Star Micronics LC-8211 Technical Manual
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Star Micronics LC-8211 Technical Manual

Star Micronics LC-8211 Technical Manual

Star micronics dot matrix printer technical manual
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DOT MATRIX PRINTER
LC-8211
TECHNICAL MANUAL
[THIRD EDITION]

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Summary of Contents for Star Micronics LC-8211

  • Page 1 DOT MATRIX PRINTER LC-8211 TECHNICAL MANUAL [THIRD 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 1996 Star Micronics Co.,Ltd.

  • Page 3: General Specifications

    INTRODUCTION This manual describes the LC-8211 dot matrix printer. 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 5: Table Of Contents

    CHAPTER 1 GENERAL SPECIFICATIONS General Spaecifications ..................3 External Appearance and Composition .............. 5 Control Panel ......................7 3-1. Switch Combination Functions ................3-2. EDS Mode Settings ....................Parallel Interface....................9 4-1. General Specifications ................... 4-2. Connector Signals ....................Serial Interface (optional) ................... 10 5-1.

  • Page 6: General Spaecifications

    GENERAL SPECIFICATIONS – 2 –...
  • Page 7 GENERAL SPECIFICATIONS General Specifications Printing System Serial Impact Dot-Matrix Printing Speed Pitch Draft (cps/dpi) LQ (cps/dpi) Pica (10 cpi) 225/120H 75/360H Elite (12 cpi) 270/120H 90/360H Semi-condensed (15 cpi (S)) 337/120H 112/360H Semi-condensed (15 cpi (I)) 168/240H 112/360H Condensed pica (17 cpi) 191/240H 127/360H Condensed elite (20 cpi)
  • Page 8 GENERAL SPECIFICATIONS Fanfold Paper width: 4.5” to 12” / 114 to 305mm Paper weight (1-ply): 14 to 22 lbs / 52 to 82 g/m / 45 to 70 kg Multi-part: 11 to 14 lbs / 40 to 52 g/m / 34 to 45 kg; pressure sensitive paper Total thickness: 0.014”...

  • Page 9: External Appearance And Composition

    GENERAL SPECIFICATIONS External Appearance and Composition Fig. 1-2 Front view of the Printer Fig. 1-3 Rear view of the Printer – 5 –...
  • Page 10 GENERAL SPECIFICATIONS Fig. 1-4 Front cover removed Fig. 1-5 Diagram of internal layout – 6 –...

  • Page 11: Control Panel

    GENERAL SPECIFICATIONS Control Panel 3-1. Switch Combination Functions – 7 –...

  • Page 12: Eds Mode Settings

    GENERAL SPECIFICATIONS 3-2. EDS Mode Settings Bank Switch Function Emulation *Standard / EPSON Character Table (CT) Standard / EPSON mode *Graphics Italics IBM mode IBM #2 IBM #1 RAM Usage *Input Buffer Download Buffer (Not used) Paper Out Detector *Enabled Disabled (Not used) Graphics Direction...

  • Page 13: Parallel Interface

    GENERAL SPECIFICATIONS Parallel Interface 4-1. General Specifications Item Specifications Interface Centronics-compatible Synchronization System Via externally supplied STROBE pulse I/F Protocol Using ACK and BUSY signals Logic Level Compatible with TTL level Data STROBE (EDS B-6 : ON) STROBE (EDS B-6 : OFF) BUSY t : More than 0.5 s Fig.

  • Page 14: Serial Interface (Optional)

    GENERAL SPECIFICATIONS Serial Interface (optional) When using the serial interface, the optional Serial-Parallel Converter must be connected to the printer. 5-1. General Specifications Item Specifications Interface RS-232C level Synchronization System Asynchronous Baud rate 150 - 19,200 bits per second (BPS) [selectable] 150, 300, 600, 1200, 2400, 4800, 9600, 19200 BPS Word length Start bit:...

