Lexmark X548 Series 7525-63x Service Manual & Parts List Lexmark X548de, X548dte; This service manual, is the full Lexmark X548de, X548dte Service Repair Manual. This manual, Lexmark X548de, X548dte, is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Lexmark X548de, X548dte copier. You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of Lexmark X548de, X548dte photocopier. You can find easily everything what do you need. To see what contain, please read table of contents: Table of contents Notices and safety information Laser notice Lithium warning Safety information Preface Change history Conventions GENERAL INFORMATION Models Options and features Memory Print quality Connectivity (network support) Operating modes Data streams Dimensions Clearances Power and electrical specifications Acoustics Environment specifications Media handling Input and output sources Duplex capability Media input size specifications Media input type specifications Media output size and type Media guidelines Paper characteristics Unacceptable paper Selecting paper Selecting preprinted forms and letterhead Storing paper Using recycled paper and other office papers Digital imaging specifications General specifications ADF scan speed ADF document handling Resolution and color depth Flatbed document specifications Flatbed speed Scanner operating environments Storage environments Tilt Scan and copy specific specifications Scan resolutions Output resolutions Duplex scan Scan file output formats Supported compressions Supported scan destinations Multiple copies Reduce/Enlarge Fax specifications Phone network connectivity Fax resolutions Miscellaneous fax specifications Tools required for service Acronyms DIAGNOSTIC INFORMATION Start Symptom tables Service errors (1xx.xx, 8xx.xx, and 9xx.xx's) User status and attendance messages Power-On Reset (POR) sequence Symptoms tables Printer symptoms table Scan / fax / copy symptom table Print quality symptoms table Error codes and messages User status and attendance messages 2xx paper jam messages Service error messages Fax error log codes Service checks 900.xx system software error service check 90x.xx error (902.xx-907.xx) service check 925.01 fan error service check 950.xx NVRAM failure service check Autocompensator mechanism service check Bin full sensor service check Dead printer service check Duplex/manual feed sensor (S1) service check Front door sensor or switches service check Fuser exit sensor service check Fuser service check Input sensor (S2) service check Main drive gear assembly (EP drive) service check Operator panel service checks One or more operator panel buttons fail Operator panel display is blank Op panel USB cable service check USB service check Networking service check Print quality service checks Print quality-background Print quality-blank page Print quality-blurred or fuzzy print Print quality-half-color page Print quality-horizontal banding Print quality-horizontal line Print quality-insufficient fusing Print quality-missing image at edge Print quality-mottle (2-5mm speckles) Print quality-narrow vertical line Print quality-random marks Print quality-residual image Print quality-solid color page Print quality-vertical banding Printhead service check Toner meter cycle (TMC) card service check Toner sensors (Y, C, M, K) on TMC card service check Transfer roll service check Tray (x) sensor service check Option trays 2 and 3 service check 840.xx error service check Black or blank page copy service check CCD service check Flatbed motor service check Flatbed home position service check ADF cover open service check ADF streak service check ADF paper jam service check ADF feed errors service check ADF duplex service check Modem/fax card service check Fax transmission service check Fax reception service check Escalating a fax issue to next level support DIAGNOSTIC AIDS User operator panel, menus and messages Understanding the operator panel Operator panel buttons Understanding the home screen Other buttons that may appear on the home screen: Menu map Menu key combinations Diagnostics Menu (Diag Menu) Diagnostics Menu structure Available tests REGISTRATION Printer Skew Quick Test Alignment Menu Factory Scanner Factory Manual Scanner Calibration Copy Quick Test Adjust Calibration Values Reset Flatbed, ADF Front, ADF Back Calibration Values MISC TESTS Motor Detect PRINT TESTS Input source tests Print Quality Pages HARDWARE TESTS Panel Test Button Test DRAM Test USB HS Test Mode DUPLEX TESTS Quick Test (duplex) Left Margin (duplex) Top Margin (duplex) INPUT TRAY TESTS Feed Tests Sensor Test BASE SENSOR TEST DEVICE TESTS Flash Test Quick Disk Test Disk Test/Clean PRINTER SETUP Defaults Prt Color Pg Count, Prt Mono Pg Count and Perm Page Count Serial Number Engine Setting 