Star Micronics LS-5 SERIES Technical Manual
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Star Micronics LS-5 SERIES Technical Manual

Star Micronics LS-5 SERIES Technical Manual

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LASER PRINTER
LS-5 SERIES
TECHNICAL MANUAL
[SECOND EDITION]

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Summary of Contents for Star Micronics LS-5 SERIES

  • Page 1 LASER PRINTER LS-5 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 1992 Star Micronics Co.,Ltd.
  • Page 3 INTRODUCTION This manual is an introduction to the laser printer as shown below. It is intended for use as a reference for maintenance procedures. This manual is prepared for use at a technical level and not for the general user. •...

  • Page 4: General Specifications

    GENERAL SPECIFICATIONS – 2 –...

  • Page 5: Table Of Contents

    CHAPTER 1 GENERAL SPECIFICATIONS General Specifications..................3 Pin Functions on Interfaces .................5 2-1. Parallel Interface ..................... 5 2-2. Serial Interface ......................5 2-3. AppleTalk Interface....................5 Safety Information ....................6 3-1. Power Supply ......................6 3-2. Drive Parts ....................... 6 3-3. Safety Devices ......................6 3-4.
  • Page 6 GENERAL SPECIFICATIONS – 2 –...

  • Page 7: General Specifications

    GENERAL SPECIFICATIONS General Specifications Type Desk-top page printer Printing method Electro photography Printing speed 5 pages/min (A4 size) 3.56 pages/min (legal size) Time for first print 27 seconds or less Warm-up time 1 min or less (after power on until the printer warms up at ambient temperature of 20°C with rated AC voltage input) Optical system Laser...
  • Page 8 GENERAL SPECIFICATIONS (12) Acoustic noise (in accordance with ISO 7779) Stand by 37 dB or less Printing 45 dB or less (13) Environment Printer with EPX toner cartridge Operating temperature 5°C to 35°C Operating humidity 15% to 85%RH (without condensation) Storage temperature –20°C to 40°C Storage humidity...

  • Page 9: Pin Functions On Interfaces

    GENERAL SPECIFICATIONS Pin Functions on Interfaces 2-1. Parallel Interface Signal Pin No. Direction Function Name STROBE Goes from High to Low (for at least 0.5 microseconds) when data are valid. DATA1 DATA2 DATA3 DATA4 Eight-bit character data. DATA8 is the most significant bit; DATA1 is the least significant bit. DATA5 High is logic 1 and low is logic 0.

  • Page 10: Safety Information

    GENERAL SPECIFICATIONS Safety Information In order to prevent accidents from occurring while maintenance is being carried out, all warnings and precautions should be strictly observed while working. Never attempt any kind of dangerous work when servicing this machine. The precautions noted below are only a few of the situations which could foreseeably occur during maintenance operations.

  • Page 11: Laser Safety

    GENERAL SPECIFICATIONS 3-4. Laser safety This printer is certified as a Class 1 laser product. This means that this laser product does not emit harmful laser beams. This printer emits a Class 3B laser beam, but the beam is entirely enclosed within a protective case and an external cover, and cannot leak from the printer while the printer is in use.

  • Page 12: Printer Components

    GENERAL SPECIFICATIONS Printer Components Figure 1-3 External Dimensions Figure 1-4 Front View Figure 1-5 Rear View Figure 1-6 Inside View – 8 –...
  • Page 13 CHAPTER 2 THEORY OF OPERATION Printing Process ....................11 Paper Transportation ..................14 Functions of Main Parts..................15 3-1. Cassette Feed ......................15 3-2. Paper Transportation ....................17 3-3. Fusing and Paper Exit ..................... 19 3-4. Drive and Photographics ..................20 3-5. Electrical ........................22...

  • Page 14: Theory Of Operation

    THEORY OF OPERATION – 10 –...

  • Page 15: Printing Process

    THEORY OF OPERATION Printing Process The printing process of this system consists of repetition of the following basic seven steps: Charging Scanning exposure Developing Transfer Separation Fusing Cleaning The following schematic diagram will help to explain the printing process. : Laser Beam : Paper Path Figure 2-1 Printing Process –...
  • Page 16 THEORY OF OPERATION • Descriptions of Printing Process Process Contents Charging The surface of the drum rotated by the BCR (bias charge roll) in the EPX toner cartridge is negatively charged uniformly. The ROS assembly converts image signals from the main logic board into optical signals (laser beam), the laser beam scanning on the drum enabling exposure.
  • Page 17 THEORY OF OPERATION Pressure Roll (φ19.65mm) Fusing (φ19.65mm) Paper Heat Roll Stand by: 150°C Printing: 160°C Toner Eliminator Cleauing Cleaning Blade Separation Charging AC Bias: 200µA (f=150Hz) Drum DC Bias: –360V (φ30mm) Transfer Laser Beam Scanning Exposure Toner CM Blade DC Bias (+): 1.5µA (1000V) (–): –600V...

  • Page 18: Paper Transportation

    THEORY OF OPERATION Paper Transportation Paper transportation by the rolls is shown sequentially as follows: Cassette feed Multi-purpose tray feed Feed by the feed roll Feed by the pick up roll of the pick up roll assembly Paper transportation by the turn roll of the turn roll assembly and the pinch roll of the paper cassette Paper transportation by the take away roll of the take away roll assembly and the pinch roll of the pick up roll assembly...

  • Page 19: Functions Of Main Parts

    THEORY OF OPERATION Functions of Main Parts The following are brief descriptions with corresponding illustrations of the main parts. They are divided into the following five blocks according to their architecture: 1. Cassette Feed 2. Paper Transportation 3. Fusing and Paper Exit 4.
  • Page 20 THEORY OF OPERATION Figure 2-5 Cassette Feed – 16 –...

  • Page 21: Paper Transportation

    THEORY OF OPERATION 3-2. Paper Transportation [1] MBF Sensor (MBF: Multi-sheet Bypass Feed): Detects the presence of sheets of paper in the multi-purpose tray (front tray assembly) according to change in the position of MBF actuator. It assumes ON state when the presence of the paper is being detected. [2] Pick up Solenoid: Controls operations (rotation and stop) of the pick up roll assembly.
  • Page 22 THEORY OF OPERATION Figure 2-6 Paper Transportation – 18 –...

  • Page 23: Fusing And Paper Exit

    THEORY OF OPERATION 3-3. Fusing and Paper Exit [1] Fuser Assembly: Comprising a heater rod, heat roll, pressure roll, temp. sensor assembly, thermostat and fuse, it fuses, on a sheet of paper, toner transferred on it by heat and pressure. The items related to the fuser assembly are referred to as fuser.

  • Page 24: Drive And Photographics

    THEORY OF OPERATION 3-4. Drive and Photographics [1] Drive Assembly: Comprises a main motor and gears to transmit its drive, providing mechanical drive by rotation of the main motor. [2] ROS Assembly (ROS: Raster Output Scanner): Comprises an LD assembly, scanner assembly, SOS PCB, lens, mirror and window. The items related to the ROS assembly are referred to as ROS.
  • Page 25 THEORY OF OPERATION Figure 2-8 Drive Figure 2-9 ROS Assy Figure 2-10 EPX Toner Cartridge – 21 –...

