HP 3390, 3392 Service manual

4.5 (2)

HP LaserJet 3390/3392 All-in-One

Service Manual

HP LaserJet 3390/3392 All-in-One

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 Q6500-90901

Edition 2, 10/2005

Safety information

WARNING!

Potential Shock Hazard

Always follow basic safety precautions when using the all-in-one 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 all-in-one.

Use only a grounded electrical outlet when connecting the all-in-one 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 all-in-one. Replace damaged cords immediately.

Unplug the all-in-one from wall outlets before cleaning.

Do not install or use the all-in-one near water or when you are wet.

Install the product securely on a stable surface.

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

If the all-in-one 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.

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 logo® are U.S. registered marks of the United States Environmental Protection Agency.

FCC Regulations

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If this equipment is not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase separation between equipment and receiver.

Connect equipment to an outlet on a circuit different from that to which the receiver is located.

Consult your dealer or an experienced radio/ TV technician.

Any changes or modifications to the printer that are not expressly approved by HP could void the user's authority to operate this equipment.

Use of a shielded interface cable is required to comply with the Class B limits of Part 15 of FCC rules.

This equipment complies with FCC rules, Parts 15 and 68. On the back of this equipment is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN) for this equipment. If requested, this information must be provided to the telephone company. The REN is used to determine the quantity of devices which may be connected to the telephone line. Excessive RENs on the telephone line may result in the devices not ringing in response to an incoming call. In most, but not all, areas, the sum of the RENs should not exceed five (5.0). To be certain of the number of devices that may be connected to the line, as determined by the total RENs, contact the telephone company to determine the maximum REN for the calling area.

This equipment uses the following USOC jacks: RJ11C.

An FCC-compliant telephone cord and modular plug is provided with this equipment.

This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack which is Part 68 compliant. This equipment cannot be used on telephone company-provided coin service. Connection to Party Line Service is subject to state tariffs. If this equipment causes harm to the telephone network, the telephone company will notify you in advance that temporary discontinuance of service may be required. If advance notice is not practical, the telephone company will notify the customer as soon as possible. Also, you will be advised of your right to file a complaint with the FCC if you believe it is necessary. The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the operation of the equipment. If this happens, the telephone company will provide advance notice in order for you to make the necessary modifications in order to maintain uninterrupted service. If trouble is experienced with this equipment, please see the numbers in the front of this manual for repair and (or) warranty information. If the trouble is causing harm to the telephone network, the telephone company may request you remove the equipment from the network until the problem is resolved. The following repairs can be done by the customer: Replace any original equipment that came with the device. This includes the print cartridge, the supports for trays and bins, the power cord, and the telephone cord. It is recommended that the customer install an ac surge arrestor in the ac outlet to which this device is connected. This is to avoid damage to the equipment caused by local lightning strikes and other electrical surges.

See the electronic user guide for more regulatory information.

Table of contents

1 Product information
Quick access to all-in-one information .................................................................................................	2
All-in-one configurations .......................................................................................................................	3
All-in-one features ................................................................................................................................	5
Product walkaround ..............................................................................................................................	7
HP LaserJet 3390/3392 all-in-one .......................................................................................	7
Interface ports ......................................................................................................................	9
Control panel .......................................................................................................................	9
Model and serial numbers ..................................................................................................................	10
Software description ...........................................................................................................................	11
Supported drivers ..............................................................................................................	11
Additional drivers ...............................................................................................................	11
Software installation ...........................................................................................................................	12
Typical installation .............................................................................................................	12
Minimum installation ..........................................................................................................	12
Software for Windows ........................................................................................................................	13
Software components for Windows ...................................................................................	13
HP ToolboxFX ...................................................................................................	13
Embedded Web server (EWS) ..........................................................................	13
Software for Macintosh .......................................................................................................................	14
HP Director ........................................................................................................................	14
Macintosh Configure Device (Mac OS X V10.3 and Mac OS X V10.4) .............................	14
PDEs (Mac OS X V10.3 and Mac OS X V10.4) .................................................................	15
Uninstalling software ..........................................................................................................................	16
Windows ............................................................................................................................	16
Macintosh ..........................................................................................................................	16
Media specifications ...........................................................................................................................	17
Supported media weights and sizes ..................................................................................	17
Media to avoid ...................................................................................................................	18
Media that can damage the all-in-one ...............................................................................	19
2 Installation
Operating environment .......................................................................................................................	22
Minimum system requirements ..........................................................................................	23
Unpacking ..........................................................................................................................................	24
Installing input devices .......................................................................................................................	25
ADF input tray ....................................................................................................................	25
250-sheet input tray (tray 3) ...............................................................................................	26
Installing the control-panel faceplate ..................................................................................................	27

