HP Color Laserjet CP2025 service manual

4.5 (117)

Service Manual

HP Color LaserJet CP2020 Series

Service Manual

Development Company, L.P.

Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

The information contained herein is subject to change without notice.

The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Part number CB493-90948

Edition 1, 09/2008

Safety information

WARNING!

Potential Shock Hazard

Always follow basic safety precautions when using the product to reduce risk of injury from fire or electric shock.

Read and understand all instructions in the user guide.

Observe all warnings and instructions marked on the product.

Use only a grounded electrical outlet when connecting the product to a power source. If you do not know whether the outlet is grounded, check with a qualified electrician.

Do not touch the contacts on the end of any of the sockets on the product. Replace damaged cords immediately.

Unplug the product from wall outlets before cleaning.

Do not install or use the product near water or when you are wet.

Install the product securely on a stable surface.

Install the product in a protected place where no one can step on or trip over the power cord and where the power cord will not be damaged.

If the product does not operate normally, see the online user guide.

Refer all servicing questions to qualified personnel.

Information regarding FCC Class B, Parts 15 and 68 requirements can be found in the user guide.

Trademark credits

Microsoft® and Windows® are U.S. registered trademarks of Microsoft Corporation.

Windows Vista® is either a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries or regions.

Linux is a U.S. registered trademark of Linus Torvalds.

UNIX® is a registered trademark of The Open Group.

PostScript® is a trademark of Adobe Systems Incorporated.

ENERGY STAR and the ENERGY STAR mark are registered U.S. marks.

Table of contents

1 Product basics
Quick access to product information ....................................................................................................	2
Product comparison .............................................................................................................................	3
Product features ...................................................................................................................................	3
Walkaround ..........................................................................................................................................	4
Front and side view ..............................................................................................................	4
Back view .............................................................................................................................	5
Model and serial numbers ...................................................................................................	5
Supported operating systems ...............................................................................................................	6
Supported product software .................................................................................................................	7
Software included with the product ......................................................................................	7
Recommended Installation for Windows .............................................................	7
Express Installation .............................................................................................	7
Macintosh software .............................................................................................	7
Printer driver ........................................................................................................................	7
Other software provided ......................................................................................................	8
Software for Windows .........................................................................................	8
HP ToolboxFX ....................................................................................	8
Software for Macintosh .......................................................................................	8
PostScript Printer Description (PPD) files ..........................................	8
Configure the product using a Macintosh ...........................................	8
Status Alerts software .........................................................................................	8
Software for networks .........................................................................................	8
HP Web Jetadmin ...............................................................................	8
Embedded Web server .......................................................................	9
Linux ...................................................................................................	9
System requirements ...........................................................................................................	9
Windows requirements ........................................................................................	9
Macintosh requirements ......................................................................................	9
Connectivity ........................................................................................................................................	10
Supported network operating systems ..............................................................................	10
Printer sharing disclaimer ..................................................................................	10
Supported network protocols .............................................................................................	10

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2 Control panel
Control-panel walkaround ..................................................................................................................	14
Control-panel menus ..........................................................................................................................	15
Use the menus ...................................................................................................................	15
Reports menu ....................................................................................................................	16
System setup menu ...........................................................................................................	17
Service menu .....................................................................................................................	19
Network config. menu ........................................................................................................	20
3 Paper and print media
Understand paper and print media use ..............................................................................................	22
Supported paper and print media sizes ..............................................................................................	23
Supported paper types and tray capacity ...........................................................................................	25
Special paper or print media guidelines .............................................................................................	27
Load paper and print media ...............................................................................................................	28
4 Manage and maintain
Information pages ...............................................................................................................................	32
HP ToolboxFX ....................................................................................................................................	33
Open HP ToolboxFX ..........................................................................................................	33
Status .................................................................................................................................	33
Event log ...........................................................................................................	33
Alerts ..................................................................................................................................	34
Set up Status Alerts ..........................................................................................	34
Set up E-mail Alerts ..........................................................................................	34
Product information ............................................................................................................	34
Set password .....................................................................................................................	34
Help ...................................................................................................................................	35
Device Settings ..................................................................................................................	36
Device Information ............................................................................................	36
Paper Handling .................................................................................................	37
Printing ..............................................................................................................	37
PCL5c ...............................................................................................................	37
PostScript ..........................................................................................................	37
Print Quality .......................................................................................................	38
Print Density ......................................................................................................	38
Paper Types ......................................................................................................	38
System Setup ....................................................................................................	38
Save/Restore Settings ......................................................................................	38
Password ..........................................................................................................	38
Service ..............................................................................................................	39
Network Settings ................................................................................................................	39
Shop for Supplies ..............................................................................................................	39

