Page 1 LASER PRINTER WinType 4000 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. Trademark acknowledgments Windows : Microsoft Corporation © Copyright 1996 Star Micronics Co.,Ltd.
Page 3 INTRODUCTION This manual describes the WinType 4000 laser printer. It is intended for use as a reference when performing maintenance procedures. This manual is prepared for use at a technical level and is not for the general user. This manual is divided into the following sections:...
Page 5 CHAPTER 1 GENERAL SPECIFICATIONS GENERAL SPECIFICATIONS................3 SAFETY INFORMATION ..................6 2-1. Power Supply ......................6 2-2. Drive Parts ....................... 6 2-3. Safety Devices ......................6 2-4. Laser safety ......................7 PRINTER COMPONENTS ..................8...
Page 6 GENERAL SPECIFICATIONS – 2 –...
Page 7: General Specifications
GENERAL SPECIFICATIONS GENERAL SPECIFICATIONS Engine Printing process Electro-photographic Resolution 300 x 300 dpi (Smoothing off) 600 dpi class (Smoothing on) Exposure Semi-conductor laser beam scanning Fixing Thermal fusing using heated rollers Printing speed Warm-up time 45 seconds or less after power on at 22°C (72°F) (115 volts or 220 volts) Time for first print 20.5 seconds for Letter paper...
Page 8 GENERAL SPECIFICATIONS Toner cartridge The toner cartridge consists of an OPC drum, developing roller and blades, primary charge roller, drum cleaner and high definition black toner. Toner save mode Off/Dark/Medium/Light Mode Yield Approx. 4000 pages Dark Approx. 5000 pages Medium Approx. 5700 pages Light Approx.
Page 9 GENERAL SPECIFICATIONS Reliability specifications MPBF Recommended usage: Average 2,000 pages per month Maximum 10,000 in any one month MPBF: 60,000 pages MTTR Within 30 minutes Jam ratio 1/1000 using recommended paper 1/100 using special printing materials Double feed ratio 1/1000 using recommended paper 1/100 using special printing materials Life 100,000 pages or 5 years...
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 work is being carried out. Never attempt any kind of dangerous procedure when servicing this machine.
Page 11: Laser Safety
GENERAL SPECIFICATIONS 2-4. 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 escape from the printer while the printer is in use.
Page 12: Printer Components
GENERAL SPECIFICATIONS PRINTER COMPONENTS 265 mm Parallel interface connector 235 mm Power switch Power card socket 330 mm Figure 1-4 External Dimensions Figure 1-5 Rear View Extension bar and paper support extender Upper paper tray Error LED lamp (Orange) Ready LED lamp Power release lever (Green) Output tray...
Page 13: Table Of Contents
CHAPTER 2 THEORY OF OPERATION PRINTING PROCESS ...................11 PAPER TRANSPORTATION ................14 FUNCTIONS OF THE MAIN PARTS ..............15 Covers ........................15 Feeder & Drive ...................... 15 Fuser & Paper Exit ....................17 Photographics & ROS ..................19 Electrical ........................ 21...
Page 14: Theory Of Operation
THEORY OF OPERATION – 10 –...
Page 15: Printing Process
THEORY OF OPERATION PRINTING PROCESS The printing process for this system consists of the repetition of the following five basic steps: Charging Scanning exposure Developing Transfer (Separation) Fusing (Cleaning) Pressure roller Fuser assembly Drum Magnetic roller Heat roller CM blade Ros assembly : Laser beam : Paper path...
Page 16 THEORY OF OPERATION • Description of the Printing Process Step Details The surface of the rotating drum in the EP toner cartridge is uniformly negatively charged Charging by the electric charge from the BCR (Bias Charge Roller). The ROS assembly scans the exposure by converting the image signal from the MCU PWB into an optical signal (laser beam) and directs the laser beam onto the drum.
Page 17 THEORY OF OPERATION DC Bias (+): 250V~2600V (0.5µA~1.6µA) (–): –700V Pressure roll Separation Transfer Eliminator Paper 17.28 Magnetic roll Heat roll Toner Drum Heat roll ( 30mm) While the lamp After the lamp flashes flashes CM blade six times the sixth time Developing Toner 152˚C...
Page 18: Paper Transportation
THEORY OF OPERATION PAPER TRANSPORTATION The following diagram shows the order in which paper passes over the rollers. Paper that is inserted is automatically fed. Paper is supplied and transported by the feed roller. Paper is transported by the drum and BTR assembly. Paper is transported by the heat roller and pressure roller.
Page 19: Functions Of The Main Parts
THEORY OF OPERATION FUNCTIONS OF THE MAIN PARTS The main parts are briefly described and illustrated as follows. In order to remain consistent with the parts list, parts are divided into the following five sections based on their type. Covers Feeder &...
Page 20 THEORY OF OPERATION Feed solenoid Feed roller assembly Paper set lever Feed clutch Input tray assembly Pre-regi. sensor Retard pad Paper set lever Feed roller Drive assembly Main motor Figure 2-5 Feeder & Drive – 16 –...
Page 21: Fuser & Paper Exit
THEORY OF OPERATION 3.3 Fuser & Paper Exit • Fuser Assembly The fuser assembly includes the heater rod, heat roller, pressure roller, thermostat, thermistor and exit sensor. This assembly fixes the toner onto the paper using heat and pressure, then outputs the printed paper. Parts in the fuser assembly are referred to as fusers.
Page 22 THEORY OF OPERATION Pinch roller Heat roller Pressure roller Heater rod Exit roller Exit sensor Thermister Thermal fuse Thermostat Pressure roller Pinch roller Exit roller Heat roller Figure 2-6 Fuser & Paper Exit – 18 –...
Page 23: Photographics & Ros
THEORY OF OPERATION 3.4 Photographics & ROS • HVPS (HVPS: High Voltage Power Supply) The HVPS supplies voltage/current to the BCR, magnetic roller, BTR and drum during the charging, developing and transfer steps. It also supplies current to the fan. (The front cover interlock switch is mounted onto the HVPS.) •...
