General Timing Diagram | HP 5L (C3941A) guide

Figure 5-7

General Timing Diagram

5 - 20 Functional Overview

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HP 5L (C3941A) manual General Timing Diagram

Contents

HP LaserJet 5L C3941A Warranty Conventions Chapter Descriptions Product Information List of Figures Figure B-1 Vcci Statement Japan List of Tables Viii Contents Product Information Product Information Paper Capacities and Sizes Printer FeaturesPrinter Features Paper Capacities and Sizes HP LaserJet 5L Model and Serial Numbers IdentificationModel and Serial Electrical Specifications SpecificationsPerformance Specifications Category Specification Product Overview Front/Side Views of the Printer Front Door Assemblies Back View of the Printer Ordering Parts Service ApproachParts Exchange Program Ordering Consumables Related Documentation Description Technical Assistance HP CompuServe Forum North American Response Center Customer Information Centers North America OnlyCustomer Support Center Assist Line Warranty Warranty Exclusions Warranty Limitations Voltage Conversions Site Requirements Site Requirements Environmental Requirements Site RequirementsOperating Environment Operating Storage Printer Space Requirements Printer Space Requirements Printer DimensionsDescription Dimension Storing Opened Toner Cartridges HP C3906A Toner CartridgeStorage Conditions Toner Cartridge Handling Suggestions Toner Cartridge Distribution Installation and Configuration Installation and Configuration Choose the best location Unpacking and InstallationCheck package contents Unpack the printer Install printing software Install the toner cartridgeAttach the power cord Load paper Host-Based Printer Driver Minimum System Requirements Host-Based Printer Settings Host-Based Printer Settings Options PCL Printer Driver Host-Based Printing Status PCL Printer Settings PCL Printer Settings Options Using Host-Based and PCL Drivers Together PCL Printing Status Using the Control Panel Control Panel Layout LED Lights Indicator Lights 1When this Indicator It means this Do this Indicator Lights 2 Hardware Error There is an Function Action Lights Result Front Panel ButtonFront Panel Button Usage Printing a Self-Test Self-test Continuous Self Test Printing an Engine Test Engine Test Button Resetting the Printer To Reset the Printer Installation and Configuration Printer Maintenance Printer Maintenance Description Est Life Remarks Pgs Life Expectancy of ConsumablesLife Expectancy of Consumables Five Percent Text Coverage Toner Cartridge LifeSaving Toner with EconoMode Refilled Toner Cartridges Recycling Toner Cartridges Cleaning the Printer Cleaning Printer Components Cleaning Printer Components Cleaning Spilled Toner Functional Overview Functional Overview Printer Functional Block Diagram Basic Printer Functions DC Controller/Power System DC Controller Loads Print Engine Control System Laser and Scanner Drive Power System on DC Controller PCA AC Power Distribution High Voltage Power Distribution Read Only Memory ROM Random Access Memory RAMFormatter System Parallel Interface Resolution Enhancement REt Control Panel Memory Enhancement technology MEt EconoMode vs Normal ModeEconoMode PJL Overview Enhanced I/OProtect Image Formation Block Diagram Image Formation System Drum Conditioning Drum CleaningToner Cartridge Image Writing Image Transferring Image FusingImage Developing Paper Feed System Simplified Paper Path Solenoid and Sensors Solenoid and Photosensors Name Description Paper Jam Detection Printer Timing Refer to Timing Diagram on the nextBasic Sequence of Operation Period Timing Purpose General Timing Diagram Removal and Replacement Removal and Replacement Removal and Replacement Strategy Required Tools Phillips and Posidriv screwdrivers Installing Memory Cards