  • Page 26: Electrical

    THEORY OF OPERATION 3-5. Electrical [1] LVPS Assembly (LVPS: Low Voltage Power Supply): Not only supplies AC power to the heater rod but produces and supplies stable DC power with low voltage to be used in the logic circuit, etc. It includes an interlock switch and a main power switch, the former being a safety switch to make or break the circuits for AC power and DC power with a low voltage of 24 V from other than the fan power supply by depressing and releasing the switch of the front cover assembly and the latter being the main power switch for turning ON and OFF...
  • Page 27 CHAPTER 3 REPLACEMENT AND ADJUSTMENTS OF PARTS This chapter explains adjustment, disassembly and reassembly of the printer. The following precautions should be noted during disassembly and reassembly: 1. Disconnect the printer from the wall outlet before servicing it. 2. Unless otherwise specified, the printer is assembled by reversing the disassembly procedure. 3.
  • Page 28 REPLACEMENT AND ADJUSTMENTS OF PARTS – 24 –...

  • Page 29: Covers

    REPLACEMENT AND ADJUSTMENTS OF PARTS Covers 1-1. Rear Cover Turn off the power switch and disconnect the power cord from the wall outlet. Pressing down on the two latches [1] on the top of the rear cover [2], open the rear cover [2]. Pressing down on the two latches [3] on the bottom of the rear cover [2], pull the rear cover [2] and remove it.

  • Page 30: Left Cover And Right Cover

    REPLACEMENT AND ADJUSTMENTS OF PARTS 1-3. Left Cover and Right Cover Remove the top cover assembly according to the procedure described in section 1-2. Remove the left cover [1] by removing the latched section [2]. Remove the right cover [3] by removing the latched section [4].

  • Page 31: Cassette Feed

    REPLACEMENT AND ADJUSTMENTS OF PARTS Cassette Feed 2-1. Feeder Assembly If an optional feeder unit has been installed, remove it before proceeding to the next step. Remove the cassette. Lay the printer on its rear cover. Remove the four screws [1]. With the unit still in its upright position, separate the feeder assembly [2] from the main unit (base en- gine).

  • Page 32: Feed Roll Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 2-3. Feed Roll Assembly Remove the following units: • Feed housing R, gear in, and gear out (according to the procedure described in section 2-2) • Two screws [1] • Three screws [2] • Feed housing L [3] •...

  • Page 33: Turn Roll Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 2-5. Turn Roll Assembly Remove the following units: • Feed housing R, gear in, and gear out (according to the procedure described in section 2-2) • Stop ring [1] • Feed bearing [2] • Turn roll assembly [3] 2-6.

  • Page 34: Feeder Pcb

    REPLACEMENT AND ADJUSTMENTS OF PARTS 2-7. Feeder PCB Remove the following units: • Cassette • Feed housing R, gear in, and gear out (according to the procedure described in section 2-2) • Two screws [1] • Three connectors (P/J116, P/J201, P/J202) [2] •...

  • Page 35: Paper Transportation

    REPLACEMENT AND ADJUSTMENTS OF PARTS Paper Transportation 3-1. Link Assembly Remove the following units: • Left cover (according to the procedure described in section 1-3) • Two screws [1] • Link assembly [2] from the ROS assembly [3] Close the front cover assembly [4] somewhat, and remove the link assembly [2] from the ROS assembly [3].

  • Page 36: Gear Double L

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-2. Gear Double L Open the front cover assembly [1]. Remove the following units: • C ring [2] • Gear double L [3] Pressing the left end of the lower chute assembly [4] onto the inlet chute assembly and pick up roll assembly, remove the gear double L [3].

  • Page 37: Lower Chute Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-4. Lower Chute Assembly Remove the following units: • Gear double L (according to the procedure described in section 3-2) • Gear double R (according to the procedure described in section 3-3) Lower the lower chute assembly [1] towards the back of the unit, and, pressing the bottom plate assembly [2] against the cam [4] of the pick up roll assembly [3], rotate the pick up roll assembly [3] until the...

  • Page 38: Front Cover Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-6. Front Cover Assembly Remove the following units: • Electrical box cover (according to the procedure described in section 5-7) • Three connectors (P/J16, P/J17) of the MCU PCB (according to the procedure described in section 5-9) •...

  • Page 39: Btr Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-7. BTR Assembly Open the front cover [1]. Pull the BTR assembly [2] off the trans. chute assembly [3], and remove it. Caution when disassembling: Be careful not to touch the BTR surface of the BTR assembly [2], or the eliminator of the trans.

  • Page 40: Inlet Chute Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-9. Inlet Chute Assembly Open the front cover assembly [1]. Remove the following units: • Inlet chute assembly [2] • Connector (P/J120) [3] • Screw [4] Pressing down on the pick up roll assembly [5], remove the inlet chute assembly [2], being careful not to touch the BTR surface of the BTR assembly [6].

  • Page 41: Front Plate Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-11. Front Plate Assembly Remove the following units: • Trans. chute assembly (according to the proce- dure described in section 3-8) • Inlet chute assembly (according to the procedure described in section 3-9) • Six screws [1] •...

  • Page 42: Pick Up Solenoid

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-13. Pick Up Solenoid Remove the following units: • Electrical box cover (according to the procedure described in section 5-7) • Connector (P/J17) on the MCU PCB • Trans. chute assembly (according to the proce- dure described in section 3-8) •...

  • Page 43: Mbf Sensor

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-15. MBF Sensor Remove the following units: • Pick up roll assembly (according to the procedure described in section 3-12) • MBF spring [1] • Two screws [2] • Connector (P/J121) [3] • MBF sensor [4] 3-16.

  • Page 44: Console Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 3-17. Console Assembly Remove the following units: • Front plate assembly (according to the procedure described in section 3-11) • Four screws [1] • Console assembly [2] • Connector (P/J200) [3] – 40 –...

  • Page 45: Fusing & Paper Exit

    REPLACEMENT AND ADJUSTMENTS OF PARTS Fusing & Paper Exit 4-1. Fuser Assembly Remove the following units: • Left cover and right cover (according to the procedure described in section 1-3) • Three screws [1] • Fuser assembly [2] Note: The connector (P/J101) will come off when the fuser assembly [2] is lifted up.

  • Page 46: Exit Chute

    REPLACEMENT AND ADJUSTMENTS OF PARTS 4-3. Exit Chute Remove the following units: • Pressure roll (according to the procedure described in section 4-2) • Two screws [1] • Two exit springs [2] • Exit chute [3] Caution when assembling: When removing the exit chute [3], be careful not to scratch the heat roller [4].

  • Page 47: Temperature Sensor Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 4-5. Temperature Sensor Assembly Remove the following units: • Exit chute (according to the procedure described in section 4-3) • Screw [1] • Two screws [2] • Three screws [3] • Ground plate [4] • Temperature sensor assembly [5] Caution when disassembling: When removing temperature sensor assembly [5], be care- ful not to scratch the heat roller [6].

  • Page 48: Heat Roll

    REPLACEMENT AND ADJUSTMENTS OF PARTS 4-7. Heat Roll Remove the following units: • Exit chute (according to the procedure described in section 4-3) • Two screws [1] • Fuser inlet chute [2] • Heater rod (according to the procedure described in section 4-6) •...