ENWW

Loading media ....................................................................................................................................	28
Loading documents to fax, copy, or scan ..........................................................................	28
Loading the single-sheet priority input slot (tray 1) ............................................................	30
Loading tray 2 or optional tray 3 ........................................................................................	30
Installing accessories .........................................................................................................................	32
Removing and replacing a DIMM ......................................................................................	32
3 Maintenance
Managing supplies .............................................................................................................................	36
Life expectancies of supplies and the all-in-one ................................................................	36
Ordering supplies ...............................................................................................................	36
Storing print cartridges .......................................................................................................	37
Replacing and recycling supplies ......................................................................................	37
Replacing the print cartridge ..............................................................................................	39
Replacing the staple cassette ............................................................................................	42
Replacing the tray 2 pickup roller ......................................................................................	44
Replacing the tray 2 and optional tray 3 separation pad ...................................................	49
HP policy on non-HP supplies ...........................................................................................	52
Resetting the all-in-one for non-HP supplies .....................................................	52
HP fraud hotline .................................................................................................................	52
Cleaning the all-in-one .......................................................................................................................	53
To clean the exterior ..........................................................................................................	53
Cleaning the flatbed scanner glass ....................................................................................	53
Cleaning the scanner-cover backing .................................................................................	55
Cleaning the tray 2 pickup roller .......................................................................................	56
Cleaning the ADF pickup-roller assembly ..........................................................................	60
Cleaning the print path .......................................................................................................	63
Managing the all-in-one ......................................................................................................................	65
Information pages ..............................................................................................................	65
Using the HP ToolboxFX ....................................................................................................................	68
To view the HP ToolboxFX ................................................................................................	68
Status .................................................................................................................................	68
Event log ...........................................................................................................	69
Alerts ..................................................................................................................................	69
Set up status alerts ...........................................................................................	69
Set up e-mail alerts ...........................................................................................	69
Fax .....................................................................................................................................	70
Fax tasks ...........................................................................................................	70
Fax phone book ................................................................................................	70
Fax send log ......................................................................................................	73
Fax receive log ..................................................................................................	73
Help (Documentation) ........................................................................................................	73
System settings .................................................................................................................	74
Device information ............................................................................................	74
Paper handling ..................................................................................................	75
Print quality .......................................................................................................	75
Paper types .......................................................................................................	75
System setup ....................................................................................................	76
Service ..............................................................................................................	76
Device Polling ...................................................................................................	76

ENWW

Print settings ......................................................................................................................	76
Printing ..............................................................................................................	76
PCL 5e ..............................................................................................................	77
PostScript ..........................................................................................................	77
Network settings ................................................................................................................	77
Using Macintosh Configure Device (Mac OS X V10.3 and Mac OS X V10.4) ...................................	78
Understanding the Embedded Web server ........................................................................................	79
Features .............................................................................................................................	79
4 Theory of operation
Basic operation ...................................................................................................................................	82
Sequence of operation for the base unit ............................................................................	82
Scanner and ADF functions and operation ........................................................................................	84
Scanner functions .............................................................................................................	84
Scanner operation .............................................................................................................	85
ADF operation ....................................................................................................................	85
ADF paper path and ADF sensors .....................................................................................	86
ADF jam detection .............................................................................................................	87
Internal components (base unit) .........................................................................................................	88
Engine control system ........................................................................................................................	90
Laser/scanner system ........................................................................................................................	92
Pickup/feed/delivery system ...............................................................................................................	93
Image-formation system .....................................................................................................................	95
Fax functions and operation ...............................................................................................................	99
Computer and network security features ...........................................................................	99
PSTN operation .................................................................................................................	99
To receive faxes when you hear fax tones ......................................................................	100
Distinctive ring function ....................................................................................................	100
Faxing with Voice over IP services ..................................................................................	101
The fax subsystem ...........................................................................................................	101
Formatter in the fax subsystem .......................................................................................	101
LIU in the fax subsystem .................................................................................................	102
Safety isolation ................................................................................................	102
Safety-protection circuitry ................................................................................	102
Data path .........................................................................................................	103
Hook state .......................................................................................................	103
Downstream current detection ........................................................................	103
Hook switch control .........................................................................................	104
Ring detect ......................................................................................................	104
Line current control .........................................................................................	104
Billing- (metering-) tone filters .........................................................................	104
Fax page storage in flash memory ..................................................................................	105
Stored fax pages .............................................................................................	105
Advantages of flash memory storage .............................................................	105
5 Removal and replacement
Introduction .......................................................................................................................................	108
Removal and replacement strategy ................................................................................	108
Electrostatic discharge .....................................................................................................	108
User-replaceable parts ....................................................................................................	109

ENWW

vii

Required tools .................................................................................................................	109
Before performing service ................................................................................................	109
After performing service ...................................................................................................	110
Post-service tests ............................................................................................................	110
Test 1 (print-quality test) .................................................................................	110
Test 2 (copy-quality test) .................................................................................	110
Test 3 (fax-quality test) ....................................................................................	111
Parts removal order .........................................................................................................	112
Remove the print cartridge ..............................................................................................	113
External panels, covers, and doors ..................................................................................................	114
Right cover .......................................................................................................................	114
Left cover .........................................................................................................................	116
Print-cartridge door ..........................................................................................................	118
Rear cover .......................................................................................................................	120
Top cover .........................................................................................................................	122
Replacing the ADF pickup-roller assembly ......................................................................................	124
ADF assembly ..................................................................................................................................	127
Scanner/ADF assembly ....................................................................................................................	129
Bezel and control panel ....................................................................................................................	131
Internal assemblies ..........................................................................................................................	134
Convenience-stapler assembly (HP LaserJet 3392 only) ................................................	134
Convenience-stapler power supply (HP LaserJet 3392 only) ..........................................	136
Convenience-stapler ac inlet cable (HP LaserJet 3392 only) ..........................................	138
Convenience-stapler power supply bracket and strap (HP LaserJet 3392 only) .............	139
Speaker ...........................................................................................................................	140
Power-switch PCA ...........................................................................................................	142
Formatter .........................................................................................................................	143
Duplex assembly .............................................................................................................	146
Laser/scanner ..................................................................................................................	148
Memory-tag-reader assembly ..........................................................................................	150
Fuser ................................................................................................................................	152
Fan ..................................................................................................................	152
Duplex-drive gears ..........................................................................................	154
Duplex solenoid ...............................................................................................	155
Fuser ................................................................................................................................	157
Interlock assembly ...........................................................................................................	163
ECU .................................................................................................................................	164
Main motor .......................................................................................................................	169
Pickup-and-feed assemblies ............................................................................................	171
Transfer roller ..................................................................................................	171
Registration-roller assembly ............................................................................................	172
Main gear assembly and tray 2 pickup solenoid ..............................................................	173
6 Troubleshooting
Troubleshooting process ..................................................................................................................	178
Troubleshooting checklist ................................................................................................	178
Jams .................................................................................................................................................	181
Causes of jams ................................................................................................................	181
Tips to avoid jams ............................................................................................................	182
Where to look for jams .....................................................................................................	182