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Other Links ........................................................................................................................	39
Embedded Web server .......................................................................................................................	40
View the HP embedded Web server ..................................................................................	40
Embedded Web server sections ........................................................................................	41
HP Web Jetadmin ..............................................................................................................................	43
Manage supplies ................................................................................................................................	44
Supplies life .......................................................................................................................	44
Print-cartridge storage .......................................................................................................	44
HP policy on non-HP print cartridges .................................................................................	44
HP fraud hotline and Web site ...........................................................................................	44
Print when cartridge is out .................................................................................................	45
Replace print cartridges .....................................................................................................................	46
Memory and font DIMMs ....................................................................................................................	50
Product memory ................................................................................................................	50
Install memory and font DIMMs .........................................................................................	50
Enable memory ..................................................................................................................	54
Enable memory for Windows ............................................................................	54
Check DIMM installation ....................................................................................................	54
Clean the product ...............................................................................................................................	54
Firmware updates ...............................................................................................................................	55
5 Theory of operation
Basic operation ...................................................................................................................................	58
Major product systems .......................................................................................................	58
Product components ..........................................................................................................	59
Sequence of operation .......................................................................................................	60
Engine control system ........................................................................................................................	61
DC controller ......................................................................................................................	62
Low-voltage power supply .................................................................................................	62
High-voltage power supply ................................................................................................	63
Laser/scanner system ........................................................................................................................	65
Laser failure detection .......................................................................................................	65
Image-formation system .....................................................................................................................	66
Image-formation process ...................................................................................................	66
Latent-image formation stage ............................................................................................	67
Step 1: primary charging ...................................................................................	67
Step 2: laser-beam exposure ............................................................................	68
Developing stage ...............................................................................................................	68
Step 3: development .........................................................................................	68
Transfer stage ....................................................................................................................	69
Step 4: primary transfer .....................................................................................	69
Step 5: secondary transfer ................................................................................	69
Step 6: separation from the drum ......................................................................	70

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Fusing stage ......................................................................................................................	70
Step 7: fusing ....................................................................................................	70
ITB cleaning stage .............................................................................................................	71
Step 8: ITB cleaning ..........................................................................................	71
Drum cleaning stage ..........................................................................................................	72
Step 9: drum cleaning .......................................................................................	72
Pickup-and-feed system .....................................................................................................................	73
Jam detection ....................................................................................................................	75
6 Removal and replacement
Removal and replacement strategy ...................................................................................................	78
General cautions during removal and replacement ...........................................................	78
Electrostatic discharge .......................................................................................................	78
Required tools ...................................................................................................................	79
Types of screws .................................................................................................................	79
Before performing service ..................................................................................................	80
After performing service .....................................................................................................	80
Post-service test ................................................................................................................	81
Print-quality test ................................................................................................	81
Print cartridges ...................................................................................................................................	82
Tray 2 cassette ...................................................................................................................................	83
Rollers and pads ................................................................................................................................	84
Transfer roller ....................................................................................................................	84
Paper-pickup roller .............................................................................................................	85
Separation roller ................................................................................................................	87
Reinstall the separation roller ............................................................................	89
Paper-pickup roller (Tray 1) ...............................................................................................	90
Separation pad (Tray 1) .....................................................................................................	92
Components and major assemblies ...................................................................................................	93
Link guide ..........................................................................................................................	93
DIMM cover .......................................................................................................................	94
Print-cartridge drawer ........................................................................................................	95
Intermediate transfer belt (ITB) ..........................................................................................	97
Reinstall the ITB ..............................................................................................	100
Paper-feed guide assembly .............................................................................................	101
Rear-door stopper and link caps (simplex product) .........................................................	103
Rear door (simplex product) ............................................................................................	104
Rear door (duplex product) ..............................................................................................	106
Right cover .......................................................................................................................	108
Reinstall the right cover ...................................................................................	110
Rear-upper cover (duplex product) ..................................................................................	111
Rear cover and feed guide (simplex product) ..................................................................	112
Rear-lower cover and rear-door links (duplex product) ...................................................	116

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Rear-door rib assembly (duplex product) ........................................................................	119
Upper-cover assembly .....................................................................................................	121
Reinstall the upper cover ................................................................................	123
Control-panel assembly ...................................................................................................	124
Left cover .........................................................................................................................	126
Reinstall the left cover .....................................................................................	127
High-voltage power-supply PCA ......................................................................................	129
Color-misregistration sensor assembly PCA ...................................................................	132
Reinstall the color-misregistration sensor assembly .......................................	135
Right panel .......................................................................................................................	136
Motors (M1 and M2) ........................................................................................................	140
DC controller PCA ...........................................................................................................	142
Special considerations ....................................................................................	142
Remove the DC controller PCA ......................................................................	142
Formatter PCA .................................................................................................................	144
Special considerations ....................................................................................	144
Remove the formatter PCA .............................................................................	144
Fan ...................................................................................................................................	146
Intermediate PCA ............................................................................................................	147
Right-front cover and power button .................................................................................	148
Power-supply sub PCA ....................................................................................................	150
Fuser motor assembly .....................................................................................................	154
Reinstall the fuser motor assembly .................................................................	158
Duplex reverse-drive assembly .......................................................................................	159
Fuser ................................................................................................................................	162
Reinstall the fuser ...........................................................................................	167
Paper-delivery assembly .................................................................................................	168
Front-door assembly ........................................................................................................	171
Reinstall the front-door assembly ....................................................................	176
7 Problem solve
Introduction .......................................................................................................................................	180
Solve problems checklist ..................................................................................................................	181
Menu map ........................................................................................................................................	181
Troubleshooting process ..................................................................................................................	182
Pretroubleshooting checklist ...........................................................................................	182
Power-on checks .............................................................................................................	184
Tools for troubleshooting ..................................................................................................................	185
Print-quality troubleshooting tools ....................................................................................	185
Calibrate the product .......................................................................................	185
Problem-solve diagrams ...................................................................................................................	186
Repetitive image defects .................................................................................................	186
Interface ports ..................................................................................................................	187

