HP LaserJet M9040, M9050 MFP Series, Service Manual & Parts List

Service Manual & Parts List HP Laserjet M9040, M9050 MFP;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your HP Laserjet M9040, M9050 MFP 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 HP Laserjet M9040, M9050 MFP photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:

1. Product basics
Product introduction
Product features
Product walkaround
Output devices
3,000-sheet stacker
3,000-sheet stapler/stacker
Paper handling features
Stapling information
Multifunction finisher
Paper handling features
Stapling information
8-bin mailbox

2. Control panel
Use the control panel
Control-panel layout
Home screen
Buttons on the touchscreen
Control-panel help system
Use the Administration menu
Navigate the Administration menu
Information menu
Default Job Options menu
Default Options for Originals
Default Copy Options
Default Fax Options
Default E-mail Options
Default Send to Folder Options
Default Print Options
Time/Scheduling menu
Management menu
Initial Setup menu
Networking and I/O
Fax Setup
E-mail Setup
Send Setup menu
Device Behavior menu
Print Quality menu
Troubleshooting menu
Resets menu
Service menu

3. Paper and print media
Understand paper and print media use
Supported paper and print media sizes
Custom paper sizes
Special paper or print media guidelines
Load paper and print media
Load Tray 1
Load Trays 2, 3, and 4
Configure trays
Configure a tray when loading media
Configure a tray by using the Supplies Status button on the touchscreen
Select the media by source, type, or size
Type and Size
Select the output bin
Select an output location

4. Manage and maintain
Information pages
Embedded Web server
Open the embedded Web server by using a network connection
Embedded Web server sections
HP Easy Printer Care
Supported operating systems
Open the HP Easy Printer Care software
HP Easy Printer Care software sections
Use HP Web Jetadmin software
HP Printer Utility for Macintosh
Open the HP Printer Utility
Print a cleaning page
Print a configuration page
View supplies status
Order supplies online and use other support features
Upload a file to the product
Update the firmware
Activate the two-sided printing (duplexing) mode
Lock or unlock storage devices
Save or print stored jobs
Configure trays
Change network settings
Open the embedded Web server
Set up e-mail alerts
Security features
Secure the embedded Web server
Secure Disk Erase
Data affected
Gain access to Secure Disk Erase
Additional Information
Security lock
Lock the control-panel menus
Set the real-time clock
Clean the product
Print a cleaning page
Clean the product hardware
Clean the ADF delivery system
Configure alerts
Manage supplies
HP print cartridges
Non-HP print cartridges
Print cartridge authentication
HP fraud hotline
Print cartridge storage
Print cartridge life expectancy
Check the print cartridge life
Control panel
Embedded Web server
HP Easy Printer Care
HP Web Jetadmin
Printer maintenance kit
Manage memory
Determine memory requirements
Install memory
Verify memory installation
Economy settings
Sleep and wake

5. Theory of operation
Basic operation
Sequence of operation
Product start up sequence (turn on product)
Timing chart
Scanner subsystem
Mechanical structure
Motors and fans
Basic block diagram
Basic system configuration
Scanner unit systems
Scan mode
Power supply assembly
Sleep mode
Low-voltage power supply circuit
Protective functions
Scanner controller circuit
Flatbed operation
Flatbed document exposure control
Flatbed optical drive control
Flatbed optical unit operation
Flatbed document size detection
ADF operation
ADF document exposure control
ADF document feed control
ADF document size detection
ADF feeder sensors
ADF document skew detection
Scanned data flow
Copy processor
Scanning process control signals
Typical scanning process flow
Engine control system
DC controller PCA
High-voltage power supply circuit
Low-voltage power supply
Fuser control circuit
Formatter system
Formatter hardware
Laser/scanner system
Image formation system
The image formation process
Print cartridge
Print cartridge design
No-shake toner
Cartridge memory
Toner seal
Toner level detection
Pickup and feed system
Media-size detection
Media-level detection
Multifeed prevention
Transparency media detection
Fuser-wrapping jam detection
Jam detection
Tray 1
Tray 1 driver PCA
Tray 1 power supply
Tray 1 sequence of operation
Tray 1 pickup and feed
Tray 1 jam detection
Tray 4
Tray 4 driver PCA
Tray 4 power supply
Tray 4 sequence of operation
Tray 4 pickup and feed
Tray 4 media level and media size detection
Tray 4 jam detection