  • Page 49: Drive & Electrical

    REPLACEMENT AND ADJUSTMENTS OF PARTS Drive & Electrical 5-1. Drive Assembly Remove the following units: • Fuser assembly (according to the procedure described in section 4-1) • ESS assembly (according to the procedure described in section 5-5) • Electrical box cover (according to the procedure described in section 5-7) •...

  • Page 50: Cru Actuator Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 5-3. CRU Actuator Assembly Remove the following units: • Screw [1] and CRU sensor PCB [2] (according to the procedure described in section 5-2) • CRU actuator assembly [3] • CRU actuator spring [4] 5-4. ROS Assembly Remove the following units: •...

  • Page 51: Ess Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 5-5. ESS Assembly Remove the following units: • Left cover and right cover (according to the procedure described in section 1-3) • Connector (P/J5) [1] of the main logic board • Ten screws [2] • ESS assembly [3] Note: When the ESS assembly [3] is lifted up, the connector (P31) comes off.

  • Page 52: Electrical Box Cover

    REPLACEMENT AND ADJUSTMENTS OF PARTS 5-7. Electrical Box Cover Remove the following units: • Fuser assembly (according to the procedure described in section 4-1) • ESS assembly (according to the procedure described in section 5-5) • Connector (P/J119) [1] • Exit sensor [2] •...

  • Page 53: Mcu Pcb

    REPLACEMENT AND ADJUSTMENTS OF PARTS 5-9. MCU PCB Remove the following units: • Electrical box cover (according to the procedure described in section 5-7) • Ten connectors (P/J11 to P/J19) of the MCU PCB • Four screws [1] • MCU PCB [2] 5-10.

  • Page 54: Lvps Assembly

    REPLACEMENT AND ADJUSTMENTS OF PARTS 5-11. LVPS Assembly Remove the following units: • Earth plate assembly (according to the procedure described in section 5-8) • Ten connectors (P/J11 to P/J19) of the MCU PCB [1] • Two screws [2] • Screw [3] •...
  • Page 55 CHAPTER 4 MAINTENANCE GUIDE Preventive Maintenance ..................53 1-1. Preventive Maintenance ..................53 1-2. Consumables ......................53 1-3. Parts Replacement Schedule ................53 Test Print Mode ....................54 2-1. Functions ....................... 54 2-2. Test Print Operating Method ................54 Control........................55 3-1.

  • Page 56: Maintenance Guide

    MAINTENANCE GUIDE – 52 –...

  • Page 57: Preventive Maintenance

    MAINTENANCE GUIDE Preventive Maintenance 1-1. Preventive Maintenance Operations to prevent failure are performed during service. Preventive Maintenance Procedure: Check for the operating status of the printer. Record the accumulated number of printed sheets. Note: Use the number as a standard for replacing recommended renewal parts. The accumulated number of printed sheets can be obtained by “Page count”...

  • Page 58: Test Print Mode

    MAINTENANCE GUIDE Test Print Mode 2-1. Functions This mode enables the printer built-in test print (self-pattern print) to print at maximum speed. Printing in the test print mode makes it possible to identify whether it is caused by the main logic board or by the engine when a failure occurs.

  • Page 59: Control

    MAINTENANCE GUIDE Control 3-1. Error Massages LCD Display Meaning PRINTER ERROR Fuser assy malfunction CALL SERVICE 01 PRINTER ERROR Scanner motor malfunction CALL SERVICE 03 PRINTER ERROR Improper communication CALL SERVICE 04 Cyclic Redundancy Check error in main ROM program PRINTER ERROR CALL SERVICE 05 PRINTER ERROR...

  • Page 60: Ros Control

    MAINTENANCE GUIDE LCD Display Meaning Paper jamming PRINTER ERROR PAPER JAMMING No EPX toner cartridge PRINTER ERROR SET EP CARTRIDGE 3-2. ROS Control 3-2-1. Scanner Motor Rotation ON/OFF control of rotation of the scanner motor can be performed as follows according to each operating mode: Operating mode ON/OFF control of scanner motor rotation On-line mode...

  • Page 61: Fuser Control

    MAINTENANCE GUIDE 3-3. Fuser Control 3-3-1. Fuser Control Method ON/OFF control of the heater rod is performed based on fuser control temperature. While the ROS is warming up and the main motor is being stopped, use the standby temperature for the fuser control temperature.

  • Page 62: Cleaning Cycle

    MAINTENANCE GUIDE 3-5. Cleaning Cycle A cleaning cycle is performed with power and the CRU switch ON and when printing is completed (except for during continuous printing). Cleaning cycles include the following two types: • Warm up cleaning (when power and the CRU switch are ON) •...
  • Page 63 MAINTENANCE GUIDE Feed Solenoid Pick Up Solenoid Regi. Sensor Exit Sensor E2-1 E2-2 (Unit : Sec.) Required Time E2-1 E2-2 Tray Tray 1 (Upper cassette) 3.30 3.60 4.30 Tray 2 (Lower cassette) 5.66 5.96 6.60 6.92 17.96 22.78 Multi-Purpose tray 0.93 1.63 Note: Paper Size (A) : Except for Legal size...

  • Page 64: Connector P(Plug)/J(Jack) Arrangement

    MAINTENANCE GUIDE Connector P(Plug)/J(Jack) Arrangement 4-1. P/J Layout Drawing (1/2) – 60 –...
  • Page 65 MAINTENANCE GUIDE 4-1. P/J Layout Drawing (2/2) – 61 –...

  • Page 66: P/J List

    MAINTENANCE GUIDE 4-2. P/J List Coordinates of connectors corresponding to “4-1. P/J Layout Drawing” are shown below. Coordi- Coordi- Remark Remark nates nates • P/J in LVPS assy • P/J of the left side of ROS • For use in thermistor of temp. assy sensor assy •...

  • Page 67: Connection Wiring Diagram

    MAINTENANCE GUIDE Connection Wiring Diagram 5-1. General Connection Wiring Diagram LVPS ASSY PL 6.1 INLET P/J2 ROM BOARD RAM BOARD P/J11 P/J101 PL 6.11 FUSER ASSY PL 6.16 PL 4.1 MCU PCB PL 6.4 TRANSIT TRANSIT BD RAM BD PDL PL 6.17 PL 6.18 ROS ASSY...

  • Page 68: Connection Wiring Drawing Between Parts

    MAINTENANCE GUIDE 5-2. Connection Wiring Drawing between Parts The connection wiring drawing is divided into 11 sections to show detailed connections between parts. ↔ [LVPS assy MCU PCB] • Connection between LVPS assy and MCU PCB ↔ [LVPS assy fuser assy] •...
  • Page 69 MAINTENANCE GUIDE • Cautionary instructions for using connection wiring drawing Description Indicates the part listed in “Chapter 6. Parts List,” denoting the drawing MCU PCB number “Y” in Section “X” of the same chapter. PLX.Y Indicates a functional part, denoting its name. MAIN MOTOR Indicates a different content depending on specifications, denoting the 220-240V PRINTER...

  • Page 70: Lvps Assy Mcu Pcb

    MAINTENANCE GUIDE ↔ 5-2-1. LVPS Assy MCU PCB LVPS ASSY MCU PCB PL 6.1 PL 6.4 P/J11 ⊃ HEATER ROD ON(L) 4.2VDC – RELAY ⊃ – ⊃ – ⊃ – 5VDC-LD ⊃ – – 5VDC ⊃ – ⊃ – ⊃ –...

