Star Micronics SP500 Series Technical Manual
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Star Micronics SP500 Series Technical Manual

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DOT MATRIX PRINTER
SP500 Series
TECHNICAL MANUAL
[ SECOND EDITION ]

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  • Page 1 DOT MATRIX PRINTER SP500 Series TECHNICAL MANUAL [ SECOND EDITION ]...
  • Page 2 However, should any errors be detected, STAR would greatly appreciate being in- formed of them. • The above notwithstanding, STAR can assume no responsibility for any errors in this manual. © Copyright 2002 Star Micronics Co.,Ltd.

  • Page 3: Adjustments

    INTRODUCTION This manual describes the thermal printer SP500 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.

  • Page 4: Table Of Contents

    CHAPTER 1 ADJUSTMENTS This printer has undergone various adjustments so that it will attain a given standard of performance. In this chapter, a brief explanation is given of the methods for making adjustments. Follow the instructions when performing maintenance inspections or when replacing parts to correct malfunctions.

  • Page 5: Adjustment Of The Gap Between The Print Head And The Platen

    Adjustment of the Gap Between the Print Head and the Platen 1-1. Measuring the Gap Between the Print Head and the Platen 1. Remove the ribbon base as described in chapter 2. 2. Remove the ribbon separator [1] as described in chapter 2.

  • Page 6: Adjusting The Gap Between The Print Head And The Platen

    1-2. Adjusting the Gap Between Print Head and the Platen 1. Raise and lower the adjusting bushing [5] on the left side to adjust the left head gap. 2. Raise and lower the adjusting bushing [6] on the right side to adjust the right head gap. Fig.

  • Page 7: Adjustment Of The Dot Alignment

    Adjustment of the Dot Aligment 1. Set the roll paper. 2. Press the FEED switch on the printer's control panel while turning the power switch ON. 3. Enter the Adjusting the dot alignment mode by releasing the FEED switch after the buzzer sounds twice. 4.
  • Page 8 Fig. 1-6 Dot Alignment Adjustment Sample 2 6. After the printout is printed, the printer settings will be entered into the nonvolatile memory of the printer. When the settings are entered into memory, the long buzzer sounds once more, and the dot alignment mode is complete.

  • Page 9: Adjustment Of The Black Mark Sensor Alignment

    Adjustment of the Black Mark Sensor Alignment 1. Turn the printer off and unplug the power cord. 2. Remove the screws. Then, remove the DIP switch cover on the bottom of the printer. Power off VR22 VR22 Fig. 1-7 Adjustment Volume 3.
  • Page 10 CHAPTER 2 PARTS REPLACEMENT This chapter explains disassembly and reassembly of the printer. Note the following precautions during disassembly and reassembly. Disconnect the printer power cord plug from the wall outlet before servicing it. Assembly is the reverse of disassembly unless otherwise specified. After reassembly, coat the screw heads with locking sealant.

  • Page 11: Case Unit

    Case Unit Turn off the power switch 1, disconnect the power cord from the wall outlet. Lift up the front of printer cover 2 and open printer cover. Spread to the outside at points A (left / right) of printer cover 2 and remove printer cover.

  • Page 12: Printer Mechanism

    Printer Mechanism 2-1. Tear bar type Turn off the power switch, disconnect the power cord from the wall outlet. Remove the case unit according to the procedure described in item 1. Remove • Two screws 1 • Flat cable 3 •...

  • Page 13: Auto Cutter Unit

    Auto Cutter Unit (Auto cutter type only) Turn off the power switch, disconnect the power cord from the wall outlet. Remove the printer mechanism according to the procedure described in item 2. Remove • Two screws 1 • Cutter holder plate R 2 •...

  • Page 14: Motor Unit

    Motor Unit Turn off the power switch, disconnect the power cord from the wall outlet. Remove the ribbon base according to the procedure described in item 4. Remove • Flat cable 1 Remove the four lead wires by using a soldering iron.