Page 24 THEORY OF OPERATION HVPS CRU sensor Drum Magnetic roller CM blade EP toner cartridge LD assembly Scanner assembly ROS assembly Mirror SOS PWB Figure 2-7 Photographics & Ros – 20 –...
Page 25: Electrical
THEORY OF OPERATION 3.5 Electrical • LED & LED PWB The condition of the printer is displayed by LEDs (green/orange) and can be confirmed by observing these LEDs. • LVPS Assembly (LVPS: Low Voltage Power Supply) The LVPS assembly not only supplies AC power from the power supply to the heater rod in the fuser assembly, but also generates and supplies a stable low-voltage DC power for use in the logic circuitry, etc.
Page 26 THEORY OF OPERATION Figure 2-9 Electrical – 22 –...
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 ADJUSTMENT OF PARTS – 24 –...
Page 29: Covers
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! COVERS 1.1 Front Cover [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. (1) Grasping the left and right sides of the front cover [1], open it by pulling it down. (2) Remove the EP toner cartridge and keep it in a safe place.
Page 30: Top Cover
REPLACEMENT AND ADJUSTMENT OF PARTS 1.2 Top Cover [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. (1) Open the front cover [1], remove the EP toner cartridge and keep it in a safe place. (2) Remove the two screws [2] that can be seen when the front cover is opened.
Page 31: Rear Cover
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 1.3 Rear Cover [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Disconnect the printer’s power cord from the wall outlet.
Page 32: Bottom Cover
REPLACEMENT AND ADJUSTMENT OF PARTS 1.4 Bottom Cover [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the front cover. (Refer to section 1.1) Caution: Be careful not to break the front cover interlock actuator when installing the bottom cover while the front cover is removed.
Page 33: Fan
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 1.5 Fan [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the bottom cover.
Page 34: Feeder & Drive
REPLACEMENT AND ADJUSTMENT OF PARTS FEEDER & DRIVE 2.1 Feeder Assembly [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the top cover.
Page 35: Feed Roller Assembly
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 2.2 Feed Roller Assembly [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 36: Feed Solenoid
REPLACEMENT AND ADJUSTMENT OF PARTS 2.3 Feed Solenoid [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 37: Paper Set Lever
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 2.4 Paper Set Lever [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 38: Retard Pad
REPLACEMENT AND ADJUSTMENT OF PARTS 2.5 Retard Pad [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 39: Pre-Regi. Sensor
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 2.6 Pre-Regi. Sensor [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 40: Drive Assembly
REPLACEMENT AND ADJUSTMENT OF PARTS 2.7 Drive Assembly [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 41: Main Motor
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 2.8 Main Motor [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 42: Fuser
REPLACEMENT AND ADJUSTMENT OF PARTS FUSER 3.1 Fuser Assembly [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. Caution: Be very careful not to get burnt when working on the fuser since it becomes hot while the printer is being operated.
Page 43: Pressure Roller
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 3.2 Pressure Roller [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. Caution: Be careful not to get burnt when working on the fuser since it becomes very hot while the printer is being operated.
Page 44: Heater Rod
REPLACEMENT AND ADJUSTMENT OF PARTS 3.3 Heater Rod [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. Caution 1: Be careful not to get burnt when working on the fuser since it becomes very hot while the printer is being operated.
Page 45 REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! (2) Remove the following units: • Two screws [10] • Paper guide [11] Do not to lose the spring [12] that is placed over the screws. Caution 2: •...
Page 46: Heat Roller
REPLACEMENT AND ADJUSTMENT OF PARTS 3.4 Heat Roller [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. Caution: Be careful not to get burnt when working on the fuser since it becomes very hot while the printer is being operated.
Page 47: Thermostat
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 3.5 Thermostat [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. Caution: Be careful not to get burnt when working on the fuser since it becomes very hot while the printer is being operated.
Page 48: Thermal Fuse
REPLACEMENT AND ADJUSTMENT OF PARTS 3.6 Thermal Fuse [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. Caution: Be careful not to get burnt when working on the fuser since it becomes very hot while the printer is being operated.
Page 49: Thermistor
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 3.7 Thermistor [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. Caution: Be careful not to get burnt when working on the fuser since it becomes very hot while the printer is being operated.
Page 50: Exit Sensor
REPLACEMENT AND ADJUSTMENT OF PARTS 3.8 Exit Sensor [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. Caution: Be careful not to get burnt when working on the fuser since it becomes very hot while the printer is being operated.
Page 51: Ros
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 4.1 ROS Assembly [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. The ROS must not be running while it is being handled.
Page 52: Sos Sensor Assembly
REPLACEMENT AND ADJUSTMENT OF PARTS 4.2 SOS Sensor Assembly [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. The ROS must not be running while it is being handled. (1) Turn the printer over onto its top cover.
Page 53: Laser Diode
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 4.3 Laser Diode [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. The ROS must not be running while it is being handled.
Page 54: Scanner Assembly
REPLACEMENT AND ADJUSTMENT OF PARTS 4.4 Scanner Assembly [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. The ROS must not be running when it is being handled. (1) Turn the printer over onto its top cover.
Page 55: Mirror
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 4.5 Mirror [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. The ROS must not be running while it is being handled.
Page 56: Hvps
REPLACEMENT AND ADJUSTMENT OF PARTS 4.6 HVPS [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 57: Front Cover Interlock Switch Actuator
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 4.7 Front Cover Interlock Switch Actuator [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the bottom cover.
Page 58: Cru Sensor Pwb & Actuator
REPLACEMENT AND ADJUSTMENT OF PARTS 4.8 CRU Sensor PWB & Actuator [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Turn the printer onto its front.
Page 59: Electrical System
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! ELECTRICAL 5.1 PWB Chassis (including the MCU PWB and LVPS) [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the rear cover.