  • Page 71: Lvps Assy Fuser Assy

    MAINTENANCE GUIDE ↔ 5-2-2. LVPS Assy Fuser Assy LVPS ASSY PL 6.1 FUSER ASSY ⊃ PL 4.1 ⊃ TEMP. SENSOR ASSY 100-115V PRINTER PL 4.11 P/J101 P/J2 TEMP. ⊃ ⊃ – – THERMISTOR ⊃ ⊃ – – ⊃ – AC N ⊃...

  • Page 72: Ros Assy

    MAINTENANCE GUIDE ↔ 5-2-3. MCU PCB ROS Assy MCU PCB ROS ASSY PL 6.4 PL 5.2 P/J112 ⊃ – ⊃ – P/J12 DATA ⊃ ⊃ LD ASSY – – 5VDC ⊃ ⊃ – – ⊃ ⊃ – – ⊃ ⊃ –...

  • Page 73: Solenoid

    MAINTENANCE GUIDE ↔ ↔ ↔ 5-2-4. MCU PCB Feeder PCB Feeder PCB aux Feed Solenoid, Turn Solenoid FEEDER ASSY FEEDER ASSY 2TRAY PL 2.1 PL 7.1 FEEDER PCB FEEDER PCB AUX MCU PCB PL 2.15 PL 7.15 PL 6.4 P/J13 P/J115 P/J116 P/J115...
  • Page 74 MAINTENANCE GUIDE *2: Paper size related data Paper size switch Paper size signal Paper size of paper cassette voltage value (no corresponding tray) – – – – 0.0VDC (no paper cassette) 0.275~0.293VDC Monarch 0.554~0.583VDC COM-10 1.396~1.445VDC 1.680~1.730VDC 1.962~2.015VDC 2.248~2.298VDC Executive 2.530~2.584VDC 2.814~2.868VDC Legal 14"...

  • Page 75: Mcu Pcb

    MAINTENANCE GUIDE ↔ 5-2-5. MCU PCB Drive Assy MCU PCB DRIVE ASSY PL 6.4 PL 5.5 P/J14 24VDC MAIN MOTOR ⊃ – 24VDC ⊃ – ⊃ – ⊃ – ⊃ – ⊃ – *1: Description of drive assy’s main motor •...

  • Page 76: Hvps ↔ Earth Plate Assy, Trans. Chute Assy, Inlet Chute

    MAINTENANCE GUIDE ↔ ↔ ↔ 5-2-6. MCU PCB HVPS Earth Plate Assy, Trans. Chute Assy, Inlet Chute Assy BTR Assy: MCU ↔ CRU Sensor PCB HVPS TRANS. PL 6.2 CHUTE ASSY P/J RTN PL 3.12 ⊃ – P/J TR P/J TR-T ⊃...
  • Page 77 MAINTENANCE GUIDE *2: Rated output of HVPS Output name Rated output Remark CR(AC) 200µA(rms) f=150Hz CR(DC) –360VDC TR(+) 1.5µA 1000VDC TR(–) –600VDC DB(AC) 1.6KVp-p f=2.4KHz DB(DC) –270VDC – 73 –...

  • Page 78: Mcu Pcb Exit Sensor, Regi. Sensor, Mbf Sensor

    MAINTENANCE GUIDE ↔ 5-2-7. MCU PCB Exit Sensor, Regi. Sensor, MBF Sensor MCU PCB PL 6.4 5VDC EXIT SENSOR P/J119 P/J16 PL 4.29 1.2VDC ⊃ ⊃ – – ⊃ ⊃ – – ⊃ ⊃ EXIT SENSOR ON(L) 5VDC – – ⊃...

  • Page 79: Pick Up Solenoid, Fan

    MAINTENANCE GUIDE ↔ 5-2-8. MCU PCB Pick Up Solenoid, Fan MCU PCB PL 6.4 P/J301 P/J17 24VDC ⊃ ⊃ ⊃ – – PICK UP SOLENOID ⊃ ⊃ ⊃ PICK UP SOLENOID ON(L) 24VDC – – PL 3.24 P/J18 ⊃ – PL 6.5 ⊃...

  • Page 80: Main Logic Board

    MAINTENANCE GUIDE ↔ 5-2-9. Main Logic Board Console Assy MAIN LOGIC CONSOLE ASSY BOARD PL 3.32 PL 6.19 P/J6 P/J200 ⊃ ⊃ – – LCDE ⊃ ⊃ – – LCD4 ⊃ ⊃ – – LCD6 ⊃ ⊃ – – ⊃ ⊃...

  • Page 81: Lvps Assy

    MAINTENANCE GUIDE ↔ ↔ 5-2-10. LVPS Assy Main Logic Board MCU PCB MAIN LOGIC LVPS ASSY MCU PCB BOARD PL 6.1 PL 6.4 PL 6.19 P/J5 J4/P31 5VDC ⊃ ⊃ – – 5VDC ⊃ ⊃ – – ⊃ ⊃ – –...

  • Page 82: Rom Board Ms

    MAINTENANCE GUIDE ↔ ↔ ↔ ↔ 5-2-11. ROM Board MS Transit BD PDL Main Logic Board Transit BD RAM RAM Board ROM BOARD TRANSIT MAIN LOGIC TRANSIT RAM BOARD BD PDL BOARD BD RAM J1/J2 J1/J12 J7/J1 J2/J1 ⊃ ⊃ ⊃...
  • Page 83 CHAPTER 5 TROUBLESHOOTING Troubleshooting Procedures ..................81 1-1. Flow of Breakdown Recovery Steps .................. 81 1-2. Advance Confirmation ......................81 1-3. Precautions Regarding Operations ................... 82 1-4. Precautions When Carrying Out FIP .................. 82 Level 1 FIP ........................83 2-1. Control Panel Displays the Error Message “CALL SERVICE 20”...
  • Page 84 TROUBLESHOOTING – 80 –...

  • Page 85: Troubleshooting Procedures

    TROUBLESHOOTING Troubleshooting Procedures Troubleshooting can be carried out most effectively by first confirming the problem, and checking the various factors involved in advance, before using FIP (Fault Isolation Procedure) to pinpoint the problem. 1-1. Flow of Breakdown Recovery Steps The following flowchart shows the steps taken when a breakdown occurs. Confirmation of conditions/problem Advance confirmation...

  • Page 86: Precautions Regarding Operations

    TROUBLESHOOTING 1-3. Precautions Regarding Operations 1. Electrical box When checking operations with the cover removed from the electrical box and the power turned on, remove the connector on the HVPS (P/J111), unless otherwise indicated. (Since the exit sensor has been removed, however, the error message “PAPER JAMMING” will be displayed on the control panel when printing is carried out.) 2.

  • Page 87: Level 1 Fip

    TROUBLESHOOTING Level 1 FIP 2-1. CALL SERVICE 20 2-2. CALL SERVICE 04 CALL SERVICE 05 CALL SERVICE 06 CALL SERVICE 07 CALL SERVICE 10 CALL SERVICE 11 2-3. CALL SERVICE 08 2-4. CALL SERVICE 03 2-5. CALL SERVICE 01 Problem which causes error mes- 2-6.