  • Page 15: Dip Switch Settings

    GENERAL SPECIFICATIONS 5-3. DIP Switch Settings Switch 8 data bits 7 data bits No parity Parity checked Handshaking protocols – see table below Odd parity Even parity Data transfer rate – see table below All switches are set to ON before the printer leaves the factory. Protocol Switch 3 Switch 4...

  • Page 16: Ee-Prom Mode

    GENERAL SPECIFICATIONS EE-PROM mode 6-1. Outline These settings can be changed in the EE-PROM mode by writing data directly to the EE-PROM on the main logic board: Setting EE-PROM mode • Send <ESC><SUB>(09)H command. Canceling EE-PROM mode • Initialize the printer by sending <ESC>@ 6-2.

  • Page 17: Ee-Prom Mp

    GENERAL SPECIFICATIONS 6-3. EE-PROM MP Address Function Factory data EDS setting Bit Function b0 Emulation STANDARD/EPSON Character Table Standard / EPSON mode Graphics Italics IBM mode IBM #2 IBM #1 b2 RAM Usage Input Buffer Download Buffer b3 (Not used) —...
  • Page 18 GENERAL SPECIFICATIONS Address Function Factory data EDS setting IBM Code Page (Character Table=Graphics, IBM#1, #2) Function b0 b1 b2 b3 b4 Function b0 b1 b2 b3 b4 #437 #3841 #850 #3843 #860 #3844 #861 #3845 #863 #3846 #864 #3847 #866 #3848 #3840 #852...
  • Page 19 GENERAL SPECIFICATIONS Address Function Factory data Misalignment correction Multi-part Made 360 DPI (H) (Not used) 1CH, 1DH Top Margin in Auto-loading Friction 1EH, 1FH Top Margin in Auto-loading Tractor 20H, 21H Top Margin in Auto-loading ASF Paper End Sensor A/D Valve 23H~26H Macro Set EPSON 27H~2AH...

  • Page 20: Rewriting The Ee-Prom

    GENERAL SPECIFICATIONS 6-4. Rewriting the EE-PROM Follow this procedure to rewrite the EE-PROM. Turn the printer on. Load a BASIC disk in the computer. Turn the computer on. Set a sheet of paper in the printer, and press the ON LINE switch. Enter the program listed below and run the program.
  • Page 21 CHAPTER 2 THEORY OF OPERATION Block Diagram ..................... 19 General Flow Chart (Main Logic Board) ............20 Power Supply Circuit ..................21 Mechanisms ......................22 4-1. Print Head Mechanism ..................4-1-1. Character Mechanism ..................4-1-2. Print Wire Drive Operation ................4-2.
  • Page 22 GENERAL SPECIFICATIONS – 18 –...

  • Page 23: Block Diagram

    GENERAL SPECIFICATIONS Block Diagram The block diagram of this printer is shown in Fig. 2-1. Fig. 2-1 Block Diagram Main Logic Board This board receives data from the host computer and stores it in the RAM in the order it arrives. The CPU on this board reads the data from the RAM, and edits it according to the program stored in the ROM.

  • Page 24: General Flow Chart (Main Logic Board)

    GENERAL SPECIFICATIONS General Flow Chart (Main Logic Board) The flow chart below shows you the general flow of editing and printing operations. Fig. 2-2 General Flow Chart of Editing and Printing – 20 –...

  • Page 25: Power Supply Circuit

    GENERAL SPECIFICATIONS Power Supply Circuit A ringing choke converter type circuit is used with a dropper type circuit in the power supply unit, fulfilling the input and output conditions described in the chart below. Voltage Range Max. Current Output Service Circuit Type 120VAC 1.0 A...

  • Page 26: Mechanisms

    GENERAL SPECIFICATIONS Mechanism 4-1. Print Head Mechanism 4-1-1. Character Mechanism The wiring arrangement of the guide section on the print head styles is depicted in Fig. 2-4. Odd- and even-numbered wires are arranged it two columns. This is a result of the necessity for laying adjacent dots on top of one another. Fig.

