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Brother HL-1260 service manual Appendix 4. Main PCB Circuitry Diagram 2/8

Models: HL-1260

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Troubleshooting Specifications Install Error codes Main PCB Block Diagram Signal Description Error Symbol SET PS Switch Wire, Remote Switch Maintenance

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Appendix 4. Main PCB Circuitry Diagram (2/8)

CODE	UK2495000

NAME	B48K158/159CIR(2/8)

A-4

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Brother HL-1260 service manual Appendix 4. Main PCB Circuitry Diagram 2/8

Page 109 Page 111

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Contents

Laser Printer MODELHL-1260 Page Preface Chapter General Chapter III Electrical System Chapter V Maintenance and Servicing Iii Features Specifications Printing system Photosensitive drum OPC Envelope Effective printing areaPlain Paper OCR-A OCR-B RAM 2M bytes expandable to 26M bytes Safety Information Laser Safety 110 ~ 120V Model only Cdrh Regulations 110 ~ 120V Model only Additional Information Parts of the Printer External Views Cross Sectional View Storage of Unsealed EP-ED Cartridges Storage and Handling of EP-ED CartridgesStorage of Sealed EP-ED Cartridges Mechanical Configuration Basic Operations Main Drive Basic Sequence of Operations Timing for two consecutive prints on A4 paper Scanner driver Collimator lens Scanning mirror LASER/SCANNER SystemTo external device Main PCB Optical sensor Scanner motor Printing Process Image Formation SystemOutline Electrostatic latent image formation stage + + + Primary chargeScanning exposure Developing stage Development Reference Transfer stageTransfer Separation Fixing stage Drum cleaning stageDrum cleaning Fixing Operation PCB Paper PICK-UP/FEED System PCB Cassette Feed Stby Print MP Tray Feed Jam check Jam inside Paper Jam DetectionMain motor Pick-up solenoid Registration Sensor Main motor Paper feed Motor Registration Sensor Jam rear Main PCB Block Diagram Main PCB Video Controller Circuit SLOT1 4MB SLOT2 2MB SLOT3 1MB III Memory map Simm map B48K158 Engine Controller Circuit Main PCB Circuit Paper Feed Drive Circuit SW PCB Display Circuit LOW-VOLTAGE Power Supply Assy Protection Functions Low-Voltage Power Supply PCB Block Diagram HIGH-VOLTAGE Power Supply Assy 10 High-Voltage Power Supply Block Diagram 11 High-Voltage Power Supply Block Diagram Chapter IV Mechanical System Prinnter Disassembling Procedure Toner Cartridge Lid ConfigurationPrinter Body Side Cover L Upper cover assy, rear cover assy Font Cover AssyUpper Cover Assy, Rear Cover Assy Remove the side cover R by releasing the 4 hooks Side Cover RChangeover guide, jam remove cover Remove the Simm replace lid DC Fan MotorMain PCB Remove the MIO box Remove the main PCB assy Control Panel Unit Hooks Control panel unit Scanner Unit Cartridge Stopper Assy Paper Feed Chassis Unit Remove the spring from the separation pad assy Separation Pad AssyRemove the paper feed chassis unit MP PE Sub Actuator Side-Switch SpringPull out the size-switch spring Feed /Size-SW PCB Assy PE Sensor Actuator MP Regist sensor actuatorMP Paper Detection Actuator Remove the gear Loosen and pull out the 2 screws Tray Sensor HolderRoller Holder Paper Pick-up Roller Assy, Bearing Remove each solenoid by loosening their screw Paper Pick-up SolenoidPaper Feed Motor Assy MP Tray Cover MP Tray Assy Remove them from the paper feed guide lower by bending them Paper Path Separation Plate, Paper Path