Star SP700 Series Technical Manual
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Star SP700 Series Technical Manual

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DOT MATRIX PRINTER
SP700 Series
[ 9 Wire Print Head ]

Technical Manual

< FIRST EDITION >

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  • Page 1: Technical Manual

    DOT MATRIX PRINTER SP700 Series [ 9 Wire Print Head ] Technical Manual < FIRST EDITION >...
  • Page 2 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. •...
  • Page 3 INTRODUCTION This manual describes the thermal printer SP700 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: Adjusting The Print Head And Platen Gap

    1. Adjusting the Print Head and Platen Gap 1-1. Measuring the Print Head and Platen Gap See sections 2 and 3 for details on how to remove the [ 3 ] tear bar. [ 1 ] [ 2 ] Insert a thickness gauge [3] between the print head [1] and platen [2] to measure the gap.

  • Page 6: Adjusting The Print Head And Platen

    1-2. Adjusting the Print Head and Platen To adjust the left side gap, remove the adjustment bushing [4] screw in the left side frame and move the adjustment bushing [4] up and down. [ 4 ] Fig. 1-2 Adjusting the Gap (Left) To adjust the right side gap, remove the adjustment bushing [5] screw in the right side frame and move the adjustment bushing [5] up and down.

  • Page 7: Adjusting The Belt Tension

    2. Adjusting the Belt Tension See sections 2 and 3 for details on how to remove the [ 3 ] [ 1 ] tear bar. [ 6 ] [ 2 ] See sections 2 and 4 for details on how to remove the ribbon base.

  • Page 8: Adjusting The Paper Feed Path

    3. Adjusting the Paper Feed Path Insert a thickness gauge [3] between the tear bar base [1] [ 3 ] and cutter guide [2] to measure the gap. [ 2 ] [ 1 ] Fig. 3-1 Measuring the Gap The standard value for the gap is 0.3 to 0.5 mm. If the [ 4 ] [ 4 ] [ 1 ]...

  • Page 9: Adjusting The Printing Dot Mis-Positioning

    4. Adjusting the Printing Dot Mis-positioning To adjust the amount of discrepancy of the dots in uni-directional and reciprocal directions, in 1/8 dot increments. The procedures are explained below. Set paper in the printer. Turn on the power while pressing the FEED switch. After the buzzer beeps twice, release the FEED switch.
  • Page 10 To adjust, select the adjustment pattern with the smallest amount of discrepancy in the dots in coming and going directions by looking at the print results. To do so, count from the top line to the line of the desired pattern, and press the FEED switch for that number of times.

  • Page 11: Adjusting The Black Mark Sensor

    5. Adjusting the Black Mark Sensor Check that the printer power is off. Unplug the power cord from the outlet. Turn the printer over as shown in the drawing (vertical layout) and remove the screw to remove the DIP switch cover on the bottom of the printer.
  • Page 12 CHAPTER 2 PARTS REPLACEMENT This chapter explains disassembly and reassembly of the printer. Note the following precautions during disassembly and reassembly. 1. Disconnect the printer power cord plug from the wall outlet before servicing it. 2. Assembly is the reverse of disassembly unless otherwise specified. 3.

  • Page 13: Rear Cover Unit

    1. Rear Cover Unit Turn the power switch 1 off and unplug the power plug from the AC outlet. Pull the open lever 2 toward yourself to open the rear cover. Removal • 4 screws 3 • Rear cover unit 4 2.
  • Page 14 (3) With the same procedure on the other side of the front cover 1 , remove by widening the A portion. • Open lever 3 • Case unit 4 At this time, widen the case that is near the power switch and avoid touching the switch.

  • Page 15: Tear Bar

    3. Tear Bar Turn the power off and unplug the power plug from the AC outlet. With the procedures of 2, remove the case unit. Removal • 2 screws 1 • Tear bar 2 4. Ribbon Base Turn the power off and unplug the power plug from the AC outlet.

  • Page 16: Printer Mechanism

    5. Printer Mechanism Turn the power off and unplug the power plug from the AC outlet. With the procedures of 2, remove the case unit. Removal • 5 screws 1 • Connectors 2 • FL cable 3 • Printer mechanism 4 6.

