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Make/Model Information:

  • Brand:   Hewlett-packard
  • Models included:
    • HP Color Laserjet CP-2020

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English
  • Number of pages:   314
  • File size:  ∼ 21.58  MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   BMHP-1025

NOTE:  This list was created by program script and may not accurately represent the text from the source pages.   For full preview please click on 'Download sample':

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Service Manual
Table of contents
1 Product basics
Quick access to product information
Product comparison
Product features
Walkaround
Front and side view
Back view
Model and serial numbers
Supported operating systems
Supported product software
Software included with the product
Recommended Installation for Windows
Express Installation
Macintosh software
Printer driver
Other software provided
Software for Windows
HP ToolboxFX
Software for Macintosh
PostScript Printer Description (PPD) files
Configure the product using a Macintosh
Status Alerts software
Software for networks
HP Web Jetadmin
Embedded Web server
System requirements
Windows requirements
Macintosh requirements
Connectivity
Supported network operating systems
Printer sharing disclaimer
Supported network protocols
ENWW iii
2 Control panel
Control-panel walkaround
Control-panel menus
Use the menus
Reports menu
System setup menu
Service menu
Network config. menu
3 Paper and print media
Understand paper and print media use
Supported paper and print media sizes
Supported paper types and tray capacity
Special paper or print media guidelines
Load paper and print media
4 Manage and maintain
Information pages
HP ToolboxFX
Open HP ToolboxFX
Status
Event log
Alerts
Set up Status Alerts
Set up E-mail Alerts
Product information
Set password
Device Settings
Device Information
Paper Handling
Printing
PostScript
Print Quality
Print Density
Paper Types
System Setup
Save/Restore Settings
Password
Service
Network Settings
Shop for Supplies
iv ENWW
Other Links
Embedded Web server
View the HP embedded Web server
Embedded Web server sections
HP Web Jetadmin
Manage supplies
Supplies life
Print-cartridge storage
HP policy on non-HP print cartridges
HP fraud hotline and Web site
Print when cartridge is out
Replace print cartridges
Memory and font DIMMs
Product memory
Install memory and font DIMMs
Enable memory
Enable memory for Windows
Check DIMM installation
Clean the product
Firmware updates
5 Theory of operation
Basic operation
Major product systems
Product components
Sequence of operation
Engine control system
DC controller
Low-voltage power supply
High-voltage power supply
Laser/scanner system
Laser failure detection
Image-formation system
Image-formation process
Latent-image formation stage
Step 1: primary charging
Step 2: laser-beam exposure
Developing stage
Step 3: development
Transfer stage
Step 4: primary transfer
Step 5: secondary transfer
Step 6: separation from the drum
Fusing stage
Step 7: fusing
ITB cleaning stage
Step 8: ITB cleaning
Drum cleaning stage
Step 9: drum cleaning
Pickup-and-feed system
Jam detection
6 Removal and replacement
Removal and replacement strategy
General cautions during removal and replacement
Electrostatic discharge
Required tools
Types of screws
Before performing service
After performing service
Post-service test
Print-quality test
Print cartridges
Tray 2 cassette
Rollers and pads
Transfer roller
Paper-pickup roller
Separation roller
Reinstall the separation roller
Paper-pickup roller (Tray 1)
Separation pad (Tray 1)