Page 60: Mcu Pwb
REPLACEMENT AND ADJUSTMENT OF PARTS 5.2 MCU PWB [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 61: Lvps Assembly
REPLACEMENT AND ADJUSTMENT OF PARTS Be sure that the power is disconnected! 5.3 LVPS Assembly [Disassembly] Warning: Turn off the power switch and disconnect the power supply cord from the wall outlet. Remove the EP toner cartridge and keep it in a safe place. (1) Remove the following units: •...
Page 62 REPLACEMENT AND ADJUSTMENT OF PARTS – 58 –...
Page 63 CHAPTER 4 MAINTENANCE GUIDE 1. DESCRIPTION OF THE DIAGNOSTIC 2. ERROR/STATUS ........76 TOOL ............. 61 List of Error/Status Codes ....76 Making Connections ......61 Error/Status Code Search and Operation .......... 78 General Diagram ......61 Error/Status Code Display ....81 Operating Mode .......
Page 64 MAINTENANCE GUIDE – 60 –...
Page 65: Description Of The Diagnostic Tool
MAINTENANCE GUIDE DESCRIPTION OF THE DIAGNOSTIC TOOL A diagnostic tool must be used in order to keep this printer in good working condition. When the diagnostic tool is connected to this printer, it can be used to set the control codes and to diagnose any problem. 1.1 Making Connections Connect the diagnostic tool to connector P/J31 on the MCU PWB of the printer using a harness.
Page 66: On-Line Mode
MAINTENANCE GUIDE 1.4 On-line Mode 1.4.1 Function This mode allows you to print using commands from MCU PWB. In addition, this diagnostic tool will only respond when the message “RDY” (READY) is displayed. 1.4.2 Entering On-line Mode The printer enters this mode when the power is first turned ON. Message is shown on the LCD while the printer is warming up.
Page 67: Input Tray Paper Setting
MAINTENANCE GUIDE 1.5.4 Input Tray Paper Setting If KEY 1 is pressed in user settings mode while the print density value is being displayed, the current input tray setting for the type of paper will be displayed as shown below. This setting is also assigned to non-volatile memory code A.
Page 68: Entering Test Print Mode
MAINTENANCE GUIDE 1.6.2 Entering Test Print Mode This mode is entered by pressing KEY 1 while turning the power switch ON and then releasing KEY 1 within three seconds. The LCD will display the following message. Caution: The printer will enter user settings mode if KEY 1 is held down for more than three seconds. After entering test print mode, message is shown on the LCD while the printer is warming up.
Page 69: Diagnosis Mode
MAINTENANCE GUIDE 1.7 Diagnosis Mode 1.7.1 Summary This mode displays the counter, which counts the number of pages which are stored in the non-volatile memory and which will be printed, checks (using the input test) that the sensors and switches are functioning properly and checks the operation and function (using the output test) of each component (main motor, HVPS, etc.).
Page 70: List Of Diagnosis Codes
MAINTENANCE GUIDE 1.7.4 List of Diagnosis Codes Diagnosis LCD Display Operation Code (Top Row) Counter PRINT COUNTER Displays the number of pages to be printed. Shows whether or not the switches and sensors are Input Test SENSOR CHECK operating properly. Displays a temperature code corresponding to the FUSER TEMP.
Page 71: Diagnosis Code Selection
MAINTENANCE GUIDE 1.7.5 Diagnosis Code Selection When diagnosis mode is entered, diagnosis code 30 is the first code displayed. Each time KEY 1 is pressed, the diagnosis code changes according to the order shown in section 1.7.4 List of Diagnosis Codes. KEY1 ON KEY1 ON KEY1 ON...
Page 72: Output Tests
MAINTENANCE GUIDE 1.7.7 Output Tests Function The output test mode has two functions. • To display the temperature set in the fuser controller and the present temperature in the fuser. • To operate each output components. Operation After entering diagnosis mode and choosing the desired diagnosis code with KEY 1, begin the diagnosis by pressing KEY 0.
Page 73 MAINTENANCE GUIDE LCD Display (An example of diagnosis code 90) KEY0 ON KEY1 ON KEY1 ON KEY0 ON Warning: If the counter or input test diagnosis is started or stopped while executing one of the diagnosis codes (90 ~ 95), the diagnosis code (90 ~ 95) will continue being executed even though “EXECUTING”, shown on the bottom row, changes to “SELECTING”.
Page 74 MAINTENANCE GUIDE Verification • Diagnosis code 07 (“FUSER TEMP. SET”) This code verifies the temperature code (corresponding to the temperature set in the fuser controller) displayed on the bottom right (two-digit, desplayed as a hexadecimal number) of the LCD. “C6” is displayed when the data in non-volatile code 9 is set to “8”. Refer to section 3.3.5 List of Temperature Codes for fuser temperatures and temperature codes.
Page 75: Counter
MAINTENANCE GUIDE 1.7.8 Counter (Diagnosis Code 30 (“PRINT COUNTER”)) Function A six-digit, (displayed as a decimal number) is displayed indicating the number of pages that are waiting in the non- volatile memory to be printed. Operation After entering diagnosis mode and choosing diagnosis code 30 with KEY 1 (diagnosis code 30 is automatically chosen when diagnosis mode is first entered), the print counter will be displayed if KEY 0 is pressed.
Page 76 MAINTENANCE GUIDE When the number in the bottom row reaches “3”, KEY 1 should be released and non-volatile settings mode will be entered. KEY1 ON Data Non-volatile code “NV”, indicating that non-volatile settings mode has been entered, is displayed on the bottom row of the LCD and a two-digit number will appear on the bottom right.
Page 77: List Of Non-Volatile Codes
MAINTENANCE GUIDE 1.8.3 List of Non-volatile Codes Can the Data [Preset Value] LCD Display (shown on the top row of the display) Non- setting be volatile changed ? Possible/ Not Code Function Details Possible CONFIGURATION 0 ~ F (16 levels) [Preset Value ____ ] Sets the configuration.
Page 78 MAINTENANCE GUIDE REG. SCAN 0 ~ 8 (9 levels) [Preset Value 4] Adjusts the registration marks at 0 indicates that the minimum amount of blank space will be left on the left side of the page the top and bottom of the page. and 8 indicates that the maximum amount of Possible blank space will be left on the left side of the...
