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HP Color LaserJet Enterprise CP4020/CP4520 series printer service manual

CC489A Service Manual View Service Manual

Table of Contents

Theory of operation
Basic operation
Sequence of operation
Engine-control system
DC controller
Fans
High-voltage power supply
Low-voltage power supply
Fuser control
Laser/scanner system
Laser/scanner failure
Protective-glass cleaners
Image-formation system
Image-formation process
Print cartridge
Developing-roller engagement and disengagement
Intermediate transfer belt (ITB) unit
Calibration
Pickup, feed, and delivery system
Pickup-and-feed unit
Fusing and delivery unit
Duplexing unit (HP Color LaserJet CP4525dn, HP Color LaserJet CP4025dn, and HP Color LaserJet CP4525 ...
Jam detection
Optional paper feeder
Motor control
Paper-feeder pickup and feed operation
Paper-size detection and cassette-presence detection
Paper-feeder cassette lift operation
Paper feeder jam detection
Removal and replacement
Introduction
Removal and replacement strategy
Electrostatic discharge
Required tools
After performing service
Before performing service
Post-service test
Print-quality test
Parts removal order
Customer self repair (CSR) components
Print cartridges
Toner-collection unit
Formatter PCA
Hard drive
Memory DIMM
Tray
Fuser
Feed and separation rollers (Trays 2-5)
Pickup roller (Tray 1)
Secondary transfer roller
Intermediate transfer belt (ITB)
External panels, covers, and doors
Identification and location
Upper-left cover
Power-supply cover
Left cover
Front-top cover
Rear-top cover
Right-front cover
Control-panel assembly
Front-door assembly
Right-rear cover
Rear cover
Right-door assembly
Internal assemblies
Cassette feed guide
Secondary transfer assembly
Separation pad (Tray 1)
Registration density (RD) sensor assembly
Registration assembly
Residual-toner-feed motor
Residual-toner duct and feed assembly
Cartridge fan and environmental sensor
Toner-collection sensor and scanner-thermistor assembly
Delivery fan
Delivery assembly
Duplex-drive assembly
Power-supply fan
Interconnect board (ICB)
DC controller PCA only
Low-voltage power supply (LVPS)
DC controller PCA and tray
High-voltage power supply lower (HVPS-D)
Developing-disengagement motor
Exhaust fan and fan duct
Pickup motor
Lifter-drive assembly
Lifter base assembly
Tray-pickup drive assembly
Tray-pickup assembly
Laser/scanner assembly (Y/M)
Laser/scanner assembly (C/Bk)
High-voltage power supply upper (HVPS-T)
Yellow, magenta, cyan, and black drum motors
Fuser motor
ITB motor
Main-drive assembly
Fuser-drive assembly
Optional paper feeder assemblies (1 x 500-sheet and 3 x 500-sheet)
Front door (optional paper feeder)
Rear cover (optional paper feeder)
Right-front cover (optional paper feeder)
Right door (optional paper feeder)
Left cover (optional paper feeder)
Right cover (optional paper feeder)
Rear-right cover (optional paper feeder)
Pickup assembly (optional paper feeder)
Lifter assembly (optional paper feeder)
Lifter-drive assembly (optional paper feeder)
Pickup motor assembly (optional paper feeder)
Controller PCA (optional paper feeder)
Solve problems
Solve problems checklist
Menu map
Troubleshooting process
Determine the problem source
Power subsystem
Tools for troubleshooting
Individual component diagnostics
Diagrams
HP Easy Printer Care
Internal print-quality test pages
Print-quality troubleshooting tools
Control panel menus
Interpret control-panel messages
Event log messages
Clear paper jams
Common causes of jams
Jam locations
Clear jams in the right door
Clear jams in the output bin area
Clear jams in Tray 1
Clear jams in Tray 2 or optional Trays 3, 4, or 5
Clear jams in the lower right door (Tray 3, 4, or 5)
Jam causes and solutions
Change jam recovery
Solve paper-handling problems
Product feeds incorrect page size
Product feeds multiple sheets
Product pulls from incorrect tray
Paper does not feed automatically
Paper does not feed from Tray 2, 3, 4, or 5
Envelopes jam or will not feed in the product
Transparencies or glossy paper will not feed
Output is curled or wrinkled
Product will not duplex or duplexes incorrectly
Use manual print modes
Solve image-quality problems
Image defects table
Clean the product
Clean the paper path
Solve performance problems
Solve connectivity problems
Solve direct-connect problems
Solve network problems
Service mode functions
Service menu
Product resets
Product updates
Parts and diagrams
Order parts, accessories, and supplies
Part numbers
Accessories
Cables and interfaces
Memory
Print cartridges and toner collection unit
Customer self repair (CSR) parts
Service maintenance kits
Unique components
Screws
How to use the parts lists and diagrams
External covers, panels, and doors
Right door assembly
Front door assembly
Internal components
Internal components (1 of 7)
Internal components (2 of 7)
Internal components (3 of 7)
Internal components (4 of 7)
Internal components (5 of 7)
Internal components (6 of 7)
Internal components (7 of 7)
Cassettes 2-5
Paper pickup assembly
Tray 1 paper pickup assembly
Registration assembly
Secondary transfer assembly
Delivery assembly
Fuser assembly
PCAs
Assessories
Paper feeders
Paper feeder external covers, panels, and doors
1 X 500 paper feeder main body
3 X 500 paper feeder main body
Alphabetical parts list
Numerical parts list
Service and support
Hewlett-Packard limited warranty statement
HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement
HP Color LaserJet Fuser Kit Limited Warranty Statement
End User License Agreement
Customer self-repair warranty service
Customer support
Product specifications
Electrical specifications
Performance specifications
Physical specifications
Acoustic specifications
Environmental specifications
Skew specifications
Regulatory information
FCC regulations
Environmental product stewardship program
HP LaserJet print supplies
Ozone production
Paper use
Plastics
Power consumption
Protecting the environment
Toner consumption
Paper
Return and recycling instructions
Chemical substances
Disposal of waste equipment by users in private households in the European Union
Material restrictions
For more information
Material Safety Data Sheet (MSDS)
Declaration of Conformity
Safety statements
Canadian DOC regulations
Laser safety
Power cord instructions
Power cord statement (Japan)
VCCI statement (Japan)
EMC statement (China)
EMC statement (Korea)
EMI statement (Taiwan)
Laser statement for Finland
GS statement (Germany)
Restriction on Hazardous Substances statement (Turkey)
Substances Table (China)
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