  • Page 88: Control Panel Displays The Error Message "Call Service 20

    TROUBLESHOOTING 2-1. Control Panel Displays the Error Message “CALL SERVICE 20” Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) MCU PCB Replace MCU Does problem recur if power is turned on again?

  • Page 89: Control Panel Displays The Error Message "Call Service 08

    TROUBLESHOOTING 2-3. Control Panel Displays the Error Message “CALL SERVICE 08” Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) Optional RAM board Does problem recur if power is turned on again? Replace optional...

  • Page 90: Control Panel Displays The Error Message "Call Service 01

    TROUBLESHOOTING 2-5. Control Panel Displays the Error Message “CALL SERVICE 01” Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) Fuser assy, (2) Temp.

  • Page 91: Control Panel Displays The Error Message "Close Cover

    TROUBLESHOOTING 2-6. Control Panel Displays the Error Message “CLOSE COVER” Measure Step Check Is the front cover assy closed? To step 2 Close the assy. To step 3 Replace or Check parts with different specifications for problems with reinstall. usage, defective installation, breakage, and deformation. •...
  • Page 92 TROUBLESHOOTING Measure Step Check (Check pinch roller of pick up roll assy) To step 8 Replace pick up Is the pinch roller of the pick up roll assy rotating normally in roll assy. conjunction with the rotation of the take away roll assy? •...
  • Page 93 TROUBLESHOOTING Measure Step Check (Check eliminator of trans. chute assy) To step 19 Replace trans. Is there any dirt or grime clinging to the eliminator of the trans. chute assy or chute assy? cleaning. (Check eliminator of trans. chute assy) To step 20 Replace wire assy Is there conductivity between the eliminator of the trans.

  • Page 94: Control Panel Displays The Error Message "Set Ep Cartridge

    TROUBLESHOOTING 2-8. Control Panel Displays the Error Message “SET EP CARTRIDGE” Measure Step Check Has the EPX toner cartridge been set in position? To step 2 EPX toner cartridge. Check parts with different specifications for problems with To step 3 Replace or usage, defective installation, breakage, deformation, and adhe- reinstall.

  • Page 95: Control Panel Displays The Error Message "Cass: Refill ???" Or "Lcas: Refill ???" Or "Tray: Refill

    TROUBLESHOOTING 2-10. Control Panel Displays the Error Message “CASS: REFILL ???” or “LCAS: REFILL ???” or “TRAY: REFILL ???” Measure Step Check Is there paper in the pertinent paper supply section? Add paper. To step 2 Check parts with different specifications for problems with To step 3 Replace or usage, defective installation, breakage, deformation, and adhe-...

  • Page 96: Control Panel Displays The Error Message "Cass: Change ???" Or "Lcas: Change ???" Or "Tray: Change

    TROUBLESHOOTING 2-11. Control Panel Displays the Error Message “CASS: CHANGE ???” or “LCAS: CHANGE ???” or “TRAY: CHANGE ???” Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall.

  • Page 97: Abnormal Operation

    TROUBLESHOOTING 2-12. Abnormal Operation No error message is displayed, regardless of whether To Section 2-6 or not the front cover assy is opened. No error message is displayed, regardless of whether To Section 2-8 or not the EPX toner cartridge has been set in place. No error message is displayed, regardless of whether To Section 2-9 or not there is a paper cassette in the slot.

  • Page 98: Power Is Not Supplied

    TROUBLESHOOTING 2-12-1. Power is not Supplied Measure Step Check To step 2 Replace or Check parts with different specifications for problems with reinstall. usage, defective installation, breakage, and deformation. • Main parts to be checked: (1) LVPS assy, (2) MCU PCB, (3) Feeder assy (4) Optional feeder unit, (5) HVPS, (6) Fan, (7) Drive assy (8) Pick up solenoid, (9) Console assy, (10) ROS assy To step 3...
  • Page 99 TROUBLESHOOTING Measure Step Check (Check ROS assy) *2 Replace ROS To step 10 Disconnect connector (P/J12) from the MCU PCB. Then turn assy. on the power and see if a display appears on the LCD and if the fan rotates. (Check cassette feed section) *1 *2 To step 11 To step 16...

  • Page 100: Faulty Lcd Display

    TROUBLESHOOTING 2-12-2. Faulty LCD Display Measure Step Check To step 2 Replace or Check parts with different specifications for problems with usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) MCU PCB, (2) Console assy, (3) LVPS assy To step 3 Check main logic (Check main logic board)

  • Page 101: Faulty Key Switch

    TROUBLESHOOTING 2-12-4. Faulty Key Switch Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) MCU PCB, (2) Console assy, (3) LVPS assy (Check key switch on console assy) Replace MCU To step 3...

  • Page 102: Drive Assy Does Not Work

    TROUBLESHOOTING 2-12-6. Drive Assy does not Work Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) Drive assy, (2) MCU PCB, (3) LVPS assy (Check main motor) Replace MCU To section 3-17...

  • Page 103: Level 2 Fip

    TROUBLESHOOTING Level 2 FIP 3-1. Faulty LVPS Assy 5VDC Measure Step Check To step 2 Check parts with different specifications for problems with Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) MCU PCB, (2) LVPS assy (Check LVPS assy) Replace MCU Replace LVPS...

  • Page 104: Faulty Scanner Assy

    TROUBLESHOOTING 3-3. Faulty Scanner Assy Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) ROS assy, (2) MCU PCB, (3) Harness assy ROS (4) LVPS assy (Check power supply of scanner assy) *1 To step 3...

  • Page 105: Faulty Heater Rod

    TROUBLESHOOTING 3-5. Faulty Heater Rod Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) Fuser assy, (2) Temp. sensor assy, (3) Heater rod (4) MCU PCB, (5) LVPS assy, (6) ROS assy (7) CRU sensor PCB (Check heater rod)

  • Page 106: Faulty Temp. Sensor Assy

    TROUBLESHOOTING 3-6. Faulty Temp. Sensor Assy Measure Step Check Replace or Check parts with different specifications for problems with To step 2 usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) Fuser assy, (2) Temp. sensor assy, (3) MCU PCB (4) LVPS assy (Check temp.

  • Page 107: Faulty Regi. Sensor

    TROUBLESHOOTING 3-8. Faulty Regi. Sensor Measure Step Check To step 2 Replace or Check parts with different specifications for problems with usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) Regi. sensor, (2) MCU PCB, (3) Harness assy sensor (4) LVPS assy (Check power supply of regi.

  • Page 108: Faulty No Paper Sensor

    TROUBLESHOOTING 3-10. Faulty No Paper Sensor Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, and deformation. reinstall. • Main parts to be checked: (1) Feeder assy, (2) Optional feeder unit, (3) Feeder PCB (4) Feeder PCB aux, (5) MCU PCB, (6) Harness assy 1tray (7) Harness assy out, (8) LVPS assy To step 3...

  • Page 109: Faulty Ld Switch

    TROUBLESHOOTING 3-11. Faulty LD Switch Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) CRU sensor PCB, (2) MCU PCB, (3) CRU sensor assy (4) EPX toner cartridge, (5) Harness assy HVPS To step 4...

  • Page 110: Faulty Cru Switch

    TROUBLESHOOTING 3-12. Faulty CRU Switch Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) CRU sensor PCB, (2) MCU PCB, (3) CRU sensor assy (4) EPX toner cartridge, (5) Harness assy HVPS (6) LVPS assy...