Page 79: Non-Volatile Code Selection
MAINTENANCE GUIDE 1.8.4 Non-volatile Code Selection Non-volatile code 0 is automatically chosen after non-volatile settings mode has been entered. Each time KEY 1 is pressed, the non-volatile code changes according to the order shown in section 1.8.3 List of Non-volatile Codes. Use this key to select the appropriate non-volatile code. “SELECTING”...
Page 80: Error/Status
MAINTENANCE GUIDE ERROR/STATUS This printer is able to detect 10 different printer error conditions. The error/status code corresponding to each one is described below. 2.1 List of Error/Status Codes Error/Status Code LCD Display Details U6:POWER OFF The non-volatile memory is malfunctioning. THEN ON AGAIN U2:POWER OFF The malfunction is related to the ROS.
Page 81 MAINTENANCE GUIDE *Error messages on host computer (Printer Status Display of printer driver for the Windows) correspond the Error/ Status Code in Diagnostic tool as follows. The indication on the LCD screen of Diagnostic tool altrnates between “RDY” and LCD display of Diagnostic tool at five sconds intervel.
Page 82: Error/Status Code Search And Operation
MAINTENANCE GUIDE 2.2 Error/Status Code Search and Operation Operation Code Cause Clearing the Display 1. An error occurred when data was entered in the After cycling down, the main motor, ROS non-volatile memory while the power supply controller and fuser controller will stop run- switch was ON.
Page 83 MAINTENANCE GUIDE Operation Code Cause Clearing the Display The main motor, the ROS controller and the 1. The exit sensor was left on and was not turned fuser controller will immediately stop run- off between the time the pre-regi. sensor was ning.
Page 84 MAINTENANCE GUIDE Operation Code Cause Clearing the Display The main motor, ROS controller and fuser controller will immediately stop running. The CRU switch is not turned on. Install an EP toner cartridge. The ROS controller and the fuser controller will immediately stop running. The fuser pause command is being received and the 1.
Page 85: Error/Status Code Display
MAINTENANCE GUIDE 2.3 Error/Status Code Display The following table shows whether it is possible for the error/status codes to be displayed on the LCD in each operating mode. Error/Status Code Operating Mode On-line Mode User Settings Mode Test Print Mode Diagnosis Mode (while not diagnosing) Diagnosis Mode...
Page 86: Controllers
MAINTENANCE GUIDE CONTROLLERS 3.1 Paper Size Controller Data for non-volatile code A regarding paper size is shown below. Paper Size Non-volatile Code A UNIVERSAL MONARCH LEGAL 13" POSTCARD *1 COM-10 A4(SEF) EXECUTIVE(SEF) B5(SEF) LEGAL-14" A5(LEF) [STATEMENT(LEF)]*2 LETTER(SEF) A5(SEF) SEF: Short Edge Feed (length) LEF: Long Edge Feed (width) *1: The printer and the host computer can not support “POST CARD”...
Page 87: Ros Controller
MAINTENANCE GUIDE 3.2 ROS Controller 3.2.1 Scanner Motor Operation The ON/OFF control of the scanner motor in each operating mode is shown below. Operating Mode ON/OFF Status of the Scanner Motor On-line Mode MCU PWB User Settings Mode Normally turned OFF. Test Print Mode When the power is turned ON, the scanner motor begins running at the same time and remains ON.
Page 88: Fuser Controller
MAINTENANCE GUIDE 3.3 Fuser Controller 3.3.1 Setting the Fuser Controller The heater rod in the heater assembly is controlled according to the temperature set in the fuser controller. When the ROS is warming up and the main motor stops running, the standby temperature is used as the fuser controller temperature.
Page 89: List Of Temperature Codes
MAINTENANCE GUIDE 3.3.5 List of Temperature Codes Fuser Fuser Temperature Code (HEX) Temperature Code (HEX) Temperature Temperature 0°C 140°C C6 (C2~C9) 10°C 145°C C0 (BC~C3) 20°C FF (FE~FF) 150°C B9 (B6~BD) 30°C FE (FD~FE) 155°C B3 (AF~B6) 40°C FD (FC~FD) 160°C AC (A8~AF) 50°C...
Page 90: Erase Cycle
MAINTENANCE GUIDE 3.4 Erase Cycle When the printing operation is interrupted due to a paper jam or due to the interlock switch or the power being turned OFF, an ERASE cycle is executed in the initial recovery (when the interlock switch or the power is turned ON).
Page 91: Paper Feed Regulation Time
MAINTENANCE GUIDE 3.5 Paper Feed Regulation Time The regulation times for detecting a paper jam are shown below. However, when the timing to turn on the pre-regi. sensor is, at a maximum, 0.25 sec slower then all components after the second pre-regi. sensor will be 0.25 sec slower. E4 Regulation Time Type of Paper E4 Regulation Time...
Page 92 MAINTENANCE GUIDE E2 Regulation Time E2-1 Regulation Time (Fast Jam) 0.979 sec E2-2 Regulation Time (Misfeed jam) 2.177 sec FEED SENSOR PRE-REGI. SENSOR Paper E2-1 regulation time E2-2 regulation time Paper jam – 88 –...
Page 93: Arrangement Of
MAINTENANCE GUIDE ARRANGEMENT OF THE CONNECTORS [P (PLUG)/J (JACK)] 4.1 P/J Schematic Diagram – 89 –...
Page 94: List Of P/J Connectors
MAINTENANCE GUIDE 4.2 List of P/J Connectors The coordinates of the connectors (P/J) shown below correspond to 4.1 P/J Schematic Diagram. Coordinates Connections Connects the MCU PWB to the LVPS assembly. Connects the MCU PWB to the ROS harness assembly. Connects the MCU PWB to the exit and thermistor harness assembly.