  • Page 17: Platen Arm Unit

    7. Platen Arm Unit Turn the power off and unplug the power plug from the AC outlet. With the procedures of 5, remove the printer mechanism. Removal • Four stop rings 1 • Spring 2 • Platen arm shaft 3 •...

  • Page 18: Pf Moter

    9. PF Moter Turn the power off and unplug the power plug from the AC outlet. With the procedures of 5, remove the printer mechanism. Removal • 3 screws 1 • Paper guide A 2 • 5 screws 3 • Fastener 4 •...

  • Page 19: Main Logic Board

    11. Main Logic Board Turn the power off and unplug the power plug from the AC outlet. With the procedures of 9, remove the power unit. Removal • 4 screws 1 • Main logic board 2 - 1 -...

  • Page 20: Maintenance And Lubrication

    CHAPTER 3 MAINTENANCE AND LUBRICATION 1. Maintenance ..........18 1-1.

  • Page 21: Maintenance

    1. Maintenance 1-1. Cleaning (1) 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. Also during cleaning, be careful not to moisten or damage electronic parts, wiring, or mechanical parts. (2) Removal of dust, pile Vacuum cleaning (with an electric cleaner) is preferred.

  • Page 22: Lubrication

    2. 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: Screw Locking

    3. Screw Locking Screw sealant is applied to parts so that the screws in the printer will not come loose from vibration during shipment. When carrying out replacement of parts, apply sealant to the following screws, in accordance with Fig. 3-1. Locking Point Locking Agent Joining pointing of Timing belt and Carriage...
  • Page 24 Fig.3-1. Lubrication and screw sealing Position - 1 -...
  • Page 25 Fig.3-2. Lubricated Area ( In Cutter unit ) -  -...
  • Page 26 CHAPTER 4 PARTS LIST How To USE PARTS LIST (1) DRWG. NO. This column shows the drawing number of the illustration. (2) 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 “*”. #1 : First edition → Second edition *1 : First edition → Second editon (3) PARTS NO. Parts numbers must be notified when ordering replacement parts. Parts described as “NPN” have no parts number and are not in stock, unavailable. (4) PARTS NAME Parts names must be notified when ordering replacement parts. (5) Q’TY This column shows the number of the part used as indicated in the figure. (6) REMARKS Where differences in specifications exist depending on location/destination. (7) RANK Parts marked “S” in the rank column can be ordered. Other parts, as a rule, cannot be supplied even if ordered. 1. Printer Assembly ....24 7.

  • Page 27: Printer Assembly

    1. Printer Assembly 1-1.Disassembly Drawing A. Tear Bar Model ( SP712 ) 1- 2 1- 4 1- 3 - 24 -...
  • Page 28 B. Auto Cutter Model ( SP742 ) 1- 4 1- 3 1- 2 - 25 -...

  • Page 29: Parts List

    1-2. Parts List Printer Assembly DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK 39607610 INTERFACE BOARD IFBD-HU06 OPTION:USB 39607601 INTERFACE BOARD IFBD-HE06 OPTION:ETHERNET 39607411 INTERFACE BOARD IFBD-HC04 OPTION:PARALLEL 39607400 INTERFACE BOARD IFBD-HD04 OPTION:RS-232C 25PIN FERRITE CORE K5BRC24X14X11 PARALLEL / ETHERNET 04991204 FASTENER T18S PARALLEL / ETHERNET...
  • Page 30 Printer Assembly DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK 39590610 VERTICAL STAND VS-S700 OPTION 39590210 WALL BRACKET WB-S700 OPTION 30980620 SUB-CASSETTE RIBBON RC700B OPTION: BLACK 30980610 SUB-CASSETTE RIBBON RC700BR OPTION: RED/BLACK 39590070 NEAR-END DETECTOR SP700 OPTION 39590080 BLACK MARK DETECTOR B SP700 OPTION 39590090...

  • Page 31: Printer Mechanism

    2. Printer Mechanism 2-1. Disassembly Drawing A. Tear Bar Model ( SP712 ) 49 20 - 28 -...
  • Page 32 B. Auto Cutter Model ( SP742 ) 49 20 - 29 -...

  • Page 33: Parts List

    2-2. Parts List Printer Mechanism DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK 89138020 PRINT HEAD DP1401R 89138910 PRINT HEAD UNIT DP140S HEAD CABLE UNIT 140R CAUTION SEAL 140S 37347210 REAR OPEN SWITCH UNIT SP7 PLATEN ARM UNIT SP712 PLATEN ARM UNIT SP74...

