DOT MATRIX PRINTER SP320S SERIES TECHNICAL MANUAL [SECOND EDITION]
CONTENTS Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 General Specifications Theory of Operation Adjustments Parts Replacement Maintenance and Lubrication Parts List • First edition: March 1993 • Second edition: March 1997 NOTICE • All rights reserved. Reproduction of any part of this manual in any form whatsoever, without STAR’s express permission is forbidden. • The contents of this manual are subject to change without notice.
GENERAL DESCRIPTION CHAPTER 1 GENERAL DESCRIPTION 1.1 General description ............................................................................................ 1-1 1.2 Model name notation ......................................................................................... 1-1 1.3 Instructions apply models .................................................................................
GENERAL DESCRIPTION 1.1 General description This manual describes the SP320S series dot matrix printers listed in section 1.3. The manual includes sections on principles of operation, adjustments, part replacement, maintenance and lubrication as well as a list of parts. This manual has been prepared for use by a maintenance staff carrying out regular inspections or repairs when abnormalities occur. This manual has been prepared for maintenance staff operating in the field and not for ordinary users. 1.
GENERAL DESCRIPTION 1.
THEORY OF OPERATION 2.4.2 Print Head Carriage Mechanism This print head carriage mechanism consists mainly of the carriage, carriage motor, gear train, home position detector, and timing detectors. When the carriage motor rotates, the drive shaft (cylindrical cam) is rotated by the reduction gear. The print head supported by the carriage moves right and left.
THEORY OF OPERATION 2.4.4 Ink Ribbon Feed Mechanism The ink ribbon feed mechanism comprises of the ribbon cartridge, the carriage motor, and the gear train. The gear train transmits the rotation of the carriage motor to the bevel gear. the ribbon is contained in the ribbon cartridge and tied into an endless loop. When the bevel gear turns the ribbon feed roller, the ink ribbon sandwiched between the ribbon feed roller and the ribbon pressure roller is wound up.
ADJUSTMENT 3.3 Adjusting the Print Speed The printing speed is critical to ensure maximum reliability of the printer. If the printing is too fast, the print head cannot keep up and the wires get caught on the ribbon. 1. Remove the printer mechanism according to the procedure described in Section 4.2. 2. Leave the ribbon cartridge installed. 3. To disable the cover open detector, connect Pins 1 and 2 of connector CN4 1 together (for example by putting a clip between them). 4.
PARTS REPLACEMENT 4.9 Terminal Board Unit 1. 2. Remove • Printer mechanism according to the procedure described in Section 4.2. • The ten soldered lead wires 1 with the soldering iron. • Two screws 2 • Terminal board unit 3 Adjust • Column displacement (Refer to Section 3.4.) 4.10 Carriage Motor Unit 1. 2. 4-5 Remove • Printer mechanism according to the procedure described in Section 4.2. • The two soldered lead wires 1 with the soldering iron.
PARTS REPLACEMENT 4.13 Gears 1. 2. 3. 4-7 Remove • Upper case unit according to the procedure described in Section 4.1. • Stop ring SE4 1 • Gear 2 • Gear 3 • Gear 4 Assembly (Ver.1) Move the carriage to the left end. Align the gear wheels so that the cut-out section of the drive shaft and one end of the cut-out section of the timing pulse plate are facing upward as shown in the figure. Secure the gears with the stop rings. Adjust • Column displacement (Refer to Section 3.4.
MAINTENANCE AND LUBRICATION Fig. 5-1.
PARTS LIST CHAPTER 6 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 indicated when ordering replacement parts.
PARTS LIST 6.1 Printer Assembly 6.1.1 Assembly Drawing A.
PARTS LIST B.
PARTS LIST 6.1.2 Parts List DRWG.NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 17 REV. PARTS NO.
PARTS LIST Printer Assembly DRWG.NO. 40 41 42 - REV. #1 #1 #1 #1 #1 PARTS NO. 83912240 83912251 01914036 04020016 09990723 04991204 PARTS NAME GUIDE CAP R SP321S GUIDE CAP L SP321S SCREW TR 4-5 WS STOP RING SE4.
PARTS LIST 6.2 Printer Mechanism 6.2.
PARTS LIST 6.2.2 Parts List DRWG.NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 19 20 21 22 23 24 25 26 27 28 29 30 31 33 34 35 36 37 38 39 40 41 42 43 45 46 REV. PARTS NO.
PARTS LIST Printer Mechanism DRWG.NO. 47 48 49 50 51 52 53 54 55 56 57 61 63 64 65 - REV. PARTS NO. 00820404 01902612 00630404 01903048 02020301 04020010 04020015 04020016 04020017 04020004 83101050 04033001 82020422 00930403 *1 01903077 #1 01903069 04991225 PARTS NAME SCREW TR 2-4 SCREW TAT 2.6-16 PT SCREW TR 3-4 SCREW TR 3-5 WF HEXAGON NUT NH3-2 STOP RING SE2.0 STOP RING SE3.0 STOP RING SE4.0 STOP RING SE5.0 STOP RING SE2.