Page 95: Wiring Diagram Connections
MAINTENANCE GUIDE WIRING DIAGRAM CONNECTIONS 5.1 Wiring Diagram of General Connections THERM HEATER THERMAL LVPS ASSY POWER SUPPLY CORD FUSE OSTAT PL 5.2 PL 3.2 PL 3.13 PL 3.14 P/J114 P/J112 FUSER ASSY PL 3.1 P/J11 P/J111 EXIT SENSOR THERMISTER PL 3.16 PL 3.15 MCU PWB...
Page 96: Wiring Diagram Of Connections Between Parts
MAINTENANCE GUIDE 5.2 Wiring Diagram of Connections Between Parts 5.2.1 Operation The wiring diagram is divided into 9 sections in order to show detailed connections between the parts. §1. [LVPS Assembly ↔ MCU PWB] • Connections between the LVPS assembly and MCU PWB §2.
Page 97: Symbols Used In The Wiring Dia- Gram For The Part Connection
MAINTENANCE GUIDE 5.2.2 Symbols used in the wiring diagram for the part connections: Explanation Indicates the name of the part listed in Chapter 6, Parts List and MCU PWB PL X.Y denotes item Y in section PLX of that chapter. MAIN MOTOR Indicates the functioning component in the part and denotes its name.
Page 98 MAINTENANCE GUIDE §1. [LVPS Assembly ↔ MCU PWB] LVPS ASSY MCU PWB PL 5.2 PL 5.1 J111 – – 24VDC – – HEATER ROD ON(L) 4.38VDC – – 5VDC – – 5VDC – – – – – – Short circuit prevention of voltages output from the LVPS assembly Output Status Short Circuit Output 5VDC...
Page 99 MAINTENANCE GUIDE §2. [LVPS Assembly ↔ Fuser Assembly] LVPS ASSY PL 5.2 FUSER ASSY PL 3.1 100V MODEL P/J112 P/J114 HEAT ROLLER ⊃ ⊃ – – AC L ⊃ ⊃ – – AC N ⊃ ⊃ – – 220V MODEL P/J114 ⊃...
Page 100 MAINTENANCE GUIDE §3. [MCU PWB ↔ ROS Assembly] MCU PWB ROS ASSY PL 5.1 PL 4.6 P/J12 P/J121 5VDC-LD ⊃ ⊃ – – 5VDC ⊃ ⊃ – – ⊃ ⊃ LD ASSY – – ⊃ ⊃ – – ⊃ ⊃ –...
Page 101 MAINTENANCE GUIDE *1: Summary of the Curves for the DATA, MO and SOS Signals (when printing in test print mode) 3.7VDC DATA 0VDC Approx. 1.6VDC 0VDC 5VDC 0VDC Interval of the SOS signal – 97 –...
Page 102 MAINTENANCE GUIDE §4. [MCU PWB ↔ Main Motor] MCU PWB MAIN MOTOR PL 5.1 PL 2.14 P/J14 24VDC MAIN MOTOR ⊃ – 24VDC ⊃ – ⊃ – ⊃ – ⊃ – ⊃ – Description of the Main Motor • The main motor is a stepping motor. •...
Page 103 MAINTENANCE GUIDE §5. [MCU PWB ↔ HVPS ↔ EP Toner Cartridge, Fan] MCU PWB HVPS PL 5.1 PL 4.1 P/J15 P/J151 24VDC ⊃ ⊃ – – 24VDC ⊃ ⊃ – – TR-D/A ON(L) 5VDC ⊃ ⊃ – – TR-A/D ON(L) 5VDC ⊃...
Page 104 MAINTENANCE GUIDE Signal Wire Name Reference TR-D/A ON(L) 5VDC This is the output signal for both sides of the TR. TR-A/D ON(L) 5.1VDC This signal converts the TR output current that flows to the TR into a voltage. TR(–) This signal controls the DC voltage sent from the HVPS to the BTR. DB ON(L) 24VDC This is the DB output signal.
Page 105 MAINTENANCE GUIDE §6. [MCU PWB ↔ Exit Sensor, Thermistor] MCU PWB PL 5.1 EXIT SENSOR P/J132 PL 3.16 ⊃ – ⊃ – 5VDC ⊃ – P/J13 1.2VDC ⊃ – ⊃ FUSER ASSY – PL 3.1 ⊃ EXIT SENSOR ON(L) 5VDC –...
Page 106 MAINTENANCE GUIDE §7. [MCU PWB ↔ Pre-regi. Sensor, Feed Solenoid] MCU PWB FEEDER ASSY PL 5.1 PL 2.1 P/J16 FEED SOLENOID ON(L) 24VDC ⊃ – FEED SOLENOID ⊃ 24VDC PL 2.10 – 5VDC PRE-REGI. SENSOR P/J18 P/J181 PL 2.7 1.2VDC ⊃...
Page 107 MAINTENANCE GUIDE §8. [MCU PWB ↔ CRU Sensor PWB] MCU PWB CRU SENSOR PWB PL 5.1 PL 4.2 P/J17 P/J171 ⊃ ⊃ – – CRU SWITCH EP CHECK ON(L) 5VDC ⊃ ⊃ (S101) – – 5VDC ⊃ ⊃ – – LD SWITCH 5VDC-LD ⊃...
Page 108 MAINTENANCE GUIDE §9. [MCU PWB ↔ LED PWB] MCU PWB PL 5.1 LED PWB PL 1.5 P/J32 P/J321 Ready-LED ON(L) 5VDC ⊃ ⊃ – – GREEN 5VDC ⊃ ⊃ – – Error-LED ON(L) 5VDC ORENGE ⊃ ⊃ – – Signal Wire Name Reference Ready-LED ON(L) 5VDC This output signal causes the green LED to turn on or flash.
Page 109: Printing Alignment
MAINTENANCE GUIDE PRINTING ALIGNMENT A method for easily determining the alignment of the test pattern printed on letter-sized paper in test mode is shown below. Leave the paper in its original package in the environment where the printer is being operated for 12 hours and use paper from a package that has just been opened.