viii

ENWW

Jams in the print-cartridge area .......................................................................................	183
Jams in the trays ..............................................................................................................	186
Jams in the output bin ......................................................................................................	191
Jams in the straight-through output path .........................................................................	192
Jams in the duplex path ...................................................................................................	194
Jams in the ADF ..............................................................................................................	199
Jams in the convenience stapler (HP LaserJet 3392 only) ..............................................	204
Control-panel messages ..................................................................................................................	207
Alerts and warning messages ..........................................................................................	207
Critical-error message-tables ...........................................................................................	212
Print problems ..................................................................................................................................	215
Print-quality problems ......................................................................................................	215
Improving print quality .....................................................................................	215
Understanding print-quality settings ...............................................	215
To temporarily change print-quality settings ..................	215
To change print-quality settings for all future jobs ..........	216
Identifying and correcting print defects ...........................................................	217
Print-quality checklist ......................................................................	217
General print-quality issues ............................................................	217
Media-handling problems ................................................................................................	222
Print-media guidelines .....................................................................................	222
Solving print-media problems ..........................................................................	222
Performance problems ....................................................................................................	224
Scan problems .................................................................................................................................	225
Solving scanned-image problems ....................................................................................	225
Scan-quality problems .....................................................................................................	227
Preventing problems .......................................................................................	227
Solving scan-quality problems ........................................................................	227
Copy problems .................................................................................................................................	228
Preventing problems ........................................................................................................	228
Image problems ...............................................................................................................	228
Media-handling problems ................................................................................................	229
Performance problems ....................................................................................................	231
Fax troubleshooting ..........................................................................................................................	232
General fax troubleshooting .............................................................................................	232
Problems receiving faxes .................................................................................................	234
Problems sending faxes ..................................................................................................	236
Voice-call problems .........................................................................................................	238
Media-handling problems ................................................................................................	238
Performance problems ....................................................................................................	239
Control-panel display problems ........................................................................................................	240
Convenience-stapler problems (HP LaserJet 3392 only) .................................................................	240
DSL problems ...................................................................................................................................	241
PABX line problems .........................................................................................................	241
ADF problems ..................................................................................................................................	242
Functional checks .............................................................................................................................	244
Drum rotation test ............................................................................................................	244
Engine test .......................................................................................................................	245
Half self-test functional check ..........................................................................................	246
To perform a half self-test check .....................................................................................	246

ENWW

To perform other checks .................................................................................................	246
Heating element check ....................................................................................................	247
High-voltage contacts check ............................................................................................	247
To check the print-cartridge contacts ............................................................	247
To check the high-voltage connector assembly .............................................	248
Service-mode functions ....................................................................................................................	249
NVRAM initialization ........................................................................................................	249
Secondary service menu .................................................................................................	249
Troubleshooting tools .......................................................................................................................	251
All-in-one pages and reports ............................................................................................	251
Demo page ......................................................................................................	251
Configuration page ..........................................................................................	251
Supplies Status page ......................................................................................	251
Fax reports .......................................................................................................................	252
Fax activity log ................................................................................................	252
Fax call report .................................................................................................	252
Phone book report ...........................................................................................	252
Billing-code report ...........................................................................................	253
HP ToolboxFX .................................................................................................................	253
To view HP ToolboxFX ...................................................................................	253
Troubleshooting tab ........................................................................................	253
Service menu ..................................................................................................................	254
Restoring the factory-set defaults ...................................................................	254
Cleaning the paper path ..................................................................................	254
T.30 protocol trace ..........................................................................................	255
Archive print ....................................................................................................	255
Firmware updates and recovery .......................................................................................................	256
Firmware update by using a flash executable file ............................................................	256
Firmware-recovery DIMM ................................................................................................	256
7 Parts
Accessories and ordering information ..............................................................................................	259
Supplies ............................................................................................................................................	260
Memory ............................................................................................................................................	260
Cable and interface accessories ......................................................................................................	260
Paper-handling accessories ............................................................................................................	261
Scanner/ADF replacement parts ......................................................................................................	261
Control-panel bezels ........................................................................................................................	262
Supplementary documentation and support .....................................................................................	263
Troubleshooting diagrams ................................................................................................................	266
Repetitive image defects .................................................................................................	266
Interface connectors .......................................................................................................	267
Formatter connectors .......................................................................................................	268
Line interface unit (LIU) ...................................................................................................	269
Solenoids .........................................................................................................................	270
Switches and sensors ......................................................................................................	271
Rollers and pads ..............................................................................................................	272
PCAs (base unit) ..............................................................................................................	273
Major components (base unit) .........................................................................................	274
Scanner and ADF ............................................................................................................	275

