Lexmark CX421adn CX522ade CX622ade CX625ade CX625adhe MC2325adw MC2425adw MC2535adwe MC2640adwe XC2235 XC4240 Service Manual and Parts Catalog

Machine type / model: 7529‑230 7529‑436 7529‑636 7529‑836 7529‑838 7529‑081 7529‑238 7529‑486 7529‑686 7529‑496 7529‑898

Accurate, clear and concise text, combined with detailed illustrations, lists of error code, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your copier, printer or scanner.
Present service manual and parts list manual Lexmark CX421adn CX522ade CX622ade CX625ade CX625adhe MC2325adw MC2425adw MC2535adwe MC2640adwe XC2235 XC4240 contain clear instructions and procedures on how to fix the problems occurring in your equipment.
To see what contain, please read table of contents:

Product information
Edition notice
Notices, conventions, and safety information
Laser notice
Safety information
General caution statements
Change history
Change history

Printer model configurations
Finding the serial number
Paper support
Supported paper sizes
Supported paper types
Supported paper weights
Tools required for service

Troubleshooting overview
Performing the initial troubleshooting check
Fixing print quality issues
Initial print quality check
Supplies used to resolve print quality issues
Blurred print check
Misaligned color check
Toner easily rubs off check
Gray or solid background check
Solid color or black image check
Blank or white pages check
Horizontal white lines check
Horizontal colored lines or banding check
Text or images cut off check
Mottled print and dots check
Vertical white lines check
Ghost images check
Vertical colored lines or banding check
Dark print check
Missing color check
Uneven print density check
Repeating defects check
Light print check
Skewed print check
Toner patch sensing service check
Auto alignment service check
Paper jams
Avoiding jams
Identifying jam locations
Paper jam in trays
Paper jam in door A
Paper jam in the standard bin
Paper jam in the multipurpose feeder
Paper jam in the manual feeder
Paper jam in door C
200 paper jams
202 paper jams
203 paper jams
231 paper jams
232 paper jams
24y paper jams
28y paper jams
295 paper jams
680 paper jams
User attendance messages
Non-Lexmark supply
31 user attendance errors
32 user attendance errors
33 user attendance errors
34 user attendance errors
42 user attendance errors
43 user attendance errors
80 user attendance errors
82 user attendance errors
84 user attendance errors
88 user attendance errors
Non-supply user attendance errors
Printer hardware errors
100 errors
110 errors
120 errors
121 errors
126 errors
142 errors
151 errors
160 errors
161 errors
162 errors
163 errors
166 errors
167 errors
171 errors
600 errors
602 errors
620 errors
642 errors
651 errors
661 errors
662 errors
663 errors
666 errors
667 errors
Procedure before starting the 9yy service checks
900 errors
91y errors
938 errors
95y errors
96y errors
97y errors
980-984 errors
99y errors
ADF/Scanner hardware errors
84y errors
Other symptoms
Base printer symptoms
Input option symptoms
Service menus
Using the control panel
Lexmark CX421, Lexmark MC2325, and Lexmark MC2425
Lexmark CX522, Lexmark CX622, Lexmark MC2535, Lexmark MC2640, Lexmark
XC2235, and Lexmark XC2240
Lexmark CX625 and Lexmark XC4240
Understanding the status of the power button and indicator light
Using the home screen
Configuring the door interlock bypass jumpers
Diagnostics menu
Entering the Diagnostics menu
Advanced Print Quality Samples
Format Fax Storage
Event Log
Input tray quick print
Printer Setup
Printer diagnostics and adjustments
Scanner Diagnostics
Additional input tray diagnostics
Configuration Menu
Service Engineer menu
Entering Invalid engine mode
Entering the Service Engineer (SE) menu
General SE
Network SE
Fax SE
Scan SE
Parts removal
Data security notice
Removal precautions
Handling ESD-sensitive parts
Controller board/control panel replacement
Restoring the printer configuration after replacing the controller board
Restoring solutions, licenses, and configuration settings
Updating the printer firmware
Backing up eSF solutions and settings
Disconnecting ribbon cables
Ribbon cable connectors
Zero Insertion Force (ZIF) connectors
Horizontal top contact connector
Horizontal bottom contact connector
Vertical mount contact connector
Horizontal sliding contact connector
Low Insertion Force (LIF) connector
Registration adjustment
Scanner Manual Registration
ADF registration adjustment
Flatbed registration adjustment
Entering the TPS characterization data
Removal procedures
Left side removals
Left cover removal
Motor (drive unit) removal
EP drive assembly removal
LVPS removal
Sensor (fuser exit) removal
Right side removals
Right cover removal
Motor (fuser drive) removal
TMC card removal
Sensors (toner patch) removal
Developer unit removal
HVPS removal
Transfer module removal
Imaging kit removal
Toner cartridge contacts removal
Waste toner bottle removal
Waste toner bottle contact block removal
Front removals
Front door removal
Front middle cover removal
Interlock switch cover assembly removal
2.4-inch control panel badge cover removal
4.3-inch control panel badge cover removal
7-inch control panel badge cover removal
4.3-inch control panel bezel removal
7-inch control panel bezel removal
2.4-inch control panel top cover and control panel removal
4.3-inch control panel removal
7-inch control panel removal
2.4-inch control panel keypad removal
Front bracket cover removal
Speaker (MC2325, CX421, MC2425) removal
Speaker (CX522, CX622, CX625, XC2235, XC4240, MC2535, MC2640) removal
Weather station removal
Wireless card removal
Fuser removal
Bottom removals
Pick tires removal
Lower left frame removal
Lower right frame removal
Sensor (duplex) removal
Transfer module guide removal
Sensor (tray present) removal
Tray 1 media feeder removal
Rear side removals
MFP cable cover removal
System fan removal
Rear cover removal
Controller board removal
Top side removals
Top cover removal
Output bin and paper bail removal
MFP toner cover removal
MFP link removal
Release lever removal
Bin full flag removal
MFP fuser deflector flag removal
Sensor (narrow media) removal
Narrow media sensor flag removal
Printhead removal
Redrive unit removal
Right output bin deflector removal
ADF/scanner removals
ADF assembly removal (SADF/RADF)
ADF assembly removal (DADF)
ADF tray removal
ADF separator roller removal
ADF separator pad removal
ADF top cover removal
Scanner front cover removal
Scanner right cover removal
Flatbed scanner assembly removal
Flatbed pivot link (rear right) removal
Flatbed pivot link (front left) removal
Options removals
650-sheet duo tray insert removal
650-sheet duo tray removal
Dust cover removal
Pick tire removal

