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Konica Minolta 2300 (7)Removal of the Duplex Unit Control Board

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(7)Removal of the Duplex Unit Control Board

1.Remove one screw and the PWB Protective Cover.

4131D075AA

2. Remove the harness and connector.

3. Remove two screws and the Duplex Unit Control Board.

4131D076AA

105

Contents

Page Trademarks Page Page Page Page Page Page Page Page 1.SAFETY PRECAUTIONS FOR INSPECTION AND SERVICE 1-1.Warning 3.Do not throw toner or the toner bottle into a fire 4.Use the specified parts 5.Handle the power cord with care and never use a multiple outlet 6.Be careful with the high-voltageparts 7.Do not work with wet hands 1-2.Caution 2.Precautions for Servicing with Covers and Parts Removed 3.Precautions for the Working Environment 4.Precautions for Handling Batteries. (Lithium, Nickel-Cadmium,etc.) 5.Precautions for the Laser Beam. (Only for Products Employing a Laser) 6.Precautions for storing the toner or imaging cartridge 1-3.Used Batteries Precautions 1-4.Other Precautions 1-5.Precautions for Service 4. Precautions for Dis/Reassembly 5. Precautions for Circuit Inspection 6.Handling of PWBs During Transportation/Storage 7. Handling of Other Parts 8. Handling of the Imaging Cartridge 1-6.Safety information the U.S.A., Canada (CDRH Regulation) CAUTION All Areas Denmark Finland, Sweden VAROITUS VARNING VARO Norway 1-7.Laser Safety Label 1-8.Laser Caution Label 1-9.PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT Page Page Page 1.Product Specifications (2) Second paper cassette (Option) (3) Duplex unit (4)Controller magicolor 2300DL (PWB-P) (5)Controller magicolor 2350 (PWB-P) (6)Controller magicolor 2300W (PWB-P) 2.Installation Precautions 2-1.Installation environment 2-2.Installation power supply 2-3.Space requirements 3.Operation Precautions 3-1.Ensuring the optimum performance of this unit 3-2.Operating environment 3-3.Power supply requirements 3-4.Other precautions 3-5.Parts Identification Page Page 1.CROSS-SECTIONALVIEW 2.ELECTRICAL COMPONENTS LAYOUT Page (2)2300DL Controller (3) 2350 Controller (4)2300W Controller SEQUENCE OPERATING 4.IMAGE STABILIZATION CONTROL 4-1.AIDC Detection Outline of AIDC Control 4-3.Operation Timing 4-4.Temperature/Humidity Sensor 4-5.ATVC (Auto Transfer Voltage Control 5.DRUM CARTRIDGE 5-1.PC Drum 5-2.PC Drum Charging 6.LASER EXPOSURE (3)Print Area 7.DEVELOPING UNIT (3)Drive for the Developing Roller 7-1.Developing Position 7-2.Toner Cartridge (2)First Regulator Blade / Second Regulator Blade (3)Developing Roller (4)Developing Bias (5)Toner Empty Detection (6)Bias Seal (7)Toner Cartridge Installation Detection (8)Detection of a brand new Toner Cartridge 8.IMAGE TRANSFER 8-1.Image Transfer Belt Unit (3)First Image Transfer (4)Second Image Transfer (5)Second Image Transfer Roller Pressure/Retraction (6)Second Image Transfer Roller Pressure/Retraction Timing 8-2.Second Image Transfer Roller Cleaning 8-3.Image Transfer Belt Cleaning Mechanism (2)Image Transfer Belt Cleaning Blade Retraction 8-4.Waste Toner Bottle 8-5.Waste Toner Bottle Detection 9.FUSING SECTION 9-1.Fusing Unit (2)Drive (3)Fusing Roller Pressure 9-2.Fusing Temperature Control (2)Fusing Temperature Control 10. PAPER TAKE-UPSECTION 10-1.Manual Feed Tray 10-2.Lower Feeder Unit (Option) 11. OTHER MECHANISMS 11-1.Duplex Unit (Option) (2)Paper Feeding Method Page Page Page Page Page Page Page Page 1.Disassembly/Assembly Precautions 1-1.Precautions for disassembly and assembly 1-2.Parts that must not be touched 1-3.Precautions for transporting or storing PWBs 1-4.Precautions for replacing PWBs 1-6.Precautions for transporting or storing the OPC drum cartridge 1-7.Precautions for handling the OPC drum cartridge 1-8.Red painted Screws 1-9.Variable Resistors on Board 2.Maintenance Schedule NOTES Guideline for Life Specifications Values by Unit Detail of Each Unit