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Lexmark C746n, C746dn, C746dtn, C748e, C748de, C748dte, Service Manual & Parts List
This service manual, is the full Lexmark C746n, C746dn, C746dtn, C748e, C748de, C748dte Service Repair Manual.
This manual, Lexmark C746n, C746dn, C746dtn, C748e, C748de, C748dte, is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Lexmark C746n, C746dn, C746dtn, C748e, C748de, C748dte 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 C746n, C746dn, C746dtn, C748e, C748de, C748dte photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:
Covers:
Lexmark C746n, C746dn, C746dtn,
C748e, C748de, C748dte
5026-3xx, 5xx
NOTICES AND SAFETY INFORMATION
Laser notice
Aviso sobre o laser
Lithium warning
Safety information
PREFACE
Conventions
Navigation buttons
General information
Models
Options
Media options
Memory options
Printer specifications
Dimensions
Clearances
Memory
Expansion opportunities
Resolution
Data streams
Environment specifications
Electrical and power specifications
Acoustic specifications
Media specifications
Input and output capacities
Input and output sizes and types
Paper guidelines
Tools required for service
Acronyms
DIAGNOSTIC INFORMATION
Start
Operator panel and menus
C746x operator panel
C746x buttons and light descriptions
C748x operator panel
C748x buttons and light descriptions
Administrative menus
Power-on self test (POST) sequence
Symptom tables
Printer symptom table
Print quality symptom table
User status and attendance messages
Error codes and messages
Service checks
https://www.tradebit.com-Cartridge errors service check
https://www.tradebit.com-Mirror motor service check
https://www.tradebit.com, https://www.tradebit.com, https://www.tradebit.com, and https://www.tradebit.com-Printhead error service check
https://www.tradebit.com-Fuser error service check
https://www.tradebit.com, 920.02-Autocomp (tray 1) motor error service check
https://www.tradebit.com, 906.01-906.04-Motor (fuser) error service check
https://www.tradebit.com-Motor (EP drive assembly top cartridge 1 motor) error service check
https://www.tradebit.com-Motor (EP drive assembly middle cartridge) error service check
https://www.tradebit.com-Motor (EP drive assembly bottom cartridge) error service check
https://www.tradebit.com, https://www.tradebit.com-Motor (MPF/duplex) error service check
https://www.tradebit.com, 920.01-POST (power-on self test) aligner error service check
https://www.tradebit.com-Cam motor error service check
https://www.tradebit.com-COD (Color On Demand) motor service check
https://www.tradebit.com, https://www.tradebit.com-Motor Error (option tray 2) service check
https://www.tradebit.com, https://www.tradebit.com-Motor Error (option tray 3) service check
https://www.tradebit.com, https://www.tradebit.com-Motor Error (option tray 4) service check
https://www.tradebit.com, https://www.tradebit.com-Motor Error (option tray 5) service check
https://www.tradebit.com-Motor (HCIT elevator) error service check
200.11, 250.03-Paper Jam error service check
201.06, 201.08, 201.31-Paper Jam error service check
203.09-Paper Jam error service check
230.03, 230.05-Paper Jam error service check
242.02-Paper Jam service check
242.03, 242.11-Paper Jam service check
242.05-Paper Jam service check
242.10-Paper Jam service check
242.17-Paper Jam service check
242.21, 243.21, 244.21. 245.21, 242.30, 243.30, 244.30, 245.30-Paper Jam service check
242.26-Paper Jam service check
242.27-Paper Jam service check
242.29-Paper Jam service check
242.32, 243.32, 244.32, 245.32-Paper Jam service check
243.02-Paper Jam service check
243.03, 243.11-Paper Jam service check
243.05-Paper Jam service check
243.10-Paper Jam service check
243.17-Paper Jam service check
243.26-Paper Jam service check
243.27-Paper Jam service check
243.29-Paper Jam service check
244.02-Paper Jam service check
244.03, 244.11-Paper Jam service check
244.05-Paper Jam service check
244.10-Paper Jam service check
244.17-Paper Jam service check
244.26-Paper Jam service check
244.27-Paper Jam service check
244.29-Paper Jam service check
245.02-Paper Jam service check
245.03, 245.11-Paper Jam service check
245.05-Paper Jam service check
245.10-Paper Jam service check
245.17-Paper Jam service check
245.29-Paper Jam service check
900.00-900.99 (except 900.05)-System software error service check
900.05-Transfer module error service check
902.59-Engine software error, NVRAM MGR problem service check
920.03, 920.25-Transfer Module Missing or not connected service check
920.04-POST (power-on self test) fuser motor not connected error service check
920.05-POST (power-on self test) printhead motor not connected error service check
920.06-Input sensor service check
920.07-POST (power-on self test)-Narrow media sensor error service check
920.08-Exit sensor service check
920.09-POST (power-on self test)-Four toner sensors not connected error service check
920.10-POST-Three toner sensors not connected error service check
920.11-POST (power-on self test)-Two toner sensors not connected error service check
920.12-POST (power-on self test)-One toner sensor not connected error service check
920.13-POST (power-on self test) cartridge motor 1 not connected error service check
920.14-POST (power-on self test)-Cartridge motor 2 not connected error service check
920.15, 920.20-POST (power-on self test)-Bad transfer module NVRAM data error service check
920.16-POST (power-on self test)-Bad printhead NVRAM data error service check
920.17-POST (power-on self test)-Output bin cable not connected error service check
920.18-POST (power-on self test)-Cartridge motor 3 not connected error service check
920.19-POST (power-on self test)-Transfer module stepper motor not connected error service check