Page 110 MAINTENANCE GUIDE (2) Side Edge Registration Mark (4.0 – 2.5mm) ≤ C ≤ (4.0 + 2.5mm) D = D Direction the paper is fed through the printer – 106 –...
Page 111 MAINTENANCE GUIDE (3) Skew (– 2.0mm) ≤ E ≤ (+ 2.0mm) E = F – G H = 245mm Direction the paper is fed through the printer – 107 –...
Page 112 MAINTENANCE GUIDE Right Angles (– 1.3mm) ≤ J ≤ (+ 1.3mm) K = L M = 210mm Direction the paper is fed through the printer 90° – 108 –...
Page 113 MAINTENANCE GUIDE (5) Degree of Parallelization (– 2.0mm) ≤ T ≤ (+ 2.0mm) T = U – V U ≤ 390mm W ≤ 245mm Direction the paper is fed through the printer – 109 –...
Page 114 MAINTENANCE GUIDE – 110 –...
Page 115 CHAPTER 5 TROUBLE SHOOTING GUIDE 1. TROUBLESHOOTING PROCEDURES ................113 Flow of Breakdown Recovery Steps ..................113 Advance Confirmation ......................114 Operating Precautions ......................114 Precautions when Carrying Out FIP ..................115 2. LEVEL 1 FIP ........................116 U6 ............................117 U2 ............................
Page 116 TROUBLESHOOTING – 112 –...
Page 117: Troubleshooting Procedures
TROUBLESHOOTING TROUBLESHOOTING PROCEDURES Troubleshooting can be carried out most effectively by first confirming the problem and checking the factors involved before using the FIP (Fault Isolation Procedure) and Chapter 4, Maintenance Guide to pinpoint the problem. 1.1 Flow of Breakdown Recovery Steps The following flowchart shows the steps that must be taken when a breakdown occurs.
Page 118: Advance Confirmation
TROUBLESHOOTING 1.2 Advance Confirmation Before beginning the troubleshooting procedure, always check the following: Be sure that the power supply voltage is within the specifications. (Measure the voltage from the power supply outlet.) Be sure that the power cord has not been damaged, shorted or disconnected and that it is correctly connected. Be sure that the equipment has been properly grounded.
Page 119: Precautions When Carrying Out Fip
TROUBLESHOOTING 1.4 Precautions when Carrying Out FIP The FIP procedures assume that the MCU PWB is functioning normally. However, if the problem cannot be corrected using the troubleshooting procedures, the MCU PWB should be replaced and the printer’s operation should be checked again. When FIP is used to carry out the troubleshooting procedures, an MCU PWB and EP toner cartridge that are known to be functioning normally should be used to diagnose the cause of the breakdown.
Page 120: Level 1 Fip
TROUBLESHOOTING LEVEL 1 FIP Malfunction See section 2.1 U6 See section 2.2 U2 See section 2.3 U4 See section 2.4 E5 See section 2.5 E4 Problem which causes error or status See section 2.6 E3 code to be displayed See section 2.7 E2 See section 2.8 J3 See section 2.9 P1 See section 2.10 CX...
Page 121 TROUBLESHOOTING 2.1 U6 Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or See step 2. or different from those listed in the specifications? install the part • Principle Parts to be Checked: correctly. (1) MCU PWB Does the problem recur if the power is turned OFF See step 5.
Page 122 TROUBLESHOOTING 2.2 U2 Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed or different from those listed in the specifications? • Principle Parts to be Checked: Replace the part or See step 2. (1) ROS assembly, (2) MCU PWB install the part (3) LVPS assembly, (4) CRU sensor PWB correctly.
Page 123 TROUBLESHOOTING 2.3 U4 Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly. (1) Fuser assembly, (2) MCU PWB, (3) LVPS assembly (Check the thermistor in the fuser assembly.) *1...
Page 124 TROUBLESHOOTING 2.4 E5 Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly. (1) MCU PWB, (2) HVPS assembly (3) Interlock access pin (Check the interlock access pin.)
Page 125 TROUBLESHOOTING 2.5 E4 Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifica- tions? Replace the part or • Principle Parts to be Checked: install the part See step 2. (1) Fuser assembly, (2) Exit sensor correctly.
Page 126 TROUBLESHOOTING 2.6 E3 Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifica- tions? • Principle Parts to be Checked: Replace the part or (1) Fuser assembly, (2) Exit sensor install the part See step 2.
Page 127 TROUBLESHOOTING Remedy Step Check (Check the feed roller assembly.) Is the roller in the feed roller assembly rotating properly? Replace the feed • Simultaneously execute diagnosis codes 80 and 90 See step 8. roller assembly. and check that the parts operate correctly with the top cover removed and the EP toner cartridge installed.
Page 128 TROUBLESHOOTING 2.7 E2 Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifica- tions? • Principle Parts to be Checked: Replace the part or install the part See step 2. (1) Pre-regi.
Page 129 TROUBLESHOOTING Remedy Step Check (Check the retard spring.) Does the retard spring cause the retard pad to apply pressure to the roller in the feed roller assembly? • After paper has been fed into the printer and the Replace the feeder paper set lever has been set, pull out the paper to See step 10.
Page 130 TROUBLESHOOTING 2.8 J3 Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed or different from those listed in the specifications? Replace the part or • Principle Parts to be Checked: install the part See step 2. correctly. (1) CRU sensor, (2) MCU PWB (3) CRU actuator, (4) EP toner cartridge (5) Harness assembly CRU, (6) LVPS assembly...
Page 131 TROUBLESHOOTING 2.10 CX Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? • Principle Parts to be Checked: install the part See step 2. (1) Pre-regi. sensor, (2) Feeder assembly correctly.
Page 132: Unusual Operation
TROUBLESHOOTING 2.11 Unusual Operation The E5 error message is not displayed regardless of See section 2.4 E5 whether or not the front cover assembly is open. The J3 error message is not displayed regardless of See section 2.8 J3. whether or not the EP toner cartridge is installed. Power is not supplied to the printer even though See section 2.11.1 No the power supply switch is turned ON.