PARTS LIST 6.3 Sub-assembly 6.3.1 Upper Case Unit DRWG.NO. 13-1 13-2 13-3 13-4 13-5 13-6 13-7 13-8 REV. PARTS NO.
PARTS LIST 6.3.2 Lower Case Unit DRWG.NO. 2-1 2-2 2-3 REV. PARTS NO.
PARTS LIST 6.4 Wiring Schematic of Printer 6.4.
PARTS LIST 6.4.
PARTS LIST 6.5 Main Logic Board 6.5.1 Serial Interface 6.5.1.
PARTS LIST 6-13
PARTS LIST 6-14
PARTS LIST 6-15
PARTS LIST 6.5.1.
PARTS LIST 6.5.1.3 Parts List DRWG.NO. IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC8 IC9 IC10 REG1 TA1 TA2 TR1 TR2 TR3 TR4-6 TR7 TR8 TR9 TR10 TR11-12 TR13 TR14-22 D1-3 D4-6 D7 RA1 RA2 RA3 RA4-5 RA6 RA7 RA8 RA9 RA10 R1 R2 R3-6 R7-8 R9 R10-11 R12-13 Main Logic Board (Serial Interface) REV. PARTS NO.
PARTS LIST Main Logic Board (Serial Interface) DRWG.NO. R14 R15 R16 R17 R18-19 R20-21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R31-32 R33 R34-39 R40-41 R42 R43 R44 R45 R46 R47-48 R49 R50 R51-52 R53 R54 R55-56 R57 R58-59 R60 R61 R62 R63-64 R65-73 R74-75 R76-77 CA1-2 CA3 C1 C2 C3-6 C7 C8 C9-10 C11-14 C15-16 C17 REV. PARTS NO. PARTS NAME 06054725 RD RESISTOR 4.
PARTS LIST Main Logic Board (Serial Interface) DRWG.NO. C18 C19 C20 C21 C22-23 C24-25 C26 C27 C28 C29 C30-33 C34 C35 C36 C37 BC1-6 BC7 BC8-11 DSW1-3 DSW4 BZ1 XTAL1 L1-4 VR1 TP1-2 JSW1-4 JSW5-6 CN1 CN2 CN3 CN4-6 CN7 CN8 CN9 CN10 CN11 JC1-2 - REV. PARTS NO. 05152234 05152212 05152234 05154714 CERA. CERA. CERA. CERA. PARTS NAME CAPA. 0.022UF 50V CAPA. 220PF 50V CAPA. 0.022UF 50V CAPA. 470PF 50V Q’TY 1 1 1 1 REMARKS NOT MOUNTED 05151034 05152234 05131044 05252232 CERA. CAPA. 0.01UF CERA. CAPA. 0.
PARTS LIST 6.5.2 For Parallel Interface 6.5.2.
PARTS LIST 6-21
PARTS LIST 6-22
PARTS LIST 6-23
PARTS LIST 6.5.2.
PARTS LIST 6.5.2.3 Parts List DRWG.NO. IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC8 IC9 IC10 REG1 TA1 TA2 TR1 TR2 TR3 TR4-6 TR7 TR8 TR9 TR10 TR11-12 TR13 TR14-22 D1 D2-4 D5 RA1 RA2 RA3 RA4 RA5 RA6 RA7 RA8 RA9 R1-3 R4 R5-6 R7 R8-11 R12 R13 Main Logic Board (Parallel Interface) REV. PARTS NO.
PARTS LIST Main Logic Board (Parallel Interface) DRWG.NO. R14-21 R22 R23-24 R25 R26 R27 R28 R29 R30-31 R32-33 R34 R35-36 R37 R38-42 R43-44 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60-62 R63 R64 R65-68 R69 R70 R71 R72 R73 R74 R75 R76-78 R79 R80-83 R84-92 R93 R94 VR1 CA1-2 CA3 C1-2 REV. PARTS NO. 06054725 06051034 06054725 06054734 RD RD RD RD PARTS NAME RESISTOR 4.7 K-OHM 1/6W RESISTOR 10 K-OHM 1/6W RESISTOR 4.
PARTS LIST Main Logic Board (Parallel Interface) DRWG.NO. C3 C4 C5-8 C9-12 C13 C14-15 C16 C17-18 C19 C20 C21-22 C23 C24 C25 C26 C27 C28-31 C32 C33 C34 C35 C36 C37-38 BC1-7 BC8 BC9-10 DSW1-2 BZ1 TXAL1 TP1-2 CN1 CN2 CN3 CN4-6 CN7 CN8 CN9 CN10 CN11 REV. PARTS NO. PARTS NAME 05131044 CERA. CAPA. 0.1UF 25V Q’TY 1 REMARKS NOT MOUNTED 05151015 CERA. CAPA. 100PF 50V 4 05151033 05154714 CERA. CAPA. 0.01UF CERA. CAPA. 470PF 50V 50V 1 2 05152234 05154714 CERA. CAPA. 0.022UF 50V CERA. CAPA.