  • Page 27: Print Head Carrying Mechanism

    GENERAL SPECIFICATIONS 4-2. Print Head Carrying Mechanism The print head carrying mechanism consists of a carriage, timing belt, carriage motor, and home position detector. Carriage The carriage is supported horizontally by the carriage stay and rear angle. The carriage moves from side to side with the print head mounted above it.

  • Page 28: Ink Ribbon Feed Mechanism

    GENERAL SPECIFICATIONS 4-3. Ink ribbon feed mechanism The ink ribbon feed mechanism is linked to the print head carrying mechanism so the ink ribbon always winds automatically in the same direction while the carriage moves left and right. The movement of the carriage along the serrated edge of the rear angle of the printer mechanism drives the idler gear. The rotation of the idler gear is conveyed sequentially to the gears that work and wind the ribbon.

  • Page 29: Paper Feed Mechanism

    GENERAL SPECIFICATIONS 4-4. Paper Feed Mechanism The paper feed mechanism consists of a paper feed motor, an idler gear, a platen and a traction unit. The paper feed motor is a PM (Permanent Magnet) 4-phase and 48 pulse motor. There are two ways of feeding paper into the printer: the friction method and the tractor method. You can select the method you want to use by setting the release lever on the push tractor unit.

  • Page 30: Detectors

    GENERAL SPECIFICATIONS 4-5. Detectors Print head temperature detectors The A/D converter in the CPU detects the print head temperature at power on and before each line begins to print. Fig. 2-9 Printer head temperature detector circuit Control Method (by Text printing) A/D Conversion Value AN Voltage Temperature...
  • Page 31 GENERAL SPECIFICATIONS Paper end Detector The paper end Detector is located in the paper chute unit. The A/D converter in the CPU detects the presence or absence of paper. Fig. 2-11 Paper end detector circuit Control Method Output Detection ( V ) No paper Paper present Release lever switch and lever switch Adjustment...
  • Page 33 CHAPTER 3 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 34 GENERAL SPECIFICATIONS – 30 –...
  • Page 35 GENERAL SPECIFICATIONS Adjustment of Gap Between Print Head and Platen Remove the front case unit ,rear angle and ribbon holder [1] according to the procedures described in chapter 4. (Fig. 3-1) Install rear angle [2]. Set adjusting lever [3] to the second position from the bottom. (Fig. 3-1) Position the center of the carriage unit [4] 55 mm from the left end of the platen assy [5].
  • Page 36 GENERAL SPECIFICATIONS Adjustment of Timing Belt Tension Remove the front case unit according to the procedures described in chapter 4. Move the carriage unit [1] up to the extreme right position. Move the screw [3] fixing tension lever assembly [2] approximately 1mm to loosen the tension, then tighten the screw.
  • Page 37 CHAPTER 4 PARTS REPLACEMENT This chapter explains disassembly and reassembly of the printer. Note the following regarding disassembly and reassembly. Disconnect the printer from the wall outlet before servicing it. Assy is the reverse of disassembly unless otherwise specified. After reassembly, coat the screw heads with locking sealant. Lubrication information is not provided in this chapter.

  • Page 39: Front Case Unit

    GENERAL SPECIFICATIONS Front Case Unit Turn off the power switch. Remove the power cord from the AC output socket. Remove Platen knob unit [1] Front case unit [2] Detach the five hooks marked A using the tool shown below. Control board [3] Detach the two hooks.

  • Page 40: Ribbon Holder

    GENERAL SPECIFICATIONS Ribbon Holder Remove Front case unit as described in section 1. Two screws [1] Rear angle [2] Ribbon holder [3] Center the carriage unit, tile it, then remove the ribbon holder. Printer Mechanism Remove Four screws [1] Four connectors [2] Two Cable [3] Printer mechanism [4] Screw [5]...

  • Page 41: Main Logic Board Unit

    GENERAL SPECIFICATIONS Main Logic Board Unit Remove Printer mechanism as described in section 4. Three screws [1] Connector [2] Main logic board [3] Power Supply Unit Remove Printer mechanism as described in section 4. Seven screws [1] Screw [2] Screw [3] Switch holder [4] Power cord holder [5] Power supply unit [6]...