ENWW

Circuit diagram .................................................................................................................	276
How to use the parts lists and diagrams ..........................................................................................	278
Types of screws ...............................................................................................................	278
Scanner and ADF assemblies ..........................................................................................................	280
Scanner components .......................................................................................................................	282
ADF components ..............................................................................................................................	284
Convenience stapler components (HP LJ 3392 only) ......................................................................	286
Formatter, LIU, HP jewel, and nameplate ........................................................................................	288
External covers and panels ..............................................................................................................	290
Internal components (1 of 4) ............................................................................................................	292
Internal components (2 of 4) ............................................................................................................	294
Internal components (3 of 4) ............................................................................................................	296
Internal components (4 of 4) ............................................................................................................	298
Engine-controller assembly ..............................................................................................................	300
Main-drive assembly ........................................................................................................................	302
Duplexing-drive assembly ................................................................................................................	304
Tray 2 cassette and tray 3 cassette/feeder ......................................................................................	306
Duplexing assembly .........................................................................................................................	308
Fuser assembly ................................................................................................................................	310
Alphabetical parts list .......................................................................................................................	312
Numerical parts list ...........................................................................................................................	317
Appendix A All-in-one specifications
Physical specifications .....................................................................................................................	324
Supplies specifications .....................................................................................................................	324
Performance .....................................................................................................................................	325
Electrical specifications ....................................................................................................................	327
Power consumption ..........................................................................................................................	327
Environmental specifications ............................................................................................................	328
Acoustic emissions ...........................................................................................................................	328
Appendix B Warranty information
Hewlett-Packard limited warranty statement ....................................................................................	330
Print Cartridge Limited Warranty Statement .....................................................................................	331
Extended warranty ...........................................................................................................................	332
Appendix C Regulatory statements
Declaration of conformity (HP LaserJet 3390, 3392, 3055, and 3050) ............................................	334
Country/region-specific safety statements .......................................................................................	335
Laser safety statement ....................................................................................................	335
Canadian DOC statement ................................................................................................	335
Korean EMI statement .....................................................................................................	335
Finnish laser statement ....................................................................................................	336
Japan power cord statement ...........................................................................................	336
Index .................................................................................................................................................................	337

ENWW

xii

ENWW

List of tables

Table 1-1	All-in-one guides ................................................................................................................................	2
Table 1-2	All-in-one configurations .....................................................................................................................	3
Table 1-3	All-in-one features ..............................................................................................................................	5
Table 1-4 Supported printer drivers ..................................................................................................................		11
Table 1-5 Single-sheet priority input slot (tray 1) ..............................................................................................		17
Table 1-6 Tray 2 and optional tray 3 ................................................................................................................		17
Table 1-7	ADF ..................................................................................................................................................	18
Table 4-1 Sequence of operation .....................................................................................................................		82
Table 4-2	Power-on sequence .........................................................................................................................	83
Table 6-1 Alerts and warning messages .......................................................................................................		207
Table 6-2	Critical-error messages ..................................................................................................................	213
Table 7-1	Control-panel bezels ......................................................................................................................	262
Table 7-2 Service and training support ..........................................................................................................		263
Table 7-3	User guides ....................................................................................................................................	263
Table 7-4 Getting started guide ......................................................................................................................		263
Table 7-5 Technical support Web sites ..........................................................................................................		264
Table 7-6 Repetitive image defects ................................................................................................................		266
Table 7-7 Scanner and ADF assemblies ........................................................................................................		281
Table 7-8	Scanner components .....................................................................................................................	283
Table 7-9	ADF components ...........................................................................................................................	285
Table 7-10 Convenience stapler components (HP LJ 3392 only) ..................................................................		287
Table 7-11 Formatter, LIU, HP jewel, and nameplate ....................................................................................		289
Table 7-12 External covers and panels ..........................................................................................................		291
Table 7-13 Internal components (1 of 4) ........................................................................................................		293
Table 7-14 Internal components (2 of 4) ........................................................................................................		295
Table 7-15 Internal components (3 of 4) ........................................................................................................		297
Table 7-16 Internal components (4 of 4) ........................................................................................................		299
Table 7-17	Engine-controller assembly ..........................................................................................................	301
Table 7-18	Main-drive assembly ....................................................................................................................	303
Table 7-19	Duplexing-drive assembly ............................................................................................................	305
Table 7-20 Cassette, tray 2 (250-sheet) .........................................................................................................		307
Table 7-21	Duplexing assembly .....................................................................................................................	309
Table 7-22	Fuser assembly ............................................................................................................................	311
Table 7-23 Alphabetical parts list ...................................................................................................................		312
Table 7-24 Numerical parts list .......................................................................................................................		317
Table A-1	Physical specifications ...................................................................................................................	324
Table A-2	Supplies specifications ..................................................................................................................	324
Table A-3	Performance ..................................................................................................................................	325
Table A-4	Electrical specifications ..................................................................................................................	327
Table A-5 Power consumption (average, in watts) .......................................................................................		327