Separation FilmRemove the 2 fixing bushes Remove the MP tray assy Latch Loosen a screw and remove the fixing PCB assy Paper delivery actuator Fixing unit cover Transfer Unit PS Switch Wire, Remote Switch DC Gear Holder Assy Remove the PS switch wire Loosen the 2 screws on the side High-Voltage Power Supply PCBLow-Voltage Power Supply PCB Assy Loosen the 4 screws on the top Remove the toner cartridge from the body Toner Cartridge EP-ED CartridgePaper Tray Screws Tray gear holder Gear 56T link Without prior notice Periodical Replacement PartsConsumable Parts Standard Endurance Table Snap-ring pliers, ext List of Standard ToolsCompression spring scale List of Lubricants and Cleaners Introduction Initial Check Test Printing Basic ProcedureTest Printing and Mechanical Check Image Defects Image Defect Examples Troubleshooting Image Defects Light Dark All black Completely blank Polka dots Dirt on back of paper Check the toner image on the drum ErrorPossible cause Step Check Result Remedy Replace the fixing unit Dropout White vertical streaks Faulty registration Poor fixing Troubleshooting of Malfunctions No DC power supplied Step Check Result Remedy Upper cover Press the Mode switch and select Advanced mode Main PCBIs the pulse of 4KHz output? Buzzer 14 no Cartridge is displayed 16 Toner Empty is displayed Motor Malf is displayed The main motor rotation disabled High-voltage Yes Replace the high-voltage Off? On again? Scanner unit 17 41 Print Check is displayed Troubleshooting Paper Transport Problems Paper Jams 1b Paper pick-up block Oblique feed jam 1a Paper pick-up block Pick miss Instruct the user to use Clean the static-chargeStep Check Result Remedy Print Paper Recommended type of paper Incomplete Paper Feed Double feeding 3 4 5 6 7 Line Inspection Mode ProcedureOperation Press Switch to check the font cartridgeTurn off the power Flash memory check Replace the Dram on the Main PCB Replace the Simm Dram TestVideo Controller Dram Address Corresponding Table Status Message List Operator Call Messages Error Messages Error Message Meaning Action Card Full Error Turn off the printer. Wait Service Call MessagesService Call Message Meaning Action Appendix 1. Engine Block Diagram Appendix 2. Paper Feed/Size-SW PCB Circuitry Diagram 1/1 Appendix 3. Main PCB Circuitry Diagram 1/8 Appendix 4. Main PCB Circuitry Diagram 2/8 Appendix 5. Main PCB Circuitry Diagram 3/8 Appendix 6. Main PCB Circuitry Diagram 4/8 Appendix 7. Main PCB Circuitry Diagram 5/8 Appendix 8. Main PCB Circuitry Diagram 6/8 Appendix 9. Main PCB Circuitry Diagram 7/8 Appendix 10. Main PCB Circuitry Diagram 8/8 Appendix 11. Control Panel PCB Circuitry Diagram 1/1 Appendix 12. Scanner LD PCB Circuitry Diagram 1/1 Laser Printer Page Preface Storage and Handling of EP-ED Cartridges Refer to HL-1260 P.III-9 List of Lubricants and Cleaners Chapter I General ISO LetterLegal Executive COM-10 B5 ISO OCR-A OCR-B 4M bytes expandable to 66M bytes Safety Information Additional Information HL-1660 Paper PICK-UP/FEED System MP Tray Feed Main motor Pick-up solenoid Registration Sensor Stby Print Jam rear Font Cartridge IC Card Pcmcia Asic HG51CS265FD SLOT1 4MB SLOT2 1MB ROMOA, OB, 1A, 1B ROM1B Main PCB HL-1260e Main PCB HL-1660 PCB Circuit Main PCB Chapter IV Mechanical System Printer Disassembling Procedure Screws yellow Simm replace lid Remove the main PCB assy Scanner Unit Scanner fan motor Paper Tray Number of print Malfunction of control panel LED lamps No DC power suppliedMalfunction of LCD display on the control