Page 133: No Power
TROUBLESHOOTING 2.11.1 No Power Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 134: Unusual Printing Operation
TROUBLESHOOTING 2.11.2 Unusual Printing Operation Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 135: Level 2 Fip
TROUBLESHOOTING LEVEL 2 FIP 3.1 Faulty LVPS Assembly 5VDC Remedy Step Check (Initial Check) Replace the part or Are any parts broken, malformed, incorrectly installed install the part See step 2. or different from those listed in the specifications? correctly. •...
Page 136: Faulty Scanner Assembly
TROUBLESHOOTING 3.3 Faulty Scanner Assembly Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 137: Faulty Ros Assembly
TROUBLESHOOTING 3.4 Faulty ROS Assembly Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 138: Faulty Heater Rod
TROUBLESHOOTING 3.5 Faulty Heater Rod Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 139 TROUBLESHOOTING Remedy Step Check (Check the thermal fuse.) In order to determine Has the thermal fuse melted? the reason for the thermal fuse melting, Replace the fuser follow the procedure assembly. in section 2.3 U4 after replacing the fuser assembly. *4 *4: If the procedure in section 2.3 U4 is followed and no other problems are detected, follow the procedure below: If the thermal fuse melts again, replace the LVPS assembly and MCU PWB parts.
Page 140: Faulty Thermistor
TROUBLESHOOTING 3.6 Faulty Thermistor Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 141: Faulty Exit Sensor
TROUBLESHOOTING 3.7 Faulty Exit Sensor Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed or different from those listed in the specifications? Replace the part or • Principle Parts to be Checked: install the part See step 2. correctly.
Page 142: Faulty Pre-Regi. Sensor
TROUBLESHOOTING 3.8 Faulty Pre-regi. Sensor Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifica- Replace the part or tions? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 143: Faulty Ld Switch
TROUBLESHOOTING 3.9 Faulty LD Switch Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifica- Replace the part or tions? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 144: Faulty Cru Sensor
TROUBLESHOOTING 3.10 Faulty CRU Sensor Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifica- Replace the part or tions? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 145: Faulty Feed Solenoid
TROUBLESHOOTING 3.11 Faulty Feed Solenoid Remedy Step Check (Initial Check) Are any parts, broken, malformed, incorrectly in- Replace the part or stalled or different from those listed in the specifica- tions? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 146: Faulty Drive Assembly
TROUBLESHOOTING 3.12 Faulty Drive Assembly Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifica- Replace the part or tions? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 147 TROUBLESHOOTING Remedy Step Check (Check the EP toner cartridge.) *1 Does the drive assembly rotate smoothly when the hand crank is used and the EP toner cartridge is Replace the EP toner removed? See step 8. cartridge. • Rotate the gear installed on the left clockwise by hand to determine whether the drive assembly rotates smoothly.
Page 148: Faulty Fan
TROUBLESHOOTING 3.13 Faulty Fan Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 149: Faulty Hvps Cr/Tr/Db
TROUBLESHOOTING 3.14 Faulty HVPS CR/TR/DB Remedy Step Check (Initial Check) Are any parts broken, malformed, incorrectly installed Replace the part or or different from those listed in the specifications? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 150: Faulty Led
TROUBLESHOOTING 3.15 Faulty LED Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifica- Replace the part or tions? install the part See step 2. correctly. • Principle Parts to be Checked: (1) LED PWB, (2) MCU PWB, (3) LVPS assembly, (4) Harness assembly LED See section 3.1...
Page 151: Noise
TROUBLESHOOTING 3.16 Noise Remedy Step Check (Initial Check) Are any parts dirty, broken, malformed, incorrectly Replace the part or installed or different from those listed in the specifica- tions? install the part See step 2. • Principle Parts to be Checked: correctly.
Page 152 TROUBLESHOOTING Remedy Step Check (Check the HVPS.) Does the problem recur if diagnosis codes 91 ~ 95 are executed with the drive assembly spring and all of the See step 10. Replace the HVPS. connectors except P/J151 removed? • Check with all the covers installed. Does the problem recur if diagnosis codes 91 ~ 95 are executed with all of the connectors removed? Replace the MCU...
Page 153: Poor Image Quality
TROUBLESHOOTING 4. POOR IMAGE QUALITY Caution: The following troubleshooting procedure assumes that the MCU PWB is operating normally. However, test print mode can easily be used to determine whether it is the MCU PWB or the printer which is malfunctioning. •...
Page 154 TROUBLESHOOTING P-1 Light Print Sample Symptom Light print (The density of the overall image is less than the standard print density.) Initial Check PRINTER Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? PRINTER •...
Page 155 TROUBLESHOOTING P-2 Blank Print Sample Symptom Blank paper (white paper) (No image is printed at all and the paper is left completely white.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? •...
Page 156 TROUBLESHOOTING P-3 All black Print Sample Symptom Completely black paper (No image is transferred and the paper is completely black.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? • Principle Parts to be Checked: (1) EP toner cartridge, (2) HVPS, (3) Drive assembly, (4) ROS assembly (5) MCU PWB, (6) Harness assembly HVPS Step...
Page 157 TROUBLESHOOTING P-4 Vertical white bands Print Sample Symptom White bands in the print (White bands where the image is too light or missing appear on the paper in the direction in which the paper was fed into the printer.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different PRINTER from those listed in the specifications?
Page 158 TROUBLESHOOTING P-5 Vertical white lines Print Sample Symptom White lines in the print (White lines where the image is too light or missing appear on the paper in the direction in which the paper was fed into the printer.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? •...
Page 159 TROUBLESHOOTING P-6 Horizontal white bands Print Sample Symptom White spaces in the print (White lines where the image is too light or missing appear on the paper in a direction perpendicular to the paper feed direction.) PRINTER Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different PRINTER from those listed in the specifications? •...
Page 160 TROUBLESHOOTING P-7 Vertical black lines Print Sample Symptom Black lines in the print (Black lines with a width of less than 1 mm appear on the paper in the direc- tion in which the paper was fed into the printer.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different PRINTER...