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DC controller PCA ...........................................................................................................	188
Major components ...........................................................................................................	190
Solenoids, clutches, and sensors ....................................................................................	191
Rollers ..............................................................................................................................	192
Motors and fans ...............................................................................................................	193
PCAs ................................................................................................................................	194
Timing diagram ................................................................................................................	195
Circuit diagram .................................................................................................................	195
Control-panel messages ..................................................................................................................	197
Pages and reports ............................................................................................................................	201
Diagnostic page ...............................................................................................................	201
Configuration page ..........................................................................................................	201
Supplies status page .......................................................................................................	201
Event log ..........................................................................................................................	202
Paper-handling problems .................................................................................................................	204
Clear jams ........................................................................................................................	204
Common causes of jams .................................................................................	204
Jam locations ..................................................................................................	205
Change Jam Recovery setting ........................................................................	205
Clear jams in Tray 1 ........................................................................................	206
Clear jams in Tray 2 .......................................................................................	208
Clear jams in Tray 3 .......................................................................................	209
Clear jams in fuser area ..................................................................................	210
Clear jams in output bin ..................................................................................	211
Clear jams in duplexer (duplexing models only) .............................................	212
Image defects ...................................................................................................................................	214
General print quality issues .............................................................................................	214
Solve issues with color documents ..................................................................................	218
Solve connectivity problems .............................................................................................................	220
Solve direct-connection problems ....................................................................................	220
Solve network problems ..................................................................................................	220
Service mode functions ....................................................................................................................	222
Service menu ...................................................................................................................	222
Service menu settings .....................................................................................	222
Restore the factory-set defaults ......................................................................	222
Secondary service menu .................................................................................................	222
Open the secondary service menu .................................................................	222
Secondary service menu structure ..................................................................	222
Engine resets ...................................................................................................................	224
Engine test page .............................................................................................	224
Cold reset ........................................................................................................	224
NVRAM initialization ........................................................................................	225
Performance problems .....................................................................................................................	226
Print speeds .....................................................................................................................	227

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8 Parts and diagrams
Order parts, accessories, and supplies ............................................................................................	230
Order directly from HP .....................................................................................................	230
Part numbers ....................................................................................................................................	230
Supplies ...........................................................................................................................	230
Memory ............................................................................................................................	230
Cable and interface accessories ......................................................................................	231
Paper-handling accessories ............................................................................................	231
User-replaceable parts ....................................................................................................	231
Whole unit replacement ...................................................................................................	231
Screws ..............................................................................................................................................	232
How to use the parts lists and diagrams ..........................................................................................	233
External components ........................................................................................................................	234
Covers, panels, and doors ...............................................................................................	234
Internal components .........................................................................................................................	236
Internal components (1 of 7) ............................................................................................	236
Internal components (2 of 7) ............................................................................................	238
Internal components (3 of 7) ............................................................................................	240
Internal components (4 of 7) ............................................................................................	242
Internal components (5 of 7) ............................................................................................	244
Internal components, simplex products (6 of 7) ...............................................................	246
Internal components, duplex products (7 of 7) ................................................................	248
Major assemblies .............................................................................................................................	250
Cassette (Tray 2) .............................................................................................................	250
Fuser assembly ...............................................................................................................	252
PCAs ................................................................................................................................	254
Optional 250-sheet paper cassette ..................................................................................................	256
Alphabetical parts list .......................................................................................................................	258
Numerical parts list ...........................................................................................................................	261
Appendix A Service and support
Hewlett-Packard limited warranty statement ....................................................................................	266
Customer self repair warranty service ..............................................................................................	267
Print cartridge limited warranty statement ........................................................................................	268
Customer support .............................................................................................................................	269
Repack the product ..........................................................................................................................	270
Service information form ..................................................................................................................	271
Appendix B Specifications
Physical specifications .....................................................................................................................	274
Electrical specifications ....................................................................................................................	275
Acoustic emissions ...........................................................................................................................	276
Environmental specifications ............................................................................................................	276

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Appendix C Regulatory information
FCC regulations ...............................................................................................................................	278
Declaration of conformity ..................................................................................................................	279
Safety statements .............................................................................................................................	280
Laser safety .....................................................................................................................	280
Canadian DOC regulations ..............................................................................................	280
VCCI statement (Japan) ..................................................................................................	280
Power cord statement (Japan) .........................................................................................	280
EMC statement (Korea) ...................................................................................................	280
Laser statement for Finland .............................................................................................	281
Substances Table (China) ...............................................................................................	282
Certificate of Volatility ......................................................................................................	283
Types of memory ............................................................................................	283
Volatile memory ..............................................................................	283
Non-volatile memory .......................................................................	283
Index .................................................................................................................................................................	285

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List of tables

Table 1-1	Product guides ...................................................................................................................................	2
Table 1-2	Printing .............................................................................................................................................	10
Table 1-3 Network product discovery ...............................................................................................................		10
Table 1-4 Messaging and management ...........................................................................................................		10
Table 1-5	IP addressing ...................................................................................................................................	11
Table 3-1 Supported paper and print media sizes ...........................................................................................		23
Table 3-2 Supported envelopes and postcards ...............................................................................................		23
Table 3-3	Tray 1 ...............................................................................................................................................	25
Table 3-4 Tray 2 and Tray 3 .............................................................................................................................		26
Table 5-1 Sequence of operation .....................................................................................................................		60
Table 7-1 Repetitive image defects ................................................................................................................		186
Table 7-2 DC controller connectors ................................................................................................................		188
Table 7-3	Major components ..........................................................................................................................	190
Table 7-4 Solenoid, clutches, and sensors ....................................................................................................		191
Table 7-5	Rollers ............................................................................................................................................	192
Table 7-6	PCAs .............................................................................................................................................	194
Table 7-7	Event-log messages .......................................................................................................................	202
Table 7-8 2ndary Service menu .....................................................................................................................		222
Table 8-1	Common fasteners ........................................................................................................................	232
Table 8-2 Covers, panels, and doors .............................................................................................................		235
Table 8-3 Internal components (1 of 7) ..........................................................................................................		237
Table 8-4 Internal components (2 of 7) ..........................................................................................................		239
Table 8-5 Internal components (3 of 7) ..........................................................................................................		241
Table 8-6 Internal components (4 of 7) ..........................................................................................................		243
Table 8-7 Internal components (5 of 7) ..........................................................................................................		245
Table 8-8 Internal components, simplex products (6 of 7) .............................................................................		247
Table 8-9 Internal components, duplex products (7 of 7) ...............................................................................		249
Table 8-10 Cassette (Tray 2) .........................................................................................................................		251
Table 8-11	Fuser assembly ............................................................................................................................	253
Table 8-12	PCAs ............................................................................................................................................	255
Table 8-13 250-sheet paper cassette ............................................................................................................		257
Table 8-14 Alphabetical parts list ...................................................................................................................		258
Table 8-15 Numerical parts list .......................................................................................................................		261
Table B-1	Physical specifications ...................................................................................................................	274

