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HP 5L, 6L manual Top Assemblies, Laser/Scanner Assembly Removal

Models: 5L 6L

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Top Assemblies

Laser/Scanner Assembly

1Remove the Printer Covers.

2Remove both Laser/Scanner connectors (Figure 6-20, callout 1).

3Remove all (4) screws and lift the assembly straight off (Figure 6-20, callout 2).

N o t e	One of the four screws is longer than the other three. Upon reinstallation, the longer
	screw must be replaced in its original location.
Figure 6-20
Figure 6-20

Laser/Scanner Assembly Removal

6 - 24 Removal and Replacement

Image 97

HP 5L, 6L manual Top Assemblies, Laser/Scanner Assembly Removal

Contents

Page HP LaserJet 5L HP LaserJet 6L C3941A C3990A Warranty Conventions Chapter Descriptions Here are required statements regarding RFI and laser safetyList of Figures Figure B-1 Vcci Statement Japan List of Tables Viii Product Information ContentsProduct Information Printer Features Printer FeaturesFeatures Descriptions Paper Capacities and SizesModel and Serial IdentificationHP LaserJet 5L Model and Serial Numbers HP LaserJet 6L Model and Serial Numbers Performance Specifications SpecificationsElectrical Specifications Acoustic EmissionsFront/Side Views of the Printer Product OverviewFront Door Assemblies Back View of the Printer Parts Exchange Program Service ApproachOrdering Parts Ordering ConsumablesDescription Related DocumentationTechnical Assistance Online Services forNorth American Response Center Worldwide SupportWarranty Exclusions WarrantyVoltage Conversions Warranty LimitationsProducts sold within one country to another country Regulatory requirementsProduct Information Site Requirements Site Requirements Site Requirements Consider the following points before installing the printerOperating Environment Environmental RequirementsDescription Dimension Printer Space Requirements Printer DimensionsPrinter Space Requirements Storage Conditions HP C3906A/F Toner CartridgeStoring Opened Toner Cartridges Toner Cartridge Distribution Toner Cartridge Handling SuggestionsOperating Overview Operating Overview Control Panel Layout Using the Control PanelWhen this Indicator Indicator Lights 1LED Lights It means this Do thisHardware Error There is an Indicator Lights 2Front Panel Button Usage Front Panel ButtonFunction Lights Action Result Self-test Page for HP LaserJet 5L Printing a Self-TestSelf-test Page for HP LaserJet 6L To print a self-testPrinter’s rated speed Continuous Self TestRefer to Engine Test in for the engine test procedure Useful for checking and adjusting registrationPrinting an Engine Test Engine Test ButtonTo Reset the Printer Resetting the PrinterOperating Overview Printer Maintenance Printer Maintenance Life Expectancy of Consumables Life Expectancy of ConsumablesSaving Toner with EconoMode Toner Cartridge LifeToner cartridge box Five Percent Text CoverageRefilled Toner Cartridges Some software applications may refer to this as draft modeRecycling Toner Cartridges InformationCleaning the Printer Contaminants on the roller can cause print quality problems Cleaning Printer ComponentsCleaning Printer Components Stains into fabric Cleaning Spilled TonerFunctional Overview Functional Overview Basic Printer Functions Printer Functional Block DiagramDC Controller Loads DC Controller/Power SystemLaser and Scanner Drive Print Engine Control SystemPower System on DC Controller PCA T e Functional Overview Control Panel Resolution Enhancement REtEconoMode EconoMode vs Normal ModeMemory Enhancement technology MEt Functional Overview 5 Image Formation System Image Formation Block DiagramToner Cartridge Drum CleaningDrum Conditioning Image WritingImage Developing Image FusingImage Transferring Paper Feed System Simplified Paper Path Name Description Solenoid and Sensors Solenoid and PhotosensorsPaper Jam Detection Basic Sequence of Operation Refer to Timing Diagram on the nextPrinter Timing Period Timing PurposeGeneral Timing Diagram HP LaserJet 5L General Timing Diagram HP LaserJet 6L Functional Overview Removal and Replacement Removal and Replacement Removal and Replacement Strategy Removal and Replacement MByte card MByte total Installing Memory Cards DramCovers and Doors Ease of replacementBack Cover Remove the 3 screws -2, calloutBack Cover Removal 2 Make certain the Input Extender is upEP Door Assembly Removal EP Door AssemblyMemory Door Removal Memory DoorMain Cover and Paper Input Assembly Removal Main Cover and Paper Input AssemblyRemove the toner cartridge Remove memory door Without removing the memory doorControl Panel Removal Internal AssembliesExit