PARTS LIST 6.6 Control Panel Board 6.6.1 Circuit Diagram 6.6.2 Component Layout 6.6.3 Parts List DRWG.NO. LED1 LED2 R1-3 SW1-2 SW3 CN1 J1 REV. PARTS NO.
PARTS LIST 6.7 Power Supply Unit (Except for H.K.) 6.7.
PARTS LIST 6.7.
PARTS LIST 6.7.3 Parts List DRWG.NO. IC1 DB1 R1 R2 R3 R4 C1 C2-3 C4 C5 C6-7 C8 C9 L1 L2 L3 F1 F2 CN1 CN2 JP1-2 JP3 JP4 JP5-6 FB1 J1-3 SW1 - REV. PARTS NO.
PARTS LIST 6.8 Power Supply Unit (For H.K.) 6.8.
PARTS LIST 6.8.2 Parts List DRWG.NO. IC1 IC2 D1-4 D5 DB1 R1-2 R3 R4 C1 C2-3 C4 C5 C6 C7 C8 C9 C10 C11 C12 SW L1 L2 F1 F2-3 CN1 CN0 JP1-2 JP3 JP4 J1-2 - REV. PARTS NO.
PARTS LIST 6.9 Terminal Board 6.9.
PARTS LIST 6.9.2 Component List Ver. 1 Ver.
PARTS LIST 6.9.3 Parts List DRWG.NO. IC1 TR1 TR2 R1 R2 R3 R4 R5 R6 R7 R8 VR C1 C2 C3 REV. PARTS NO. 08200128 *1 07227852 #1 07601002 07316371 *1 06242038 #1 06242034 *1 06041228 #1 06041226 06051035 #1 *1 #1 *1 #1 *1 #1 *1 #1 *1 #1 PS1 PS2 #1 CN1 CN2 CN3 CN4 L1 Terminal Board PARTS NAME IC-MOTOR M51971L TRANSISTOR 2SC2785FE TRANSISTOR 2SC3198GR* TRANSISTOR 2SD1637 RN RESISTOR 20 K-OHM 1/4W RN RESISTOR 20 K-OHM 1/4W 1% RD RESISTOR 1.2 K-OHM 1/4W RD RESISTOR 1.
PARTS LIST 6.10 Home Position Detector Board 6.10.1 Circuit Diagram 6.10.2 Component Layout 6.10.3 Parts List DRWG.NO. R1 PS1 - REV. PARTS NO.
PARTS LIST 6.11 RS422 Interface Board (BD320K): option 6.11.1 Circuit Diagram 6.11.2 Component Layout Ver. 1 6.11.3 Parts List DRWG.NO. IC1 RA1-2 R1-4 ZNR1-3 ZNR4 ZNR5-11 ZNR12 C1 CN1 HOLE REV. PARTS NO. PARTS NAME 08200131 IC-I/F MC34051P #1 #1 #1 #1 Q’TY 1 REMARKS NOT MOUNTED NOT MOUNTED NOT MOUNTED 05532234 CAPACITOR 0.022UF 25V 1 05532234 05532234 09100430 09990513 CAPACITOR 0.022UF 25V CAPACITOR 0.022UF 25V CONNECTOR IL-W24S-SD BOARD SPACER DSPLS-10 1 1 1 1 NOT MOUNTED 6-38 RANK :VER.
PARTS LIST 6.12 Current loop Board (BD320L): option 6.12.1 Circuit Diagram 6.12.2 Component Layout 6.12.3 Parts List DRWG.NO. IC1 PC1 TR1 D1 R1 R2 R3 R4 R5 C1 SW1 CN1 - REV. PARTS NO. 08210001 08300032 07227851 *1 08000001 #1 08000096 06051514 06051034 06054725 06054714 06051025 05532234 09000048 09100430 09990513 PARTS NAME TTL IC 74LS00 OPTCOUPLER PS2401-2 TRANSISTOR 2SC2785JHFE DIODE 1S1588 DIODE 1S2076A*A RD RESISTOR 150 OHM 1/6W RD RESISTOR 10 K-OHM 1/6W RD RESISTOR 4.
ELECTRONIC PRODUCTS DIVISION STAR MICRONICS CO., LTD. 536 Nanatsushinya, Shimizu, Shizuoka, 424 Japan Tel : 0543-47-0112 Fax : 0543-48-5271 OVERSEAS SUBSIDIARY COMPANIES STAR MICRONICS AMERICA, INC. 70-D Ethel Road West, Piscataway, NJ 08854 U.S.A Tel : 908-572-9512 Fax : 908-572-5095 STAR MICRONICS DEUTSCHLAND GMBH Westerbachstraße 59, D-60489 Frankfurt, Germany Tel : 069-789990 Fax : 069-781006 STAR MICRONICS U.K. LTD. Star House, Peregrine Business Park, Gomm Road, High Wycombe, Bucks, HP13 7DL, U.K.
