-2 Main-assembly B Part name Assembly procedure ① Gear-RE_A 1. Insert ① Gear-RE_A, ② Ribbon-feeder ass’y and ③ Gear- RE_C to three shafts of Frame-main. ② Ribbon-feeder ass’y 2. Insert ④ Cover HF gear train to two shafts. (Sub-assembly 5-1-2) ③...

  • Page 89: Main-Assembly C

    SRP-275 5-2-3 Main-assembly C Part name Assembly procedure ① Frame basket ass’y 1. Tighten ① Frame basket ass’y on Frame-main with two ② Screw-taptite (M3×6). ② Screw-taptite (M3×6) -2ea. 2. Insert Carriage head ass’y to ③ Shaft-head_guide and then ③ Shaft-head_guide insert ③...

  • Page 90: Main-Assembly D

    SRP-275 5-2-4 Main-assembly D Part name Assembly procedure ① Motor-step (PF motor) 1. Tighten ① Motor-step (PF motor) on Frame-holder basket-L with ② Spring-ribbon two ⑥ Screw-taptite (M3×4). And insert the 4pin connector of ① Motor-step (PF motor) to the connector of PCB-head ass’y.

  • Page 91: Main-Assembly E (For Smp715A Type)

    SRP-275 5-2-5 Main-assembly E (for SMP715A type) Part name Assembly procedure ① Frame-rotator ass’y 1. Attach ① Frame-rotator ass’y on Frame-main and then insert two ② Shaft-pivot -2ea. ② Shaft-pivot and two ③ Spring-rear open. And assemble two ③ Spring-rear open -2ea.

  • Page 92: Main-Assembly E (For Smp715C Type)

    SRP-275 5-2-6 Main-assembly E (for SMP715C type) Part name Assembly procedure ① Frame-rotator ass’y 1. Attach ① Frame-rotator ass’y on Frame-main and then insert two ② Shaft-pivot -2ea. ② Shaft-pivot and two ③ Spring-rear open. And assemble two ③ Spring-rear open ④...

  • Page 93: Auto Cutter Unit Assembly

    SRP-275 5-3 Auto cutter unit assembly 5-3-1 AC timing belt assy Part name Assembly procedure ① Plate-AC belt 1. Attach ② Holder-AC timing belt to ③ Power-AC-timing belt and ② Holder-AC timing belt then insert ① Plate-AC belt to the hole of ② Holder-AC timing belt.

  • Page 94: Ac Upper Cutter Guide Assy

    SRP-275 5-3-3 AC upper cutter guide assy Part name Assembly procedure ① Guide-AC upper cutter 1. Insert ④ AC upper cutter ass’y in ① Guide-AC upper cutter ② Washer-plain (ø2.6) and then insert ③ Shaft-AC-upper cutter into ① Guide-AC ③ Shaft-AC-upper cutter upper cutter.

  • Page 95: Ac Motor Assy

    SRP-275 5-3-5 AC motor assy Part name Assembly procedure ① AC motor ass’y 1. Attach the wire of ① AC motor ass’y to ② PCB-AC ass’y and (Sub-assembly 5-3-6) then solder the land on ② PCB-AC ass’y bottom side. ② PCB-AC ass’y <Check point>...

  • Page 96: Main Assy

    SRP-275 5-3-8 Main assy Part name Assembly procedure ① AC timing belt ass’y 1. Attach ① AC timing belt ass’y to two ⑥ Gear-AC gear pulley (Sub-assembly 5-3-1) and then insert two ⑥ Gear-AC gear pulley to two Shaft-AC- ② AC upper frame caulking ass’y worm/pulley of ②...

  • Page 97: Whole Unit Sub-Assembly

    SRP-275 5-4 SRP-275 Whole unit Sub-assembly 5-4-1 Cover base assy Part name Assembly procedure ① Cover base 1. Attach ② Frame paper control to ① Cover base. ② Frame paper control 2. Insert three ③ PMO-roller paper/end to ① Cover base.

  • Page 98: Switch-Paper Near End Assy

    SRP-275 5-4-2 Switch-paper near end assy Part name Assembly procedure -Switch-paper near end 1. Insert Switch -micro (5.9gf) to -Switch-paper near end. ① ② ① Switch -micro (5.9gf) 2. Solder the land on -Switch-paper near end bottom side and ②...