panel Cover Open is displayed even if the upper cover is closed Malfunction of control panel switchesMalfunction of buzzer 14 no Cartridge is displayed Step Check Result Remedy Motor Malf is displayed The main motor rotation disabled No paper pick-up from cassette or MP tray Reference Value 14 50 Fuser Malf is displayed 16 52 Scanner Malf is displayed 17 41 Print Check is displayed Upper cover Close the cover. See M-6 Printer is open Wrong size of paper was Load the requested size Error Messages Equipping LT for 1260/e Use LT for HL-1660 Equipping DX for 1260/e Use DX for HL-1660 Error Turn off the printer. Wait a Service Service Software1 Trap Turn off the printer. Wait a Scanner Unit Appendix 3. Main PCB Circuitry Diagram 1/7 Appendix 4. Main PCB Circuitry Diagram 2/7 Appendix 5. Main PCB Circuitry Diagram 3/7 Appendix 6. Main PCB Circuitry Diagram 4/7 Appendix 7. Main PCB Circuitry Diagram 5/7 Appendix 8. Main PCB Circuitry Diagram 6/7 Appendix 9. Main PCB Circuitry Diagram 7/7 Appendix 11. Scanner LD PCB Circuitry Diagram 1/1 Paper Feeder PR99087 Release Plate L ADD Paper Feeder Release Plate L ADD No. PR98202 / PR99087 Model HL-1660e 54T-U03-630 NO. PR98202 / PR99087 TI NO. PR99087 087320616 UH1835001UH1565001 085310815 TI no -P049 / PR99087 ADD LT-2000 54T UH2905000 UH2901001UH2952001 UH2906000 Parts Reference List B48K056 201 a Revision No. marked on a printed circuit board Contents Power Cords & Harnesses Power Cords & Harnesses Control Panel TI No.96-P035 / PR98309 Control Panel REF.NO Code QTY Description Symbol Remark B48K234 TI No.96-P013 /96-P046 Main PCB, Others TI No.PR97114 Main PCB, Israel TI No.96-P013 / 96-P046 Main PCB, Israel TI No. PR97114 TI No.96-P033 HIGH-VOLTAGE Power Supply Covers Covers REF.NO. Code QTY Description Remark Paper Tray TI No.96-P077 / 97-P021 TAPTITE, CUP S M3X10 TI no -P049 / PR97037 / PR97131 / PR98202 Paper Feeder REF.NO Code QTY Description Remark TI No.96-P018 TI No.PR97148, PR98054, PR98061 SCN Harness 4P Packing Materials TI No.96-P044 / 97-P009 Documents NO. PR98047 TI no -P06643-D,N,O Adjusting Tool KIT Tool no Tool Name Remark USER’S Guide Brother Laser Printer Trademarks Compilation and Publication HL-1260e/HL-1660 Laser Printer Definitions of Warnings, Cautions, and Notes Table of Contents Before Working with the Printer Switches in Normal Mode Options Appendix-1 Index Important Information Regulations Important About the Interface Cable Laser Safety 110-120 V model only Cdrh Regulations 110-120 V model only Radio Interference220-240 V model only IEC 825 220-240 V model only For Your Safety Wiring Information For U.K. only Green and Yellow Earth Blue Neutral Brown Live Declaration of Conformity Europe Chapter General About this Manual USER’S Guide About Chapters on the Floppy Disk For Windows 3.1 user Features About this Printer Automatic Interface Selection Universal Paper Cassette and Manual LoadingThree Interfaces Five Emulation Modes Memory Expansion Automatic Emulation SelectionData Compression Technology Scalable and 12 Bitmapped Fonts OCR-A OCR-B High Speed Printing with Microsoft Windows 95 / Windows Power Save ModeToner Save Mode Bar Code Print Flash Memory Card and HDD Card Saving User SettingsReprint Function Options Printer Carton Before Using the PrinterChecking the Components Toner Cartridge Toner Cartridge General View Front View Environment Power SupplyOperating and Storage Environment Setting UP the Printer Opening and Closing the Printer Removing the Protective Parts Removing the Protective