920.21-POST (power-on self test)-24 V power supply failure error service check
920.23-POST (power-on self test)-Duplex motor not connected error service check
920.27, 920.28, 920.29-POST (power on self test) option tray error service check
920.32-MPF paper present sensor not connected service check
925.01, 925.03, 925.05-Fan error service check
925.02, 925.04, 925.06-Cartridge cooling fan error service check
https://www.tradebit.com, https://www.tradebit.com-Transfer roll error service check
950.00-950.29-EPROM mismatch failure
https://www.tradebit.com-System board failure service check
5 V interlock switch service check
24 V interlock switch service check
Bubble sensor service check
Dead printer service check
Networking service check
Operator panel service check
Print quality service check
Tray 1 missing service check
Tray linking service check
DIAGNOSTIC AIDS
Accessing test and diagnostic procedure menus
Diagnostics menu
Diagnostics menu structure
Available tests
Registration
Alignment
Motor tests
Print Tests
Hardware Tests
Duplex Tests
Sensor Test
Printhead Tests
Device Tests
Printer Setup
EP Setup
Reports
Event Log
EXIT DIAGNOSTICS
Configuration menu (CONFIG MENU)
Available tests
Reset Fuser Cnt
Color Lock Out
Print Quality Pages
Reports
Color Trapping
Tray Insert Msg
Panel Menus
PPDS Emulation
Download Emuls
Demo Mode
Factory Defaults
Energy Conserve
Automatic Color Adjust
Auto Align Adj
Color Adj State
Enforce Color Order
Color Alignment
Motor Calibration
Paper Prompts
Envelope Prompts
Action for Prompts
Jobs on Disk
Disk Encryption
Wipe Disk
Wipe All Settings
Duplex Gloss
Font Sharpening
Require Standby
UI Automation
Key Repeat Initial Delay
Key Repeat Rate
Clear Custom Status
USB Speed
Automatically Display Error Screens
Exit Config
Front cover locked in place
Printhead verification
Paper Jams
Error jam locations
Clearing jams
Theory of operation
Paper path
Electrophotographic (EP) process
Electrical interlock
REPAIR INFORMATION
Safety information
Data Security Notice
Handling ESD-sensitive parts
Handing the photoconductor unit
Transportation/storage
Handling
Parts not to be touched
Screw and retainer identification table
Adjustments
Printhead alignment
Printer removal procedures
Precautions to take before maintenance work
Cover removals
Front access cover assembly removal
Left cover removal
Operator panel assembly removal (C746)
Operator panel assembly removal (C748)
Operator panel bezel removal
Operator panel buttons removal (C746)
Operator panel buttons removal (C748)
Output bin extension cover removal
Paper tray dust cover removal
Rear frame cover removal
Rear left cover removal
Rear right cover removal
Rear upper cover removal
Right cover removal
Top access cover assembly removal
Top cover assembly removal
Printer removals
5 V interlock switch cable removal
24 V interlock switch removal
Bin full sensor flag removal
Bin full sensor removal
Cartridge cooling fan removal
Cartridge motor 1/fuser cable removal
Cartridge motor 2/3 cable removal
Color on demand assembly removal
Contact springs kit removal
Cooling fan removal
Cooling fan filter removal
Duplex reference edge guide assembly removal
Electrophotographic (EP) drive assembly removal
Front door assembly removal
Front door assembly front cable (left) removal
Front door assembly front cable (right) removal
Fuser removal
Fuser AC cable removal
Fuser DC cable removal
Hard drive assembly removal
High-voltage power supply (HVPS) removal
High-voltage power supply (HVPS) cable removal
Left bell crank assembly removal
Low-voltage power supply (LVPS) removal
Motor driver card removal
Motor driver cable removal
Multipurpose feeder (MPF)/duplex gear and housing removal
Multipurpose feeder (MPF)/duplex motor assembly removal
Multipurpose feeder (MPF)/duplex motor cable removal
Multipurpose feeder (MPF) paper present sensor
MPF pick removal
Operator panel cable removal
Operator panel ground cable removal
Operator panel USB connector cable removal
Option cable removal
Paper pick mechanism assembly removal
Photoconductor unit removal
Pick arm roll removal and replacement
Printer pad removal
Printhead removal, installation, and adjustment
Right bell crank assembly removal
Speaker removal
System board removal
System board support shield removal
Toner level sensor removal
Top cover camshaft assembly removal
Transfer module removal
Transport cable removal
Transport motor cable removal
Waste toner assembly removal
Waste toner HV contact assembly removal
Wireless network antenna removal
Wireless network card removal
Option removals
HCIT media tray assembly removal
HCIT front tray cover removal
HCIT rear cover removal
HCIT right cover removal
HCIT left cover removal
Feed with bushing roller removal
HCIT controller board assembly removal
HCIT drawer slide assembly removal
HCIT elevator motor with sensor removal
HCIT pick arm roll removal
HCIT slide assembly with spring removal
Photointerrupter sensor with cable assembly removal
Top plate assembly removal
CONNECTOR LOCATIONS
Locations
Connectors
System board diagram
Preventive maintenance
Safety inspection guide
Lubrication specifications
Maintaining the printer
Cleaning the exterior of the printer
Cleaning the printhead lenses
Moving the printer
PARTS CATALOG
How to use this parts catalog
Assembly 1: Covers (C746)
Assembly 2: Covers (C748)
Assembly 3: Front
Assembly 4: Right
Assembly 5: Rear
Assembly 6: Left
Assembly 7: Top
Assembly 8: Cable parts packet
Assembly 9: Optional 550-sheet media drawer and tray
Assembly 10: Optional special media tray assembly
Assembly 11: Optional high-capacity input option (HCIT)
Assembly 12: Options and features
Index
Part number index
Numbers of pages: 490.
File Data
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