  • Page 99: Cover Middle Assy

    Part name Assembly procedure Cover middle 1. Insert -roller paper/end to Cover middle ① ② ① ② PMO-roller paper/end 2. Paste Label -logo-SAMSUNG on the front side of Cover ③ ① Label -logo-SAMSUNG middle. ③ Label -logo-BIXOLON 3. Paste Label...

  • Page 100: Switch-Cover Open Assy

    SRP-275 5-4-5 Switch-cover open assy Part name Assembly procedure -switch-cover open 1. Insert itch-micro (5.9gf) to -Switch-cover open. ① ② ① Switch -micro (5.9gf) 2. Solder the land on -Switch-cover open bottom side and ② ① Harness -switch-cover open attach Harness -Switch-cover open on the land.

  • Page 101: Bracket Pcb Assy

    SRP-275 5-4-7 Bracket PCB assy Part name Assembly procedure Bracket PCB 1. Tighten -main ass’y to Bracket PCB with three ③ ① ② ① -main ass’y Screw-taptite (M3×6). ② Screw -taptite (M3×6) - 3ea. 2. Paste four Foot rubber Bracket PCB ③...

  • Page 102: Serial Interface Assy

    SRP-275 5-4-8 Serial interface assy Part name Assembly procedure ① I/F bracket serial 1. Tighten ② Serial PCB ass’y on ① I/F bracket serial with two ③ ② Serial PCB ass’y Nut-hexagon. ③ Nut-hexagon -2ea. 5-4-9 cover front-A assy Part name...

  • Page 103: Whole Unit Main-Assembly

    SRP-275 5-5 SRP-275 Whole unit Main-assembly 5-5-1 Main-assembly A (for SRP-275A type) Part name Assembly procedure ① SMP715A printer mechanism ass’y 1. Insert four Rubber -damper to a half circle groove of ① ② Rubber -damper SMP715A printer mechanism ass’y.
  • Page 104 SRP-275 Part name Assembly procedure Switch -paper end ass’y 4. Tighten Switch -paper end ass’y on the bottom of Frame paper ⑤ ⑤ Screw -tapping (M2×5) -2ea. with two Screw -tapping (M2×5). ⑥ ⑥ - 104 - Rev. 2.00...

  • Page 105: Main-Assembly A (For Srp-275C Type)

    SRP-275 5-5-2 Main-assembly A (for SRP-275C type) Part name Assembly procedure ① SMP715C printer mechanism ass’y 1. Insert four Rubber -damper to a half circle groove of ① ② Rubber -damper SMP715C printer mechanism ass’y. ② Cover base 2. Tighten ① SMP715C printer mechanism ass’y on the boss of ③...
  • Page 106 SRP-275 Part name Assembly procedure Switch -paper end ass’y 4. Insert the 5pin connector of Harness-AC in the connector of PCB- ⑤ Screw -tapping (M2×5) -2ea. connector sub ass’y. ⑥ 5. Tighten Switch -paper end ass’y on the bottom of Frame paper ⑤...

  • Page 107: Main-Assembly B

    SRP-275 5-5-3 Main-assembly B Part name Assembly procedure ① Cover middle 1. Tighten Cover middle on Cover base with four Screw -taptite ① ② Screw -taptite (M3×10) -4ea. (M3×10). ② 2. Insert Harness-switch-rear cover open and Harness-switch- paper near end-W to a square hole of Cover base.
  • Page 108 SRP-275 Part name Assembly procedure 3. Insert the 2pin connector of Switch-rear cover open ass’y and the 2pin connector of Switch-paper near end-W ass’y in the connectors of PCB-connector sub ass’y. Harness-Switch-paper near end-W Harness-Switch-rear cover open - 108 -...

  • Page 109: Main-Assembly C

    SRP-275 5-5-4 Main-assembly C Part name Assembly procedure Bracket PCB ass’y 1. Tighten Harness-jumper cable to the side hole of Bracket PCB ① ① (Sub-assembly D) ass’y with Screw -taptite (M3×6). ② Screw -taptite (M3×6) 2. Insert FPC-connector sub (16pin) to Bracket PCB ass’y...

