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Lexmark X925, Service Manual & Parts List

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Lexmark X925, Service Manual & Parts List
17.2298 MB PDF File

Machine type: 7541-03x.

Service Manual & Parts List Lexmark X925;
This service manual, is the full Lexmark X925 Service Repair Manual.
This manual, Lexmark X925, is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Lexmark X925 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 X925 photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:

Notices and safety information
Safety information

Preface
Navigation buttons
Change history
Conventions

GENERAL INFORMATION
Maintenance approach
Models
Printer configurations
Options and features
Print engine specifications
Power specifications
Electrical specifications
Clearances
Acoustics
Environment
Performance
Processor
Memory
Paper specifications
Paper sizes supported by the printer
Media types
Media weights
Media guidelines
Paper
Paper characteristics
Unacceptable paper
Selecting paper
Scan fax and copy specifications
General specifications
Fax features
Scanner specifications
MFP scan speed
Tools required for service
Acronyms

DIAGNOSTIC INFORMATION
Start
Safety feature notice
Flatbed / ICC card NVRAM
Initial check
POR (Power-On Reset) sequence
Print quality issues
Repeating defects
One color missing
Contaminated background
Lowered print density
White stripes
Uneven print
Partial dirt
Repeating marks
Black stripes
Unprinted spots
Partially dark or light print
Black page
No print
Stain on back of page
Failure to fuse
Stains on edge of page
ADF & scanner print quality
Image quality symptoms:
Dark image quality (using ADF or Scanner)
Vertical lines (process direction using the ADF)
Spots (using flatbed scanner)
Skew (using ADF)
Media damage (using ADF)
Black page from scanner
Paper jams
Clearing and troubleshooting paper jams
200 paper jam
201 paper jam
203 paper jam
230 paper jam
231-39 paper jam
24x paper jam
250 paper jam
Duplex unit service check
Paper path service checks
Paperfeed unit service check
MPF service check
Clearing and resolving scanner jams
280.06 Paper missing
283.01 Scanner static jam - Scan sensor jam
283.05 Scan sensor jam
285.05 Scanner ADF eject jam
290.11 Scanner ADF cover open jam
291.06 Flatbed cover open
292.01 Scanner carriage locked
ADF paper jam service check
Error codes
149.01 Abnormal exit motor
941.05 Abnormal EEPROM
https://www.tradebit.com Service NCVRAM Mismatch
https://www.tradebit.com Service NV Failure
https://www.tradebit.com Service NVRAM Failure
https://www.tradebit.com Service NVRAM Failure
955.00 Service Code CRC
https://www.tradebit.com Service System Board
https://www.tradebit.com Service System Board
https://www.tradebit.com Service NAND Failure
959,xx Service Invalid Firmware
https://www.tradebit.com Service Memory Error
https://www.tradebit.com Service Memory Error
https://www.tradebit.com Service Emulation Error
https://www.tradebit.com Standard network or Network Card X
https://www.tradebit.com Standard network or Network Card X
https://www.tradebit.com Service
https://www.tradebit.com Service
https://www.tradebit.com Service Card
Fax T30 log error codes
Service checks
111.01 Black printhead error
112.01 Cyan printhead error
113.01 Magenta printhead error
114.01 Yellow printhead error
121.01 Thermistor 1 error
121.02 Thermistor 2 error
121.03 Thermistor 3 3 error
121.04 Belt thermistor error
121.05 Fuser - fuser heater error
ON / OFF switch automatically switching to the Off position service check
https://www.tradebit.com Power switch error
https://www.tradebit.com High voltage power supply error
132.00 Density sensor error
https://www.tradebit.com Abnormal theta sensor
https://www.tradebit.com Temperature humidity sensor error
140 Drive motor error
149.01 Fuser / paper exit motor error
146.01 Tray1error
146.03 Tray 3 error
146.04 Tray 4 error
146.05 Tray 5 error
171.01 Fuser fan error
172.01 - Power supply unit fan error
173.01 - Main unit fan error
174.01 Rear fan error
840.03 service check
841.00 Invalid configuration or ASIC not found
841.01 Invalid AFE setting
841.02 Delayed interrupt detected
841.03 Failed indirect register test
841.04 Failed external DRAM test
841.05 Image pipe time-out
841.06 Scanner did not initiate scan
842.00 No response / 842.01 HW protocol / 842.02 Logical protocol
843.00 Carriage Home
843.03 Pick roll failed to engage
844.00 Lamp failure (Front side)
849.01 Device had modem installed, but config ID indicates it should not
849.10 Device had HD installed, but config ID indicates it should not
Steps before starting the 9yy service checks
A. Collecting the history information from the SE menu
B. Collecting the firmware logs (Fwdebug and https://www.tradebit.com) from the SE menu
C. Collecting the settings from the menu settings page
D. Collecting information from the user
https://www.tradebit.com System software error
941.01 SDRAM R/W error
941.02 MDC error
941.03 CPU error
941.04 MDC controller error
941.05 EEPROM error
950.00�950.29�EPROM mismatch failure
https://www.tradebit.com Service invalid firmware error
User attendance messages
User prompts
User attendance messages (0�99)
Other symptoms
Print engine
Scan / copy
ADF streaks
Clipped image when scanning to USB from the ADF
ADF cover open service check
Fax symptoms
Faxes fail to transmit
Fax reception fails
Escalating a fax issue to second-level support
Words on fax are stretched
Incoming fax has blank spaces or poor quality
No dial tone
Fax dials a number, but no connection is made
Other service checks
Networking service check
Option card service check
USB port service check
False close door service check
Operator panel service check
Display functions but the keyboard doesn�t work properly
Display fails to illuminate
Insert tray service check
Paper skew service check
Imaging unit (photo developer) missing service check
Option card service check
Serial port
Flash options
DRAM options
Hard disk option
Network card option
Error code 976 - Network card x
54 Network Software error
Power supply (Dead machine) service check
Printhead service check
Transfer belt up down check
Unable to print from USB thumb drive service check
Waste toner bottle missing service check
Wrong paper size service check - tray1
Wrong paper size service check - tray2
Paper in ADF size service check