  • Page 34: Sub-Assembly

    3. Sub-Assembly 3-1. Platen Arm Unit A. Tear Bar Model ( SP712 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK 37346600 PAPER FEED ROLLER ASSY 37344700 PLATEN ARM ASSY SP7 37343500 PLATEN ASSY PAPER GUIDE C LOCK SHAFT SLIDE ROLLER 30211050 PF ROLLER BEARING...
  • Page 35 B. Auto Cutter Model ( SP742 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK 37346600 PAPER FEED ROLLER ASSY 37344700 PLATEN ARM ASSY SP7 37343500 PLATEN ASSY 37342100 CUTTER UNIT PAPER GUIDE C CUTTER BASE LOCK SHAFT SLIDE ROLLER 30211050 PF ROLLER BEARING...

  • Page 36: Block Diagram

    4. Block Diagram InterfaceBoard RS232C I/F PARALLEL I/F Host Computer USB I/F LAN I/F Wifi I/F ETC. Main Logic Board Printer Mechanism Printer Head Head Driver PF Motor Driver PF Motor CR Motor Driver CR Motor Cutter Motor Driver ( Cutter Motor ) Paper Winder Motor FLASH ROM Driver...

  • Page 37: Main Logic Board ( Sp712 )

    5. Main Logic Board ( SP712 ) 5-1. Circuit Diagram AB[20..0] DB[15..0] IC01 RA01 N4J101 R5S61650 RA08 N4J221 RA02 N4J101 RA09 N4J221 RA10 N4J221 RA03 N4J101 AB10 DB10 AB11 DB11 RA11 N4J221 RA04 N4J101 AB12 DB12 AB13 DB13 AB14 DB14 AB15 DB15 RA05...
  • Page 38 Main Logic Board ( SP712 ) 2/5 - 35 -...
  • Page 39 Main Logic Board ( SP712 ) 3/5 - 36 -...
  • Page 40 Main Logic Board ( SP712 ) 4/5 - 37 -...
  • Page 41 Main Logic Board ( SP712 ) 5/5 - 38 -...

  • Page 42: Component Layout

    5-2. Component Layout - 39 -...

  • Page 43: Parts List

    5-3. Parts List Main Logic Board ( SP712 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK BC01 CERA.CAPA.CHIP1608 0.022UF 50V BC02-03 CERA.CAPA.CHIP1608 0.01UF 50V BC04-06 CERA.CAPA.CHIP1608 0.1UF 25V BC07-11 CERA.CAPA.CHIP1608 1000PF 50V BC21 CERA.CAPA.CHIP1608 0.1UF 25V BC22-27 CERA.CAPA.CHIP1608 0.01UF 50V BC28 CERA.CAPA.CHIP1608 0.022UF 50V...
  • Page 44 Main Logic Board ( SP712 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK IC23 IC-REG UPC7824 IC32 IC-MOTOR MTD2002G* IC33 IC-MOTOR MTD2003G-3072* CHIP RESISTOR 0 OHM 1/16W CHIP RESISTOR 0 OHM 1/16W JUMPER WIRE STP122 CHIP RESISTOR 0 OHM 1/10W LED1 LED CHIP LT1E40A* LED2...
  • Page 45 Main Logic Board ( SP712 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK R205 CHIP RESISTOR 0 OHM 1/16W R207 CHIP RESISTOR 10 K-OHM 1/10W R208-209 CHIP RESISTOR 330 OHM 1/10W R211-213 CHIP RESISTOR 10 K-OHM 1/16W R214-215 CHIP RESISTOR 2.2 K-OHM 1/16W R216-218...
  • Page 46 Main Logic Board ( SP712 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK TR21 DIGITAL TRANSISTOR KRA107S TR22-23 CHIP TRANSISTOR KTC3875S-G*AL TRA21 TRANSISTOR ARRAY UPA1428AH TRA41-42 TRANSISTOR ARRAY UPA1428AH VR1-2 RP CHIP RESISTOR EVM3S-47K XTAL CERA. OSC CHIP CSTCE16M0V53* ZD01 ZENER DIODE CHIP HZU20B2TRF ZD02...