  • Page 110: Main-Assembly D

    SRP-275 5-5-5 Main-assembly D Part name Assembly procedure Frame -base 1. Tighten Frame -base on Bracket PCB ass’y with four Screw ① ① ⑥ Frame -cover DIP taptite (M3×6). ② ③ Serial interface ass’y 2. Tighten Frame -cover DIP on...
  • Page 111 SRP-275 Part name Assembly procedure Button open 4. Insert Button open to Cover rear and then tighten Cover ④ ④ ⑤ ⑤ ⑤ Cover rear rear on Frame-rotator ass’y with two Screw -taptite (M3×6). ⑥ ⑥ Screw-taptite (M3×6) -9ea 5. Assemble Cover front -A ass’y to Cover base.

  • Page 112: Adjustments And Maintenance

    SRP-275 6. Adjustments and Maintenance 6-1 Adjustment When assembling this printer, be sure to refer to the required adjustment procedure. To ensure normal operation of the printer after disassembly or replacement of a Component for maintenance or repair. Be sure to perform along to the required method.

  • Page 113: Maintenance

    SRP-275 6-2 Maintenance To ensure the maintenance of this printer at its initial performance level throughout a long product life as well as preventing potential troubles, be sure to perform maintenance and management according to the points described in the following subsections.

  • Page 114: Lubricants And Adhesive Application

    SRP-275 6-3 Lubricants and adhesive application Lubrication and application adhesive plays an important role in maintaining this printer at its initial performance level, throughout a long product life as well as preventing potential troubles. Make sure to apply the specified lubricants or adhesive in the appropriate amounts at the specified intervals .

  • Page 115: Tools, Lubricants And Adhesives

    SRP-275 6-4 Tools, lubricants and adhesives 6-4-1 List of tools Tool designation Availability Brush #1 ○ Brush #2 ○ Cleaning brush ○ Screwdriver (+) No.2 ○ Tweezers ○ Round pliers ○ Diagonal cutting nipper ○ Electric Soldering iron Thickness gauge ○...

  • Page 116: Troubleshooting

    SRP-275 7. Troubleshooting Use the following to troubleshoot and repair the printer: • Troubleshooting flow chart When the source of the problem is not clear, use the flowchart to find and replace a defective component. • Troubleshooting tables Follow the steps outlined in these tables to repair a defect whose symptoms are known.

  • Page 117: Power Led Does Not Light

    SRP-275 A. POWER LED does not light Is AC adaptor & power cord connected properly? Connect AC adaptor & power cord properly. Does AC adaptor have proper output voltage rating? (approx. +24V) Replace AC adaptor. Has fuse FU1 on main PCB blown?

  • Page 118: Paper Led Is Lit

    SRP-275 B. PAPER LED is lit Turn power off, then once again Is paper roll in paper near-end condition or not inserted? Replace or insert paper roll Is paper-end switch, paper near-end switch continuity normal? Replace Switch-paper-near end ass’y or Switch-paper-end ass’y Replace PCB-main ass’y...

  • Page 119: Error Led Is Blink

    SRP-275 C. ERROR LED is blink PATTERN A PATTERN B Blinking pattern A ? Replace PCB-AC ass’y (home position sensor) Blinking pattern B ? Replace PCB-AC ass’y (home position sensor) Replace PCB-main ass’y Replace printer mechanism ass’y (SMP715) - 119 -...

  • Page 120: Error Led Is Lit

    SRP-275 D. ERROR LED is lit Turn power off, then once again Is rear cover closed properly? Replace Switch-rear cover open ass’y Close rear cover properly Replace PCB-main ass’y - 120 - Rev. 2.00...

  • Page 121: Self Test Is Not Normal

    SRP-275 E. Self test is not normal Does not printer operate at all? Is output voltage of regulator on PCB-main within SPEC?(*1) Replace PCB-main ass’y Printing is carried out, but print quality is deficient or paper feeding is not normal Replace printer mechanism ass’y...

  • Page 122: Data From Host Is Not Printed Normally

    SRP-275 F. Data from host is not printed normally Send data from host to printer Are interface parameters set to identical values at host and printer? Make settings identical Does interface cable match specifications? Replace with a proper cable Replace interface PCB ass’y...

  • Page 123: Troubleshooting Flow Tables

    SRP-275 7-2 Troubleshooting flow tables If a problem that can be verified by visual examination has occurred, use the tables below to determine the cause and perform repairs. There are four tables, divided by symptom category : • Initialization Problems •...

  • Page 124: Initialization Problems

    SRP-275 7-2-1 Initialization problems Problem Probable Cause Level Checkpoint Action Check 24V input voltage at J11 Replace external Output voltage of internal AC adaptor output voltage Power supply unit or PCB- or PCB-main ass’y failure (Abnormal +5V(C55)/24V control circuit and regulator circuit) main ass’y or fuse...