  • Page 111: Faulty Paper Size Switch

    TROUBLESHOOTING 3-13. Faulty Paper Size Switch Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) Feeder assy, (2) Optional feeder unit, (3) Feeder PCB (4) Feeder PCB aux, (5) Size spring, (6) MCU PCB (7) Harness assy 1tray, (8) Harness assy out, (9) LVPS assy...

  • Page 112: Faulty Pick Up Solenoid

    TROUBLESHOOTING 3-14. Faulty Pick Up Solenoid Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) Pick up solenoid, (2) MCU PCB, (3) LVPS assy To step 3 To section 3-2...

  • Page 113: Faulty Feed Solenoid

    TROUBLESHOOTING 3-15. Faulty Feed Solenoid Measure Step Check Replace or Check parts with different specifications for problems with To step 2 usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) Feeder solenoid, (2) MCU PCB, (3) Feeder PCB (4) Feeder PCB aux, (5) Harness assy 1tray (6) Harness assy out, (7) LVPS assy...

  • Page 114: Faulty Turn Solenoid

    TROUBLESHOOTING 3-16. Faulty Turn Solenoid Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) Turn solenoid, (2) MCU PCB, (3) Feeder PCB (4) Feeder PCB aux, (5) Harness assy 1tray (6) Harness assy out, (7) LVPS assy...

  • Page 115: Faulty Drive Assy

    TROUBLESHOOTING 3-17. Faulty Drive Assy Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) Drive assy, (2) MCU PCB, (3) LVPS assy (4) Feeder assy, (5) Optional feeder unit (6) Take away roll assy, (7) EPX toner cartridge...

  • Page 116: Faulty Hvps Cr (Cd)

    TROUBLESHOOTING 3-18. Faulty HVPS CR (CD) Measure Step Check Replace or Check parts with different specifications for problems with To step 2 usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) HVPS, (2) MCU PCB, (3) Earth plate assy (4) Harness assy HVPS, (5) LVPS assy To section 3-2...

  • Page 117: Faulty Hvps Tr

    TROUBLESHOOTING 3-20. Faulty HVPS TR Measure Step Check To step 2 Replace or Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) HVPS, (2) MCU PCB, (3) Trans.

  • Page 118: Noise

    TROUBLESHOOTING 3-21. Noise Measure Step Check Check parts with different specifications for problems with To step 2 Replace or usage, defective installation, breakage, deformation, and adhe- reinstall. sion of grime or foreign matter. • Main parts to be checked: (1) HVPS, (2) Earth plate assy, (3) MCU PCB (4) Fuser assy, (5) Temp.
  • Page 119 TROUBLESHOOTING Measure Step Check (Check fuser assy) To step 12 Replace fuser Is there conductivity between the discharging brush of the fuser assy. cover assy and the LVPS assy frame? • Check with the fuser assy attached. To step 13 (Check fuser assy) Replace fuser Is there conductivity between the metal lever on the right side...

  • Page 120: Image Defects

    TROUBLESHOOTING Image Defects Note: The following items assume that the main logic board is normal. However, the Test Print mode can be used to determine if the problem is with the main logic board or the engine side. • If printing is normal in Test Print mode → The problem is on the main logic board side. •...
  • Page 121 TROUBLESHOOTING P-1. Light Print sample Symptom Printing is too light. (This refers to printing in which the density of the overall image is lower than the standard density.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 122 TROUBLESHOOTING P-2. Blank Print sample Symptom Blank print (white paper) (This refers to printing in which no image is printed at all, and the paper is left completely white.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 123 TROUBLESHOOTING P-3. All black Print sample Symptom Completely black print (This refers to printing in which no image is transferred, and the entire sheet of paper is completely black.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 124 TROUBLESHOOTING P-4. Vertical white bands Print sample Symptom White spaces in print (This refers to printing in which bands of the image are missing in the paper transport direction, or certain bands in the paper transport direction are too light.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 125 TROUBLESHOOTING P-5. Vertical white lines Print sample Symptom Missing sections of printing (This refers to printing in which there are white lines where the printing is missing in the paper transport direction, in solid areas or half-tone areas.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 126 TROUBLESHOOTING P-6. Horizontal white bands Print sample Symptom White spaces in print (This refers to printing in which bands of the image are missing in the direction perpendicular to the paper transport direction, or certain bands in this direction are too light.) Initial check Check parts with different specifications for problems with usage, defective...
  • Page 127 TROUBLESHOOTING P-7. Vertical black lines Print sample Symptom Black lines on print (This refers to printing in which lines appear in the paper transport direction. The width of the lines in this case is less than 1 mm.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 128 TROUBLESHOOTING P-8. Horizontal black lines Print sample Symptom Black lines in print (This refers to printing in which lines appear in the direction perpendicular to the paper transport direction. The width of the lines in this case is less than 1 mm.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 129 TROUBLESHOOTING P-9. Blank spots Print sample Symptom Missing spots (This refers to printing in which there are spots missing in the printed image.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter. •...
  • Page 130 TROUBLESHOOTING P-10. Black dots Print sample Symptom Black spots on the print (This refers to printing in which there are round images appearing on the printed image.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter. •...
  • Page 131 TROUBLESHOOTING P-11. After-image Print sample Symptom After-image on the print (This refers to printing in which the toner is not completely cleaned off of the drum, and the image is reproduced again on the next print.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 132 TROUBLESHOOTING P-12. Smudging Print sample Symptom Smudging of the print (This refers to printing in which there are smudges or grime in the white sections of the printed area.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter.
  • Page 133 TROUBLESHOOTING P-13. Skew Print sample Symptom Skewing of the print (This refers to printing in which the print is slanted.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter. •...
  • Page 134 TROUBLESHOOTING P-14. Wrinkles Print sample Symptom Wrinkles in the printed sheet Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter. • Main parts to be checked: (1) Fuser assy, (2) Heat roll, (3) Pressure roll, (4) Front plate assy (5) Front cover assy Step Check...
  • Page 135 TROUBLESHOOTING P-15. Poor fixing Print sample Symptom Faulty fusing (This refers to printing in which the printed image can be rubbed off easily by touching it.) Initial check Check parts with different specifications for problems with usage, defective installation, breakage, deformation, and adhesion of grime or foreign matter. •...
  • Page 136 GENERAL SPECIFICATIONS – 2 –...
  • Page 137 CHAPTER 6 PARTS LIST HOW TO USE PARTS LIST DRWG. NO. This column shows the drawing number of the illustration. The assemblies or units of boards described as “PLX” (where X represents a number) in this column in “Section 6 Electrical” show that they have been disassembled into lower-level parts in “Section X.” The screws and retaining rings used all section are described in “Section 17.
  • Page 138 1. Cover’s ..........135 10. Main Logic Board (LS-5EX/TT) .... 154 1-1. Disassembly Drawing ......135 10-1. Circuit Diagram ........154 1-2. Parts List ..........135 10-2. Component Layout ......165 10-3. Parts List ..........167 2. Cassette Feed ........136 11.

  • Page 139: Cover's

    Cover’s 1-1. Disassembly Drawing 1-2. Parts List Cover’s Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 80987700 TOP COVER ASSY LX05 80987701 REAR COVER LX05 80987702 LEFT COVER LX05 80987703 RIGHT COVER LX05 80060020 BRAND PLATE LS-5EX 80060030 BRAND PLATE LS-5TT...