Components and major assemblies
Link guide
DIMM cover
Print-cartridge drawer
Intermediate transfer belt (ITB)
Reinstall the ITB
Paper-feed guide assembly
Rear-door stopper and link caps (simplex product)
Rear door (simplex product)
Rear door (duplex product)
Right cover
Reinstall the right cover
Rear-upper cover (duplex product)
Rear cover and feed guide (simplex product)
Rear-lower cover and rear-door links (duplex product)
vi ENWW
Rear-door rib assembly (duplex product)
Upper-cover assembly
Reinstall the upper cover
Control-panel assembly
Left cover
Reinstall the left cover
High-voltage power-supply PCA
Color-misregistration sensor assembly PCA
Reinstall the color-misregistration sensor assembly
Right panel
Motors (M1 and M2)
DC controller PCA
Special considerations
Remove the DC controller PCA
Formatter PCA
Special considerations
Remove the formatter PCA
Intermediate PCA
Right-front cover and power button
Power-supply sub PCA
Fuser motor assembly
Reinstall the fuser motor assembly
Duplex reverse-drive assembly
Reinstall the fuser
Paper-delivery assembly
Front-door assembly
Reinstall the front-door assembly
7 Problem solve
Introduction
Solve problems checklist
Menu map
Troubleshooting process
Pretroubleshooting checklist
Power-on checks
Tools for troubleshooting
Print-quality troubleshooting tools
Calibrate the product
Problem-solve diagrams
Repetitive image defects
Interface ports
ENWW vii
DC controller PCA
Major components
Solenoids, clutches, and sensors
Rollers
Motors and fans
Timing diagram
Circuit diagram
Control-panel messages
Pages and reports
Diagnostic page
Configuration page
Supplies status page
Event log
Paper-handling problems
Clear jams
Common causes of jams
Jam locations
Change Jam Recovery setting
Clear jams in Tray 1
Clear jams in Tray 2
Clear jams in Tray 3
Clear jams in fuser area
Clear jams in output bin
Clear jams in duplexer (duplexing models only)
Image defects
General print quality issues
Solve issues with color documents
Solve connectivity problems
Solve direct-connection problems
Solve network problems
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
Engine resets
Engine test page
Cold reset
NVRAM initialization
Performance problems
Print speeds
viii ENWW
8 Parts and diagrams
Order parts, accessories, and supplies
Order directly from HP
Part numbers
Supplies
Memory
Cable and interface accessories
Paper-handling accessories
User-replaceable parts
Whole unit replacement
Screws
How to use the parts lists and diagrams
External components
Covers, panels, and doors
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, simplex products (6 of 7)
Internal components, duplex products (7 of 7)
Major assemblies
Cassette (Tray 2)
Fuser assembly
Optional 250-sheet paper cassette
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
Customer support
Repack the product
Service information form
Appendix B Specifications
Physical specifications
Electrical specifications
Acoustic emissions
Environmental specifications
ENWW ix
Appendix C Regulatory information
FCC regulations
Declaration of conformity
Safety statements
Laser safety
Canadian DOC regulations
VCCI statement (Japan)
Power cord statement (Japan)
EMI statement (Korea)
Laser statement for Finland
Substances Table (China)
Certificate of Volatility
Types of memory
Volatile memory
Non-volatile memory
List of tables
Table 1-1 Product guides
Table 1-2 Printing
Table 1-3 Network product discovery
Table 1-4 Messaging and management
Table 1-5 IP addressing
Table 3-1 Supported paper and print media sizes
Table 3-2 Supported envelopes and postcards
Table 3-3 Tray 1
Table 3-4 Tray 2 and Tray 3