  • Page 15: Ribbon Separator

    Ribbon Separator Turn off the power switch, disconnect the power cord from the wall outlet. Remove the ribbon base according to the procedure described in item 4. Remove • Ribbon separator 1 Use a tweezers for precision instruments. a) The A portion 2 on the left and right ribbon separator (see Fig.

  • Page 16: Main Logic Board Unit

    Main Logic Board Unit Turn off the power switch, disconnect the power cord from the wall outlet. Remove the printer mechanism according to the procedure described in item 2. Remove • Two screws 1 • Two screws 2 • Mechanism base 3 •...

  • Page 17: Black Mark Detector Board Assembly

    10. Black Mark Detector Board Assembly Turn off the power switch and disconnect the power cord from the wall outlet. Remove the printer mechanism according to the procedure described in item 2. Remove • Screw 1 • Black mark detector board assembly 2 •...
  • Page 18 Right edge of 76mm paper Left edge of 58mm paper Left edge of 76mm paper Printing side Printing side Printing side Hole N Hole N Hole N Lead wires Position 1 (Default) Position 2 Position 3 Left edge of 76mm paper Left edge of 58mm paper Right edge of 76mm paper Reverse side...
  • Page 19 CHAPTER 3 MAINTENANCE AND LUBRICATION Maintenance ................... 17 1-1. Cleaning ....................... 17 1-2. Checks ........................17 1-3. Preverting Paper Jams and Removing Jammed Paper ........17 Lubrication ..................... 19 2-1. Lubricant ......................19 2-2. Lubricating Method ..................... 19 2-3. Lubricated Areas ....................19 Screw Locking ..................
  • Page 20 Maintenance In order to maintain the optimum performance of this printer and to prevent trouble, maintenance must be carried out according to the following items. 1-1. Cleaning Removal of dirt Wipe off dirt with a soft cloth soaked in alcohol or benzine. Note: Do not use thinner, trichlene or ketone solvents because they may damage plastic parts.
  • Page 21 Removing Jammed Paper Remove jammed paper using the following procedures. • Cut the paper from the paper roll near the paper insertion inlet. • Gently pull out the paper near the discharge outlet, lifting it upward to remove the jammed paper. Note 1: When removing the paper, always pull the paper in the forward direction.
  • Page 22 Lubrication Lubrication is very important to maintain optimum performance and to prevent trouble. 2-1. Lubricant The type of lubricant greatly affects the performance and durability of the printer, especially in a low temperature environment. We recommend use of the grease and lubrication oils listed below for this printer. Type of oil Product name Maker...
  • Page 23 Fig. 3-2 Lubricated Areas – 20 –...
  • Page 24 Fig. 3-3 Screw Locking – 21 –...
  • Page 25 CHAPTER 4 PARTS LIST HOW TO USE PARTS LIST DRWG. NO. This column shows the drawing number of the illustration. REVISED EDITION MARK This column shows a revision number. Part that have been added in the revised edition are indicated with “#”. Part that have been abolished in the revised edition are indicated with “*”.

  • Page 26: Printer Assembly

    Printer Assembly 1-1. Disassembly Drawing A. Tear Bar Type – 23 –...
  • Page 27 B. Auto Cutter Type – 24 –...

  • Page 28: Parts List

    1-2. Parts List Printer Assembly DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK 38050000 MP512MC-24 OLD TYPE:TEAR BAR 38050001 MP512MC-24 NEW TYPE:TEAR BAR 38053000 MP542MC-24 OLD TYPE:AUTO CUTTER 38053001 MP542MC-24 NEW TYPE:AUTO CUTTER 37320000 CASE UNIT EXCEPT FOR CH,WHITE 37320020 CASE UNIT SP5GRY EXCEPT FOR CH,GRAY...

  • Page 29: Printer Mechanism

    Printer Mechanism 2-1. Disassembly Drawing A. Tear Bar Type 25 19 – 26 –...
  • Page 30 B. Auto Cutter Type – 27 –...