Parts Installing the Toner Cartridge No Cartridge 10 Rocking the Toner Cartridge 12 Pulling Out the Sealing Tape Toner Empty Loading Paper in the Paper Cassette 14 Removing the Paper Cassette 15 Switching the Adjustment lever by Paper Size 17 Adjusting the Paper Cassette Sizes Getting Started 20 Placing Paper on the Multi-purpose Tray Connecting the Printer to Your Computer 21 Connecting the Printer and Computer Plugging in the Power Cord Turning the Printer On and Off LJ Ready 001P T1 Pressing the Power SwitchSelf Test Printing the Test Patterns or Lists Print Fonts C Print Fonts P ABC Checking the Printed Test Pattern or Demo Chapter Before Working with the Printer Software Compatibility USER’S Guide BS Idle Automatic Emulation SelectionLJ Ready GL Ready USER’S Guide Automatic Interface Selection OFF USER’S Guide Adjusting the Control Panel Angle About the Control Panel Selecting the Local Language Display Using the Panel Switches Switch Operation in Normal and Shift Modes Factory Settings Printer SettingsUser Settings Paper Size Paper HandlingPrint Media USER’S Guide Using Envelopes Envelope Information Envelopes Cassette Feed Load Paper Manual Feed Cassette Feed Face Down Print Delivery Face Up Print Delivery Display and Lamps Display Sleep IdleBusy Print Reset to User Settings FF Pause Lamps Data Switches in Normal Mode SEL Switch SET Switch UP or Down Switch Mode Switch Interface Mode =PARALLEL High SPEED=ON Format Mode Orientation ORI=PORTRAIT Card List Mode Switch Settings in BR-Script 2 Mode Error Print Error PRINT=OFF Mode Switch Settings in HP-GL Mode Graphics Mode PEN Setting SETTING=PEN1 Legal Basic Operation Procedures =OPTION =AUTO=PARALLEL Operation Example Selecting the Parallel Interface Interface Mode High SPEED=ON BI-DIR=ON Dtrer =ON Robust Xon =OFF Format Mode ORI=PORTRAIT Auto Wrap =OFF Auto LF =OFFAuto CR =OFF Auto Skip =ON Format Mode Right M = 80C P Paper =LETTERLeft M TOP M USER’S Guide Graphics Mode Character SET PEN SettingSETTING=PEN1 Ansi Ascii Standard SETAlternate SET HRC Setting ResolutionAPT Setting Setting HRC =OFF APT =OFFAPT =ON HRC =LIGHT Protection Print Overrun PROTECT=A4 PROTECT=AUTOPROTECT=LETTER PROTECT=LEGAL Format Card Delete Card ListSave Primary Font Save DataSave Macro Download Font SET KEY -- END Macro ID=##### USER’S Guide Font ID=##### Delete the selected ID macro Auto FF=ON SET--DELETE ALLLock PANEL=OFF FF SUPPRESS=OFF Pass NO= LOCK=OFFLOCK=ON Incorrect Auto FF=OFF Wait TIME= 1s Error Print FONT=ALL BUZZER=ONBUZZER=OFF FONT=LJ4 Print Density Save Settings Counter Setting the Font and Symbol Set in the HP LaserJet 4+ Mode Font SwitchSymbol SET Secondary Font Primary Font Secondary Font Slotfont B Internal FontSlotfont Permanent Font Brougham Reg p PITCH= Roman Select Font Table Print Internal Font Brougham Brougham Reg PITCH= US Ascii OCR-A BR SymbolLettergothic OCR-B ISO LATIN5 French ISO LATIN1 GermanISO LATIN2 UK Ascii Danish Form Feed Switch Reprint Switch Form Feed USER’S Guide Continue Switch Switches in Shift Mode Shift Switch HP-GL Emulation SwitchAuto Epson FX-850 EPSON/IBM=EPSON Keep PCL=OFF About Emulation Modes USER’S Guide Toner SAVE=ON Economy SwitchToner SAVE=OFF Feeder Switch FEEDER=TRAY2 FEEDER=MP TrayFEEDER=TRAY1 AUTO=T1MP MP First MP Tray Setting MP SIZE=LETTER Paper IN=CONT Media Type BIND=LONG RegularDUPLEX=OFF Binding Copy Switch Copy PAGES= Reset Setting Reset SwitchReset Printer Factory Settings Reset to Factory Settings Reset to User SettingsReset to Setting # List of Factory Settings