Table 5-1 Sequence of operation
Table 7-1 Repetitive image defects
Table 7-2 DC controller connectors
Table 7-3 Major components
Table 7-4 Solenoid, clutches, and sensors
Table 7-5 Rollers
Table 7-6 PCAs
Table 7-7 Event-log messages
Table 7-8 2ndary Service menu
Table 8-1 Common fasteners
Table 8-2 Covers, panels, and doors
Table 8-3 Internal components (1 of 7)
Table 8-4 Internal components (2 of 7)
Table 8-5 Internal components (3 of 7)
Table 8-6 Internal components (4 of 7)
Table 8-7 Internal components (5 of 7)
Table 8-8 Internal components, simplex products (6 of 7)
Table 8-9 Internal components, duplex products (7 of 7)
Table 8-10 Cassette (Tray 2)
Table 8-11 Fuser assembly
Table 8-12 PCAs
Table 8-13 250-sheet paper cassette
Table 8-14 Alphabetical parts list
Table 8-15 Numerical parts list
Table B-1 Physical specifications
ENWW xi
Table B-2 Electrical specifications
Table B-3 Power consumption (average, in watts),
Table B-4 HP Color LaserJet CP2020 Series,
Table B-5 Operating-environment specifications
xii ENWW
List of figures
Figure 5-1 Product systems
Figure 5-2 Product components
Figure 5-3 Engine control system components
Figure 5-4 DC controller circuit diagram
Figure 5-5 Low-voltage power supply
Figure 5-6 High-voltage power supply
Figure 5-7 Laser/scanner system
Figure 5-8 Image-formation system
Figure 5-9 Image-formation process
Figure 5-10 Primary charging
Figure 5-11 Laser-beam exposure
Figure 5-12 Development
Figure 5-13 Primary transfer
Figure 5-14 Secondary transfer
Figure 5-15 Separation from the drum
Figure 5-16 Fusing
Figure 5-17 ITB cleaning
Figure 5-18 Drum cleaning
Figure 5-19 Pickup-and-feed system
Figure 6-1 Phillips and pozidrive screwdriver comparison
Figure 6-2 Remove the print cartridge
Figure 6-3 Remove the Tray 2 cassette
Figure 6-4 Remove the pickup roller (1 of 2)
Figure 6-5 Remove the pickup roller (2 of 2)
Figure 6-6 Remove the separation roller (1 of 3)
Figure 6-7 Remove the separation roller (2 of 3)
Figure 6-8 Remove the separation roller (3 of 3)
Figure 6-9 Reinstall the separation roller
Figure 6-10 Remove the Tray 1 paper-pickup roller (1 of 3)
Figure 6-11 Remove the Tray 1 paper-pickup roller (2 of 3)
Figure 6-12 Remove the Tray 1 paper-pickup roller (3 of 3)
Figure 6-13 Remove the Tray 1 separation pad (1 of 2)
Figure 6-14 Remove the Tray 1 separation pad (2 of 2)
Figure 6-15 Replace the link guide (simplex products)
ENWW xiii
Figure 6-16 Replace the link guide (duplex products)
Figure 6-17 Remove the DIMM cover
Figure 6-18 Remove the print-cartridge drawer (1 of 3)
Figure 6-19 Remove the print-cartridge drawer (2 of 3)
Figure 6-20 Remove the print-cartridge drawer (3 of 3)
Figure 6-21 Remove the ITB (1 of 6)
Figure 6-22 Remove the ITB (2 of 6)
Figure 6-23 Remove the ITB (3 of 6)
Figure 6-24 Remove the ITB (4 of 6)
Figure 6-25 Remove the ITB (5 of 6)
Figure 6-26 Remove the ITB (6 of 6)
Figure 6-27 Reinstall the ITB
Figure 6-28 Remove the feed assembly (1 of 2)
Figure 6-29 Remove the feed assembly (2 of 2)
Figure 6-30 Remove the rear-door stopper and link caps (simplex product) (1 of 2)
Figure 6-31 Remove the rear-door stopper and link cap (simplex product) (2 of 2)
Figure 6-32 Remove the rear door (simplex product) (1 of 4)
Figure 6-33 Remove the rear door (simplex product) (2 of 4)
Figure 6-34 Remove the rear door (simplex product) (3 of 4)
Figure 6-35 Remove the rear door (simplex product) (4 of 4)
Figure 6-36 Remove the rear door (duplex product) (1 of 4)
Figure 6-37 Remove the rear door (duplex product) (2 of 4)
Figure 6-38 Remove the rear door (duplex product) (3 of 4)