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Table B-2	Electrical specifications ..................................................................................................................	275
Table B-3	Power consumption (average, in watts), .......................................................................................	275
Table B-4	HP Color LaserJet CP2020 Series, ...............................................................................................	276
Table B-5	Operating-environment specifications ...........................................................................................	276

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List of figures

Figure 5-1	Product systems .............................................................................................................................	58
Figure 5-2	Product components .......................................................................................................................	59
Figure 5-3 Engine control system components ................................................................................................		61
Figure 5-4 DC controller circuit diagram ...........................................................................................................		62
Figure 5-5 Low-voltage power supply ..............................................................................................................		63
Figure 5-6 High-voltage power supply ..............................................................................................................		64
Figure 5-7	Laser/scanner system .....................................................................................................................	65
Figure 5-8	Image-formation system .................................................................................................................	66
Figure 5-9	Image-formation process ................................................................................................................	67
Figure 5-10	Primary charging ...........................................................................................................................	67
Figure 5-11	Laser-beam exposure ...................................................................................................................	68
Figure 5-12	Development .................................................................................................................................	68
Figure 5-13	Primary transfer ............................................................................................................................	69
Figure 5-14	Secondary transfer ........................................................................................................................	69
Figure 5-15 Separation from the drum .............................................................................................................		70
Figure 5-16	Fusing ...........................................................................................................................................	70
Figure 5-17	ITB cleaning ..................................................................................................................................	71
Figure 5-18	Drum cleaning ...............................................................................................................................	72
Figure 5-19	Pickup-and-feed system ...............................................................................................................	73
Figure 6-1 Phillips and pozidrive screwdriver comparison ...............................................................................		79
Figure 6-2 Remove the print cartridge ..............................................................................................................		82
Figure 6-3 Remove the Tray 2 cassette ...........................................................................................................		83
Figure 6-4 Remove the pickup roller (1 of 2) ....................................................................................................		86
Figure 6-5 Remove the pickup roller (2 of 2) ....................................................................................................		86
Figure 6-6 Remove the separation roller (1 of 3) .............................................................................................		87
Figure 6-7 Remove the separation roller (2 of 3) .............................................................................................		88
Figure 6-8 Remove the separation roller (3 of 3) .............................................................................................		88
Figure 6-9 Reinstall the separation roller .........................................................................................................		89
Figure 6-10 Remove the Tray 1 paper-pickup roller (1 of 3) ............................................................................		90
Figure 6-11 Remove the Tray 1 paper-pickup roller (2 of 3) ............................................................................		91
Figure 6-12 Remove the Tray 1 paper-pickup roller (3 of 3) ............................................................................		91
Figure 6-13 Remove the Tray 1 separation pad (1 of 2) ..................................................................................		92
Figure 6-14 Remove the Tray 1 separation pad (2 of 2) ..................................................................................		92
Figure 6-15 Replace the link guide (simplex products) ....................................................................................		93