Page 161 TROUBLESHOOTING P-8 Horizontal black lines Print Sample Symptom Black lines in the print (Black lines with a width of less than 1 mm appear on the paper in a direction perpendicular to the paper feed direction.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different PRINTER from those listed in the specifications? •...
Page 162 TROUBLESHOOTING P-9 Blank spots Print Sample Symptom Empty spots in the print (There are spots on the paper where the print is missing.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? •...
Page 163 TROUBLESHOOTING P-10 Black spots Print Sample Symptom Black dots in the print (There are black dots on the printed paper.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? PRINTER • Principle Parts to be Checked: (1) EP toner cartridge, (2) Fuser assembly, (3) Heat roller (4) Pressure roller Step...
Page 164 TROUBLESHOOTING P-11 After-image Print Sample Symptom After-image in the print (The toner is not completely cleaned off the drum and the image is reproduced again on the next page.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? •...
Page 165 TROUBLESHOOTING P-12 Smudging Print Sample Symptom Smudged print (There are smudges in the blank spaces on the printed image.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? PRINTER • Principle Parts to be Checked: (1) EP toner cartridge, (2) HVPS, (3) Drive assembly (4) MCU PWB, (5) HVPS harness assembly, (6) LVPS assembly (7) ROS assembly...
Page 166 TROUBLESHOOTING P-13 Skewed Print Sample Symptom Skewed print (The print is slanted.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? PRINTER • Principle Parts to be Checked: (1) EP toner cartridge, (2) Feed roller assembly, (3) Feeder assembly (4) ROS assembly Step Check...
Page 167 TROUBLESHOOTING P-14 Wrinkles Print Sample Symptom There are wrinkles in the paper that has been printed on. Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? • Principle Parts to be Checked: (1) Fuser assembly, (3) Heat roller, (3) Pressure roller Step Check...
Page 168 TROUBLESHOOTING P-15 Poor fixing Print Sample Symptom Faulty fixing (The printed images and characters can be rubbed off the paper easily.) Initial Check Are any parts dirty, broken, malformed, incorrectly installed or different from those listed in the specifications? PRINTER •...
Page 169 CHAPTER 6 PARTS LIST HOW TO USE PARTS LIST DRWG. NO. This column shows the drawing number of the illustration. The screws and retaining rings used all section are described in “Section 6. List of Standard Fasteners”. REVISED EDITION MARK This column shows a revision number.
Page 170 1. COVERS ............................167 1-1. Disassembly Drawing ..........................167 1-2. Parts List ..............................167 2. FEEDER & DRIVE ..........................168 2-1. Disassembly Drawing ..........................168 2-2. Parts List ..............................168 3. FUSER & PAPER EXIT ........................169 3-1. Disassembly Drawing ..........................169 3-2.
Page 171: Covers
COVERS 1-1. Disassembly Drawing 3 (with 4) 1-2. Parts List DRWG.NO.REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK ASSY 80945105 DELIVERY TRAY ASSY LX04 80945106 INPUT TRAY ASSY LX04 80945107 TOP COVER LX04 WITH 4 80945108 LED HOLDER LX04 80945109 LED PWB LX04 80945110...
Page 172: Feeder & Drive
FEEDER & DRIVE 2-1. Disassembly Drawing 1 (With 2~12) (With 12) 8 (With 9) 13 (With 14) 2-2. Parts List DRWG.NO.REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK ASSY 80945115 FEEDER ASSY LX04 WITH 2 TO 12 FEED ROLLER ASSY FEEDER FRAME PEAPER SET LEVER SPRING...
Page 173: Fuser & Paper Exit
FUSER & PAPER EXIT 3-1. Disassembly Drawing 1 (With 2~30) – 169 –...
Page 174: Parts List
3-2. Parts List Fuser & Paper Exit DRWG.NO.REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK ASSY 80945121 FUSER ASSY 115V LX04 WITH 2 TO 30:100-115 S 80945122 FUSER ASSY 220V LX04 WITH 2 TO 30:200-240 S 80945123 HEATER ROD 115V 320W LX04 100-115V 80945124...
Page 175: Photographics & Ros
PHOTOGRAPHICS & ROS 4-1. Disassembly Drawing 6 (With 7~12) 4-2. Parts List DRWG.NO.REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK ASSY 80945130 HVPS LX04 80945131 CRU SENSOR PWB LX04 CRU ACTUATOR 80945132 CRU ACTUATOR CAP LX04 FRONT COVER INTERLOCK ACTUATOR 80945133 ROS ASSY LX04...
Page 176: Electrical
ELECTRICAL 5-1. Disassembly Drawing 14-4 14-1 14-2 14-3 – 172 –...
Page 177: Parts List
5-2. Parts List Electrical DRWG.NO.REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK ASSY 80945137 MCU PWB LX04 80945138 LVPS ASSY 115V LX04 100-115V 80945139 LVPS ASSY 220V LX04 220-240V 80945140 HARNESS ASSY HEATER 115V LX04 PJ112<->PJ114 80945141 HARNESS ASSY HEATER 220V LX04 PJ112<->PJ114 PWB CHASSIS 80945142...
Page 178: List Of Standard Fasteners
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 80945150 SCREW TRB3-10 LX04 Self-tapping Screws TAT 3-6 Length (l ) ......6mm Nominal Diameter (d) ..
Page 180 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 Park, Gomm Road, High Wycombe D-60489 Frankfurt/Main 90 536 Nanatsushinya, Shimizu, 70-D Ethel Road West.

Star Micronics WinType 4000 Technical Manual

Table of Contents

Chapter 2 Theory of Operation 2

Chapter 3 Replacement and Adjustments of Parts

Chapter 4 Maintenance Guide

Chapter 5 Trouble Shooting Guide

Quick Links

Chapters

Related Manuals for Star Micronics WinType 4000

Summary of Contents for Star Micronics WinType 4000

Table of Contents