  • Page 140: Cassette Feed

    Cassette Feed 2-1. Disassembly Drawing – 136 –...

  • Page 141: Parts List

    2-2. Parts List Cassette Feed Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 80987704 FEEDER ASSY LX05 WITH 2-20 FEEDER FRAME ASSY 80987705 FEED SOLENOID LX05 80987706 TURN SOLENOID LX05 80987707 FEED ROLL ASSY LX05 WITH 6,7 FEED CLUTCH ASSY...

  • Page 142: Paper Transportation

    Paper Transportation 3-1. Disassembly Drawing – 138 –...

  • Page 143: Parts List

    3-2. Parts List Paper Transportation Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 80987716 FRONT COVER ASSY LX05 WITH 2-34,45,47 FRONT COVER WIRE ASSY FRONT GRIP LEVER L GRIP LEVER R INNER LEVER L INNER LEVER R 87338020 MULTI-PURPOSE TRAY LX05...

  • Page 144: Fusing & Paper Exit

    Fusing & Paper Exit 4-1. Disassembly Drawing – 140 –...

  • Page 145: Parts List

    4-2. Parts List Fusing & Paper Exit Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 80987742 FUSER ASSY US LX05 100-115V :NOTE1 80987743 FUSER ASSY EC LX05 220-240V :NOTE1 FUSER FRAME ASSY FUSER FRAME L FUSER FRAME R IDLER SHAFT GEAR IDLER...

  • Page 146: Drive & Photographics

    Drive & Photographics 5-1. Disassembly Drawing – 142 –...

  • Page 147: Parts List

    5-2. Parts List Drive & Photographics Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 87339110 EPX TONER CARTRIDGE UPC LX05 FOR US 87339310 EPX TONER CARTRIDGE JP LX05 FOR JP 87339120 EPX TONER CARTRIDGE JAN LX05 EXCEPT FOR US,JP 80987755 ROS ASSY...

  • Page 148: Electrical

    Electrical 6-1. Disassembly Drawing – 144 –...

  • Page 149: Parts List

    6-2. Parts List Electrical Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 80987762 LVPS ASSY US LX05 100-115V 80987763 LVPS ASSY EC LX05 220-240V 80987764 HVPS LX05 80987774 ELEC. BOX BASE LX05 80987765 MCU PCB LX05 80987766 FAN LX05...
  • Page 150 Electrical Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 09991806 CONNECTOR COVER 17-25SN 83025070 CONNECTOR COVER LS04 80087680 BLIND PLATE LX05LC 09110132 CORD SET US INLET S-10A 2.0M 1 FOR US 09110133 CORD SET EC INLET S-10A 2.0M FOR EC 09110134 CORD SET UK INLET S-5A 2.0M...

  • Page 151: Optional Feeder Unit 250

    Optional Feeder Unit 250 7-1. Disassembly Drawing – 147 –...

  • Page 152: Parts List

    7-2. Parts List Optional Feeder Unit 250 Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC FEEDER ASSY 2TRAY WITH 2-20 FEEDER FRAME ASSY 2TRAY 80987772 FEED SOLENOID 2TRAY LX05 80987706 TURN SOLENOID LX05 80987707 FEED ROLL ASSY LX05 WITH 6,7 FEED CLUTCH ASSY...

  • Page 153: Optional Feeder Unit 500

    Optional Feeder Unit 500 8-1. Disassembly Drawing – 149 –...

  • Page 154: Parts List

    8-2. Parts List Optional Feeder Unit 500 Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC FEEDER ASSY 500 WITH 2-20 FEEDER FRAME ASSY 2TRAY 80987772 FEED SOLENOID 2TRAY LX05 80987706 TURN SOLENOID LX05 80987707 FEED ROLL ASSY LX05 WITH 6,7 FEED CLUTCH ASSY...

  • Page 155: Wiring Scheme Of Printer

    Wiring Scheme of Printer 9-1. LS-5EX LVPS ASSY PL 6.1 INLET P/J2 ROM BOARD RAM BOARD P/J11 P/J101 PL 6.11 1 FUSER ASSY PL 6.16 1 PL 4.1 MCU PCB PL 6.4 TRANSIT TRANSIT BD RAM BD PDL PL 6.17 PL 6.18 ROS ASSY P/J12...

  • Page 156: Ls-5Tt

    9-2. LS-5TT LVPS ASSY PL 6.1 INLET P/J2 ROM BOARD RAM BOARD P/J11 P/J101 PL 6.11 1 FUSER ASSY PL 6.16 PL 4.1 MCU PCB PL 6.4 TRANSIT TRANSIT BD RAM BD PDL PL 6.17 PL 6.18 ROS ASSY P/J12 P/J112 PL 5.2 P/J5...

  • Page 157: 153

    9-3. LS-5 LVPS ASSY PL 6.1 INLET P/J2 RAM BOARD P/J11 P/J101 PL 6.11 1 FUSER ASSY PL 4.1 MCU PCB PL 6.4 TRANSIT BD RAM PL 6.17 ROS ASSY P/J12 P/J112 PL 5.2 P/J114 MAIN LOGIC BOARD PL 6.19 P/J19 P/J113 FONT...

  • Page 158: Main Logic Board (Ls-5Ex/Tt)

    10. Main Logic Board (LS-5EX/TT) 10-1. Circuit Diagram – 154 –...
  • Page 159 Main Logic Board (LS-5EX/TT) 1/10 – 155 –...
  • Page 160 Main Logic Board (LS-5EX/TT) 2/10 – 156 –...
  • Page 161 Main Logic Board (LS-5EX/TT) 3/10 – 157 –...
  • Page 162 Main Logic Board (LS-5EX/TT) 4/10 – 158 –...
  • Page 163 Main Logic Board (LS-5EX/TT) 5/10 – 159 –...
  • Page 164 Main Logic Board (LS-5EX/TT) 6/10 – 160 –...
  • Page 165 Main Logic Board (LS-5EX/TT) 7/10 – 161 –...
  • Page 166 Main Logic Board (LS-5EX/TT) 8/10 – 162 –...
  • Page 167 Main Logic Board (LS-5EX/TT) 9/10 – 163 –...
  • Page 168 Main Logic Board (LS-5EX/TT) 10/10 – 164 –...

  • Page 169: Component Layout

    10-2. Component Layout: Parts Side – 165 –...
  • Page 170 10-2. Component Layout: Solder Side – 166 –...

