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Lexmark C540n, C543dn, C544n, C544dn, C544dtn, C544dw, C546dtn, Service Manual & Parts List
This service manual, is the full Lexmark C540n, C543dn, C544n, C544dn, C544dtn, C544dw, C546dtn Service Repair Manual.
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Lexmark C540n, C543dn, C544n, C544dn, C544dtn, C544dw, C546dtn copier.
You can print, zoom or read any diagram, picture or page from this Service & Parts List 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 C540n, C543dn, C544n, C544dn, C544dtn, C544dw, C546dtn 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
Safety information
Preface
Conventions
GENERAL INFORMATION
Models
Configurations
Options and features
Printer specifications
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 and capacities
Duplex capability
Media output size and type
Media input size specifications
Media input type specifications
Media guidelines
Paper characteristics
Unacceptable paper
Selecting paper
Selecting preprinted forms and letterhead
Storing paper
Using recycled paper and other office papers
Tools required for service
Acronyms
DIAGNOSTIC INFORMATION
Start
POR (Power-On Reset) sequence
Symptom tables
Printer symptom table
Print quality symptom table
Error codes and messages
User status and customer attendance messages
Paper Jam messages
Service error messages
Service checks
https://www.tradebit.com error
925.01-Fan error service check
https://www.tradebit.com NVRAM Failure service check
Bin-full/narrow media 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 (S2) sensor service check
Main drive gear assembly (EP drive) service check
Networking 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
Operator panel USB cable service check
Paper pick motor drive assembly 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 meter sensors (Y, C, M, K) on TMC card
Transfer roll service check
Tray (x) sensor service check
Trays 2 and 3 (optional) service check
USB service check
User operator panel and Administration menus
Printer operator panel
Operator panel buttons
Menu map
DIAGNOSTIC AIDS
Accessing service menus
Diagnostics Menu (Diag Menu)
Diagnostics Menu structure
Available tests
Registration
Skew
Quick Test
Alignment
Print Tests
Input source tests
Print quality test pages (Prt Qual Pgs)
Hardware Tests
Panel Test
Button Test
DRAM Test
Duplex Tests
Quick Test (duplex)
Top Margin (duplex)
Left Margin (duplex)
Input Tray Tests
Feed Tests
Sensor Test
Base Sensor Test
Miscellaneous tests
Motor Detect
Device Tests
Flash Test
Printer Setup
Defaults
Page counts
Serial Number
Engine Setting 1 through 4
Model Name
Configuration ID
ITU Barcode
Reset Fuser Cnt
EP Setup
EP Defaults
Fuser Temperature
DC Charge Adjust, Dev Bias Adj, Transfer Adjust
TPS Setup
Right or Left TPS
Cal Ref Adj
Reset Color Cal
Reports
Menu Settings Page
Event Log
Display Log
Print Log
Clear Log
EXIT Diags
Configuration menu (Config Menu)
Available tests
Prt Quality Pgs
Color Trapping
Reports
Menu Settings Page
Event Log
Panel Menus
PPDS Emulation
Demo Mode
Factory Defaults
Energy Conserve
Auto Color Adj
Font Sharpening
Exit Config
Updating printer firmware
From a flash drive
Using a networked computer to update the printer firmware over a network
Using FTP
Using the Web server
Using the host computer to update the firmware over USB
Paper jams
Avoiding jams
Understanding jam numbers and locations
200 paper jams
201 paper jam
202 paper jam
230 paper jam
235 paper jam
241 paper jam in primary tray
242 paper jam in the 650-sheet Duo Drawer
243 paper jam in the 550-sheet drawer
250 paper jam
Theory of operation
Print engine theory
Electrophotographic process (EP process)
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
Duplex process
Color theory
REPAIR INFORMATION
Handling ESD-sensitive parts
Removal procedures
Front cover assembly removal
Left cover assembly removal
Operator panel bezel and name plate removal
Operator panel logo plate
Operator panel removal
Rear shield removal
Right cover assembly removal
Top cover assembly removal
Bin-full/narrow media sensor removal
Bin-full/narrow media sensor flag and exit deflector removal
Controller board removal
Developer unit removal
Duplex reference edge removal
Duplex sensor removal
Exit deflector and bin-full/narrow media sensor flag removal
Fuser assembly removal
Fuser drive motor assembly removal
Fuser exit sensor removal
High-voltage power supply (HVPS) assembly removal
High-voltage power supply (HVPS) with no spring
High-voltage power supply (HVPS) with spring
Image transfer unit (ITU) removal
Imaging unit (IU) removal
Low-voltage power supply (LVPS) assembly removal
Lower frame removal, right and left
Left lower frame
Right lower frame
Main drive gear assembly removal
Paper pick motor drive assembly removal-standard tray
Pick tires removal
Printhead removal
Toner cartridge contacts
Toner density sensor (TDS) removal-left or right sensor
Toner meter cycle (TMC) card removal
Tray present sensor removal
USB port connector removal
Waste toner bottle removal
Waste toner bottle contact block removal
Wireless network antenna removal
Wireless network card
CONNECTOR LOCATIONS
Locations
Connectors
Controller board diagram
High-voltage power supply (HVPS) diagram
Low-voltage power supply (LVPS) diagram
Toner meter cycle (TMC) card
Wireless network card
PREVENTIVE MAINTENANCE
Safety inspection guide
Lubrication specifications
Scheduled maintenance
Maintenance kit
PARTS CATALOG
How to use this parts catalog
Assembly 1: Covers
Assembly 2: Frames
Assembly 3: Electronics
Assembly 4: Cables
Assembly 5: Media drawers and trays
Assembly 6: Options and miscellaneous
INDEX
Part number index
Number of pages: 262.
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