6. Removal and replacement
Removal and replacement strategy
Repair notices
Electrostatic discharge
Required tools
Product orientation
Front and right side orientation
Back and left side orientation
Scanner assembly covers
Control panel
Reinstall the control panel
ADF feeder cover
Reinstall the ADF feeder cover
ADF feeder cover handle
ADF back cover
ADF front cover
Lower delivery roller cover
Reinstall the delivery roller cover
White board cover
Copy processor/connect board
Reinstall the copy processor/connect board
Flatbed rail cover
Flatbed back cover
Flatbed right cover
Reinstall the flatbed right cover
Flatbed left cover
Flatbed upper front cover
Flatbed lower front cover
ADF base cover assembly
Reinstall the ADF base cover assembly
Scanner glass
Reinstall the scanner glass
Scan engine internal assemblies
ADF and flatbed internal assemblies
ADF main assembly
Reinstall the ADF main assembly
ADF optical assembly
Reinstall the ADF optical assembly
ADF shading filter
Flatbed optical unit
Reinstall the flatbed optical unit
Switch and solenoids
ADF feeder cover detection switch
Weight solenoid
Shutter solenoid
Motors and fans
Pickup motor
Reinstall the pickup motor
Delivery motor
Flatbed motor
Reinstall the flatbed motor
Power supply assembly
Reinstall power supply assembly
ADF fan assembly
Reinstall the ADF fan assembly
Flatbed fan assembly
Rollers and belts
Pickup roller (D roller)
Pickup roller assembly
Reinstall the pickup roller assembly
Feed roller assembly
Lower registration roller assembly
Reinstall the lower registration assembly
Lower delivery roller
Reinstall the lower delivery roller
Upper delivery roller assembly
Reinstall the upper delivery roller assembly
Separation belt assembly
Reinstall the separation belt assembly
Separation belts
Reinstall the separation belts
ADF intermediate PCA
ADF width detection sensor assembly
Reinstall the ADF width detection sensor assembly
Flatbed intermediate PCA
Scanner controller board
Intermediate PCA
Scan engine
Reinstall the scan engine
Laser/scanner assembly
Delivery fan assembly
Delivery motor
Print engine covers
Front cover
Right door
Right lower cover
Left upper cover
Reinstall the left upper cover
Left door and diverter
Left back cover
Back cover
Right and left rail covers
Front assemblies
Cartridge release lever
Print cartridge
Reinstall the print cartridge
Transfer-roller assembly
Reinstall the transfer-roller assembly
Tray 2 and Tray 3 (interchangeable)
Rollers (pickup, feed, or separation)
Fuser-jam-removal knob
Reinstall the fuser-jam-removal knob
Registration-jam-removal knob
Reinstall the registration-jam-removal knob
Right assemblies
Tray 1
Paper-input unit (PIU)
Reinstall the paper-input unit
Registration assembly
Reinstall the registration assembly
Transfer-guide assembly
Reinstall the transfer-guide assembly
Left assemblies
Fuser assembly
Back assemblies
Low-voltage power supply
High-voltage power supply
DC controller
Toner-sensor contact assembly
Reinstall the toner-sensor contact assembly
Drum motor
Feed-drive assembly
Reinstall the feed-drive assembly
Power-supply fan (fan 1)
Cartridge fan (fan 5)
Reinstall the cartridge fan
Controller fan (fan 2)
Jetlink connector
Duplexer connector holder assembly
Fuser delivery-drive assembly
Reinstall the fuser delivery assembly
Tray 4
Tray 4 left side cover
Reinstall the Tray 4 left side cover
Tray 4 right side cover
Reinstall the Tray 4 right side cover
Tray 4 back covers
Tray 4 center back cover
Tray 4 right back cover
Tray 4 left back cover
Tray 4
Tray 4 rollers (pickup, feed, and separation)
Reinstall the Tray 4 rollers
Tray 4 registration assembly
Tray 4 drive motor
Tray 4 drive assembly
Tray 4 controller board
Paper-size detection switch PCA
Reinstall the paper-size switch PCA
Tray 4 power supply
Tray 4 pickup assembly
Tray 4 paper-connecting unit

