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Date: 25 January Printer door-open jam Printer residual-media jam Printing from the sheet feeder Printing from the 1,sheet feeder Envelope feeder Envelope-feeder pickup and feeding Envelope feeder jam detection Envelope feeder pickup delay jam Envelope feeder pickup stationary jam Reversing and duplexer pickup Duplexer jam detection Stacker feed and delivery Stacker jam detection Stacker-feed jam Stacker-feed stationary jam Stacker residual-media jam Staple-mode feed and delivery Stapler unit Stapler-unit operation Staple level-detection Stack-mode feed and delivery Image-formation system Electrostatic latent-image formation Primary charging Writing the image Developing the image Transferring the image Fusing the image Cleaning the transfer charging roller and photosensitive drum Print-cartridge memory chip Formatter system Resolution Enhancement technology Parallel interface Hard-disk accessory Printer memory Read-only memory Random-access memory DIMM slots Nonvolatile memory Memory Enhancement technology PJL overview Control panel Removal and replacement strategy Required tools Before performing service After completing service Screws used in the printer Parts-removal tree Printer input tray, and cabinet wheel locks Dc controller PCA diagram User-replaceable parts Print cartridge Transfer roller Tray 1 pickup roller Tray 1 separation pad Tray 2 feed rollers Covers, tray 1, and the rear output bin Accessory covers and the tray 2 extension door Formatter cover Top cover Right-side cover Left-side cover Front cover Tray Rear output bin Control-panel display Control-panel overlay Control-panel assembly Main assemblies Formatter assembly Reinstallation notes, formatter Output-delivery assembly Duplexing-pendulum assembly Paper-pickup drive assembly Tray 2 lifter-drive assembly Reinstallation tip Paper-feed belt assembly Motors and fans Main cooling fan left side Removing the fan without removing the air duct Removing the fan and the air duct together Main motor Pickup and feed assemblies Tray 1 paper-pickup assembly Paper-feed assembly Reinstallation notes for the paper-feed assembly Main drive assembly Registration assembly Sensors and switches Tray 2 media-size sensor PS Tray 1 paper sensor PS Door switch SW Solenoids and clutches Tray 2 pickup solenoid SL Tray 1 pickup solenoid SL Feed-roller clutch CL Troubleshooting process Initial troubleshooting checklist Troubleshooting flowchart Power-on checks Troubleshooting tools Information pages Menu map Configuration page Supplies status page Embedded Web server Gaining access to the embedded Web server Information tab Settings tab Networking tab Other links Printer Status and Alerts software To select status messages To view status messages and information Using control-panel menus Resets submenu Diagnostics menu Service menu service PIN codes Service ID Converting the Service ID to an actual date Restoring the Service ID Printer resets and power-on modes Cold reset To perform a cold reset NVRAM initialization Hard-disk initialization To initialize the hard disk Power-on bypass Skip disk-load Test pages Engine-test page Formatter test page Interface troubleshooting Communications checks Computer direct connect parallel test EIO troubleshooting Display-message troubleshooting Status messages Warning messages Error messages Critical-error messages Alphabetical printer messages Numerical printer messages Paper-path troubleshooting Jam recovery To disable the jam recovery Avoiding jams Persistent jams Basic troubleshooting for persistent jams Data collection General paper-path troubleshooting Paper-path checklist Paper-path test To perform a paper-path test Jams in tray Jams in tray 3 or tray Jams in the paper path Jams in the duplex path Media transport problems Multiple pages feed Media is wrinkled or folded Media is skewed Image-formation troubleshooting Media-related print-quality problems Overhead transparency defects Print-quality problems that are related to the environment Print-quality problems that are related to jams Image defects Image quality Check the print cartridge Half self-test functional check Drum-rotation functional check Image defect tables Repetitive-defects troubleshooting Initial checks Jam errors Stacker paper-path test Paper-transport errors Malfunction errors Component errors Printer-component locations Main printer parts Printer switches and sensors Printer motors and fans Printer PCAs Accessory component locations Printer and accessory wiring diagrams HP LaserJet wiring diagram Duplex accessory wiring diagram Envelope-feeder-accessory wiring diagram Stacker-accessory wiring diagram Dc controller connectors diagram General timing diagrams HP LaserJet general timing diagram Ordering parts and supplies Related documentation and software HP-authorized resellers and support HP service agreements HP Partner Portal Consumables and accessories Memory, fonts, and mass storage Cables and connectivity Assembly locations 1 of
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