Mode Interface Mode =AUTO EPSON, & IBM Paper Left M Right M TOP M Bottom M Offset OFFSET=0 Input Buffer Counter Toner Save Mode Toner SAVE=OFF Power Save Mode Power SAVE=ON Test Switch Demo Print Fonts HEX Dump Mode Control Panel Lower Tray Unit LT-1200/LT-1600 Loading Paper from the Lower Paper Cassette Font CARTRIDGE/CARD, Flash MEMORY/HDD Card MCM33708DFB Selecting the Optional Fonts See Printing the Test Pattern or Font List in Chapter Find the font slot and font ID number on the list Installing the MIO Card Modular I/O Card RAM Expansion Mitsubishi MH1M32ADJ-7 Removing the Left Side Cover Installing the SIMMs Duplex Unit DX-1200/DX-1600 For Duplex Toner Empty Message MaintenanceToner Cartridge Replacing the Toner Cartridge Cleaning the Anti-Static Teeth USER’S Guide Cleaning Cleaning the Printer Exterior Cleaning the Printer Interior Cleaning the Paper Cassette Cleaning the Paper Access Cover Transfer Guide Troubleshooting Operator Call Messages No DX Unit Manual FeedCheck Font No DX Tray Line Error Error MessagesBuffer Error Memory Full MIO Error Card W ErrorSimm Error XX Size Error Service Call Messages Possible Problems Paper Jam JAM Rear Paper Jam at Paper Exit Paper Jam at Rear Access Cover JAM Inside Paper Jam at Fixing Roller Paper Jam at the Paper Access Cover Inside the Printer JAM Trays Paper Jam at Paper Cassette Unsatisfactory Printouts White Stripes or Faint Images Removing the Toner Cartridge 10 Distributing the Toner Evenly 11 Dark Stripes or Toner Stains 12 White Spots Black HRC = OFF HRC = Medium BBS Printer Specifications Printing Functions CPU Electrical and Mechanical Paper Specifications Option Paper Paper Types to Avoid Labels and Overhead Transparencies Bi-directional Parallel Interface Interface SpecificationsInterface Connector Pin Assignment Signal Description Acknlg OUT Signal Printer Pin No Computer Pin No RS-232C Serial Interface Standard SpecificationsInterface Connectors Signal Name IN/OUT Explanation Frame Ground Printer Male SYMBOL/CHARACTER Sets OCR Symbol Sets HP LaserJet 4+ Mode PC-8 10U PC-8 D/N 11U PC-850 12U PC-852 17U Appendix-17 Legal 1U Ventura Math 6M Ventura Intl 13J Ventura US 14J PS Math 5M PS Text 10J Math-8 8M Pi Font 15U MS Publishing 6J Windows 3.0 9U Desktop 7J MC Text 12J Symbol 19M Windings 579L Epson Mode US Ascii PC-8 PC-8 D/N PC-850 PC-852 PC-860 PC-863 PC-865 PC-8 Turkish IBM Mode Appendix-26 HP-GL Mode FRENCH/GERMAN Scandinavian SPANISH/LATIN JIS Ascii ROMAN8 EXT ISO IRV ISO Swedish ISO Swedishn ISO Norway ISO German ISO French ISO U.K ISO Italian ISO Spanish ISO Portuguese ISO Norway These symbol sets are variations of the Roman-8 symbol set Appendix-33 Appendix-34 Appendix-35 Quick Reference of Commands PCL Command Sets Appendix-37 Appendix-38 Appendix-39 Appendix-40 Appendix-41 Appendix-42 Appendix-43 Appendix-44 Appendix-45 Appendix-46 Appendix-47 Appendix-48 Ccitt G3/G4 and Tiff original command Appendix-50 APT Horizontal 1200-dpi Image Format ModeRaster Graphic Mode @PJL Enter Language = PCL Block data is composed as follows Appendix-54 HP-GL/2 Command Sets Bezier Relative Appendix-56 Printer Job Language Commands Syntax DEC HEX Epson FX-850 Mode BEL Appendix-59 Appendix-60 IBM Proprinter XL Mode Appendix-62 Appendix-63 Appendix-64 Appendix-65 Bar Code Control Print Bar Codes or Expanded Characters Appendix-67 Appendix-68 Isbn UPC-E Appendix-70 Check digit FIM Lprint CHR$12 END Index Index-2 Paper access cover Symbol set 4-60,Appendix-14

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