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Brother HL-1040, HL-820, HL-1020 manual Appendix 8. Main PCB Circuit Diagram, HL-1050, 2/5

Models: HL-1040 HL-820 HL-1020

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Troubleshooting Specifications Install Error codes Alarm Lamp Faulty registration Safety Alert Symbol Extension Support Wire Warranty Maintenance

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Appendix 8. Main PCB Circuit Diagram, (HL-1050), (2/5)

CODE	UK4041000

NAME	B512001CIR

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Brother HL-1040, HL-820, HL-1020 manual Appendix 8. Main PCB Circuit Diagram, HL-1050, 2/5

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Related pages All Diagram page Wiring diagram for Electrolux 69802 G

Contents

Page Page Preface Contents Chapter III Disassembly and Reassembly III-1 Chapter IV Maintenance and Troubleshooting Environment-Friendly High Resolution and Fast Printing SpeedVersatile Paper Handling Enhanced Memory Management Popular Printer Emulation Support for HL-1040/1050 onlyUSB Interface for HL-1050 only Optional Apple Macintosh Interface for HL-1040/1050 only CPU PrintingFunctions Electrical and Mechanical 820W or less Paper Loading Print Delivery Paper Effective Printing Area Printable area Monarch 228.6mm 304.8mm 203.2mm 296.3mm 12.7mm 12.0 11.66 Dots Manufacturedk Laser Safety 110 120V Model onlyFDA Regulations 110 120V Model only Valid General Block Diagram HL-820/1020 Chapter II Theory of Operation Shows a general block diagram of the HL-1040 printer HL-1040 Shows a general block diagram of the HL-1050 printer HL-1050 Main PCB Block Diagram HL-820/1020 Shows the block diagram of the main PCB II-5 II-6 Main PCB CPU Core HL-820/1020/1040 HL-1050 Asic HL-820/1020/1040 NMIFifo Scanint Cdcc / Boise / Data Extension Eeprom I/O Page USB Cdcc One output port and one I/O port are assigned II-13 Page 3 ROM HL-820/1020/1040 Dram HL-820/1020/1040 Optional RAM HL-1050 Optional Serial I/O HL-1040/1050 Eeprom HL-820/1020/1040 Reset Circuit HL-820/1020/1040 Cdcc I/O HL-820/1020/1040 22 shows the Cdcc interface circuit II-20 Engine I/O HL-820/1020/1040 23 shows the engine interface circuit II-21 24 shows the engine interface circuit II-22 Paper Feed Motor Drive Circuit HL-820/1020/1040 Power Supply Low-voltage Power Supply Panel Sensor PCB High-voltage Power Supply GND Paper Sensor Mechanics Overview of Printing Mechanism Paper Transfer Paper Supply Paper Registration Paper Eject Sensors Cover Sensor Toner Empty Sensor Cleaner Roller Drum Unit Photosensitive DrumPrimary Charger Development Roller Exposure Stage Developing Transfer Fixing Stage Drum Cleaning StageErasing Stage III-1 TAPTITE, CUP SScrew III-2 Bottom III-3 Output Tray AssyDrum Unit III-4 Top CoverRear Cover MP Sheet Feeder Assy III-5 Fixing Unit III-6 III-7 Scanner Unit III-8 III-9 Main PCB Assy Base Plate Assy Panel Sensor PCB Assy Low-voltage Power Supply PCB Assy High-voltage Power Supply PCB Assy Sub Fan Motor Assy Main Fan Motor Assy Drive Unit Main Motor Assy Sub Motor Assy Extension Support Wire Paper Support Packing Chapter IV Maintenance and Troubleshooting Initial Check Basic Procedure Periodical Replacement Parts Toner Cartridge Image Defects Image Defect Examples Troubleshooting Image Defects Light Dark PCB Completely blank All black Dirt on the back of paper Black and blurred vertical streaks Black and blurred horizontal stripes White vertical streaks Faulty registrationBlack vertical streaks in a gray background Poor fixing Image distortion Faint print White spots Black spots Black band Gray background Hollow print Downward fogging of solid black Horizontal lines Light rain Ghost Location of High-voltage Contacts and Grounding Contacts Location of Feed Roller Shaft and Grounding Contacts Paper JAM No AC power supplied No DC power supplied Main motor unrotated No paper supplied BD failure Insufficient output from high-voltage power supply unitFixing heater temperature failure Scanner failure Double feeding Wrinkles Incorporated Inspection Modes Lamp Type of inspectionPage Fuser Malfunction Service a Service B CPU Runtime ErrorError Codes 