  • Page 171: Parts List

    10-3. Parts List Main Logic Board (LS-5EX/TT) Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 08210127 TTL IC 74LS06FP*EL 08210131 TTL IC 74ALS373NS* 08200148 IC-I/F LT1081CS*EL 08200146 IC-I/F AM26LS31*MEL 08200147 IC-I/F AM26LS32*MEL 08210132 TTL IC SN74LS14*MEL 08222075 EEPROM XL93C66P 08240060 GATE ARRAY D65658GD-LX05 08240057 GATE ARRAY D65658GD-LX05...
  • Page 172 Main Logic Board (LS-5EX/TT) Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC R148-153 06755104 CHIP RESISTOR 51 OHM 1/10W R154 06751031 CHIP RESISTOR 10 K-OHM 1/10W R155-157 06751014 CHIP RESISTOR 100 OHM 1/10W 06581021 RESIS. ARRAY 1 K-OHM 1/8W 8EL 06584723 RESIS.
  • Page 173 Main Logic Board (LS-5EX/TT) Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 09100482 CONNECTOR 57RE40360-730BD29 09100483 CONNECTOR DBLD-J25SAF-21L9-1 09100551 CONNECTOR PCN10C20S2.54DSA 09100550 CONNECTOR 53259-0410 09100487 CONNECTOR DF11-24DP-2DS 09100554 CONNECTOR PHEC60P-S11 09100552 CONNECTOR IL-WZ-22PB-VF 09100553 CONNECTOR IL-WZ-22SB-VF 09100351 CONNECTOR H421113-25R 09100309 CONNECTOR MD-S8000-10 09100555 CONNECTOR PHEC68P-S11...

  • Page 174: Main Logic Board (Ls-5)

    11. Main Logic Board (LS-5) 11-1. Circuit Diagram – 170 –...
  • Page 175 Main Logic Board (LS-5) 1/7 – 171 –...
  • Page 176 Main Logic Board (LS-5) 2/7 – 172 –...
  • Page 177 Main Logic Board (LS-5) 3/7 – 173 –...
  • Page 178 Main Logic Board (LS-5) 4/7 – 174 –...
  • Page 179 Main Logic Board (LS-5) 5/7 – 175 –...
  • Page 180 Main Logic Board (LS-5) 6/7 – 176 –...
  • Page 181 Main Logic Board (LS-5) 7/7 – 177 –...

  • Page 182: Component Layout

    11-2. Component Layout: Parts Side – 178 –...
  • Page 183 11-2. Component Layout: Solder Side – 179 –...

  • Page 184: Parts List

    11-3. Parts List Main Logic Board (LS-5) Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 08251005 CPU TMP68HC000F-12 08200152 IC-RESET M51953BFP*E2 08240065 GATE ARRAY HG62F101R20FN-LX 08222047 EEPROM KM93C46 08221040 DRAM HM514260JP-80NS IC6-7 NOT MOUNTED 08222072 EPROM 27C400-150NS LS5.**.IC8...
  • Page 185 Main Logic Board (LS-5) Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 05751045 CERA. CAPA. CHIP 0.1UF 50V C7-9 05731014 CERA. CAPA. CHIP 100PF 25V 05051057 CHEM. CAPA. C11-12 05731014 CERA. CAPA. CHIP 100PF 25V 05021078 CHEM.

  • Page 186: Rom Board Ms

    12. ROM Board MS 12-1. Circuit Diagram – 182 –...
  • Page 187 ROM Board MS (1/2) – 183 –...
  • Page 188 ROM Board MS (2/2) – 184 –...

  • Page 189: Component Layout

    12-2. Component Layout [Parts side] [Solder side] – 185 –...

  • Page 190: Parts List

    12-3. Parts List ROM Board MS Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 08211026 TTL IC 74F139SJ*63EL 08240061 GAL 16V8A-MS1A-LX05 08240062 GAL 16V8A-MS-2-LX05 08211023 TTL IC 74F244SJ*63EL 08222072 EPROM 27C400-150NS 5ETI.**.IC5 08222072 EPROM 27C400-150NS 5TTI.**.IC5 08222082 MASKED ROM HN62418P-MS-F1...

  • Page 191: Ram Board

    13. RAM Board 13-1. Circuit Diagram – 187 –...

  • Page 192: Component Layout

    13-2. Component Layout [Parts side] – 188 –...

  • Page 193: Parts List

    13-3. Parts List RAM Board Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC C1-2 05021077 CHEM. CAPA. 100UF 09100556 CONNECTOR PHEC60R-R11 09100552 CONNECTOR IL-WZ-22PB-VF 09100553 CONNECTOR IL-WZ-22SB-VF 09100552 CONNECTOR IL-WZ-22PB-VF 09100553 CONNECTOR IL-WZ-22SB-VF 09100552 CONNECTOR IL-WZ-22PB-VF 09100553 CONNECTOR IL-WZ-22SB-VF —...

  • Page 194: Ram Module 1Mb

    14. RAM Module 1MB 14-1. Circuit Diagram – 190 –...

  • Page 195: Component Layout

    14-2. Component Layout [Solder side] [Parts side] 14-3. Parts List RAM Module 1MB Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 83912140 RAM MODULE GUIDE LX05 NOTE1 83912150 RAM MODULE HOOK LX05 NOTE1 IC1-2 08221036 DRAM D424800SOJ-80NS R1-2...

  • Page 196: Ram Module 2Mb

    15. RAM Module 2MB 15-1. Circuit Diagram – 192 –...

  • Page 197: Component Layout

    15-2. Component Layout [Parts side] [Solder side] Old board [Parts side] [Solder side] New board 15-3. Parts List RAM Module 2MB Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 83912140 RAM MODULE GUIDE LX05 83912150 RAM MODULE HOOK LX05 IC1-4...

  • Page 198: Font Cartridge

    16. Font Cartridge 16-1. Circuit Diagram – 194 –...

  • Page 199: Component Layout

    16-2. Component Layout [Parts side] – 195 –...

  • Page 200: Parts List

    16-3. Parts List Font Cartridge Q'TY DRWG. NO. REV. PARTS NO. PARTS NAME REMARKS RANK ASSY EX TT LC 80991770 ROM CARTRIDGE CASE LS08 80087510 ROM CARTRIDGE LABEL FC1H 80087520 ROM CARTRIDGE LABEL FC2H 80087530 ROM CARTRIDGE LABEL FC3H 80087540 ROM CARTRIDGE LABEL FC4H 80087550 ROM CARTRIDGE LABEL FC5H...

  • Page 201: List Of Standard Fasteners

    17. List of Standard Fasteners Machine Screws TRB 3-6 Length (l ) ......6mm Nominal Diameter (d) ..3mm DRWG.NO. PARTS NO. PARTS NAME 80987801 SCREW TRB3-6 LX05 80987802 SCREW TRB3-8 LX05 Self-tapping Screws TAT 3-6 Length (l ) ......6mm Nominal Diameter (d) ..
  • Page 202 Special Screws DRWG.NO. PARTS NO. PARTS NAME 80987813 SCREW TR 3-9 SPECIAL LX05 80987814 SCREW TAT3-6 SPECIAL LX05 80987815 SCREW TAT3-8 SPECIAL LX05 04991401 SCREW DBLC-J25SAF Retaining Rings – E type SE 3.0 Inner Diameter (d) ....3mm DRWG.NO. PARTS NO. PARTS NAME 04020015 STOP RING SE3.0...
  • Page 203 GENERAL SPECIFICATIONS – 2 –...
  • Page 204 HEAD QUARTERS OVERSEAS SUBSIDIARY COMPANIES STAR MICRONICS DEUTSCHLAND GMBH STAR MICRONICS U.K.LTD. STAR MICRONICS CO., LTD. JAPAN STAR MICRONICS AMERICA INC. Westerbachstraße 59 P.O.Box 940330 Star House, Peregrine Business D-60489 Frankfurt/Main 90 Park, Gomm Road, High Wycombe 536 Nanatsushinya, Shimizu, 70-D Ethel Road West.

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