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Figure 6-16 Replace the link guide (duplex products) ......................................................................................	93
Figure 6-17 Remove the DIMM cover .............................................................................................................	94
Figure 6-18 Remove the print-cartridge drawer (1 of 3) ...................................................................................	95
Figure 6-19 Remove the print-cartridge drawer (2 of 3) ...................................................................................	95
Figure 6-20 Remove the print-cartridge drawer (3 of 3) ...................................................................................	96
Figure 6-21 Remove the ITB (1 of 6) ................................................................................................................	97
Figure 6-22 Remove the ITB (2 of 6) ................................................................................................................	97
Figure 6-23 Remove the ITB (3 of 6) ................................................................................................................	98
Figure 6-24 Remove the ITB (4 of 6) ................................................................................................................	98
Figure 6-25 Remove the ITB (5 of 6) ................................................................................................................	99
Figure 6-26 Remove the ITB (6 of 6) ................................................................................................................	99
Figure 6-27 Reinstall the ITB ..........................................................................................................................	100
Figure 6-28 Remove the feed assembly (1 of 2) ............................................................................................	101
Figure 6-29 Remove the feed assembly (2 of 2) ............................................................................................	102
Figure 6-30 Remove the rear-door stopper and link caps (simplex product) (1 of 2) .....................................	103
Figure 6-31 Remove the rear-door stopper and link cap (simplex product) (2 of 2) ......................................	103
Figure 6-32 Remove the rear door (simplex product) (1 of 4) ........................................................................	104
Figure 6-33 Remove the rear door (simplex product) (2 of 4) ........................................................................	104
Figure 6-34 Remove the rear door (simplex product) (3 of 4) ........................................................................	105
Figure 6-35 Remove the rear door (simplex product) (4 of 4) ........................................................................	105
Figure 6-36 Remove the rear door (duplex product) (1 of 4) .........................................................................	106
Figure 6-37 Remove the rear door (duplex product) (2 of 4) .........................................................................	106
Figure 6-38 Remove the rear door (duplex product) (3 of 4) .........................................................................	107
Figure 6-39 Remove the rear door (duplex product) (4 of 4) .........................................................................	107
Figure 6-40 Remove the right cover (1 of 5) ..................................................................................................	108
Figure 6-41 Remove the right cover (2 of 5) ..................................................................................................	108
Figure 6-42 Remove the right cover (3 of 5) ..................................................................................................	109
Figure 6-43 Remove the right cover (4 of 5) ..................................................................................................	109
Figure 6-44 Remove the right cover (5 of 5) ..................................................................................................	110
Figure 6-45 Reinstall the right cover ..............................................................................................................	110
Figure 6-46 Remove the rear-upper cover (1 of 2) ........................................................................................	111
Figure 6-47 Remove the rear-upper cover (2 of 2) ........................................................................................	111
Figure 6-48 Remove the rear cover and feed guide (simplex product) (1 of 6) .............................................	112
Figure 6-49 Remove the rear cover and feed guide (simplex product) (2 of 6) .............................................	112
Figure 6-50 Remove the rear cover and feed guide (simplex product) (3 of 6) .............................................	113
Figure 6-51 Remove the rear cover and feed guide (simplex product) (4 of 6) .............................................	114
Figure 6-52 Remove the rear cover and feed guide (simplex product) (5 of 6) .............................................	115
Figure 6-53 Remove the rear cover and feed guide (simplex product) (6 of 6) .............................................	115
Figure 6-54 Remove the rear-lower cover and rear-door links (duplex product) (1 of 6) ...............................	116
Figure 6-55 Remove the rear-lower cover and rear-door links (duplex product) (2 of 6) ...............................	116
Figure 6-56 Remove the rear-lower cover and rear-door links (duplex product) (3 of 6) ...............................	117
Figure 6-57 Remove the rear-lower cover and link-guides (duplex product) (4 of 6) .....................................	117
Figure 6-58 Remove the rear-lower cover and link-guides (duplex product) (5 of 6) .....................................	118
Figure 6-59 Remove the rear-lower cover and rear-door links (duplex product) (6 of 6) ...............................	118

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Figure 6-60 Remove the rear-door rib assembly (duplex product) (1 of 3) ....................................................	119
Figure 6-61 Remove the rear-door rib assembly (duplex product) (2 of 3) ....................................................	120
Figure 6-62 Remove the rear-door rib assembly (duplex product) (3 of 3) ....................................................	120
Figure 6-63 Remove the upper-cover assembly (1 of 4) ................................................................................	121
Figure 6-64 Remove the upper-cover assembly (2 of 4) ................................................................................	121
Figure 6-65 Remove the upper-cover assembly (3 of 4) ................................................................................	122
Figure 6-66 Remove the upper-cover assembly (4 of 4) ................................................................................	122
Figure 6-67 Upper-cover tabs not correctly seated ........................................................................................	123
Figure 6-68 Upper-cover tabs correctly seated ..............................................................................................	123
Figure 6-69 Remove the control-panel assembly (1 of 3) ..............................................................................	124
Figure 6-70 Remove the control-panel assembly (2 of 3) ..............................................................................	125
Figure 6-71 Remove the control-panel assembly (3 of 3) ..............................................................................	125
Figure 6-72 Remove the left cover (1 of 3) .....................................................................................................	126
Figure 6-73 Remove the left cover (2 of 3) .....................................................................................................	126
Figure 6-74 Remove the left cover (3 of 3) .....................................................................................................	127
Figure 6-75 Reinstall the left cover (1 of 2) ....................................................................................................	127
Figure 6-76 Reinstall the left cover (2 of 2) ....................................................................................................	128
Figure 6-77 Remove the high-voltage power-supply PCA (1 of 5) .................................................................	129
Figure 6-78 Remove the high-voltage power-supply PCA (2 of 5) .................................................................	130
Figure 6-79 Remove the high-voltage power-supply PCA (3 of 5) .................................................................	130
Figure 6-80 Remove the high-voltage power-supply PCA (4 of 5) .................................................................	131
Figure 6-81 Remove the high-voltage power-supply PCA (5 of 5) .................................................................	131
Figure 6-82 Remove the color-misregistration sensor assembly PCA (1 of 5) ..............................................	132
Figure 6-83 Remove the color-misregistration sensor assembly PCA (2 of 5) ..............................................	133
Figure 6-84 Remove the color-misregistration sensor assembly PCA (3 of 5) ..............................................	133
Figure 6-85 Remove the color-misregistration sensor assembly PCA (4 of 5) ..............................................	134
Figure 6-86 Remove the color-misregistration sensor assembly PCA (5 of 5) ..............................................	134
Figure 6-87 Reinstall the color-misregistration sensor assembly PCA (1 of 2) ..............................................	135
Figure 6-88 Reinstall the color-misregistration sensor assembly PCA (2 of 2) ..............................................	135
Figure 6-89 Remove the right panel (1 of 8) ..................................................................................................	136
Figure 6-90 Remove the right panel (2 of 8) ..................................................................................................	136
Figure 6-91 Remove the right panel (3 of 8) ..................................................................................................	137
Figure 6-92 Remove the right panel (4 of 8) ..................................................................................................	137
Figure 6-93 Remove the right panel (5 of 8) ..................................................................................................	138
Figure 6-94 Remove the right panel (6 of 8) ..................................................................................................	138
Figure 6-95 Remove the right panel (7 of 8) ..................................................................................................	139
Figure 6-96 Remove the right panel (8 of 8) ..................................................................................................	139
Figure 6-97 Remove motor M1 or motor M2 (1 of 3) ......................................................................................	140
Figure 6-98 Remove motor M1 or motor M2 (2 of 3) ......................................................................................	140
Figure 6-99 Remove motor M1 or motor M2 (3 of 3) ......................................................................................	141
Figure 6-100 Remove the DC controller PCA (1 of 2) ....................................................................................	143
Figure 6-101 Remove the DC controller PCA (2 of 2) ....................................................................................	143
Figure 6-102 Remove the formatter PCA (1 of 2) ..........................................................................................	145
Figure 6-103 Remove the formatter PCA (2 of 2) ..........................................................................................	145