  • Page 42: Print Head

    GENERAL SPECIFICATIONS Print Head Remove Front case unit as described in section 1. Two screws [1] Cable [2] Print head [3] WARNING The print head gets hot after printing. Do not touch it until it cools. Adjust Gap between print head and platen. Refer to section 1 of Chapter 3.

  • Page 43: Fuse

    GENERAL SPECIFICATIONS Fuse Remove Front case unit as described in section 1. Inspect Fuse F1 [1] Defective Replace fuse as follows: AC voltage Fose Type 120V 5TT5A-125V 220V to 240V 215-2.5A-250V New fuse blown Inspect circuit Tractor Unit Remove Rear case unit as described in section 2. Two hexagonal nuts [1] Stop ring [2] Release lever [3]...

  • Page 44: Carriage Motor Assy

    GENERAL SPECIFICATIONS 10. Carriage Motor Assy Remove Rear case unit as described in section 2. Screw [1] Spring [2] Set tension lever assy [3] in the unlocked position. Two screws [4] Carriage motor unit [5] Note: When assembling the carriage motor assy, the tension lever assy [3] must be secured with the screw [1] when the spring [2] is in place.

  • Page 45: Paper Feed Roller Assy

    GENERAL SPECIFICATIONS 12. Paper Feed Roller Assy Remove Carriage unit as described in section 11 Four springs [1], [2], [6] Four stop rings[7] Two gears [3] Two plain washer [4] Two paper feed roller Assy [5] 13. Frame Holder Remove Rear angle [1] Carriage motor unit [2] as described in section 8 Home position detector [3]...

  • Page 46: Paper Guide Assy

    GENERAL SPECIFICATIONS 14. Paper Guide Assy Remove Paper feed roller A as described in section 12. Three screws [1] Frame support (R) [2] Stop ring [3] Platen gear [4] Gear [5] Frame holder as described in section 13. Four screws [6] Two screws [7] Two washers [8] Paper guide assy [9]...

  • Page 47: Paper Feed Motor Assy

    GENERAL SPECIFICATIONS 16. Paper Feed Motor Assy Remove Platen assy as described in section 15. Two screws [1] Paper feed motor assy [2] 17. Paper Path Change Plate Remove Paper feed roller A as described in section 12. Right stop ring [1] Right release shaft [2] Push inwards.

  • Page 49: Maintenance And Lubrication

    CHAPTER 5 MAINTENANCE AND LUBRICATION Maintenance......................1-1. Cleaning ......................... 47 1-2. Checks ........................47 Lubrication ......................2-1. Lubricant ....................... 48 2-2. Lubricating Method ....................48 Lubricated Areas ....................48...
  • Page 50 GENERAL SPECIFICATIONS – 46 –...
  • Page 51 GENERAL SPECIFICATIONS 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 52: Lubricated Areas

    GENERAL SPECIFICATIONS 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 53 GENERAL SPECIFICATIONS Fig. 5-1 Lubricated Areas (printer mechanism) – 49 –...
  • Page 54 GENERAL SPECIFICATIONS Fig. 5-2 Lubricated Areas (Carriage unit ) Fig. 5-3 Lubricated Areas (tractor unit) – 50 –...
  • Page 55 GENERAL SPECIFICATIONS Fig. 5-4 Lubricated Areas (Frame R unit ) – 51 –...

  • Page 57: Troubleshooting

    GENERAL SPECIFICATIONS CHAPTER 6 TROUBLESHOOTING Troubleshooting Procedures ................Unit Replacement Priority Chart ................ Repair by Unit Replacement................Repair by Parts Replacement ................4-1. Does not Operate at All with Power on............... 63 4-2. Power Supply Circuit Abnormal ................64 4-3. Defective Motor Operation ...................
  • Page 58 GENERAL SPECIFICATIONS – 54 –...