  • Page 47: Main Logic Board ( Sp742 )

    6. Main Logic Board ( SP742 ) 6-1. Circuit Diagram AB[20..0] DB[15..0] IC01 R5S61650 RA08 N4J221 RA01 N4J101 RA02 N4J101 RA09 N4J221 RA03 N4J101 RA10 N4J221 AB10 DB10 AB11 DB11 RA04 N4J101 RA11 N4J221 AB12 DB12 AB13 DB13 AB14 DB14 AB15 DB15 RA05...
  • Page 48 Main Logic Board ( SP742 ) 2/5 - 45 -...
  • Page 49 Main Logic Board ( SP742 ) 3/5 - 46 -...
  • Page 50 Main Logic Board ( SP742 ) 4/5 - 47 -...
  • Page 51 Main Logic Board ( SP742 ) 5/5 - 48 -...

  • Page 52: Component Layout

    6-2. Component Layout - 49 -...

  • Page 53: Parts List

    6-3. Parts List Main Logic Board ( SP742 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK BC01 CERA.CAPA.CHIP1608 0.022UF 50V BC02-03 CERA.CAPA.CHIP1608 0.01UF 50V BC04-06 CERA.CAPA.CHIP1608 0.1UF 25V BC07-11 CERA.CAPA.CHIP1608 1000PF 50V BC21 CERA.CAPA.CHIP1608 0.1UF 25V BC22-27 CERA.CAPA.CHIP1608 0.01UF 50V BC28 CERA.CAPA.CHIP1608 0.022UF 50V...
  • Page 54 Main Logic Board ( SP742 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK IC11 IC-RESET S-80130AN* IC12 GATE ARRAY UPD65883-SP18W1 IC13 CMOS SN74AHCT04PWR*EL IC21 FLASH MEMORY JS28F160C3BD70* S7 *.* :EXCEPT HK FLASH MEMORY JS28F160C3BD70* S7 T1 *.* :FOR HK IC22 IC-REG L88M33T*TL IC23...
  • Page 55 Main Logic Board ( SP742 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK R125 CHIP RESISTOR 100 K-OHM 1/16W R126-134 CHIP RESISTOR 10 K-OHM 1/16W R135-136 CHIP RESISTOR 1 K-OHM 1/16W R137-138 CHIP RESISTOR 1 K-OHM 1/16W R139-142 CHIP RES1608 220 OHM 1/16W 5% R143-147...
  • Page 56 Main Logic Board ( SP742 ) DRWG.NO. REV. PARTS NO. PARTS NAME Q' TY REMARKS RANK R418 CHIP RESISTOR 0 OHM 1/16W R419 CHIP RESISTOR 0 OHM 1/10W R420 CHIP RESISTOR 0 OHM 1/10W R421 CHIP RESISTOR 0 OHM 1/16W R422-423 CHIP RESISTOR 0 OHM 1/10W RA01-05...

  • Page 57: Serial Interface Board ( 25 Pin )

    7. Serial Interface Board ( 25 pin ) 7-1. Circuit Diagram - 54 -...

  • Page 58: Parts List

    7-2. Parts List Serial Interface Board ( 25pin ) DRWG. NO. REV. PARTS NO. PATRS NAME Q'TY REMARKS RANK CHEM. CAPA. 1UF 50V CERA.CAPA.CHIP1608 0.022UF 50V C3-6 CHEM. CAPA. 1UF 50V C7-8 CERA.CAPA.CHIP1608 0.022UF 50V CERA.CAPA.CHIP1608 0.1UF 25V CONNECTOR PHEC40P-R111LF CONNECTOR DBLD-J25SAF-21L9-1 D1-2 DIODE CHIP BAT54S*...

  • Page 59: Parallel Interface Board

    8. Parallel Interface Board 8-1. Circuit Diagram - 56 -...

  • Page 60: Parts List

    8-2. Parts List Parallel Interface Board DRWG. NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK BC1-3 CERA.CAPA.CHIP1608 0.022UF 50V NOT MOUNTED CERA.CAPA.CHIP1608 1000PF 50V C3-4 NOT MOUNTED CHEM. CAPA. 1UF 50V CONNECTOR PHEC40P-R111LF CONNECTOR 57RE-40360-830BD29A 08211042 TTL IC 74LS374NSR*EL TTL IC 74ALS32FP*EL 08210126 TTL IC 74LS05FP*EL...