Printer configurations
Controller board connectors
Motor locations
Sensor locations
ADF sensor locations

Inspection guide
Scheduled maintenance
Maintenance kits
Resetting the maintenance counter
Cleaning printer parts
Cleaning the printer
Cleaning the scanner
Cleaning the printhead lenses

Assembly 1: 2.4-inch control panel
Assembly 2: 4.3-inch and 7-inch control panel
Assembly 3: Covers
Assembly 4: Paper path and frame
Assembly 5: Electronics
Assembly 6: Cables and sensors
Assembly 7: Scanner
Assembly 8: ADF
Assembly 9: Option trays
Assembly 10: Miscellaneous

Power consumption
Product power consumption
Sleep Mode
Hibernate Mode
Off mode
Total energy usage
Selecting a location for the printer
Noise emission levels
Temperature information
Enabling the security reset jumper

Available internal options
Installing optional trays
Adding available options in the print driver
Input/output configurations and capacities

Paper path and transport components
Paper path information
Transport components
Print engine theory
Electrophotographic process (EP process)
Electrophotographic process basics
ADF and flatbed scanner theory
DADF paper path
DADF paper path sensors
RADF paper path
RADF paper path sensors
Flatbed scanner drive
Color theory
Color theory


Part number index
Part name index

Lexmark CX421adn CX522ade CX622ade CX625ade CX625adhe MC2325adw MC2425adw MC2535adwe MC2640adwe XC2235 XC4240 CX421 CX522 CX622 CX625 MC2325 MC2425 MC2535 MC2640 XC2235 XC4240 7529‑230 7529‑436 7529‑636 7529‑836 7529‑838 7529‑081 7529‑238 7529‑486 7529‑686 7529‑496 7529‑898 MFPs