  • Page 59: Troubleshooting Procedures

    GENERAL SPECIFICATIONS Troubleshooting Procedures Troubleshooting is never easy because various problems arise depending upon the particular location of the breakdown. The following procedures should be taken in making repairs. The first method is to make repairs through unit replacements. The two display codes appearing in the flow chart are defined as follows: 1) indicates main logic board replacement;...

  • Page 60: Unit Replacement Priority Chart

    GENERAL SPECIFICATIONS Unit Replacement Priority Chart Unit Exchange Sequence Problem Category Remarks Power Main Printer Control Details supply unit logic board mechanism panel board Specific display lamp only will not glow Specific switch only cannot be input Buzzer does not sound (sound volume inadequate)

  • Page 61: Repair By Unit Replacement

    GENERAL SPECIFICATIONS Repair by Unit Replacement START * Turn power off. * Remove I/F cable. * Mount ink ribbon. * Set paper. * Move carriage to center. Turn power on. Carriage Moves? Carriage operates normally? *1 See (6) and waveform in item 7 of Chapter 7.
  • Page 62 GENERAL SPECIFICATIONS On line lamp light? On line lamp signal is normal? Replace main logic board. Press on line switch to take off line. Replace control panel board. On line lamp is out? Press paper feed switch. Paper feed switch *2 See (7) and (8) waveform in operation is normal? item 7 of Chapter 7.
  • Page 63 GENERAL SPECIFICATIONS Printing operation *3 See (4) and (5) waveform in is normal? item 7 of Chapter 7. Print head drive signal waveform is normal? *3 1) Replace main logic board. 2) Replace printer mechanism. Replace printer mechanism. Paper feed *2 See (7) and (8) waveform in operation is item 7 of Chapter 7.
  • Page 64 GENERAL SPECIFICATIONS Printing begins? Printing operation normal? 1) Replace I/F cable. Stop print program. 2) Replace main logic board. 3) Check host computer. Carriage moves with hand? Replace printer mechanism. Output (+33V, +5V) of power supply unit is normal? *4 1) Replace main logic board.
  • Page 65 GENERAL SPECIFICATIONS Output of power supply unit is normal? *4 Turn power off. Replace power supply unit. Connect connector CN101 from power supply unit. Turn power on. Fuse blows out? Replace fuse. 1) Replace main logic board. 2) Replace printer mechanism. 3) Replace control panel board.
  • Page 66 GENERAL SPECIFICATIONS *5 See (9) waveform in item 7 of Chapter 7. I/F signal is normal? *5 Ready condition? There is data transmission? Check hardware or host I/F mode set computer print program. up properly? 1) Replace I/F cable. 2) I/F cartridge 3) Replace main logic board.

  • Page 67: Repair By Parts Replacement

    GENERAL SPECIFICATIONS Repair by Parts Replacement 4-1. Does not Operate at All with Power on START +33V, +5V supplied? *1 See 4-2. Power Supply DC Power abnormal. Circuit Abnormal. RESET signal becomes HIGH? *2 Check RESET circuit; replace parts. Crystal waveform is normal? *3 Check crystal circuit;...

  • Page 68: Power Supply Circuit Abnormal

    GENERAL SPECIFICATIONS 4-2. Power Supply Circuit Abnormal Remove connector CN101 from power supply unit. START Fuse F1 is blown? Replace Fuse F1 Fuse is blown again? Replace 1) Power supply unit The no load voltages are below: +33V Line +33V 5% Between Pin 4 and Pin 3 of CN1 +5V Line +5V 5%...

  • Page 69: Defective Motor Operation

    GENERAL SPECIFICATIONS 4-3. Defective Motor Operation Paper Feed Motor Carriage Motor START START CR-ø1, LF-CMN ø2, ø3, ø4 are signal is normal? normal? *6 Check and replace 1) TA7 Check and replace 2) TR7 1) TA 8 3) Gate array 2) Gate array LF-ø1, ø2, ø3, ø4 are...

