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HP LaserJet 9000, LaserJet 9040, LaserJet 9050, Service Manual & Parts List
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your HP LaserJet copier.
You can print, zoom or read any diagram, picture or page from this Service Manual & Parts List. 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 9000, LaserJet 9040, LaserJet 9050 photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:
1. Product information
Product features of the HP LaserJet 9000 Series printers
Product features of the HP LaserJet 9040/9050 Series printers
Product specifications
Product overview
External view of the printer and accessories
Interface connections
Optional accessories
Regulatory information
Regulatory requirements
FCC regulations
Declaration of conformity
Environmental product stewardship program
Service approach
Parts and supplies
Warranty
Limited warranty for print-cartridge life
2. Product requirements
Site requirements
Operating environment
Space requirements
Media specifications
Guidelines for selecting print media
Special media specifications
Storing print media
Media input/output options
Trays, bins, and paper handling
Supported sizes of paper for input and output
3. Product configuration
Using the control panel
Control-panel buttons
Numeric keypad commands
Settings and defaults
Setting the display language
Setting the tray registration
Printer driver information
Control-panel menus
Using a menu map
Retrieve job menu
Information menu
Paper-handling menu
Configure device menu
Printing submenu
Print-quality submenu
System setup submenu
I/O submenu
Resets submenu
Diagnostics menu
Service menu
Remote firmware upgrade (RFU)
Upgrading firmware to a single printer
4. Product maintenance
Preventative maintenance
Preventive maintenance kit contents
Cleaning the printer and accessories
General cleaning
Internal cleaning
Fuser cleaning
Print cartridge information
Storage
Handling instructions
Refilled print cartridges
Print-cartridge weights
Print-cartridge life expectancy
Saving toner by using EconoMode
5. Theory of operation
Basic operation
Sequence of operation
Power-on sequence
Timing chart
Engine control system
DC controller PCA
DC controller operations
High-voltage power supply circuit
Low-voltage power supply unit
Formatter system
Formatter hardware
Laser/scanner system
Image formation system
The eight processes of image formation
Print cartridge
Pickup and feed system
Media-size detection
Media-level detection
Multifeed prevention
Overhead-transparency detection
Fuser-wrapping-jam detection
Jam detection
Tray 1
Tray 1 driver PCA
Power supply
Sequence of operation
Pickup and feed
Jam detection
Tray 4
Tray 4 driver PCA
Power supply
Sequence of operation
Pickup and feed
Media-level and media-size detection
Jam detection
6. Removal and replacement
Introduction
Removal and replacement strategy
Repair notices
Electrostatic discharge (ESD)
Required tools
Orientation of the printer (with tray 4)
Covers
Right top cover
Left top cover
Front cover
Right door
Right lower cover
Left door and diverter
Left back cover
Back cover
Right and left rail covers
Top assemblies
Control panel
Laser/scanner assembly
Delivery assembly
Delivery-fan assembly
Delivery-assembly fans and face-down-bin fan (fans 3, 6, and 4)
Delivery motor
Cartridge release lever
Front assemblies
Print cartridge
Transfer-roller assembly
Tray 2 and tray 3 (interchangeable)
Rollers (pickup, feed, or separation)
Fuser-jam-removal knob
Registration-jam-removal knob
Right assemblies
Tray 1
Paper-input unit (PIU)
Registration assembly
Transfer-guide assembly
Left assemblies
Duplexer
Fuser assembly
Back assemblies
Formatter
Low-voltage power supply
High-voltage power supply
DC controller
Toner-sensor contact assembly
Drum motor
Feed-drive assembly
Power-supply fan (fan 1)
Cartridge fan (fan 5)
Controller fan (fan 2)
Jetlink connector
Fuser-connector holder assembly
Fuser delivery-drive assembly
Tray 4
Orientation
Left side cover
Right side cover
Back covers
Tray 4
Rollers (pickup, feed, and separation)
Registration assembly
Drive motor
Drive assembly
Controller board
Paper-size detection switch PCA
Power supply
Pickup assembly
Paper-connecting unit
7. Troubleshooting
Troubleshooting process
Basic troubleshooting process flow
Preliminary operating 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 paper-path test is successful
Media does not print from tray 4
The printer stops printing and hangs on certain jobs
Envelopes are wrinkling
Fusing is poor
The printer feeds from an incorrect tray when different media
is selected for the first page of the job
Power-on
Troubleshooting by using control-panel messages
Event log page
Control-panel messages
Control-panel and event-log message format
Printer-message tables
Alphabetical error messages
Numerical error messages
User- and service-level diagnostics
Paper-path test
Service test
Service-level diagnostics
Engine test
Service menu
Diagnostics flowchart
Other diagnostics for the HP LaserJet 9000, 9000mfp, and 9000Lmfp
Cold reset
Other diagnostics for the HP LaserJet 9040/9050, 9040mfp, and 9050mfp
Cold reset
Tray 4 diagnostics
Diagnostics label
Motor test
Standalone running test
Sensor test
Light-pattern interpretation
Jam troubleshooting
Jams
Customer print job
Clearing jams
Evaluate the information pages
Configuration page
Jetdirect page
Supplies status page
Usage page
File directory page
Image-formation troubleshooting
Check the print cartridge
EconoMode
Skew
Image-defect tables
Repeating defect ruler
Media troubleshooting
Determine the problem source: media or printer
Isolate a paper path
Isolate a media brand
Isolate a media type
Communication troubleshooting
Communications check
Jetdirect configuration
Embedded LAN troubleshooting
(HP LaserJet 9040n/9050n, HP LaserJet 9040dn/9050dn,
HP LaserJet 9050mfp, and HP LaserJet 9040mfp only)
Wiring diagrams
8. Parts and diagrams
Introduction
Ordering parts
Consumables, supplies, accessories, FRUs, and documentation
Common hardware
Illustrations and parts lists
External covers and panels
Left door and diverter
Right cover assembly
Internal
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 assembly location
Tray 4
Tray 4 main body
Tray 4 drive assembly
Tray 4 PCA location
Tray 1
Alphabetical parts list
Numerical parts list
Numbers of pages: 332.
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