7. Solve problems
Troubleshooting process
Preliminary operating checks
Installation environment
Media checks
Scanner and ADF checks
General troubleshooting information
Abnormal noises are evident, such as grinding or chattering when the main motor is
turned on
Media does not feed from Tray X when printing from a software program; the paperpath
test is successful
Media does not print from Tray 4
The product stops printing and hangs on certain jobs
Envelopes are wrinkling
Fusing is poor
The product feeds from an incorrect tray when different media is selected for the first
page of the job
Power-on checks
Malfunction troubleshooting
Troubleshooting by using control-panel messages
Event log page
Print the event log
Interpret the event log
Sample event log
View the event log
Control-panel error messages
User- and service-level diagnostics
Copy processor LEDs
Troubleshooting menu
Paper-path test
Print a paper-path test
Service test
Perform a service test
Service-level diagnostics
Engine test
Service menu
Other diagnostics
Boot-up key sequences
Low-level boot-up key sequence for selecting a language, performing a cold
reset, and enabling and disabling embedded LAN
Medium-level boot-up key sequence for initializing disks
High-level boot-up key sequence for NVRAM initialization, manufacturing,
and skipping disk-load and calibration
Drum rotation functional check
Control panel touchscreen calibration
Simplified scanner and ADF calibration
ADF calibrations
Left side front calibration
Left side back calibration
Leading edge front calibration
Leading edge back calibration
ADF plain scaling calibration
ADF heavy scaling calibration
Glass calibrations
Left side glass calibration
Leading edge glass calibration
Glass scaling calibration
Plain motor speed calibration
Measurement and adjustment
ADF unit height adjustment
ADF skew adjustment
ADF width sensor adjustment
Weight solenoid stroke adjustment
Tray 4 diagnostics
Motor test
Standalone running test
Sensor test
Light-pattern interpretation
Clear jams
Jam locations
ADF jams
Clear jams from the duplexer
Clear jams from the input-tray areas
Clear jams from the output areas
Solve repeated jams
Image-formation troubleshooting
Print image defects
Print/stop test
Copy-image defects
Scanner controller PCA
Connector locations
Electrical structure
Wiring diagrams
Image-defect tables
Repeating defect ruler
Media troubleshooting
Determine the problem source
Isolate the paper path
Try using the straightest paper path
Check the duplexing path
Isolate the source of a jam
Determine the location of a jam
Determine whether the product is experiencing misfeeds or multifeed
Isolate a media brand
Isolate a media type
Communication troubleshooting
Communications check
EIO troubleshooting
Jetdirect configuration
Embedded LAN troubleshooting
Error codes
LAN diagnostics
Wiring diagrams

8. Parts and diagrams
Order parts, accessories, and supplies
Supplies part numbers
Consumables, supplies, accessories, FRUs, and documents
Common hardware
Illustrations and parts lists
Scanner assembly
Scanner engine covers and panels
Print engine covers and panels
Flatbed scanner assembly
Flatbed optical assembly
ADF scanner assembly
ADF paper pickup assembly
ADF main assembly
ADF optical assembly
Scanner engine PCAs
Left door and diverter
Right cover assembly
Print engine internal components
Drum feed drive assembly
Fuser delivery drive assembly
Cartridge lifter assembly
500-sheet trays (Tray 2 and Tray 3)
Paper input unit
Registration assembly
Transfer roller assembly
Delivery assembly
PCA locations
Tray 4 main body
Tray 4 drive assembly
Tray 4 PCA location
Tray 1 assembly
Alphabetical parts list
Numerical parts list

Appendix A Service and support
Hewlett-Packard limited warranty statement
Customer self repair warranty service
Print cartridge limited warranty statement
HP Customer Care
Online Services
Telephone support
Software utilities, drivers, and electronic information
HP direct ordering for accessories or supplies
HP service information
HP service agreements
HP Easy Printer Care
HP support and information for Macintosh computers

Appendix B Specifications
Physical specifications
Electrical specifications
Acoustic emissions
Operating environment

Appendix C Regulatory information
FCC regulations
Declaration of conformity
Certificate of volatility
Types of memory
Volatile memory
Non-volatile memory
Hard-disk-drive memory
Safety statements
Laser safety
Canadian DOC regulations
VCCI statement (Japan)
Power cord statement (Japan)
EMI statement (Korea)
EMI statement (Taiwan)
Laser statement for Finland
Substances table (China)

Number of pages: 586.