DIAGNOSTIC AIDS
Understanding the operator panel and menus
Operator panel (need new art)
Understanding the home screen
Using the touch screen
Administrative menus
Accessing the service menus
Configuration Menu
Entering Config Menu
Reset Separator Roll and Pick Assembly Counter
Reset Fuser Counter
Reset Maintenance Counter
Reset Transfer Belt Counter
USB Scan to Local
Black Only Mode
Print Quality Pages
Fuser Speed
Reports
Color Trapping
Tray Insert Message
SIZE SENSING
Panel Menus
PPDS Emulation
Download Emuls
Demo Mode
Factory Defaults
Energy Conserve
Fax Low Power Support
Min Copy Memory
NumPad Job Assist
Format Fax Storage
Fax Storage Location
Auto Align Adj
Color Alignment
ADF Edge Erase
FB Edge Erase
Scanner Manual Registration
Disable Scanner
Paper Prompts
Envelope Prompts
Action for Prompts
Jobs On Disk
Disk Encryption
Erase all information on Disks
Wipe All Settings
Font Sharpening
Require Standby
UI Automation
Key Repeat Initial Delay
Key Repeat Rate
Clear Custom Status
USB Speed
USB PnP
Automatically Display Error Screens
Exit Config Menu
Diagnostics mode
Entering Diagnostics mode
Diagnostic mode menus
SCANNER CALIBRATION
Adjust Calibration Values
Reset Calibration Values
PRINT TESTS
Print Tests (input sources)
Print Quality Pages
HARDWARE TESTS
Panel Test
Button Test
DRAM Test
Serial Wrap Test
USB HS Test Mode
DEVICE TESTS
Quick Disk Test
Disk Test/Clean
Flash Test
Input Tray Tests
PRINTER SETUP
Defaults
PAGE COUNTS
Serial Number
Engine Setting (1-16)
Model Name
Configuration ID
Cal Ref Adj
Par 1 Strobe Adj
REPORTS
EVENT LOG
Display Log
Print Log
Clear Log
SCANNER TESTS
Scanner Calibration Reset
ASIC Test
Feed Test
Sensor Test
ADF Magnification
EXIT DIAGNOSTICS
Theory of operation
Printer engine
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 components
Paper feed
Feeding paper from a tray
Feeding paper from the MPF
Scanner
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 doesn't 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?