  • Page 31: Parts List

    2-2. Parts List Printer Mechanism (Tear Bar Type) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK 89130220 PRINT HEAD DP8901R 37012020 PAPER FEED MOTOR UNIT 37012030 CARRIAGE MOTOR UNIT TERMINAL BOARD ASSY 37017800 BLK MARK DETECTOR BD ASSY MP5 OLD TYPE *1 37012410 BLACK MARK DETECTOR B UNIT MP5 NEW TYPE *1...
  • Page 32 Printer Mechanism (Auto Cutter Type) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK 89130220 PRINT HEAD DP8901R 37012020 PAPER FEED MOTOR UNIT 37012030 CARRIAGE MOTOR UNIT TERMINAL BOARD ASSY 37017800 BLK MARK DETECTOR BD ASSY MP5 OLD TYPE *1 37012410 BLACK MARK DETECTOR B UNIT MP5 NEW TYPE *1 37011100 CARRIAGE UNIT...

  • Page 33: Block Diagram

    Block Diagram Main Logic Board CN41 RS232C I/F Host Computer PAPALLEL I/F Printer Mechanism CN21 Head Driver Head CN21 CR Driver CR Motor FLASH ROM 8Mbit CN21 PF Motor Driver PF Motor CN11 Cutter Motor Driver Cutter Motor (Auto Cutter Type) CN21 Sensor CN12...

  • Page 34: Main Logic Board (Parallel Interface)

    Main Logic Board (Parallel Interface) 4-1. Circuit Diagram line line Release Voltage Operating temperature Delay time Operating temperature Built-in RAM Operating temperature & Protection Timer Protection Timer Protection Timer Protection Timer & Protection Timer & Protection Timer Main Logic Board(Parallel Interface) 1/ 4 –...
  • Page 35 Operating Voltage Access Time Operating Temperature Flash Output Voltage Operating Temperature Main Logic Board(Parallel Interface) 2/ 4 – 32 –...
  • Page 36 Main Logic Board(Parallel Interface) 3/ 4 – 33 –...
  • Page 37 Main Logic Board(Parallel Interface) 4/ 4 – 34 –...

  • Page 38: Parts List

    4-2. Parts List Main Logic Board (Parallel Interface) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK BC01 CERA.CAPA.CHIP1608 0.022UF 50V BC02A CERA.CAPA.CHIP1608 0.022UF 50V BC02B CERA.CAPA.CHIP1608 0.022UF 50V BC02C CERA.CAPA.CHIP1608 0.022UF 50V BC02D CERA.CAPA.CHIP1608 0.022UF 50V BC03A CERA.CAPA.CHIP1608 0.022UF 50V BC03B CERA.CAPA.CHIP1608 0.022UF 50V BC03C...

  • Page 39: Board

    Main Logic Board (Parallel Interface) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK IC12 IC-MOTOR TA8428K IC13 IC-REG UPC7824 IC14 IC-REG L88M33T*TL IC21-22 IC-MOTOR MTD2003F-4072 IC23 IC-LIN KIA358F*EL IC24 IC-LIN KIA393F*EL IC41 TTL IC 74LS05FP*EL J02A CHIP RESISTOR 0 OHM 1/16W J03B CHIP RESISTOR 0 OHM 1/16W...
  • Page 40 Main Logic Board (Parallel Interface) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK R135 CHIP RESISTOR 4.7 K-OHM 1/16W R136 CHIP RESISTOR 10 K-OHM 1/10W R137 CHIP RESISTOR 33 K-OHM 1/16W R141 CHIP RESISTOR 10 K-OHM 1/16W R142 CHIP RESISTOR 4.7 K-OHM 1/16W R171-172 CHIP RESISTOR 220 OHM 1/10W R175...
  • Page 41 Main Logic Board (Parallel Interface) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK TR01 CHIP TRANSISTOR 2SA1362GR*85L TR02 CHIP TRANSISTOR KTC3875S-G*AL TR03 CHIP TRANSISTOR 2SA1362GR*85L TR04 CHIP TRANSISTOR KTC3875S-G*AL TR11 CHIP TRANSISTOR 2SA1362GR*85L TR12 DIGITAL TRANSISTOR KRC107S TR13 DIGITAL TRANSISTOR KRA107S TR14 CHIP TRANSISTOR KTC3875S-G*AL TR15-16...