Life Page 3.Maintenance And Cleaning (3)Replacement of the Paper Separating Roller Assy (5)Cleaning of the Transport Roller (6)Replacement of the Waste Tonner Bottle NOTE (7)Cleaning of the Areas around Waste Toner Collections Port (8)Cleaning of the Laser Lens Cover (9)Replacement of the Second Image Transfer Roller 4.Replacement of the Units (2)Replacement of the Image Transfer Belt Unit (3)Replacement of the Toner Cartridge (4)Replacement of the Fusing Unit 4-1.Disassembly Procedures Page 4-2. Pre-disassemblypreparation (3)magicolor 2300W procedures (4)Manual removal procedures Caution: 4-3.Removal Of Circuit Boards And Other Electrical Components (1)Removal of the Rear Cover 1. Remove the Rear Cover (2)To replace the Master Board (3)Removal of the Controller Board (4)Removal of the Power Unit (5)Removal of the High Voltage Unit (6)Removal of the Lower Feeder Control Board (7)Removal of the Duplex Unit Control Board 4-4.Removal of Units Page (3)Removal of the Fusing Unit (4)Removal of the Transport Unit Page (5)Removal of the Duplex Unit 1. Open The Right-sideDoor (6)Removal of the Lower Feeder 4-5.DISASSEMBLY OF THE ENGINE PARTS (3)Removal of the Ventilation Fan Motor (4)Removal of the Main Motor Assembly (5)Removal of the Rack Motor (6)Removal of the Turnover Motor And The Transport Motor (7)Removal of the Manual Feed Take-upSolenoid Page (8)Removal of the Transport Roller Solenoid (9)Removal of the Synchroning Roller Solenoid (10) Removal of the Second Image Transfer Roller Pressure Contact Solenoid (11) Removal of the Belt Cleaner Separation Solenoid (12)Removal of the Fusing Paper Loop Solenoid 1. Remove the Rear Cover (13) Removal of the AIDC sensor (14) Removal of the Manual feed tray (15) Disassembly of the Fusing Unit Notes for installation Page (16) Disassembly of the toner cartridge rack Page Page Page Page 1.Control Panel Descriptions—2300DL& 1-1.Names of control panel parts and their functions 1-2.Message Window Page (3) Status Messages magicolor 2300 DL Messages magicolor 2350 Messages Page 2.Menu Contents for magicolor 2300 DL 2-1.Print menu overview 2-2.Settings menus (4)Service menu (5)Network menu (6)Consumable Usage menu 2-3.Service Mode 2-4.Service mode displays 2-5.Entering service mode 2-6.Service mode options (3)RESET CONTROLLER (4)RESET COUNTER FUSER UNIT 3.Menu Contents for magicolor 3-1.Menu Overview Page 4.About the 2300W Control Panel 4-1.Control Panel Key 4-2.Indicator Lights 4-3.Working with the 2300W Status Display 4-4.Using the Status Display 4-5.Status, Error and Service Messages (2) Error Messages (3)Service Messages Page Page Page 1.Introduction 1-1.Checking the electrical components (3)Solenoid (4)Clutch (5)Motor 2.Paper Misfeeds 2-1.Perform initial check procedures 2-2.Paper misfeed displays 2-3.Wiring diagram of misfeed-detectingsensors 2-4.Misfeed detection timing and remedies (2)Paper misfeed in the Second image transfer section <Detection timing Paper misfeed in the fusing section or the paper (4)Paper misfeed in the paper feed-insection of the Second paper cassette (Tray2) 2300 DL & 2350 only Paper misfeed in the transport section, turnover section or storage section of the duplex unit Page Page Page 3-1.Malfunction detection timing and remedies (4)FATAL ERROR CODE 0CH / SERVICE CALL 0C PWR SUPPLY FAN: Malfunction of the power supply cooling fan motor (5)FATAL ERROR CODE 0EH / SERVICE CALL SUCTION FAN: Malfunction of the fusing cooling fan motor (7)FATAL ERROR CODE 14H / SERVICE CALL 14 XFER ROLLER: Incorrect pres sure by or separation from the Second image transfer roller (8)FATAL ERROR CODE 15H / SERVICE CALL 15 XFER BELT: Incorrect pressure by or separation from the transfer belt cleaner (9)FATAL ERROR CODE 16H / SERVICE CALL 16 XFER BELT: Incorrect transfer (11)FATAL ERROR CODE 18H /SERVICE CALL 18 FUSER UNIT: Faulty warm-updetected Page Page 3-2.Power supply malfunctions 4.Image Quality Troubleshooting