Dram Back Cover Removal 1 Covers and DoorsBack Cover Back Cover Removal 2 EP Door Assembly EP Door Assembly Removal Memory Door Memory Door Removal Main Cover and Paper Input Assembly Main Cover and Paper Input Assembly Removal Internal Assemblies Control Panel Removal Exit Roller Assembly Exit Roller Removal Delivery Assembly Delivery Assembly Removal 1 Delivery Assembly Removal 2 Fuser Pressure Plate Fuser Pressure Plate Removal Fuser Pressure Plate Replacement Heating Element Heating Element Removal 1 Heating Element Removal 2 Heating Element Removal 3 Pressure Roller Pressure Roller Removal Face-Up/Face-Down Lever Replacement Face-Up/Face-Down Lever Fuser Exit Roller Assembly Fuser Exit Roller Removal Paper Exit Sensor Flag Replacement Paper Exit Sensor Flag Top Assemblies Laser/Scanner AssemblyLaser/Scanner Assembly Removal Solenoid Solenoid Removal 1 Solenoid Removal 2 Pickup Roller Assembly Pickup Roller Assembly Removal 1 Pickup Roller Assembly Removal 2 To reinstall Paper Pickup Roller Assembly Replacement Inside/Front View Paper Feed Frame Paper Feed Frame Removal Paper Feed Frame Removal 1 Paper Feed Frame Removal 2 Transfer Roller Guide & Transfer Roller Kick Plate Kick Plate Removal Kick Plate Spring Replacement Separation Pad Separation Pad Removal Subpads Subpad Removal Feed Assembly Feed Assembly Removal 1 Feed Assembly Removal 2 Feed Assembly Removal 3 Memory Door Guide Removal Bottom AssembliesMemory Door Guide Motor Motor Removal DC Controller DC Controller Removal 1 DC Controller Removal 2 DC Controller Removal 3 Formatter PCA Formatter Board Removal Troubleshooting Troubleshooting General Troubleshooting Flowchart Start Exit Paper Path and Components Paper Path and Components DC Controller Diagram DC Controller PCA Components Printer Error Troubleshooting Priority of Errors LEDs Description Recommended Action Printer Status MessagesPrinter Status Messages 1 Unclearable Error Printer Status Messages 2 Service and Error Messages Service and Error Messages 1 Beam Error. There are a number of causes Service and Error Messages 3 Formatter Error Image Formation Troubleshooting Check the Toner Cartridge Image Defect Examples Faded Print Vertical Lines Character Voids Dropouts Blank Page Occasional White Horizontal Line Distorted Image or BD Failure Engine Test Troubleshooting ChecksEngine Test Half-Self Test Functional Check Drum Rotation Functional Check Toner Cartridge High Voltage Connection Points 1 High-Voltage Power Supply CheckHigh-Voltage Power Supply Check Checks Action Toner Cartridge High Voltage Connection Points 2 Possible Cause Recommended Action Paper Curl TroubleshootingPaper Curl Overriding PS204 Troubleshooting ToolsPaper Path Check Repetitive Image Defect Ruler Repetitive Image Defect Ruler Main Wiring Diagram Troubleshooting Connector Signal Name Remarks Cable Pinouts Dosns 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 Common Hardware Example Description Major Assembly Locations Covers and Doors Description Internal Components 1 Qty Description Internal Components 2 Parts and Diagrams Internal Components 3 Parts and Diagrams DC Controller/Formatter and Cables Inches Connector Cable LengthECU Case Pickup Roller Assembly Parts and Diagrams Feed Assembly RG5-1942-000CN Feed Assembly RB1-7226-000CN Idler Roller Separation Guide Assembly Parts and Diagrams Delivery Assembly Parts and Diagrams Parts and Diagrams Parts Index Alphabetical Parts List Parts Index Parts Index A-3 Parts Index Parts Index A-5 Table A-2 Numerical Parts Index Numerical Parts List Table A-2 Parts Index Parts Index A-9 Parts Index Laser Safety U.S.A Regulatory Information Laser Statement Finland Toner Safety Ozone Emission Vcci Statement Japan FCC Statement Class BVcci Statement Japan Index HP AUDIO-TIPS Index-2 Index-3 Index-4