Figure 6-39 Remove the rear door (duplex product) (4 of 4)
Figure 6-40 Remove the right cover (1 of 5)
Figure 6-41 Remove the right cover (2 of 5)
Figure 6-42 Remove the right cover (3 of 5)
Figure 6-43 Remove the right cover (4 of 5)
Figure 6-44 Remove the right cover (5 of 5)
Figure 6-45 Reinstall the right cover
Figure 6-46 Remove the rear-upper cover (1 of 2)
Figure 6-47 Remove the rear-upper cover (2 of 2)
Figure 6-48 Remove the rear cover and feed guide (simplex product) (1 of 6)
Figure 6-49 Remove the rear cover and feed guide (simplex product) (2 of 6)
Figure 6-50 Remove the rear cover and feed guide (simplex product) (3 of 6)
Figure 6-51 Remove the rear cover and feed guide (simplex product) (4 of 6)
Figure 6-52 Remove the rear cover and feed guide (simplex product) (5 of 6)
Figure 6-53 Remove the rear cover and feed guide (simplex product) (6 of 6)
Figure 6-54 Remove the rear-lower cover and rear-door links (duplex product) (1 of 6)
Figure 6-55 Remove the rear-lower cover and rear-door links (duplex product) (2 of 6)
Figure 6-56 Remove the rear-lower cover and rear-door links (duplex product) (3 of 6)
Figure 6-57 Remove the rear-lower cover and link-guides ( duplex product) (4 of 6)
Figure 6-58 Remove the rear-lower cover and link-guides ( duplex product) (5 of 6)
Figure 6-59 Remove the rear-lower cover and rear-door links (duplex product) (6 of 6)
xiv ENWW
Figure 6-60 Remove the rear-door rib assembly (duplex product) (1 of 3)
Figure 6-61 Remove the rear-door rib assembly (duplex product) (2 of 3)
Figure 6-62 Remove the rear-door rib assembly (duplex product) (3 of 3)
Figure 6-63 Remove the upper-cover assembly (1 of 4)
Figure 6-64 Remove the upper-cover assembly (2 of 4)
Figure 6-65 Remove the upper-cover assembly (3 of 4)
Figure 6-66 Remove the upper-cover assembly (4 of 4)
Figure 6-67 Upper-cover tabs not correctly seated
Figure 6-68 Upper-cover tabs correctly seated
Figure 6-69 Remove the control-panel assembly (1 of 3)
Figure 6-70 Remove the control-panel assembly (2 of 3)
Figure 6-71 Remove the control-panel assembly (3 of 3)
Figure 6-72 Remove the left cover (1 of 3)
Figure 6-73 Remove the left cover (2 of 3)
Figure 6-74 Remove the left cover (3 of 3)
Figure 6-75 Reinstall the left cover (1 of 2)
Figure 6-76 Reinstall the left cover (2 of 2)
Figure 6-77 Remove the high-voltage power-supply PCA (1 of 5)
Figure 6-78 Remove the high-voltage power-supply PCA (2 of 5)
Figure 6-79 Remove the high-voltage power-supply PCA (3 of 5)
Figure 6-80 Remove the high-voltage power-supply PCA (4 of 5)
Figure 6-81 Remove the high-voltage power-supply PCA (5 of 5)
Figure 6-82 Remove the color-misregistration sensor assembly PCA (1 of 5)
Figure 6-83 Remove the color-misregistration sensor assembly PCA (2 of 5)
Figure 6-84 Remove the color-misregistration sensor assembly PCA (3 of 5)
Figure 6-85 Remove the color-misregistration sensor assembly PCA (4 of 5)
Figure 6-86 Remove the color-misregistration sensor assembly PCA (5 of 5)
Figure 6-87 Reinstall the color-misregistration sensor assembly PCA (1 of 2)
Figure 6-88 Reinstall the color-misregistration sensor assembly PCA (2 of 2)
Figure 6-89 Remove the right panel (1 of 8)
Figure 6-90 Remove the right panel (2 of 8)
Figure 6-91 Remove the right panel (3 of 8)
Figure 6-92 Remove the right panel (4 of 8)
Figure 6-93 Remove the right panel (5 of 8)
Figure 6-94 Remove the right panel (6 of 8)
Figure 6-95 Remove the right panel (7 of 8)
Figure 6-96 Remove the right panel (8 of 8)
Figure 6-97 Remove motor M1 or motor M2 (1 of 3)
Figure 6-98 Remove motor M1 or motor M2 (2 of 3)
Figure 6-99 Remove motor M1 or motor M2 (3 of 3)