Roller Removal Exit Roller AssemblyDelivery Assembly Removal 1 Delivery AssemblyDelivery Assembly Removal 2 Fuser Pressure Plate Removal Fuser Pressure PlateFuser Pressure Plate Replacement Heating Element Removal 1 Heating ElementHeating Element Removal 2 Lift the Heating Element out Make sure the connectors are properly reattachedHeating Element Removal 3 On the right side of the shaft. Refer to for a part number Pressure RollerPressure Roller Guide Removal Face-Up/Face-Down Lever Face-Up/Face-Down Lever ReplacementUnchanged. -17 shows the lever from an HP LaserJet 5L Release mechanismShows the white tab from an HP LaserJet 5L Fuser Exit Roller AssemblyFuser Exit Roller Removal Paper Exit Sensor Flag Replacement Reinstalled to exactly this positionPaper Exit Sensor Flag Laser/Scanner Assembly Removal Laser/Scanner AssemblyTop Assemblies Solenoid Removal 1 SolenoidSolenoid Removal 2 Only one wayPickup Roller Assembly Removal 1 Pickup Roller AssemblyPickup Roller Assembly Removal 2 Paper Pickup Roller Assembly Replacement Inside/Front View Assembly FigurePaper Feed Frame Removal 1 Paper Feed FramePaper Feed Frame Removal 2 Paper Feed Frame Removal 3 Paper Feed Frame Removal 4 Release the sensor unit connector FigureTransfer Roller Guide & Transfer Roller Kick Plate Removal Kick PlateKick Plate Spring Replacement Separation Pad Removal Separation PadAt the same time SubpadsPlace your index finger on the subpad Press toward the top of the printerFeed Assembly Removal 1 Feed AssemblyFeed Assembly Removal 2 Remove the Feed AssemblyFeed Assembly Removal 3 Memory Door Guide Bottom AssembliesMemory Door Guide Removal Motor Removal MotorDC Controller Removal 1 DC ControllerDC Controller Removal 2 ESD SensitiveDC Controller Removal 3 Correct pieces should you need to replace them Formatter PCAFormatter Board Removal Removal and Replacement Troubleshooting Troubleshooting Start General Troubleshooting FlowchartExit Paper Path and Components Paper Path and ComponentsDC Controller Diagram Priority of Errors Printer Error Troubleshooting∙ Status Messages ∙ Service and Error Messages PersistsPrinter Status Messages 1 Printer Status MessagesLEDs Description Recommended Action Unclearable Error Happens, troubleshoot using -3 belowPrinter Status Messages 2 Service and Error Messages 1 Service and Error MessagesBeam Error. There are a number of causes Formatter Error Service and Error Messages 3Check the Toner Cartridge Image Formation TroubleshootingOz grams ∙ Replace the DC Controller Image Defect ExamplesVertical Lines ∙ Your paper may not meet the requirements for the printer Character VoidsDropouts Is completely blank. If you get occasional blank pages ∙ Replace the DC Controller TroubleshootingWhite Horizontal Line Distorted Image or BD Failure Engine Test Troubleshooting ChecksEngine Test Troubleshooting Drum Rotation Functional Check High-Voltage Power Supply Check High-Voltage Power Supply CheckToner Cartridge High Voltage Connection Points 1 Checks ActionToner Cartridge High Voltage Connection Points 2 Paper Curl Paper Curl TroubleshootingPossible Cause Recommended Action Paper Path Check Troubleshooting ToolsRemove the Printer Covers Figures 6-2, 6-3, Overriding PS204 and SW101Repetitive Image Defect Ruler Repetitive Image Defect RulerTroubleshooting Main Wiring DiagramCable Pinouts Connector Signal Name RemarksFrsth Troubleshooting Parts and Diagrams Parts and Diagrams How to Use the Part Lists and Diagrams Parts and cannot be ordered through SMO Accessories and Supplies Accessories and SuppliesProduct Number Description Example Description Common HardwareMajor Assembly Locations Covers and Doors Qty Description Internal Components 1 LaserJet 5L Part No Internal Components 2 LaserJet 5LPart No Internal Components 3 Parts and Diagrams DC Controller/Formatter and Cables DC Controller Case Pickup Roller Assembly Parts and Diagrams Feed Assembly Parts and Diagrams Separation Guide Assembly Parts and Diagrams Delivery Assembly Parts and Diagrams Parts and Diagrams Parts Index A-1 Parts IndexParts Index Alphabetical Parts ListParts Index Index Parts Index A-3Parts Index Parts Index A-5 501/502 Numerical Parts Index Parts Index A-7Numerical Parts List Parts Index A-9 Parts Index Parts Index A-11 Parts Index Regulatory Information Laser Safety U.S.ARegulatory Information Laser Statement FinlandOzone Emission Toner SafetyRegulatory Information B-3 Figure B-1 FCC Statement Class BFuser Accordian Jams Service Notes C-1C3941A-01 Solution Service NotesFuser Jam Clearing Countermeasure Service Notes C-3C3941A-02A Service Notes Index-1 IndexIndex-2 Index-3 SafetyIndex-4 C3990-90991