  • Page 70: Defective Print Head Operation

    GENERAL SPECIFICATIONS 4-4. Defective Print Head Operation START Does not print at all? A specific pin does not +33V line work? Check and replace is supplied? TA1 (HD1, 2, 3, 4) TA2 (HD5, 6, 7, 8) TA3 (HD9, 10, 11, 12) TA4 (HD13, 14, 15, 16) Check and replace TA5 (HD17, 18, 19, 20)

  • Page 71: Defective Interface Operation

    GENERAL SPECIFICATIONS 4-5. Defective Interface Operation START Press on line switch to take on line. Send print program from host computer. *8 See (9) waveform in item 7 of Chapter 7. Is I/F signal normal? *8 Incorrect print generated? Check I/F cable. Check and replace 1) IC 3 2) Gate array...
  • Page 73 CHAPTER 7 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 74: Printer Assembly

    Printer Assembly 1-1. Disassembly Drawing – 70 –...

  • Page 75: Parts List

    1-2. Parts List Printer Assembly DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 89430060 MECHANISM WITH HEAD DP791C (D) 87823080 POWER SUPPLY UNIT HBF-12 US(D) FOR US 87823081 POWER SUPPLY UNIT HBF-12 US(D) FOR US 87823100 POWER SUPPLY UNIT HBF-12 EC(D) FOR EC 87823101 POWER SUPPLY UNIT HBF-12 EC(D)

  • Page 76: Printer Mechanism

    Printer Mechanism 2-1. Disassembly Drawing – 72 –...

  • Page 77: Parts List

    2-2. Parts List Printer Mechanism DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 89149130 PRINT HEAD DP7901C 86436010 TRACTOR UNIT 701C 86432021 CARRIAGE UNIT 791C 80755710 HEAD CABLE S 791C 80755720 HEAD CABLE L 791C 86430420 PF ROLLER ASSY 701C 83200881 HOLDER ROLLER...
  • Page 78 Printer Mechanism DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 02210001 PLAIN WASHER WF10X18X1.6 02206002 PLAIN WASHER WF6X13X1.0 02020401 HEXAGON NUT NH4-2 01903073 SCREW TR 3-6 FL SPECIAL 01903038 SCREW TAT 3-10 PT-FL 01903031 SCREW TR 3-6 FL 00630404 SCREW TR 3-4 80510220 SPRING E050-060-0183...

  • Page 79: Sub - Assembly

    Sub - Assembly 3-1. Lower Cace Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 83026071 LOWER CASE HF-12 83026072 LOWER CASE HF-12 LOWER CASE CHASSIS HF-12 RUBBER FOOT 15X15 QBS-10 02010401 HEXAGON NUT NH4-1 00930803 SCREW TAT 3-8 PT –...

  • Page 80: Front Case Unit

    3-2. Front Case Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 87820430 BLIND BRUSH ASSY HF-12(D) 83904780 PAPER ADJUSTER HBF-12 :NOTE1 83026062 FRONT CASE HF-12 SHEET 3 HF-12 SHEET 2 HF-12 RUBBER CUSHION B HF-12 RUBBER CUSHION A HF-12 80910451 SUB-GUIDE A...

  • Page 81: Serial-Parallel Converter ( Option )

    3-3. Serial-Parallel Converter ( Option ) DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 16-1 UPPER CASE SPC-8K 16-2 CPU BOARD UNIT SPC-8K 16-3 87590020 IF BOARD UNIT SPC-8K 16-4 LOWER CASE UNIT SPC-8K 16-5 CORD HOLDER SPC-8K 16-6 SCREW TAT 3-12 PT-FL 16-7 SCREW TAT 3-8 PT-FL...

  • Page 82: Tractor Unit

    3-4. Tractor Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 86436330 TRACTOR L ASSY 701C 86436320 TRACTOR R ASSY 701C SHEET GUIDE 701C 83200651 TRACTOR BUSHING 83101690 TRACTOR GEAR TRACTOR SHAFT 701C TRACTOR STAY 701C 80521090 SPRING C090-060-0179 04020017 STOP RING SE5.0 2-10...