ENWW

xiii

Table A-6	Environmental specifications ........................................................................................................	328
Table A-7	Acoustic emissions ........................................................................................................................	328

xiv

ENWW

List of figures

Figure 1-1 HP LaserJet 3390/3392 all-in-one ....................................................................................................		3
Figure 1-2	Front view .........................................................................................................................................	7
Figure 1-3	Back view ..........................................................................................................................................	8
Figure 1-4	Interface ports ...................................................................................................................................	9
Figure 1-5	Control panel .....................................................................................................................................	9
Figure 1-6 HP LaserJet 3390/3392 all-in-one identification label .....................................................................		10
Figure 2-1	Operating environment ...................................................................................................................	22
Figure 2-2 HP LaserJet 3390/3392 all-in-one package contents .....................................................................		24
Figure 2-3 Install the ADF input tray .................................................................................................................		25
Figure 2-4 Install the 250-sheet input tray ........................................................................................................		26
Figure 2-5 Install the control-panel faceplate ...................................................................................................		27
Figure 2-6 Load a document onto the flatbed scanner ....................................................................................		28
Figure 2-7 Load documents into the ADF (1 of 2) ............................................................................................		29
Figure 2-8 Load documents into the ADF (2 of 2) ............................................................................................		29
Figure 2-9 Load the single-sheet priority input slot (tray 1) ..............................................................................		30
Figure 2-10 Loading tray 2 or tray 3 (1 of 3) ....................................................................................................		30
Figure 2-11 Load tray 2 or tray 3 (2 of 3) .........................................................................................................		31
Figure 2-12 Load tray 2 or tray 3 (3 of 3) .........................................................................................................		31
Figure 2-13 Removing and replacing a DIMM (1 of 4) .....................................................................................		32
Figure 2-14 Removing and replacing a DIMM (2 of 4) .....................................................................................		32
Figure 2-15 Removing and replacing a DIMM (3 of 4) .....................................................................................		33
Figure 2-16 Removing and replacing a DIMM (4 of 4) .....................................................................................		33
Figure 3-1 Replacing the print cartridge (1 of 5) ..............................................................................................		39
Figure 3-2 Replacing the print cartridge (2 of 5) ..............................................................................................		39
Figure 3-3 Replacing the print cartridge (3 of 5) ..............................................................................................		40
Figure 3-4 Replacing the print cartridge (4 of 5) ..............................................................................................		40
Figure 3-5 Replacing the print cartridge (5 of 5) ..............................................................................................		41
Figure 3-6 Install the staple cassette (1 of 4) ...................................................................................................		42
Figure 3-7 Install the staple cassette (2 of 4) ...................................................................................................		42
Figure 3-8 Install the staple cassette (3 of 4) ...................................................................................................		43
Figure 3-9 Install the staple cassette (4 of 4) ...................................................................................................		43
Figure 3-10 Replace the tray 2 pickup roller (1 of 7) ........................................................................................		44
Figure 3-11 Replace the tray 2 pickup roller (2 of 7) ........................................................................................		45
Figure 3-12 Replace the tray 2 pickup roller (3 of 7) ........................................................................................		45
Figure 3-13 Replace the tray 2 pickup roller (4 of 7) ........................................................................................		46
Figure 3-14 Replace the tray 2 pickup roller (5 of 7) ........................................................................................		46
Figure 3-15 Replace the tray 2 pickup roller (6 of 7) ........................................................................................		47
Figure 3-16 Replace the tray 2 pickup roller (7 of 7) ........................................................................................		47
Figure 3-17 Replace the tray 2 or tray 3 separation pad (1 of 6) .....................................................................		49
Figure 3-18 Replace the tray 2 or tray 3 separation pad (2 of 6) .....................................................................		49