3 0 0 0 0 a N B Appendix 2. Connection Diagram, HL-820/1020 Appendix 3. Connection Diagram, HL-1040 Appendix 4. Connection Diagram, HL-1050 Code Appendix 6. Main PCB Circuit Diagram, HL-820/1020/1040, 2/2 Appendix 7. Main PCB Circuit Diagram, HL-1050, 1/5 Appendix 8. Main PCB Circuit Diagram, HL-1050, 2/5 Appendix 9. Main PCB Circuit Diagram, HL-1050, 3/5 Appendix 10. Main PCB Circuit Diagram, HL-1050, 4/5 Appendix 11. Main PCB Circuit Diagram, HL-1050, 5/5 Appendix 12. Panel Sensor PCB Circuit Diagram Low-voltage PS Circuit 220 C17 D13 D12 C22 R18 C11 R10 Power Supply PCB Circuit Diagram Appendix 18. HOW to Know Drum Unit Life & page Counter Print Test Print or Print Configuration How to Read the Drum Life How to Read the Page Counter Appendix 19. Diameter / Circumference of Rollers Parts Reference List REF.NO Code ’TY Description Symbol Remark B48K056 201A Contents 11-1 11-2 11-5 11-4 3. Main PCB HL-1040 OTHERS/ISRAEL 5. Main PCB HL-1050 OTHERS/ISRAEL Power Cords & Packing Drawing 12-2 12-3 12-4 12-1 Drive Unit MP Sheet Feeder Covers Main PCB ASSY, HL-820 SP MROM1050-EVEN Panel Sensor PCB High Voltage Power Supply Accessories Packing Materials Model LT-24CL REF.NO Code ’TY Description Remark Contents Lower Tray Unit REF.NO. Code QTY Description Remark Model Feb., 1999 54S004BE0 Page Preface Product Outline Regulations IEC 825 Specification for 220-240 V Model only For Finland and Sweden Safety Alert Symbol Introductory Information Hazardous Voltage Hazardous Powder Label Location Hot Caution Label Laser Caution Label Product Outline Specifications Environmental conditions Basic layout of printer set-up location Unpacking Installation Procedures Install the printer onto the lower tray unit Check the three alignment guide pins on the lower tray unit Remove the set-up guides R/L from the unit Connect the LT signal connector into the printer Install the covers Relocating the printer / Test print Maintenance Disassembly Paper Sensor PEL / OHP Sensor Ohpl Paper Feeding Roller / Separation Pad Clearing Paper Jams PR98235 REF.NO Code QTY Description Remark PR Driver Disk ASSY1, 820 WindowsPR Driver Disk ASSY1, 1020 Windows PR Driver Disk ASSY1, 1040 Windows 24 UL8516001 1 Extension Support Wire EL PCB UnitRubber Foot Chng 17 UL8508001 1 Insulation Sheet Base Plate 16 UL8508001 1 Insulation SheetMylar LABEL, MFC-P2000 Canada Mini Clamp Code Qtydescription Symbol Remark Fixing UnitsREF.NO Code Qtydescription Remark Fixing Unit Y, 120V SP REF.NO Code QTY Description Symbol Remark UH3419001 1 Heat Roller YS Assy SPMain PCB Assy Conductive Tape Cleaner Cleaner LegendMP Sheet Feeder Assy SP Fixing UNIT, 120V SP CLEANER, LEG Fixing UNIT, LEG 230V SPHeat ROLLER, LEG SP Main PCB ASSY, US SP CARTON, EUR HL-820 CARTON, can HL-1020CARTON, USA HL-1040 CARTON, can HL-1040 PR99057 Base Plate Quick Setup Guide For USA & Canada Only If you have comments or suggestions, please write us at Table of Contents Action 1 Check the Supplied Items Power Supply Environment Action 3 Install the Toner Cartridge/Drum Unit Action 4 Load Paper into Your Printer Paper Type Paper Size Secure the connection with the wire clips. ② Select Search for the best driver for your device Select CD-ROM drive Set the printer port to USB Troubleshooting Action 6 Plug in and Turn on Your Printer Printing a Test Sample For Windows 95/98/NT For Windows 3.1/3.11Page Action 7-3 Prepare Windows 3.1 for the Printer HL-1040 HP LaserJet IIP Installing the Remote Printer Console What Does Remote Printer Console Do? Using the Remote Printer Console Main Program Using the Printer Status Monitor Program Action 7-5 Prepare Macintosh for the Printer Only for HL-1040/1050 Users Data Toner Lamp Lamps and SwitchReady Paper Lamp Drum Lamp Alarm LampSwitch Other Control Features Sleep Mode Replacing the Toner Cartridge High Temperature Page Replacing the Drum Unit Do not remove the starter sheet Page Alarm Indications AT a Glance Operator Calls For HL-1040/1050 Drum Alarm Ready Service CallsDrum Alarm Ready Data Additional Memory HL-1050 Only Installing the Simm Printer Specifications Printing Functions Electrical and Mechanical Regulations Geräuschemission / Acoustic