  • Page 83: Carriage Unit

    3-5. Carriage Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 86432320 CLUTCH PLATE UNIT 701C 86432330 CARRIAGE ASSY 791C 86432331 CARRIAGE ASSY 791C 86060810 IDLER ASSY 86032411 GEAR A ASSY 83912331 GEAR COVER 701C 83904490 CARD HOLDER 701C 83200990 REAR ROLLER 83120470...

  • Page 84: Frame Base Assy

    3-6. Frame Base Assy DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 87770280 CABLE ASSY A 791C(D) 80705710 CABLE UNIT A 791C 83904500 DETECTOR HOLDER 701C FRAME BASE 701C 08300152 PHOTO-INTERRUPTER RPI-574 WIRE 18UL1007BLK125TT 01903064 SCREW TAT 3-5 CT –...

  • Page 85: Frame L Unit

    3-7. Frame L Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 10-1 87770210 CABLE ASSY B 701C(D) 80705650 CABLE UNIT B 701C 10-2 83904500 DETECTOR HOLDER 701C 10-3 FRAME L ASSY 701C 10-4 HEAT-SHRINK TUBE F2-2.0 10-5 09090039 LEAF SWITCH LSA1119H 10-6 08300152...

  • Page 86: Frame R Unit

    3-8. Frame R Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 11-1 86430440 PAPER FEED MOTOR ASSY 791C 11-2 FRAME R ASSY 701C 11-3 83100510 GEAR 40X0.5 11-4 83100110 GEAR 26X0.5 11-5 04020010 STOP RING SE2.0 11-6 01903064 SCREW TAT 3-5 CT –...
  • Page 87 [Blank Page] – 83 –...

  • Page 88: Wiring Scheme Of Printer

    Wiring Scheme of Printer – 84 –...
  • Page 89 – 85 –...

  • Page 90: Electrical Parts

    Electrical Parts 5-1. Main Logic Board 5-1-1. Circuit Diagram – 86 –...
  • Page 91 – 87 –...

  • Page 92: Component Layout

    5-1-2. Component Layout – 88 –...
  • Page 93 – 89 –...

  • Page 94: Parts List

    5-1-3. Parts List Main Logic Board DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 08240082 GATE ARRAY BU12308-H24W1 08250007 TMP90C041 08210103 TTL IC 74LS06 08223280 MASKED ROM 1.0 HBA-15 08223281 MASKED ROM 2.0 HBA-15 09110077 IC SOCKET ICS-32-2T 08222017 EPROM D27C1001D-150NS HBF12 *.*...
  • Page 95 Main Logic Board DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK CERA. CAPA. 0.022UF 50V C12-13 CERA. CAPA. 100PF C14-15 CERA. CAPA. 0.01UF C16-17 CERA. CAPA. 100PF CERA. CAPA. 0.01UF CERA. CAPA. 0.022UF 50V C20-22 CERA. CAPA. 30PF C23-30 NOT USED C31-34 CERA.
  • Page 96 Main Logic Board DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK RD RESISTOR 33 K-OHM 1/6W RD RESISTOR 1.5 K-OHM 1/6W RD RESISTOR 10 K-OHM 1/6W RD RESISTOR 1 K-OHM 1/6W RD RESISTOR 2.2 K-OHM 1/6W RD RESISTOR 33 K-OHM 1/6W RD RESISTOR 4.7 K-OHM 1/6W RN RESISTOR 270 OHM 1W RD RESISTOR 1.2 K-OHM 1/4W...

  • Page 97: Control Panel Board

    5-2. Control Panel Board 5-2-1. Circuit Diagram 5-2-1. Component Layout 5-2-3. Parts List Control Panel Board DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 09100640 CONNECTOR 51020-1200 SW1-4 09010041 PUSH SWITCH SKHHAL LED1-6,P 08300151 LED LTL232 08300168 LED GL3EG8 –...