Figure 6-100 Remove the DC controller PCA (1 of 2)
Figure 6-101 Remove the DC controller PCA (2 of 2)
Figure 6-102 Remove the formatter PCA (1 of 2)
Figure 6-103 Remove the formatter PCA (2 of 2)
ENWW xv
Figure 6-104 Remove the fan (1 of 2)
Figure 6-105 Remove the fan (2 of 2)
Figure 6-106 Remove the Intermediate PCA (1 of 2)
Figure 6-107 Remove the Intermediate PCA (2 of 2)
Figure 6-108 Remove the right-front cover and power button (1 of 2)
Figure 6-109 Remove the right-front cover and power button (2 of 2)
Figure 6-110 Remove the power-supply sub PCA (1 of 6)
Figure 6-111 Remove the power-supply sub PCA (2 of 6)
Figure 6-112 Remove the power-supply sub PCA (3 of 6)
Figure 6-113 Remove the power-supply sub PCA (4 of 6)
Figure 6-114 Remove the power-supply sub PCA (5 of 6)
Figure 6-115 Remove the power-supply sub PCA (6 of 6)
Figure 6-116 Remove the fuser motor assembly (1 of 8)
Figure 6-117 Remove the fuser motor assembly (2 of 8)
Figure 6-118 Remove the fuser motor assembly (3 of 8)
Figure 6-119 Remove the fuser motor assembly (4 of 8)
Figure 6-120 Remove the fuser motor assembly (5 of 8)
Figure 6-121 Remove the fuser motor assembly (6 of 8)
Figure 6-122 Remove the fuser motor assembly (7 of 8)
Figure 6-123 Remove the fuser motor assembly (8 of 8)
Figure 6-124 Reinstall the fuser motor assembly
Figure 6-125 Remove the duplex reverse-drive assembly (1 of 4)
Figure 6-126 Remove the duplex reverse-drive assembly (2 of 4)
Figure 6-127 Remove the duplex reverse-drive assembly (3 of 4)
Figure 6-128 Remove the duplex reverse-drive assembly (4 of 4)
Figure 6-129 Remove the fuser (1 of 8)
Figure 6-130 Remove the fuser (2 of 8)
Figure 6-131 Remove the fuser (3 of 8)
Figure 6-132 Remove the fuser (4 of 8)
Figure 6-133 Remove the fuser (5 of 8)
Figure 6-134 Remove the fuser (6 of 8)
Figure 6-135 Remove the fuser (7 of 8)
Figure 6-136 Remove the fuser (8 of 8)
Figure 6-137 Reinstall the fuser
Figure 6-138 Remove the paper-delivery assembly (1 of 4)
Figure 6-139 Remove the paper-delivery assembly (2 of 4)
Figure 6-140 Remove the paper-delivery assembly (3 of 4)
Figure 6-141 Remove the paper-delivery assembly (4 of 4)
Figure 6-142 Remove the front-door assembly (1 of 10)
Figure 6-143 Remove the front-door assembly (2 of 10)
Figure 6-144 Remove the front-door assembly (3 of 10)
Figure 6-145 Remove the front-door assembly (4 of 10)
Figure 6-146 Remove the front-door assembly (5 of 10)
Figure 6-147 Remove the front-door assembly (6 of 10)
xvi ENWW
Figure 6-148 Remove the front-door assembly (7 of 10)
Figure 6-149 Remove the front-door assembly (8 of 10)
Figure 6-150 Remove the front-door assembly (9 of 10)
Figure 6-151 Remove the front-door assembly (10 of 10)
Figure 6-152 Reinstall the front-door assembly (1 of 2)
Figure 6-153 Reinstall the front-door assembly (2 of 2)
Figure 7-1 DC controller connectors
Figure 7-2 Major components
Figure 7-3 Solenoid, clutches, and sensors
Figure 7-4 Rollers
Figure 7-5 Motors and fans
Figure 7-6 PCAs
Figure 7-7 Timing diagram
Figure 7-8 Circuit diagram
Figure 7-9 Engine test button location
Figure 8-1 Covers, panels, and doors
Figure 8-2 Internal components (1 of 7)
Figure 8-3 Internal components (2 of 7)
Figure 8-4 Internal components (3 of 7)
Figure 8-5 Internal components (4 of 7)
Figure 8-6 Internal components (5 of 7)
Figure 8-7 Internal components, simplex products (6 of 7)
Figure 8-8 Internal components, duplex products (7 of 7)
Figure 8-9 Cassette (Tray 2)
Figure 8-10 Fuser assembly
Figure 8-11 PCAs
Figure 8-12 Optional 250-sheet paper cassette
ENWW xvii


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