Noise Emission For Germany Only Important For Your SafetyImportant Wiring Information For U.K. only Void the Warranty Page Please read this manual thoroughly before using the printer HL-800/1000 Series Table of Contents Index Definitions of Warnings, Cautions, and Notes To Use the Printer Safely Shipment of the Printer BBS Internet Address Finding Out How to Use the Printer About the Guidebooks About Your Printer Printer Overview Features High Resolution and Fast Printing Speed HL-820 For HL-1040/1050 Only Remote Printer Console Program for DOS For HL-1040/1050 Only Popular Printer Emulation Support For HL-1050 Only USB Interface Enhanced Memory Management Environment-Friendly Economy Printing Mode Low Running Cost Operating and Storage Environment Page Paper Specifications Labels / Transparencies RemarksCut Sheet Special Paper Fan the Paper Straighten the Paper Envelopes Envelopes MULTI-PURPOSE Sheet Feeder Loading Paper into the Feeder Opening the Feeder Loading Paper or Envelopes in the Feeder Moving the Paper Guide Closing the Feeder Two Side Printing Manual Duplexing Manual Feed Slot When you load one sheet of paper manuallyWhen you load more than one sheet of paper manually USER’S Guide Output Tray and Paper Support Wire Opening the Output Tray Extending the Extension Support Wire Chapter Control Panel Data Toner Lamp Cancel printing Error RecoverySleep Mode Wake-up Drum Test Print ModeLamp Lit Choice Function Only Selecting the RS-422A Apple or RS-232C IBM Serial Interface Setting the Serial Interface Parameters Selecting the RS-422A Apple or RS-232C IBM Serial Interface Bits BitDTR only Off LocalTalk Connecting the Serial Interface CableNone Options Minimum Memory Recommendation including resident memory Installing the Simm Removing the Main Controller Board Options Chapter Maintenance Removing the Drum Unit Turning the Lever to Close the Shutter Removing the Old Toner Cartridge Turn the drum unit upside down gently Cleaning the Primary Corona Wire 11 Drum Unit Nearly at the End of its Life 12 Removing the Drum Unit Do not remove the starter sheet 14 Removing the Toner Cartridge 17 Installing the Drum Unit Cleaning the Printer Cleaning the Printer Exterior Cleaning the Printer Interior and Drum Unit 20 Turning off the Switch and Unplugging Gently wipe the scanner window with a soft dry cloth See the section Replacing the Drum Unit in Chapter 24 Removing the Drum Unit Assembly RE-PACKING the Printer 25 Placing the Drum Unit in the Plastic Bag Toner ↔ Alarm ↔Paper ↔ For HL-1050 only If the error occurs again, the interface hardware may be Service Call RAM error Service a Service B Paper Jams Locating Paper Jam Position Paper Jam in the Multi-Purpose Sheet Feeder Do Not Pull the Jammed Paper from the Output Tray Paper Jam near the Drum Unit or at the Paper Output Tray Paper Jam in the Fuser Unit Power switch is on Setting Up the Printer HardwareSetting Up the Printer for Windows For HL-1050 Setting Up the Printer for DOS For HL-1040/1050 Only Paper Handling Printing Printer cannot print full pages of a document. a Print Quality Together right now, over Toner scatters and stains the printed Printer Interior and Drum Unit Chapter Appendix Functions Electrical and Mechanical Parallel Interface Specifications Fig. A-1 Parallel Interface Cable Universal Serial BUS USB Interface HL-1050 only Resident Fonts HL-1040 Bitmapped FontsHL-1050 Bitmapped Fonts Scalable Fonts Intellifont Compatible Fonts Symbol SETS/CHARACTER Sets OCR Symbol Sets HL-1050 OnlyHP LaserJet IIP Mode HL-1040 HP LaserJet 6P Mode HL-1050 Epson Mode HL-1040/1050 IBM Mode HL-1040/1050 HP LaserJet IIP / HP LaserJet 6P HP LaserJet IIP/6P, Epson FX-850, IBM Propritner XL Appendix Trademarks Compilation and Publication Notice Industry Canada Compliance Statement For Canada Only International Energy Star Compliance Statement FDA Regulations For 110-120 V Model Only Laser Safety For 110-120 V Model OnlyRadio Interference 220-240 V Model Only IEC 825 Specification For 220-240 V Model Only EMC Lpa 70 dB a DIN 45635-19-01-KL2 Important Wiring Information For U.K. only Index 3-3

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