  • Page 125: Printing Quality Problems

    SRP-275 7-2-2 Printing quality problems Problem Probable Cause Level Checkpoint Action Check if the FPC-head is FPC-head connector is disconnected If is not, securely properly inserted into reinsert the FPC- with PCB-head ass’y and Printer- connector of head and its...

  • Page 126: Printer Mechanism Problems

    SRP-275 7-2-3 Printer mechanism problems Problem Probable Cause Level Checkpoint Action Use paper roll that Check the width, length and corresponds to thickness of the paper specifications Defective paper supply Remove any Check paper roll path for obstacles from paper...

  • Page 127: Auto Cut Mechanism Problems

    SRP-275 7-2-4 Auto cut mechanism problems Problem Probable Cause Level Checkpoint Action Paper does not cut despite Reassemble No intersection between Cutter Auto cutter ass’y or normal Check for intersection and Cutter lower operation of Cutter lower ass’y Motor-DC Defective...

  • Page 128: Appendix (Mechanism Operating Principles)

    SRP-275 8. Appendix (Mechanism operating principles) The printer mechanism of the SRP-275 consists of the following component mechanisms: • Transport mechanism • Printing mechanism • Detection mechanism • Auto cutter mechanism • Easy paper loading mechanism These components are described in detail in the following sections.

  • Page 129: Paper Feeding System

    SRP-275 8-1-2 Paper feeding system Paper feeding is performed by conveying the PF(Paper Feed) motor’s rotational power from the PF motor pinion through the Gear reduction and Gear feeding. Since the Shaft-rubber roller and Roller holder are pressed together, paper advances to the top of the Rotator ass’y because of the friction between the rubber of the Shaft-rubber roller and the Roller holder.

  • Page 130: Ribbon Feeding System

    SRP-275 8-1-3 Ribbon feeding system When the HF motor rotates CCW(CounterClockWise) and the HF motor pinion rotates in the direction of arrow A, Gear-RE(REduction)_B, Gear-RE_A and Gear-RE_B' rotate in the directions of arrows B, and C, D respectively. This causes the Lever ribbon feeder ass’y to move in the direction of arrow E, rotating round the Shaft-reduction A/C in the center, until the Gear-RE_B' goes in with the Gear-RE_C.

  • Page 131: Printing Mechanism

    SRP-275 Carriage head ass'y Lever-change color Frame-ribbon MOVING RIBBON UPWARD HEAD CARRIAGE SHIFT(BLACK-->RED) Frame-ribbon Lever-change color Solenoid MOVING RIBBON DOWNWARD SOLENOID ON(RED-->BLACK) 8-2 Printing mechanism When the specified print head drive pulse is input to the drive coil, the iron core is magnetized, and the actuating plate is pulled in the direction of arrow A.

  • Page 132: Detection Mechanism

    SRP-275 8-3 Detection mechanism Each of the detection component mechanism in the SRP-275 and their corresponding function are listed below. Detailed explanations of each of the detection mechanism are provided in this section. Detection mechanism Function Home position Initial setting of SRP-275...

  • Page 133: Paper Near End Detection Mechanism

    SRP-275 8-3-2 Paper near end detection mechanism Paper near end detection mechanism consists of Switch-paper near end and Switch-paper near end-W (using the wall mount). These switches detect the amount of paper left on the paper roll through OR logical operation.

  • Page 134: Paper End Detection Mechanism

    SRP-275 8-3-3 Paper end detection mechanism The Switch-paper end consists of the paper end detection lever and micro switch, and is located on the center of the Frame basket. This switch detects the presence/absence state of the paper roll. The tip of the paper end detection lever is always pressed against the paper roll by a spring inside the micro switch.

  • Page 135: Auto Cutter Mechanism

    SRP-275 8-4 Auto cutter mechanism When the Auto cutter motor set drives the worm gear so that it rotates in the direction of arrow A, the rotational force is transferred to the Gear-AC worm wheel and Gear-AC gear pulley (Belt drive pulley).

  • Page 136: Easy Paper Loading Mechanism

    8-5 Easy paper loading mechanism SRP-275 has easy paper loading mechanism which enables a paper loading and a paper jam to be solved easily. When a paper jam happens or a paper is out, push Button open then the force will be transferred to Arm open.

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