REPAIR INFORMATION
Handling ESD-sensitive parts
Flatbed / ICC card NVRAM
RIP board/operator panel replacement
Printhead controller board / engine board replacement
eSF solutions backup
Removal procedures
Arrangement of removals in this chapter
Cover Removals
RIP cover
Scanner power supply access cover
Cord cover
Rear cover
Front op panel cover
Op panel top cover
Op panel bottom cover
Upper right cover
Output bin (print engine top) cover
Back cave cover
Inner right cover
Left cover removal
Speaker removal
Top removals
Output bin full sensor actuator removal
LED assembly removal
LED print head removal
Op panel paper exit guide removal
Paper exit guide removal
Bin full sensor removal
Paper exit sensor removal
Printhead controller board removal
Top EMI sheild removal
Front removals
Transfer belt - CRU
Transfer belt position sensor removal
Paper size sensor removal
Photoconductor lock removal
Cassette stopper removal
Left side removals
Left EMI shield removal (not a FRU)
Low volt power supply removal
Main fan removal
Power supply fan removal
Theta sensor removal
Density sensor removal
Main switch
Scanner power supply removal
Right side removals
Fuser removal
Handle cover removal
Duplex removal
Paper feed unit removal
Transfer Roll - CRU
Rear removals
RIP board removal
Crossbar removal (not a FRU)
Engine board and mount removal (not a FRU)
Drive unit cover (not a FRU)
Drive unit
Drive unit motor C/M/Y/K
Sub drive unit removal
Door interlock switch removal
Duplex solenoid removal
Fuser entry sensor removal
Engine board (MDCONT)
Fuser Fan
Fuser exit drive unit motor removal
Modem removal
Papertray lift motor removal
RIP cage removal
Toner sensor removal
Transfer belt motor removal
Temperature and humidity sensor removal
Rear fan
Sub frame unit
Paper size switch removal
Rear EMI shield - Not a FRU
Paper feed motor removal
HVPS removal
Waste toner sensor removal
Scanner area removals
ADF assembly removal
ADF pick roll removal
ADF separator roll removal
Flatbed assembly removal
Flatbed front cover
UICC removal
Touchscreen assembly removal
ADF relay board
ICC board
CCD chassis
CCD belt
Optical paper size sensor
ADF cable
ADF motor frame
ADF solenoid
ADF drive clutch
ADF input tray
ADF main feeder
ADF clutch
ADF hinge
FB hinge
Tray paper size sensors
ADF cover open / ADF pick sensor
ADF cover open sensor actuator
Paper present / paper in sensor
Paper present sensor actuator
Paper in sensor actuator
Paper path sensor
Scan sensor
Scan sensor actuator
Scan sensor cover (not a fru)
Duplex timing sensor
Duplex out (scan out) sensor
Duplex out sensor actuator
Flatbed cover closed sensor
Flatbed upper cover
Flatbed scanner cables removal
Outer ADF top cover
Inner ADF top cover
ADF relay card cover
Left ADF cover
Right ADF cover
Duplex unit component removals
Duplex clutch removal
Duplex timing belt removal
Duplex exit / MPF sensor removal
MPF clutch removal
MPF tray assembly removal
Paperfeed unit component removals
Separating the MPF tray and main tray paperfeed units
Main tray paper guide removal
Multi-purpose feed tray paper guide removal
Paperfeed unit clutch removal
Registration sensor (MPF tray) removal
Registration sensor actuator removal
Static discharge brush removal
Torque limiter removal
Upper and lower registration springs removal
Paperfeed maintenance kit removals
Pick roll removal
Paperfeed roll removal
Separator roll removal
Registration roll removal
MPF roll removal
MPF pad removal
Exit guide (paper exit) roll removal
Option paper feed removals
Paper feed roll removal
Pick roll removal
Separator roll removal
Paper size switches removal
Paper level sensor removal
Transport sensor removal
Paper empty sensor removal
Paper full sensor removal
Option controller board removal
Stepper motor removal
Tray lift motor removal
Option door inter lock switch removal
Paper feed clutch removal
Adjustments
Calibrating the scanner
Calibrating the scanner black levels
Adjusting ADF magnification
Adjusting scanner registration

LOCATIONS
Locations
Print engine cross section
Flatbed / ADF sensors
ADF
Flatbed Sensors
Rip Board connectors
Scanner (secondary) power supply
Scanner ICC board connectors
ADF relay card connectors
UICC connectors
Option feeder locations
Option feeder layout
Option board layout
Option board connector values

PREVENTIVE MAINTENANCE
Safety inspection guide
Lubrication specifications
Scheduled maintenance

PARTS CATALOG
How to use this parts catalog
Assembly 1: Covers
Assembly 2: Flatbed and ADF
Assembly 3: Flatbed
Assembly 4: ADF 1
Assembly 5: ADF 2
Assembly 6: Duplex components 1
Assembly 7: Duplex components 2
Assembly 8: Paper exit
Assembly 9: Base 1
Assembly 10: Base 2
Assembly 11: Base 3
Assembly 12: Paper feed
Assembly 13: Electrical 1
Assembly 14: Electrical 2
Assembly 15: Upper assembly
Assembly 16: Printhead controller board cables
Assembly 17: Paper trays
Assembly 18: Fuser
Assembly 19: 550 sheet option feeder covers
Assembly 20: 550 sheet option feeder base
Assembly 21: 550 sheet option feeder paper feed
Assembly 22: 550 sheet option feeder tray
Assembly 23: Maintenance kits, power cords, and options
Index
Part number index

Number of pages: 500.


(ID 278703742)

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