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Figure 6-104 Remove the fan (1 of 2) ............................................................................................................	146
Figure 6-105 Remove the fan (2 of 2) ............................................................................................................	146
Figure 6-106 Remove the Intermediate PCA (1 of 2) .....................................................................................	147
Figure 6-107 Remove the Intermediate PCA (2 of 2) .....................................................................................	147
Figure 6-108 Remove the right-front cover and power button (1 of 2) ...........................................................	148
Figure 6-109 Remove the right-front cover and power button (2 of 2) ...........................................................	149
Figure 6-110 Remove the power-supply sub PCA (1 of 6) ............................................................................	150
Figure 6-111 Remove the power-supply sub PCA (2 of 6) ............................................................................	151
Figure 6-112 Remove the power-supply sub PCA (3 of 6) ............................................................................	151
Figure 6-113 Remove the power-supply sub PCA (4 of 6) ............................................................................	152
Figure 6-114 Remove the power-supply sub PCA (5 of 6) ............................................................................	152
Figure 6-115 Remove the power-supply sub PCA (6 of 6) ............................................................................	153
Figure 6-116 Remove the fuser motor assembly (1 of 8) ...............................................................................	154
Figure 6-117 Remove the fuser motor assembly (2 of 8) ...............................................................................	155
Figure 6-118 Remove the fuser motor assembly (3 of 8) ...............................................................................	155
Figure 6-119 Remove the fuser motor assembly (4 of 8) ...............................................................................	156
Figure 6-120 Remove the fuser motor assembly (5 of 8) ...............................................................................	156
Figure 6-121 Remove the fuser motor assembly (6 of 8) ...............................................................................	157
Figure 6-122 Remove the fuser motor assembly (7 of 8) ...............................................................................	157
Figure 6-123 Remove the fuser motor assembly (8 of 8) ...............................................................................	158
Figure 6-124 Reinstall the fuser motor assembly ...........................................................................................	158
Figure 6-125 Remove the duplex reverse-drive assembly (1 of 4) ................................................................	159
Figure 6-126 Remove the duplex reverse-drive assembly (2 of 4) ................................................................	160
Figure 6-127 Remove the duplex reverse-drive assembly (3 of 4) ................................................................	160
Figure 6-128 Remove the duplex reverse-drive assembly (4 of 4) ................................................................	161
Figure 6-129 Remove the fuser (1 of 8) .........................................................................................................	162
Figure 6-130 Remove the fuser (2 of 8) .........................................................................................................	163
Figure 6-131 Remove the fuser (3 of 8) .........................................................................................................	163
Figure 6-132 Remove the fuser (4 of 8) .........................................................................................................	164
Figure 6-133 Remove the fuser (5 of 8) .........................................................................................................	164
Figure 6-134 Remove the fuser (6 of 8) .........................................................................................................	165
Figure 6-135 Remove the fuser (7 of 8) .........................................................................................................	165
Figure 6-136 Remove the fuser (8 of 8) .........................................................................................................	166
Figure 6-137 Reinstall the fuser .....................................................................................................................	167
Figure 6-138 Remove the paper-delivery assembly (1 of 4) ..........................................................................	168
Figure 6-139 Remove the paper-delivery assembly (2 of 4) ..........................................................................	169
Figure 6-140 Remove the paper-delivery assembly (3 of 4) ..........................................................................	169
Figure 6-141 Remove the paper-delivery assembly (4 of 4) ..........................................................................	170
Figure 6-142 Remove the front-door assembly (1 of 10) ...............................................................................	171
Figure 6-143 Remove the front-door assembly (2 of 10) ...............................................................................	172
Figure 6-144 Remove the front-door assembly (3 of 10) ...............................................................................	172
Figure 6-145 Remove the front-door assembly (4 of 10) ...............................................................................	173
Figure 6-146 Remove the front-door assembly (5 of 10) ...............................................................................	173
Figure 6-147 Remove the front-door assembly (6 of 10) ...............................................................................	174

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Figure 6-148 Remove the front-door assembly (7 of 10) ...............................................................................		174
Figure 6-149 Remove the front-door assembly (8 of 10) ...............................................................................		175
Figure 6-150 Remove the front-door assembly (9 of 10) ...............................................................................		175
Figure 6-151 Remove the front-door assembly (10 of 10) .............................................................................		176
Figure 6-152 Reinstall the front-door assembly (1 of 2) .................................................................................		176
Figure 6-153 Reinstall the front-door assembly (2 of 2) .................................................................................		177
Figure 7-1 DC controller connectors ..............................................................................................................		188
Figure 7-2	Major components ........................................................................................................................	190
Figure 7-3 Solenoid, clutches, and sensors ...................................................................................................		191
Figure 7-4	Rollers ...........................................................................................................................................	192
Figure 7-5 Motors and fans ............................................................................................................................		193
Figure 7-6	PCAs .............................................................................................................................................	194
Figure 7-7	Timing diagram .............................................................................................................................	195
Figure 7-8	Circuit diagram .............................................................................................................................	196
Figure 7-9 Engine test button location ...........................................................................................................		224
Figure 8-1 Covers, panels, and doors ............................................................................................................		234
Figure 8-2 Internal components (1 of 7) .........................................................................................................		236
Figure 8-3 Internal components (2 of 7) .........................................................................................................		238
Figure 8-4 Internal components (3 of 7) .........................................................................................................		240
Figure 8-5 Internal components (4 of 7) .........................................................................................................		242
Figure 8-6 Internal components (5 of 7) .........................................................................................................		244
Figure 8-7 Internal components, simplex products (6 of 7) ............................................................................		246
Figure 8-8 Internal components, duplex products (7 of 7) .............................................................................		248
Figure 8-9 Cassette (Tray 2) ..........................................................................................................................		250
Figure 8-10	Fuser assembly ...........................................................................................................................	252
Figure 8-11	PCAs ...........................................................................................................................................	254
Figure 8-12 Optional 250-sheet paper cassette .............................................................................................		256

