General Timing Diagram HP LaserJet 5L | HP 6L instruction

Figure 5-7

General Timing Diagram - HP LaserJet 5L

5 - 20 Functional Overview

Image 71

HP 6L manual General Timing Diagram HP LaserJet 5L

Contents

Page HP LaserJet 5L HP LaserJet 6L C3941A C3990A Warranty Conventions Chapter Descriptions Here are required statements regarding RFI and laser safety List of Figures Figure B-1 Vcci Statement Japan List of Tables Viii Product Information Contents Product Information Paper Capacities and Sizes Printer FeaturesPrinter Features Features Descriptions HP LaserJet 5L Model and Serial Numbers IdentificationModel and Serial HP LaserJet 6L Model and Serial Numbers Acoustic Emissions SpecificationsPerformance Specifications Electrical Specifications Front/Side Views of the Printer Product Overview Front Door Assemblies Back View of the Printer Ordering Consumables Service ApproachParts Exchange Program Ordering Parts Description Related Documentation Technical Assistance Online Services for North American Response Center Worldwide Support Warranty Exclusions Warranty Regulatory requirements Warranty LimitationsVoltage Conversions Products sold within one country to another country Product Information Site Requirements Site Requirements Environmental Requirements Consider the following points before installing the printerSite Requirements Operating Environment Printer Space Requirements Printer Space Requirements Printer DimensionsDescription Dimension Storing Opened Toner Cartridges HP C3906A/F Toner CartridgeStorage Conditions Toner Cartridge Distribution Toner Cartridge Handling Suggestions Operating Overview Operating Overview Control Panel Layout Using the Control Panel It means this Do this Indicator Lights 1When this Indicator LED Lights Hardware Error There is an Indicator Lights 2 Function Lights Action Result Front Panel ButtonFront Panel Button Usage Self-test Page for HP LaserJet 5L Printing a Self-Test Self-test Page for HP LaserJet 6L To print a self-test Printer’s rated speed Continuous Self Test Engine Test Button Useful for checking and adjusting registrationRefer to Engine Test in for the engine test procedure Printing an Engine Test To Reset the Printer Resetting the Printer Operating Overview Printer Maintenance Printer Maintenance Life Expectancy of Consumables Life Expectancy of Consumables Five Percent Text Coverage Toner Cartridge LifeSaving Toner with EconoMode Toner cartridge box Information Some software applications may refer to this as draft modeRefilled Toner Cartridges Recycling Toner Cartridges Cleaning the Printer Cleaning Printer Components Cleaning Printer ComponentsContaminants on the roller can cause print quality problems Stains into fabric Cleaning Spilled Toner Functional Overview Functional Overview Basic Printer Functions Printer Functional Block Diagram DC Controller Loads DC Controller/Power System Laser and Scanner Drive Print Engine Control System Power System on DC Controller PCA T e Functional Overview Control Panel Resolution Enhancement REt Memory Enhancement technology MEt EconoMode vs Normal ModeEconoMode Functional Overview 5 Image Formation System Image Formation Block Diagram Image Writing Drum CleaningToner Cartridge Drum Conditioning Image Transferring Image FusingImage Developing Paper Feed System Simplified Paper Path Name Description Solenoid and Sensors Solenoid and Photosensors Paper Jam Detection Period Timing Purpose Refer to Timing Diagram on the nextBasic Sequence of Operation Printer Timing General 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 Dram Remove the 3 screws -2, callout Ease of replacementCovers and Doors Back Cover Back Cover Removal 2 Make certain the Input Extender is up EP Door Assembly Removal EP Door Assembly Memory Door Removal Memory Door Without removing the memory door Main Cover and Paper Input AssemblyMain Cover and Paper Input Assembly Removal Remove the toner cartridge Remove memory door Control Panel Removal Internal Assemblies Exit Roller Removal Exit Roller Assembly Delivery Assembly Removal 1 Delivery Assembly Delivery Assembly Removal 2 Fuser Pressure Plate Removal Fuser Pressure