HP LaserJet Pro MFP M435nw Service Manual and Parts List Manual

This Service Manual contain: Repair Manual and Troubleshooting Manual HP LaserJet Pro MFP M435nw.
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 contain clear instructions and procedures on how to fix the problems occurring in your equipment.
The information contained in this repair manual is necessary for the repair, but also prevention, resulting in a longer life of your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
To see what contain, please read table of contents:

Content for REPAIR & PARTS LIST:
Removal and replacement strategy
Required tools
Types of screws
Service approach
Before performing service
After performing service
Parts removal order
Customer self-repair parts
Tray 1 roller kit
Tray 2 roller kit
Tray 3 roller kit
Transfer roller
External doors, covers, and panels
Right cover assembly
Lower back cover
Rear-cover assembly
Top cover
Left cover
Face-down cover
Tray 2
Tray 3
Right front cover
Right cassette cover
Right handle cover
Multi-purpose tray cover assembly
Cartridge door assembly
Scanner subassembly (SSA)
Scanner subassembly (SSA) lid
Control panel
Internal assemblies
Fuser motor
Right fan
Left fan
Registration unit
Paper-feed assembly
Printed circuit assemblies (PCAs)
DC controller PCA
Formatter and Wi-Fi PCAs
High-voltage power supply
Low-voltage power supply PCA
Duplexer left cover
Duplexer right cover
Duplexer top cover
Duplexer rear cover
Duplex drive assembly
Duplexer driver PCA
Duplexer fan
Registration sensor photoreceiver assembly
Registration sensor LED assembly
500-sheet feeder
500-sheet feeder front cover
500-sheet feeder left cover
500-sheet feeder right cover
500-sheet feeder cassette cover
500-sheet feeder paper-pickup unit
500-sheet feeder lifter drive unit
500-sheet feeder drive unit
500-sheet feeder drive PCA
500-sheet feeder pickup motor

Order parts by authorized service providers
Service kit parts
Whole-unit replacement part numbers
Supplies and accessories part numbers
Related documentation and software
How to use the parts lists and diagrams
Fasteners used in this product
Assembly locations
SSA and control panel
Internal components
500-sheet feeder, cassette, external panels and covers
500-sheet feeder internal components
Duplexer external covers
Duplexing main body
Alphabetical parts list
Numerical parts list


Basic operation
Major systems
Product block diagram
Engine control system
DC controller
Low-voltage power supply (LVPS)
Overcurrent/overvoltage protection
Fuser control
Fuser-heater protective function
Fuser control functions