1 through 4 Model Name Configuration ID ITU Barcode Reset Maintenance Counter Reset Fuser Cnt EP Setup EP Defaults Fuser Temp DC Charge Adjust, Dev Bias Adj, Transfer Adjust TPS Setup Right or Left TPS Reset Color Cal Cal Ref Adj REPORTS Menu Settings Page Event Log Display Log Print Log Clear Log SCANNER TESTS ASIC Test Feed Test Sensor Tests ADF paper present sensor test FB cover open sensor test ADF cover open sensor test Scan 1st sensor test Scanner 2nd sensor test Scanner Calibration Reset ADF Magnification EXIT DIAGS Configuration Menu Available tests Reset Separator Roll and Pick Assembly Counter USB Scan to Local Print Quality Pages Reports Menu Settings Page Event Log Color Trapping Tray Insert Msg Panel Menus PPDS Emulation Factory Defaults Energy Conserve Fax Low Power Support Min Copy Memory NumPad Job Assist Format Fax Storage Fax Storage Location Automatic Color Adjust ADF Edge Erase FB Edge Erase Scanner Manual Registration Disable Scanner Jobs On Disk Disk Encryption Erase All Information on Disk Wipe All Settings Font Sharpening Pel Blurring Require Standby UI Automation Key Repeat Initial Delay Key Repeat Rate Clear Custom Status Pel Blurring USB Speed USB PnP Automatically Display Error Screens Exit Config Menu SE Menu Print Se Menus Invalid engine code mode Backing up eSF applications and settings Paper jams Avoiding jams Understanding jam numbers and locations 200 paper jam 201 paper jam 202 paper jam 230 paper jam 235 paper jam 241 paper jam 242, 243 paper jam 250 paper jam 290-294 ADF paper jams 291.xx ADF paper jams Updating printer firmware Theory of operation Print engine theory Electrophotographic process (EP process) MFP electrophotographic process basics Step 1: Charge Step 2: Expose Step 3: Develop Step 4a: First transfer Step 4b: Second transfer Step 5: Fuse Step 6: Clean/Erase Paper path transport components Paper path Information Transport components Duplexing (models with duplex support only) Scanner theory Duplex ADF Color theory REPAIR INFORMATION Handling ESD-sensitive parts Testing generic FRUs Removal procedures Print engine removal procedures Front cover assembly removal Front middle cover removal Left cover removal Right cover removal Rear shield removal AIO back cable cover removal Top cover assembly removal Autocompensator mechanism (ACM)-standard tray removal Bin full sensor removal Narrow media sensor flag removal RIP board removal Duplex reference edge removal Duplex sensor removal Fax card removal Fuser assembly removal Fuser drive motor assembly removal Fuser exit sensor removal Hard drive removal High-voltage power supply (HVPS) with spring assembly removal Image transfer unit (ITU) removal ITU without spring clamp kit removal Continuing the removal (with or without spring clamp kit) Developer unit removal Low-voltage power supply (LVPS) assembly removal Left lower frame and right lower frame removal Left lower frame Right lower frame Main drive gear assembly with motor removal Pick tires removal-integrated 250-sheet media tray Printhead removal Imaging unit (IU) removal Toner cartridge contacts removal Toner meter cycle (TMC) card removal Toner patch sensor (TPS)-left and right removal Tray present sensor removal USB connector removal Waste toner bottle removal Waste toner bottle contact block removal Scanner component removal procedures Flatbed removal Preparing and installing the new flatbed Flatbed pivot link removal Duplex ADF rear cover removal Duplex ADF removal ADF input tray removal ADF cable removal ADF separator pad removal ADF separator roll assembly removal Redrive unit removal Scanner left cover removal Scanner right cover removal AIO release lever removal AIO link removal AIO toner cover removal Bin full flag removal LCD removal Operator panel assembly removal Operator panel cover with light pipe removal Operator panel bezel removal Operator panel frame cover removal Output bin tray removal Rear case with speaker removal Sleep button removal Sleep button PCB removal Speaker removal USB cable removal User interface controller card cable removal User interface controller card removal LOCATIONS Exterior views Front Rear Print engine interior view Printer boards RIP board Connectors HVPS Connectors LVPS Connectors Toner meter card Connectors PREVENTIVE MAINTENANCE Safety inspection guide Scheduled maintenance Customer replacable units (CRUs) Maintenance kit Lubrication specifications Cleaning the printer Cleaning the exterior of the printer Cleaning the scanner glass PARTS CATALOG How to use this parts catalog Assembly 1:Covers Assembly 2:Scanner Assembly 3:Operator panel Assembly 4:Paperpath Assembly 5:Electronics 1 Assembly 6:Electronics 2 Assembly 7:Media drawers and trays Assembly 8:Options INDEX Part number index Number of pages: 347.