ENWW

Figure 3-19 Replace the tray 2 or tray 3 separation pad (3 of 6) .....................................................................		50
Figure 3-20 Replace the tray 2 or tray 3 separation pad (4 of 6) .....................................................................		50
Figure 3-21 Replace the tray 2 or tray 3 separation pad (5 of 6) .....................................................................		51
Figure 3-22 Replace the tray 2 or tray 3 separation pad (6 of 6) .....................................................................		51
Figure 3-23 Cleaning the scanner glass (1 of 2) ..............................................................................................		53
Figure 3-24 Cleaning the scanner glass (2 of 2) ..............................................................................................		54
Figure 3-25 Cleaning the scanner-cover backing ............................................................................................		55
Figure 3-26 Cleaning the tray 2 pickup roller (1 of 6) .......................................................................................		56
Figure 3-27 Cleaning the tray 2 pickup roller (2 of 6) .......................................................................................		56
Figure 3-28 Cleaning the tray 2 pickup roller (3 of 6) .......................................................................................		57
Figure 3-29 Cleaning the tray 2 pickup roller (4 of 6) .......................................................................................		57
Figure 3-30 Cleaning the tray 2 pickup roller (5 of 6) .......................................................................................		58
Figure 3-31 Cleaning the tray 2 pickup roller (6 of 6) .......................................................................................		58
Figure 3-32 Cleaning the ADF pickup-roller assembly (1 of 7) ........................................................................		60
Figure 3-33 Cleaning the ADF pickup-roller assembly (2 of 7) ........................................................................		60
Figure 3-34 Cleaning the ADF pickup-roller assembly (3 of 7) ........................................................................		61
Figure 3-35 Cleaning the ADF pickup-roller assembly (4 of 7) ........................................................................		61
Figure 3-36 Cleaning the ADF pickup-roller assembly (5 of 7) ........................................................................		62
Figure 3-37 Cleaning the ADF pickup-roller assembly (6 of 7) ........................................................................		62
Figure 3-38 Cleaning the ADF pickup-roller assembly (7 of 7) ........................................................................		63
Figure 3-39 Cleaning the print path ..................................................................................................................		63
Figure 4-1 HP LaserJet 3390/3392 all-in-one system block diagram ..............................................................		82
Figure 4-2	Optical system ................................................................................................................................	84
Figure 4-3 ADF paper path ...............................................................................................................................		86
Figure 4-4 Internal components (base unit) .....................................................................................................		88
Figure 4-5 Engine control system .....................................................................................................................		90
Figure 4-6 Engine-control-system circuit diagram ............................................................................................		91
Figure 4-7	Laser/scanner system .....................................................................................................................	92
Figure 4-8	Pickup/feed/delivery system ...........................................................................................................	94
Figure 4-9	Image-formation system .................................................................................................................	95
Figure 4-10	Primary charging ...........................................................................................................................	95
Figure 4-11	Developing ....................................................................................................................................	96
Figure 4-12	Transfer .........................................................................................................................................	97
Figure 4-13	Separation .....................................................................................................................................	97
Figure 4-14	Fusing ...........................................................................................................................................	98
Figure 4-15	Drum cleaning ...............................................................................................................................	98
Figure 5-1 Phillips and pozidrive screwdriver comparison .............................................................................		109
Figure 5-2	Parts-removal tree ........................................................................................................................	112
Figure 5-3 Remove the print cartridge (1 of 2) ...............................................................................................		113
Figure 5-4 Remove the print cartridge (2 of 2) ...............................................................................................		113
Figure 5-5 Remove the right cover (1 of 4) ....................................................................................................		114
Figure 5-6 Remove the right cover (2 of 4) ....................................................................................................		114
Figure 5-7 Remove the right cover (3 of 4) ....................................................................................................		115
Figure 5-8 Remove the right cover (4 of 4) ....................................................................................................		115
Figure 5-9 Remove the left cover (1 of 3) .......................................................................................................		116
Figure 5-10 Remove the left cover (2 of 3) .....................................................................................................		116
Figure 5-11 Remove the left cover (3 of 3) .....................................................................................................		117
Figure 5-12 Removing the print-cartridge door (1 of 2) ..................................................................................		118
Figure 5-13 Removing the print-cartridge door (2 of 2) ..................................................................................		119
Figure 5-14 Remove the rear cover (1 of 2) ...................................................................................................		120

xvi

ENWW

Figure 5-15 Remove the rear cover (2 of 2) ...................................................................................................	121
Figure 5-16 Remove the top cover (1 of 3) ....................................................................................................	122
Figure 5-17 Remove the top cover (2 of 3) ....................................................................................................	122
Figure 5-18 Remove the top cover (3 of 3) ....................................................................................................	123
Figure 5-19 Replacing the ADF pickup-roller assembly (1 of 6) ....................................................................	124
Figure 5-20 Replacing the ADF pickup-roller assembly (2 of 6) ....................................................................	124
Figure 5-21 Replacing the ADF pickup-roller assembly (3 of 6) ....................................................................	125
Figure 5-22 Replacing the ADF pickup-roller assembly (4 of 6) ....................................................................	125
Figure 5-23 Replacing the ADF pickup-roller assembly (5 of 6) ....................................................................	126
Figure 5-24 Replacing the ADF pickup-roller assembly (6 of 6) ....................................................................	126
Figure 5-25 Remove the ADF assembly (1 of 3) ............................................................................................	127
Figure 5-26 Remove the ADF assembly (2 of 3) ............................................................................................	127
Figure 5-27 Remove the ADF assembly (3 of 3) ............................................................................................	128
Figure 5-28 Remove the scanner/ADF assembly (1 of 3) ..............................................................................	129
Figure 5-29 Remove the scanner/ADF assembly (2 of 3) ..............................................................................	129
Figure 5-30 Remove the scanner/ADF assembly (3 of 3) ..............................................................................	130
Figure 5-31 Remove the bezel and control panel (1 of 4) ..............................................................................	131
Figure 5-32 Remove the bezel and control panel (2 of 4) ..............................................................................	131
Figure 5-33 Remove the bezel and control panel (3 of 4) ..............................................................................	132
Figure 5-34 Remove the bezel and control panel (4 of 4) ..............................................................................	133
Figure 5-35 Remove the convenience-stapler assembly (1 of 2) ...................................................................	134
Figure 5-36 Remove the convenience-stapler assembly (2 of 2) ...................................................................	135
Figure 5-37 Remove the convenience-stapler power assembly (1 of 3) ........................................................	136
Figure 5-38 Remove the convenience-stapler power assembly (2 of 3) ........................................................	136
Figure 5-39 Remove the convenience-stapler power assembly (3 of 3) ........................................................	137
Figure 5-40 Remove the convenience-stapler ac inlet cable .........................................................................	138
Figure 5-41 Remove the convenience-stapler bracket and strap ..................................................................	139
Figure 5-42 Remove the speaker (1 of 2) ......................................................................................................	140
Figure 5-43 Remove the speaker (2 of 2) ......................................................................................................	141
Figure 5-44 Remove the power-switch PCA (HP LaserJet 3392 shown) ......................................................	142
Figure 5-45 Remove the formatter (1 of 3) .....................................................................................................	143
Figure 5-46 Remove the formatter (2 of 3) .....................................................................................................	144
Figure 5-47 Remove the formatter (3 of 3) .....................................................................................................	145
Figure 5-48 Remove the duplex assembly (1 of 3) ........................................................................................	146
Figure 5-49 Remove the duplex assembly (2 of 3) ........................................................................................	146
Figure 5-50 Remove the duplex assembly (3 of 3) ........................................................................................	147
Figure 5-51 Remove the laser/scanner assembly ..........................................................................................	149
Figure 5-52 Remove the memory-tag-reader assembly (1 of 2) ....................................................................	150
Figure 5-53 Remove the memory-tag-reader assembly (2 of 2) ....................................................................	151
Figure 5-54 Remove the fan (1 of 2) ..............................................................................................................	152
Figure 5-55 Remove the fan (2 of 2) ..............................................................................................................	153
Figure 5-56 Remove the duplex-drive gears ..................................................................................................	154
Figure 5-57 Remove the duplex solenoid (1 of 2) ..........................................................................................	155
Figure 5-58 Remove the duplex solenoid (2 of 2) ..........................................................................................	156
Figure 5-59 Remove the fuser (1 of 11) .........................................................................................................	157
Figure 5-60 Remove the fuser (2 of 11) .........................................................................................................	158
Figure 5-61 Remove the fuser (3 of 11) .........................................................................................................	158
Figure 5-62 Remove the fuser (4 of 11) .........................................................................................................	159
Figure 5-63 Remove the fuser (5 of 11) .........................................................................................................	159
Figure 5-64 Remove the fuser (6 of 11) .........................................................................................................	160

