Lexmark X543 X544 Series Service Manual and Parts List Manual

This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Lexmark.
You can print, zoom or read any diagram, picture or page from this Service Manual and Parts List Manualt. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of Lexmark X543 X544 Series. 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

Options and features
Print quality
Connectivity (network support)
Operating modes
Data streams
Power and electrical specifications
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
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

POR (Power-On Reset) sequence
Symptom tables
Printer symptom table
Scan / fax / copy symptom table
Print quality symptom table
Error codes and messages
User status and attendance messages
Paper Jam messages
Service error messages
Fax error log codes
Service checks
Autocompensator mechanism service check
90x.xx error
920.xx-923.xx-Fuser temperature incorrect
925.01-Fan error service check
930.xx-935.xx-Printhead errors service check
936.xx, 937.xx-Transport motor service check
950.xx EPROM mismatch 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 check
One or more operator panel buttons fail
Operator panel display blank, five beeps
Operator panel display blank, printer beeps five times and pauses
Operator panel displays all diamonds, no beeps
Operator panel displays all diamonds, five beeps
Operator panel display is dim and unchanging
Op panel USB cable service check
USB service check
Networking service check
Print quality service check
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
Toner sensors (Y, C, M, K) on TMC card
Transfer roll service check
Tray 1 sensor service check
840.xx 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 second-level support
User operator panel, menus and messages
Understanding the operator panel
Operator panel buttons
Menu map

Menu key combinations
Diagnostics Menu (Diag Menu)
Diagnostics menu structure
Available tests
Quick test
Factory Scanner
Factory Manual
Miscellaneous Tests
Motor Detect
Print Tests
Input source tests
Print quality test pages (Prt Quality Pgs)
Hardware Tests
Panel Test
Button Test
Duplex Tests
Quick Test (duplex)
Left Margin (duplex)
Top Margin (duplex)
Sensor Test (duplex)
Input Tray tests
Feed Tests
Sensor Test
Base Sensor Test
Device Tests
Flash Test
Printer Setup
Page Counts
Serial Number
Model Name
Configuration ID
ITU Barcode
Enable Edge to Edge Copy
Reset Fuser Count
EP Setup
EP Defaults
Fuser Temp
DC Charge Adjust, Deve Bias Adj, Transfer Adj
TPS Setup
Right or Left TPS
Reset Color Cal
Cal Ref Adj
Main Settings Page
Event Log
Display Log
Print Log
Clear Log
Scanner Tests
Feed Test
Sensor Test
EXIT Diags
Configuration Menu
Available tests
USB Scan to Local
Prt Quality Pages
Color Trapping
Menu Settings Page
Event Log
Panel Menus
PPDS Emulation
Demo Mode
Factory defaults
Energy Conserve
Min Copy Memory
Format Fax Storage
Auto Color Adj
ADF Edge Erase
FB Edge Erase
Scanner Manual Registration
To manually register a Duplex ADF, perform the following steps:
To manually register the flatbed, perform the following steps:
Disable Scanner
Font Sharpening
Pel Blurring
Exit Config Menu
SE Menu
Print SE Menus
Code Revision Info
Paper jams
Avoiding jams
Understanding jam numbers and locations
200 paper jams
201 paper jam
202 paper jam
230 paper jam
235 paper jam
24x paper jam
250 paper jam
29x ADF paper jam
291.xx ADF paper jams
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
What is RGB color?
What is CMYK color?
How is color specified in a document to be printed?
How does the printer know what color to print?
Should I use PostScript or PCL emulation? What settings produce the best color?
Why doesnt the printed color match the color I see on the computer screen?
The printed page appears tinted. Can I adjust the color?
My color transparencies seem dark when they are projected. Is there anything I can do to improve the color?
What is manual color correction?
How can I match a particular color (such as a corporate logo)?
What are detailed Color Samples and how do I access them?

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
Controller board removal
Duplex sensor removal
Fuser assembly removal
Fuser drive motor assembly removal
Fuser exit sensor removal
High-voltage power supply (HVPS) assembly removal
Image transfer unit (ITU)
Imaging unit (IU) removal
Developer unit removal
Low-voltage power supply (LVPS) assembly
Lower frame removal, right and left
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 contacts
Toner meter cycle (TMC) card removal
Toner patch sensor (TPS)-left and right removal
Tray present sensor removal
USB connector removal
Waste toner bottle
Wireless network antenna
Wireless network card
Scanner component removal procedures
Flatbed removal
Preparing and installing re new flatbed
Duplex ADF rear cover
Duplex ADF removal
Simplex ADF rear cover
Simplex ADF removal
ADF input tray
ADF cable
ADF separator pad
ADF separator roll assembly
Bezel cover
Redrive unit
Cover scanner left
Cover scanner right
AIO release lever
AIO link
AIO toner cover
Operator panel removal
Op panel bezel removal
Op panel cable
Logo cover
Fax card removal
Fax interface cable
Output bin tray
Bin full flag removal

Exterior views
Interior view
Printer boards
Controller Board
Toner meter card
Toner meter card connectors
Wireless card

Safety inspection guide
Lubrication specifications

How to use this parts catalog
Assembly 1: Covers
Assembly 2: Scanner
Assembly 3: Paperpath
Assembly 4: Electronics 1
Assembly 5: Electronics 2
Assembly 6: Options
Part number index

Number of pages: 311.