  • Page 61: Usb Interface Board

    9. USB Interface Board 9-1. Circuit Diagram - 58 -...

  • Page 62: Component Layout

    9-2. Component Layout - 59 -...

  • Page 63: Parts List

    9-3. Parts List USB Interface Board DRWG.NO REV. PARTS NO PARTS NAME Q'TY REMARKS RANK CERA.CAPA.CHIP1608 0.022UF 50V BC2A CERA.CAPA.CHIP1608 0.022UF 50V BC2B CERA.CAPA.CHIP1608 0.022UF 50V BC2C CERA.CAPA.CHIP1608 0.022UF 50V BC4-5 CERA.CAPA.CHIP1608 0.022UF 50V CERA.CAPA.CHIP1608 0.22UF 10V CERA.CAPA.CHIP1608 0.022UF 50V CHEM.

  • Page 64: Ethernet Interface Board

    10. Ethernet Interface Board 10-1. Circuit Diagram The part marked with two asterisks (**) is not mounted. Ethernet Interface Board (1/5) - 61 -...
  • Page 65 The part marked with two asterisks (**) is not mounted. Ethernet Interface Board (2/5) - 62 -...
  • Page 66 The part marked with two asterisks (**) is not mounted. Ethernet Interface Board (3/5) - 63 -...
  • Page 67 The part marked with two asterisks (**) is not mounted. Ethernet Interface Board (4/5) - 64 -...
  • Page 68 The part marked with two asterisks (**) is not mounted. Ethernet Interface Board (5/5) - 65 -...

  • Page 69: Component Layout

    10-2. Component Layout - 66 -...

  • Page 70: Parts List

    10-3. Parts List Ethernet Interface Board DRWG. NO. PARTS NO PARTS NAME Q'TY REMARKS RANK CERA.CAPA.CHIP1608 2.2UF 6.3V CHEM.CAPA.CHIP 100UF 6.3V CHEM.CAPA.CHIP 22UF 6.3V CERA.CAPA.CHIP1608 470PF 50V CERA.CAPA.CHIP1608 0.1UF 25V CERA.CAPA.CHIP1608 1000PF 50V CERA.CAPA.CHIP1608 0.022UF 50V C8-17 CERA.CAPA.CHIP1608 0.1UF 25V CERA.CAPA.CHIP1608 470PF 50V C19-20 CERA.CAPA.CHIP 10PF 25V...
  • Page 71 Ethernet Interface Board DRWG. NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK CHIP RES1608 33 OHM 1/16W 5% CHIP RESISTOR 10 K-OHM 1/16W CHIP RES1608 33 OHM 1/16W 5% CHIP RESISTORE 100 K-OHM 1/16W R55-57 CHIP RESISTORE 820 OHM 1/16W CHIP RESISTOR 3.3 K-OHM 1/16W CHIP RESISTOR 10 K-OHM 1/16W CHIP RESISTOR 470 OHM 1/16W...
  • Page 72 Ethernet Interface Board DRWG. NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK CPU NS7520B-1-C36 IC-REG L88M33T*TL IC-REG S-1165B15* IC-RESET S-80130CN* FLASH MEMORY 29AL016D90TFI010 SDRAM MT48LC4M16A2P CPLD EPM3128ATC100 NOT USED PHY KSZ8721BL CMOS 74ALVC2G04USE* CMOS 74ALVC1G08* PUSH SWITCH SKHHLP CONNECTOR TM11R-5M2-88-LP CONNECTOR 52975-1883 NOT USED CONNECTOR PHEC40P-R111LF...
  • Page 73 ELECTRONIC PRODUCTS DIVISION OVERSEAS SUBSIDIARY COMPANIES STAR MICRONICS EUROPE LTD. STAR MICRONICS CO., LTD. STAR MICRONICS AMERICA, INC. 536 Nanatsushinya Shimizu-ku 1150 King Georges Post Road, Edison, Star House, Peregrine Business Shizuoka, 424-0066 Japan NJ 08837-3729 U.S.A. Park, Gomm Road, High Wycombe, Bucks, HP13 7DL, U.K.

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