Solve problems checklist
Menu map
Troubleshooting process
Pre-troubleshooting checklist
Determine the problem source
Troubleshooting flowchart
Power subsystem
Power-on checks
Power-on troubleshooting overview
Control panel checks
Tools for troubleshooting
Engine self-test
Troubleshooting process for product not turning on
Block diagrams
Location of connectors
DC controller connections
Paper feed driver PCA connections
Duplex driver PCA connections
Plug and port locations
Locations of major assemblies
Switch locations
Sensor locations
500-sheet paper feeder accessory
Duplex unit
General timing chart
Circuit diagrams
Use HP Device Toolbox (Windows)
Internal print-quality test pages
Clean the paper path
Print the configuration page
Print quality troubleshooting tools
Repetitive defects ruler
Control panel menus
Setup Menu
HP Web Services
Reports menu
Self Diagnostics menu
System Setup menu
Service menu
Network Setup menu
Quick Forms menu
Function specific menus
USB Flash Drive
Copy Menu
Scan Menu
Interpret control panel messages
Control panel message types
Control panel messages
Rear door open
49 Error, Turn off then on
50.x Fuser Error
51.XX Error
54.XX Error
55.X Error
57 Fan Error, Turn off then on
59.X Error
79 Error Turn off then on
Black Cartridge Low
Black Very Low
Device error, press OK
Front door open
Genuine HP supply installed
Invalid driver Press OK
Jam in Tray 1, Clear jam and then press OK
Load Tray 1 Press OK for available media
Load Tray 1 , Press OK to use available media
Load Tray 1, / Cleaning mode, OK to start
Manual Duplex Load Tray 1, Press OK
Manual feed , Press OK to use available media
Memory is low. Press OK
Misprint, Press OK
Print failure, press OK. If error repeats, turn off then on
Tray 1 To change the tray paper size, press [Modify] To accept
the current value,press [OK]
Unexpected size in Tray 1 Load Press OK
Event-log messages
Print the event log
Show an event log
Event log messages
Clear jams
Solve paper feed or jam problems
The product does not pick up paper
The product picks up multiple sheets of paper
Frequent or recurring paper jams
Prevent paper jams
Clear jams in Tray 1
Clear jams in Tray 2
Clear jams in Tray 3 (accessory)
Clear jams in the toner-cartridge area
Clear jams in the rear door and fuser area
Clear jams in the output bin
Clear jams in the optional duplexer
Paper feeds incorrectly or becomes jammed
The product does not pick up paper
The product picks up multiple sheets of paper
Prevent paper jams from the paper trays
Solve image-quality problems
Image defect examples
Clean the product
Clean the pickup and separation rollers
Clean the paper path
Clean the scanner glass strip and platen
Clean the touchscreen
Solve performance problems
Solve connectivity problems
Solve USB connection problems
Solve wired network problems
Poor physical connection
The computer is using the incorrect IP address for the product
The computer is unable to communicate with the product
The product is using incorrect link and duplex settings for the network
New software programs might be causing compatibility problems
The computer or workstation might be set up incorrectly
The product is disabled, or other network settings are incorrect
Solve wireless network problems
Wireless connectivity checklist
The product does not print after the wireless configuration completes
The product does not print, and the computer has a third-party firewall installed
The wireless connection does not work after moving the wireless router or
Cannot connect more computers to the wireless product
The wireless product loses communication when connected to a VPN
The network does not appear in the wireless networks list
The wireless network is not functioning
Perform a wireless network diagnostic test
Reduce interference on a wireless network
Service mode functions
Service menu
Service menu settings
Restore the factory-set defaults
Secondary service menu
Open the secondary service menu
Secondary service menu structure
Product resets
NVRAM initialization
Super NVRAM initialization
Product updates
Manually update the firmware
Set the product to automatically update the firmware

Appendix A: Service and support
Hewlett-Packard limited warranty statement
HP’s Premium Protection Warranty: LaserJet toner cartridge limited warranty statement
HP policy on non-HP supplies
HP anticounterfeit Web site
Data stored on the toner cartridge
End User License Agreement
Customer self-repair warranty service
Customer support
Appendix B: Product specifications
Physical specifications
Power consumption, electrical specifications, and acoustic emissions
Environmental specifications

Appendix C: Regulatory information
FCC regulations
Environmental product stewardship program
Protecting the environment
Ozone production
Power consumption
Toner consumption
Paper use
HP LaserJet print supplies
Return and recycling instructions
United States and Puerto Rico
Multiple returns (more than one cartridge)
Single returns
Non-U.S. returns
Material restrictions
Disposal of waste equipment by users
Electronic hardware recycling
Chemical substances
Material Safety Data Sheet (MSDS)
For more information
Declaration of conformity
Certificate of Volatility
Safety statements
Laser safety
Canadian DOC regulations
VCCI statement (Japan)
Power cord instructions
EMC statement (China)
Power cord statement (Japan)
EMC statement (Korea)
EMI statement (Taiwan)
Laser statement for Finland
GS statement (Germany)
Substances Table (China)
Restriction on Hazardous Substances statement (Turkey)
Restriction on Hazardous Substances statement (Ukraine)
Eurasian Conformity (Belarus, Kazakhstan, Russia)
Additional statements for wireless products
FCC compliance statement-United States
Australia statement
Brazil ANATEL statement
Canadian statements
Products with 5 GHz Operation Industry of Canada
Exposure to Radio Frequency Radiation (Canada)
European Union regulatory notice
Notice for use in France
Notice for use in Russia
Mexico statement
Taiwan statement
Korean statement
Vietnam Telecom wired/wireless marking for ICTQC Type approved products

Number of pages: 326.