ENWW

xvii

Figure 5-65 Remove the fuser (7 of 11) .........................................................................................................	160
Figure 5-66 Remove the fuser (8 of 11) .........................................................................................................	161
Figure 5-67 Remove the fuser (9 of 11) .........................................................................................................	161
Figure 5-68 Remove the fuser (10 of 11) .......................................................................................................	162
Figure 5-69 Remove the fuser (11 of 11) .......................................................................................................	162
Figure 5-70 Remove the interlock assembly (1 of 2) ......................................................................................	163
Figure 5-71 Remove the interlock assembly (2 of 2) ......................................................................................	163
Figure 5-72 Remove the ECU (1 of 8) ............................................................................................................	165
Figure 5-73 Remove the ECU (2 of 8) ............................................................................................................	165
Figure 5-74 Remove the ECU (3 of 8) ............................................................................................................	166
Figure 5-75 Remove the ECU (4 of 8) ............................................................................................................	166
Figure 5-76 Remove the ECU (5 of 8) ............................................................................................................	167
Figure 5-77 Remove the ECU (6 of 8) ............................................................................................................	167
Figure 5-78 Remove the ECU (7 of 8) ............................................................................................................	168
Figure 5-79 Remove the ECU (8 of 8) ............................................................................................................	168
Figure 5-80 Remove the main motor (1 of 2) .................................................................................................	169
Figure 5-81 Remove the main motor (2 of 2) .................................................................................................	170
Figure 5-82 Remove the transfer roller ..........................................................................................................	171
Figure 5-83 Remove the registration-roller assembly ....................................................................................	172
Figure 5-84 Remove the main gear assembly (1 of 3) ...................................................................................	173
Figure 5-85 Remove the main gear assembly (2 of 3) ...................................................................................	174
Figure 5-86 Remove the main gear assembly (3 of 3) ...................................................................................	174
Figure 5-87 Remove the tray 2 pickup solenoid (1 of 2) ................................................................................	175
Figure 5-88 Remove the tray 2 pickup solenoid (2 of 2) ................................................................................	175
Figure 6-1 Jams in the print-cartridge area (1 of 5) ........................................................................................	183
Figure 6-2 Jams in the print-cartridge area (2 of 5) ........................................................................................	184
Figure 6-3 Jams in the print-cartridge area (3 of 5) ........................................................................................	184
Figure 6-4 Jams in the print-cartridge area (4 of 5) ........................................................................................	185
Figure 6-5 Jams in the print-cartridge area (5 of 5) ........................................................................................	185
Figure 6-6 Jams in the trays (1 of 10) ............................................................................................................	186
Figure 6-7 Jams in the trays (2 of 10) ............................................................................................................	186
Figure 6-8 Jams in the trays (3 of 10) ............................................................................................................	187
Figure 6-9 Jams in the trays (4 of 10) ............................................................................................................	187
Figure 6-10 Jams in the trays (5 of 10) ..........................................................................................................	188
Figure 6-11 Jams in the trays (6 of 10) ..........................................................................................................	188
Figure 6-12 Jams in the trays (7 of 10) ..........................................................................................................	189
Figure 6-13 Jams in the trays (8 of 10) ..........................................................................................................	189
Figure 6-14 Jams in the trays (9 of 10) ..........................................................................................................	190
Figure 6-15 Jams in the trays (10 of 10) ........................................................................................................	190
Figure 6-16 Jams in the output bin .................................................................................................................	191
Figure 6-17 Jams in the straight-through output path (1 of 4) ........................................................................	192
Figure 6-18 Jams in the straight-through output path (2 of 4) ........................................................................	192
Figure 6-19 Jams in the straight-through output path (3 of 4) ........................................................................	193
Figure 6-20 Jams in the straight-through output path (4 of 4) ........................................................................	193
Figure 6-21 Jams in the duplex path (1 of 10) ...............................................................................................	194
Figure 6-22 Jams in the duplex path (2 of 10) ...............................................................................................	195
Figure 6-23 Jams in the duplex path (3 of 10) ...............................................................................................	195
Figure 6-24 Jams in the duplex path (4 of 10) ...............................................................................................	196
Figure 6-25 Jams in the duplex path (5 of 10) ...............................................................................................	196
Figure 6-26 Jams in the duplex path (6 of 10) ...............................................................................................	197

