LaserJet 3300 MF printer Service Manual This manual contains the necessary information to service the HP LaserJet 3300 MFP Contents: 1 Product information Chapter contents Introduction Overview of product Front and side view Back and side view Hardware description Firmware description Product Specifications Model and serial numbers Warranty statement Extended warranty Print cartridge information Refilled print cartridges Recycling print cartridges FCC Part 68 Requirements (US) Telephone Consumer Protection Act (US) IC CS-03 requirements Regulatory information for EU countries 2 Operation Chapter contents Operating environment Identifying the control panel components Fax controls To send a fax to one recipient To receive faxes when you hear fax tones Alphanumeric buttons Menu and cancel controls Copy, scan, and start controls Control panel menu structure To print the control panel menu structure To use the control panel keys Control panel error messages Product media specifications Supported media sizes (printer) Guidelines for using media Paper and Transparencies Common media problems table Labels Envelopes Card stock and heavy media Loading media Loading media to print Selecting originals for the ADF Media information for the flatbed Loading originals to copy or scan To load originals onto the flatbed scanner To load originals into the ADF input tray Printer output paths 3 Maintenance Chapter contents Life expectancies of parts that wear Scanner calibration Cleaning the product Cleaning the exterior Cleaning the glass Cleaning the lid backing Cleaning the print path Cleaning the print cartridge area Cleaning the printer pickup roller Cleaning the printer separation pad User-replaceable parts Replacing the printer pickup roller Replacing the printer separation pad Installing a new ADF To install a new or replacement ADF Changing an ADF pick roller assembly Removing and replacing the control panel bezel 4 Operational overview Chapter contents Basic functions Formatter system Central processing unit Line Interface Unit (LIU) Scanner formatter PCA Flash memory or ROM Standard Boot Process RAM Parallel interface or Universal Serial Bus interface Control panel Draft mode MEt Enhanced I/O EN Contents 5 PJL overview Scanner and ADF functions and operation Scanner Functions Scanner Operation ADF Operation ADF paper path and ADF sensors ADF Jam Detection Printer functions and operation Engine control unit/power system Image formation system Printer paper-feed system Jam detection Basic sequence of operation (formatter-to-printer) LIU (fax) functions and operation PSTN operation The fax subsystem Formatter in the fax subsystem LIU in the fax subsystem Fax page storage in flash memory 5 Removal and replacement Chapter contents Removal and replacement strategy Required tools Before performing service Print cartridge Parts removal order Separation of scanner from printer Right side cover Scanner side covers Scanner assemblies Flat lid or ADF assembly The ADF pick roller assembly ADF document feed guide ADF separation pad Control panel bezel Control panel Control panel chassis Scanner formatter ADF scanner glass Printer covers Left side door Back cover Printer top cover Front cover assembly Printer assemblies 6 Contents EN Transfer roller Line Interface Unit (LIU) Formatter Fuser assembly Output rollers Motor Solenoid Fan assembly Pickup assembly Paper lift-plate assembly and pickup roller shaft Right plate assembly Left plate assembly Bottom assemblies Left bottom frame support ECU fuses and ECU pan Paper-feed assembly 6 Troubleshooting Chapter contents Basic troubleshooting Errors Control panel messages Critical error messages Checking the print cartridge Solving image-quality problems Solving paper-feed problems Solving print paper-feed problems Solving scanner (copier) paper-feed problems Functional checks Engine test Half self-test functional check Drum rotation functional check Heating element check High-voltage power supply check Paper path check Updating or recovering the firmware code Firmware update via flash executable Firmware recovery DIMM Troubleshooting tools Internal reports Printing all fax reports at once T.30 protocol trace Service mode functions Secondary service menu Developer’s menu NVRAM init PJL software commands Repetitive image defect ruler Main wiring Locations of connectors Locations of connectors and switches 7 Parts and diagrams Chapter contents Ordering parts and supplies Parts Related documentation and software Parts that wear Accessories Common hardware How to use the parts lists and diagrams Scanner assemblies Scanner and ADF ADF rollers and separation pad Control panel assembly Printer assemblies Printer covers Paper tray Internal assemblies Internal components (1 of 2) Internal components (2 of 2) Electrical components Paper pickup assembly (1 of 2) Paper pickup assembly (2 of 2) Fuser assembly Alphabetical parts list Numerical parts list Index FORMAT: High resolution PDF document! 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