Plate Fuser Pressure Plate Replacement Heating Element Removal 1 Heating Element Heating Element Removal 2 Heating Element Removal 3 Make sure the connectors are properly reattachedLift the Heating Element out Pressure Roller Guide Removal Pressure RollerOn the right side of the shaft. Refer to for a part number Release mechanism Face-Up/Face-Down Lever ReplacementFace-Up/Face-Down Lever Unchanged. -17 shows the lever from an HP LaserJet 5L Fuser Exit Roller Removal Fuser Exit Roller AssemblyShows the white tab from an HP LaserJet 5L Paper Exit Sensor Flag Reinstalled to exactly this positionPaper Exit Sensor Flag Replacement Top Assemblies Laser/Scanner AssemblyLaser/Scanner Assembly Removal Solenoid Removal 1 Solenoid Solenoid Removal 2 Only one way Pickup Roller Assembly Removal 1 Pickup Roller Assembly Pickup Roller Assembly Removal 2 Paper Pickup Roller Assembly Replacement Inside/Front View Assembly Figure Paper Feed Frame Removal 1 Paper Feed Frame Paper Feed Frame Removal 2 Paper Feed Frame Removal 3 Paper Feed Frame Removal 4 Release the sensor unit connector Figure Transfer Roller Guide & Transfer Roller Kick Plate Removal Kick Plate Kick Plate Spring Replacement Separation Pad Removal Separation Pad Press toward the top of the printer SubpadsAt the same time Place your index finger on the subpad Feed Assembly Removal 1 Feed Assembly Feed Assembly Removal 2 Remove the Feed Assembly Feed Assembly Removal 3 Memory Door Guide Removal Bottom AssembliesMemory Door Guide Motor Removal Motor DC Controller Removal 1 DC Controller DC Controller Removal 2 ESD Sensitive DC Controller Removal 3 Formatter Board Removal Formatter PCACorrect pieces should you need to replace them Removal and Replacement Troubleshooting Troubleshooting Start General Troubleshooting Flowchart Exit Paper Path and Components Paper Path and Components DC Controller Diagram Persists Printer Error TroubleshootingPriority of Errors ∙ Status Messages ∙ Service and Error Messages LEDs Description Recommended Action Printer Status MessagesPrinter Status Messages 1 Printer Status Messages 2 Happens, troubleshoot using -3 belowUnclearable Error Service and Error Messages 1 Service and Error Messages Beam Error. There are a number of causes Formatter Error Service and Error Messages 3 Oz grams Image Formation TroubleshootingCheck the Toner Cartridge ∙ Replace the DC Controller Image Defect Examples Vertical Lines ∙ Your paper may not meet the requirements for the printer Character Voids Dropouts Is completely blank. If you get occasional blank pages ∙ Replace the DC Controller Troubleshooting White Horizontal Line Distorted Image or BD Failure Engine Test Troubleshooting ChecksEngine Test Troubleshooting Drum Rotation Functional Check Checks Action High-Voltage Power Supply CheckHigh-Voltage Power Supply Check Toner Cartridge High Voltage Connection Points 1 Toner Cartridge High Voltage Connection Points 2 Possible Cause Recommended Action Paper Curl TroubleshootingPaper Curl Overriding PS204 and SW101 Troubleshooting ToolsPaper Path Check Remove the Printer Covers Figures 6-2, 6-3, Repetitive Image Defect Ruler Repetitive Image Defect Ruler Troubleshooting Main Wiring Diagram Cable Pinouts Connector Signal Name Remarks Frsth Troubleshooting Parts and Diagrams Parts and Diagrams How to Use the Part Lists and Diagrams Parts and cannot be ordered through SMO Product Number Description Accessories and SuppliesAccessories and Supplies Example Description Common Hardware Major 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 Index Parts Index Alphabetical Parts ListParts Index Index Parts Index A-3 Parts Index Parts Index A-5 501/502 Numerical Parts Index Parts Index A-7 Numerical Parts List Parts Index A-9 Parts Index Parts Index A-11 Parts Index Regulatory Information Laser Safety U.S.A Regulatory Information Laser Statement Finland Regulatory Information B-3 Toner SafetyOzone Emission Figure B-1 FCC Statement Class B C3941A-01 Service Notes C-1Fuser Accordian Jams Solution Service Notes C3941A-02A Service Notes C-3Fuser Jam Clearing Countermeasure Service Notes Index-1 Index Index-2 Index-3 Safety Index-4 C3990-90991