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1 Product basics

●Quick access to product information

●Product comparison

●Product features

●Walkaround

●Supported operating systems

●Supported product software

●Connectivity

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Quick access to product information

Use the following Web site to find information about the product:

●www.hp.com/support/ljcp2020series

Table 1-1 Product guides

Guide	Description

Getting Started Guide	Provides step-by-step instructions for installing and setting up the product.

User Guide	Provides detailed information for using the product and for problem solving. Available on
	the product CD or in ui.message>Program Group if the software is installed on a computer.

HP ToolboxFX	To check the product status and settings, and to view problem solving information and online
	documentation, use HP ToolboxFX. You must have performed a recommended software
	installation to use HP ToolboxFX. See the user guide for more information about software
	installation.

Embedded Web server	Use the embedded Web server to view product and network status and manage printing
	functions from your computer. See Embedded Web server on page 9

Online Help	Provides information about options that are available in the printer drivers. To view a Help
	file, open the online Help through the printer driver.

2 Chapter 1 Product basics

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Product comparison

HP Color LaserJet CP2020 Series

●Prints up to 21 pages per minute (ppm) on letter-size media (20 ppm on A4-size media).

●50-sheet multipurpose tray (Tray 1) and 250-sheet input tray (Tray 2)

●Optional 250-sheet input tray (Tray 3) (standard on the x model)

●Hi-Speed universal serial bus (USB) 2.0 port

●Built-in networking to connect to 10Base-T/100Base-TX networks (n, dn, and x models only)

●Automatic duplexer (d, dn, and x models only)

Product features

Print	● Prints up to 21 pages per minute (ppm) on letter-size media (20 ppm on A4-size media).
	● Prints at 600 dots per inch (dpi).
	● Includes adjustable settings to optimize print quality.
	● The print cartridges use HP ColorSphere toner. For information about the number of pages
	the cartridges can print, see www.hp.com/go/pageyield. Actual yield depends on specific
	use.
	● Offers automatic duplexing (d, dn, and x models only).

Memory	● Includes 128-megabyte (MB) random-access memory (RAM).

Paper handling	● Tray 1 (multipurpose tray) holds up to 50 sheets of print media or 10 envelopes.
	● Tray 2 holds up to 250 sheets of print media.
	● Optional Tray 3 holds up to 250 sheets of print media (standard tray with the x model).
	● Output bin holds up to 150 sheets of print media.

Printer driver features	● ImageREt 3600 produces 3600 dpi print quality for fast, high-quality printing of business
	text and graphics.

Interface connections	● Includes a Hi-Speed USB 2.0 port
	● Built-in networking to connect to 10Base-T/100Base-TX networks (n, dn, and x models).

Environmental features	● To determine the ENERGY STAR® qualification status for this product see the Product
	Data Sheet or Specifications Sheet.

Economical printing	● Provides N-up printing (printing more than one page on a sheet).
	● The printer driver provides the option to manually print on both sides, or automatically with
	the d, dn, and x models.

Supplies	● Uses print cartridges with HP ColorSphere toner.

Accessibility	● Online user guide is compatible with text screen-readers.
	● Print cartridges can be installed and removed by using one hand.
	● All doors and covers can be opened by using one hand.

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Walkaround

Front and side view

1	Output bin (holds 150 sheets of standard paper)

2	Legal-output extension

3	Front door (provides access to the print cartridges)

4	Tray 1	(multipurpose tray)

5	Tray 2	(holds 250 sheets of standard paper and provides jam access)

6	Optional Tray 3 (holds 250 sheets of standard paper)

7	Power switch

8	Control panel

9	DIMM door (for adding more memory)

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Back view

1	Hi-Speed USB 2.0 port and network port. (Network port present on HP Color LaserJet CP2025n, HP Color LaserJet
	CP2025dn, and HP Color LaserJet CP2025x models only.)

2	Power connection

3	Rear door (for jam access)

Model and serial numbers

The model number and serial number appear on an identification label located inside the front door.

The label contains information about the country/region of origin and the revision level, manufacturing date, production code, and production number of the product. The label also contains power rating and regulatory information.

CNSerial	Product		No.