  • Page 42: Main Logic Board (Serial Interface)

    Main Logic Board (Serial Interface) 5-1. Circuit Diagram line line Release Voltage Operating temperature Delay time Operating temperature Built-in RAM Operating temperature & Protection Timer Protection Timer Protection Timer Protection Timer & Protection Timer & Protection Timer Main Logic Board(Serial Interface) 1/ 4 –...
  • Page 43 Operating Voltage Access Time Operating temperature Flash Output Voltage Operating temperature Main Logic Board(Serial Interface) 2/ 4 – 40 –...
  • Page 44 Main Logic Board(Serial Interface) 3/ 4 – 41 –...
  • Page 45 Main Logic Board(Serial Interface) 4/ 4 – 42 –...

  • Page 46: Parts List

    5-2. Parts List Main Logic Board (Serial Interface) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK BC01 CERA.CAPA.CHIP1608 0.022UF 50V BC02A CERA.CAPA.CHIP1608 0.022UF 50V BC02B CERA.CAPA.CHIP1608 0.022UF 50V BC02C CERA.CAPA.CHIP1608 0.022UF 50V BC02D CERA.CAPA.CHIP1608 0.022UF 50V BC03A CERA.CAPA.CHIP1608 0.022UF 50V BC03B CERA.CAPA.CHIP1608 0.022UF 50V BC03C...
  • Page 47 Main Logic Board (Serial Interface) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK IC14 IC-REG L88M33T*TL IC21-22 IC-MOTOR MTD2003F-4072 IC23 IC-LIN KIA358F*EL IC24 IC-LIN KIA393F*EL IC41 IC-I/F ST232CDR* J02A CHIP RESISTOR 0 OHM 1/16W J03B CHIP RESISTOR 0 OHM 1/16W J04A CHIP RESISTOR 0 OHM 1/16W...
  • Page 48 Main Logic Board (Serial Interface) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK R137 CHIP RESISTOR 33 K-OHM 1/16W R141 CHIP RESISTOR 10 K-OHM 1/16W R142 CHIP RESISTOR 4.7 K-OHM 1/16W R171-172 CHIP RESISTOR 220 OHM 1/10W R175 CHIP RESISTOR 4.7 K-OHM 1/16W R176-179 CHIP RESISTOR 10 K-OHM 1/16W R201-209...
  • Page 49 Main Logic Board (Serial Interface) DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK ZD01 ZENER DIODE CHIP HZU20B2TRF ZD02 ZENER DIODE CHIP BZT52-C3V9S* ZD11 ZENER DIODE CHIP BZT52-C6V2S* ZD12 ZENER DIODE CHIP BZT52-C3V9S* ZD21-22 ZENER DIODE CHIP BZT52-C6V2S* – 46 –...

  • Page 50: Power Supply Unit

    Power Supply Unit 6-1. Circuit Diagram – 47 –...

  • Page 51: Parts List

    6-2. Parts List Power Supply Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK VARISTOR ERZVEAV511* FILM CAPA. 0.22UF 250V FILM CAPA. 0.1UF 250V C3-4 CERA. CAPA. 2200PF 250V CHEM. CAPA. 120UF 400V CHEM. CAPA. 10UF FILM CAPA. 0.1UF FILM CAPA.
  • Page 52 Power Supply Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK WIRE 22UL1015BRN100 RADIATION PLATE TR CLIP HEAT-SHRINK TUBE F2-5.0 S/N SEAL KEI-802 – 49 –...
  • Page 53 ELECTRONIC PRODUCTS DIVISION OVERSEAS SUBSIDIARY COMPANIES STAR MICRONICS U.K. LTD. STAR MICRONICS CO., LTD. STAR MICRONICS AMERICA, INC. Star House, Peregrine Business 536 Nanatsushinya, 1150 King Georges Post Road, Edison, Park, Gomm Road, High Wycombe, Shimizu, Shizuoka, 424-0066 Japan NJ 08837-3729 U.S.A.

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