  • Page 98: Connected Board

    5-3. Connected Board 5-3-1. Circuit Diagram 5-3-2. Component Layout 5-3-3. Parts List Relay Board DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK CN7A-B 09100378 CONNECTOR HLEM17S-1 JP2B 09100624 CONNECTOR 51048-1300 JP2A 09100637 CONNECTOR 51048-1700 – 94 –...

  • Page 99: Power Supply Unit

    5-4. Power Supply Unit 5-4-1. Circuit Diagram – 95 –...

  • Page 100: Component Layout

    5-4-2. Component Layout – 96 –...

  • Page 101: Parts List

    5-4-3. Parts List Power Supply Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK BEADS INDUCTOR B-01AT BEADS INDUCTOR RH035047AT-Y7 B2-3 BEADS INDUCTOR B01-RT BEADS INDUCTOR RH035047RT-Y7 BEADS INDUCTOR B-01AT BEADS INDUCTOR RH035047AT-Y7 FILM CAPA. 0.22UF 250V C2-3 NOT MOUNTED C4-5 CERA.
  • Page 102 Power Supply Unit DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK RN RESISTOR 0.15 OHM 2W RD RESISTOR 100 OHM 1/4W RD RESISTOR 10 OHM 1/4W RD RESISTOR 680 K-OHM 1/4W EXCEPT FOR US RD RESISTOR 470 K-OHM 1/4W FOR US RD RESISTOR 330 OHM 1/4W EXCEPT FOR US...

  • Page 103: Serial - Parallel Converter Board ( Option )

    Serial - Parallel Converter Board ( Option ) 6-1. Wiring Scheme – 99 –...

  • Page 104: I/F Board

    6-2. I/F Board 6-2-1. Circuit diagram 6-2-2. Component Layout 6-2-3. Parts List DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK IC101 08200125 IC-I/F LT1081CN IC102 08200109 IC-RESET M51953BL R101 RD RESISTOR 3.3 K-OHM 1/6W C101-104 CHEM. CAPA. 4.7UF C105 CAPACITOR 0.1UF 50V CN101 09100461...

  • Page 105: Cpu Board

    6-3. CPU Board 6-3-1. Circuit diagram – 101 –...

  • Page 106: Component Layout

    6-3-2. Component Layout 6-3-3. Parts List CPU Board DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK 08250011 MASKED CPU HD63B01YF-IF 08221021 SRAM HM6264LFP-100NS 07603007 DIGITAL TRANSISTOR RTIN434C-T CHIP RESISTOR 4.7 K-OHM 1/10W TR2-4 06751021 CHIP RESISTOR 1 K-OHM 1/10W 06754721 CHIP RESISTOR 4.7 K-OHM 1/10W TR6-7...

  • Page 107: Waveform With Oscilloscope

    Waveform with Oscilloscope (1) Crystal (12 MHz) (2) RESET (Power on reset) Crystal Pin 34 of IC2 Upper : RESET input Pin 1 of IC9 Time/Div : 0.2 s Lower : RESET output Pin 3 of IC9 Volt/Div : 1V Time/Div : 10 ms Volt/Div : 2V...
  • Page 108 (7) Paper Feed Motor Common Control Signal and (8) Paper Feed Motor Control Signal and Driving Signal Driving Signal Upper : LF-CM Control SignalPin 110 of IC1 Upper : LF-ø1 Control Signal Pin 13 of IC2 Lower : LF-CM Driving SignalPin 1 of CN3 Lower : LF-ø1 Driving Signal Pin 3 of CN3 Time/Div : 20 ms Time/Div : 2 ms...
  • Page 110 HEAD QUARTERS OVERSEAS SUBSIDIARY COMPANIES STAR MICRONICS U.K.LTD. STAR MICRONICS CO., LTD. JAPAN STAR MICRONICS AMERICA INC. Star House, Peregrine Business Park, Gomm Road, High Wycombe 536 Nanatsushinya, Shimizu, 70-D Ethel Road West. Bucks, HP13 7DL U.K. Shizuoka, 424, Japan Piscataway, NJ 08854-5950, U.S.A...

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