CNBBR No.			Q3948M
ProduiProductt R21212CNB
du ofJ J 234347B		123456
aponapan	7

USA ISE,HEWLETTID IN		-
BO11311C			RD
	AHODENPACKA
	22	8	BL
50/600-		3714VD.
JanManuf	Hz,240V
uary	2007	2.
	actured3,	5A~AC
			(2,5A)

ReNguumlatoeéroryreMégle m odelenta Nu ire m du ber m BOISodeBéle - 040500

S
ITE	:BOI
	:BOI
	>PET<

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Supported operating systems

The product supports the following operating systems:

●Windows 2000

●Windows XP (32-bit and 64-bit)

●Windows Server 2003 (32-bit)

●Windows Vista (32-bit and 64-bit)

●Windows Vista Starter

●Mac OS X V10.2.8 and later

●Linux; Web only (print driver only)

●UNIX model scripts; Web only (print driver only)

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Supported product software

Software included with the product

There are several options for completing a recommended install. The Easy Install will complete the installation with default settings. The Advanced Install allows you to select custom settings and select the components that are installed.

Recommended Installation for Windows

●Printer driver

●HP Update program

●HP Customer Participation Program

●Shop for HP Supplies program

Express Installation

An Express installation includes the following software:

●Printer driver

●Printer status and alerts

NOTE: Use the Microsoft® Add Printer wizard to install the HP Postscript Universal Emulation Print Drivers.

Macintosh software

●HP Product Setup Assistant

●HP Device Configuration

●HP Uninstaller

Printer driver

The product comes with software (called a printer driver) for Windows that allows the computer to communicate with the product. Printer drivers provide access to product features, such as printing on custom-sized paper, resizing documents, and inserting watermarks.

NOTE: The most recent drivers are available at www.hp.com/go/ljcp2020series_software. Depending on the configuration of Windows-based computers, the installation program for the product software automatically checks the computer for Internet access to obtain the latest drivers.

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Other software provided

Software for Windows

HP ToolboxFX

HP ToolboxFX is a software program that you can use for the following tasks:

●Checking the product status

●Checking the supplies status and ordering supplies online

●Setting up alerts

●Viewing and changing product settings

●Viewing product documentation

●Gaining access to troubleshooting and maintenance tools

To use HP ToolboxFX, perform a Full Installation of the product software from the product CD.

Software for Macintosh

The HP installer provides PostScript Printer Description (PPD) files, Printer Dialog Extensions (PDEs), and the configure device software for use with Macintosh computers.

PostScript Printer Description (PPD) files

The PPD, in combination with the Apple PostScript printer drivers, provides access to product features. An installation program for the PPD and other software is provided on the product CD.

Configure the product using a Macintosh

For information about configuring the product using a Macintosh and the embedded Web server (EWS), see Embedded Web server on page 40.

Status Alerts software

The Status Alerts software provides information about the current status of the product.

The software also provides pop-up alerts when certain events occur, such as an empty tray or a problem with the product. The alert includes information about solving the problem.

Software for networks

HP Web Jetadmin

HP Web Jetadmin is a browser-based management tool for network-connected printers within your intranet. It should be installed only on the system administrator’s computer.

To download a current version of HP Web Jetadmin and for the latest list of supported host systems, go to www.hp.com/go/webjetadmin.

When installed on a host server, any client can gain access to HP Web Jetadmin by using a supported Web browser (such as Microsoft® Internet Explorer 6.x or Netscape Navigator 7.x or later) and navigating to the HP Web Jetadmin host.

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Embedded Web server

The EWS provides access to information about product and network activities. This information appears in a Web browser, such as Microsoft Internet Explorer, Netscape Navigator, or Macintosh OS Safari.

The embedded Web server resides on the product. It is not loaded on a network server. No special software is installed or configured, but you must have a supported Web browser on your computer.

NOTE: Macintosh users can open the EWS by clicking the Utility button when viewing the print queue. This starts a Web browser, such as Safari, which allows the user to access the EWS. The EWS can also be accessed directly by typing the network IP address or DNS name of the product into the Web browser.

HP USB EWS Gateway software, which is automatically installed, also allows a Web browser to access the product if the product is connected using a USB cable. Click the Utility button when using a USB connection to access the EWS though the Web browser.

For a complete explanation of the features and functionality of the embedded Web server, see Embedded Web server on page 40.

Linux

For information, go to www.hp.com/go/linuxprinting.

System requirements

Windows requirements

●512 MB of RAM

●350 MB of disk space

Macintosh requirements

●256 MB of RAM

●150 MB of disk space

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Connectivity

Supported network operating systems

The following operating systems support network printing:

Recommended software installation		Printer driver only
●	Windows 2003 Server (64-bit)	●	Linux (Web only)
●	Windows XP (32-bit and 64-bit)	●	UNIX model scripts (Web only)

●Windows Vista (32-bit and 64-bit)

●Mac OS X V10.2.8, V10.3, V10.5

Printer sharing disclaimer

HP does not support peer-to-peer networking, as the feature is a function of Microsoft operating systems and not of the HP printer drivers. Go to Microsoft at www.microsoft.com.

Supported network protocols

The product supports the TCP/IP network protocol. It is the most widely used and accepted networking protocol. Many networking services use this protocol. This product also supports IPv4 and IPv6. The following tables list the networking services/protocols that are supported on the product.

Table 1-2 Printing

Service name	Description

port9100 (Direct Mode)	Printing service

Line printer daemon (LPD)	Printing service

ws-print	Microsoft plug-and-play printing solution

Table 1-3 Network product discovery

Service name	Description

SLP (Service Location Protocol)	Device Discovery Protocol, used to help find and configure
	network devices. Used primarily by Microsoft-based software
	programs.

mDNS (multicast Domain Name Service - also known as	Device Discovery Protocol, used to help find and configure
“Rendezvous” or “Bonjour”)	network devices. Used primarily by Apple Macintosh-based
	software programs.

ws-discover	Used by Microsoft-based software programs

Table 1-4 Messaging and management

Service name	Description

HTTP (hypertext transfer protocol)	Allows Web browsers to communicate with embedded Web
	server.

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