xviii

ENWW

Figure 6-27 Jams in the duplex path (7 of 10) ...............................................................................................		197
Figure 6-28 Jams in the duplex path (8 of 10) ...............................................................................................		198
Figure 6-29 Jams in the duplex path (9 of 10) ...............................................................................................		198
Figure 6-30 Jams in the duplex path (10 of 10) .............................................................................................		199
Figure 6-31 Jams in the ADF (1 of 10) ...........................................................................................................		199
Figure 6-32 Jams in the ADF (2 of 10) ...........................................................................................................		200
Figure 6-33 Jams in the ADF (3 of 10) ...........................................................................................................		200
Figure 6-34 Jams in the ADF (4 of 10) ...........................................................................................................		201
Figure 6-35 Jams in the ADF (5 of 10) ...........................................................................................................		201
Figure 6-36 Jams in the ADF (6 of 10) ...........................................................................................................		202
Figure 6-37 Jams in the ADF (7 of 10) ...........................................................................................................		202
Figure 6-38 Jams in the ADF (8 of 10) ...........................................................................................................		203
Figure 6-39 Jams in the ADF (9 of 10) ...........................................................................................................		203
Figure 6-40 Jams in the ADF (10 of 10) .........................................................................................................		204
Figure 6-41 Jams in the convenience stapler (1 of 5) ....................................................................................		204
Figure 6-42 Jams in the convenience stapler (2 of 5) ....................................................................................		205
Figure 6-43 Jams in the convenience stapler (3 of 5) ....................................................................................		205
Figure 6-44 Jams in the convenience stapler (4 of 5) ....................................................................................		206
Figure 6-45 Jams in the convenience stapler (5 of 5) ....................................................................................		206
Figure 6-46 Engine test switch .......................................................................................................................		245
Figure 6-47 Print-cartridge high-voltage connection points (right side) ..........................................................		248
Figure 6-48 Print-cartridge high-voltage connection points (left side) ............................................................		248
Figure 7-1	Interface connectors .....................................................................................................................	267
Figure 7-2	Formatter connectors ....................................................................................................................	268
Figure 7-3	LIU connectors ..............................................................................................................................	269
Figure 7-4	Solenoids ......................................................................................................................................	270
Figure 7-5 Switches and sensors ...................................................................................................................		271
Figure 7-6 Rollers and pads ...........................................................................................................................		272
Figure 7-7 PCAs (base unit) ...........................................................................................................................		273
Figure 7-8 Major components (base unit) ......................................................................................................		274
Figure 7-9 Scanner and ADF .........................................................................................................................		275
Figure 7-10 Circuit diagram (1 of 2) ...............................................................................................................		276
Figure 7-11 Circuit diagram (2 of 2) ...............................................................................................................		277
Figure 7-12 Scanner and ADF assemblies ....................................................................................................		280
Figure 7-13	Scanner assemblies ....................................................................................................................	282
Figure 7-14	ADF components ........................................................................................................................	284
Figure 7-15 Convenience stapler components (HP LJ 3392 only) .................................................................		286
Figure 7-16 Formatter, LIU, HP jewel, and nameplate ...................................................................................		288
Figure 7-17 External covers and panels ........................................................................................................		290
Figure 7-18 Internal components (1 of 4) .......................................................................................................		292
Figure 7-19 Internal components (2 of 4) .......................................................................................................		294
Figure 7-20 Internal components (3 of 4) .......................................................................................................		296
Figure 7-21 Internal components (4 of 4) .......................................................................................................		298
Figure 7-22	Engine-controller assembly .........................................................................................................	300
Figure 7-23	Main-drive assembly ...................................................................................................................	302
Figure 7-24	Duplexing-drive assembly ...........................................................................................................	304
Figure 7-25 Tray 2 cassette and tray 3 cassette/feeder .................................................................................		306
Figure 7-26	Duplexing assembly ....................................................................................................................	308
Figure 7-27	Fuser assembly ...........................................................................................................................	310

ENWW

xix

ENWW

1 Product information

●Quick access to all-in-one information

●All-in-one configurations

●All-in-one features

●Product walkaround

●Model and serial numbers

●Software description

●Software installation

●Software for Windows

●Software for Macintosh

●Uninstalling software

●Media specifications

ENWW

Quick access to all-in-one information

Use the following Web sites to find information about the all-in-one.

●HP LaserJet 3390 all-in-one: www.hp.com/support/lj3390

●HP LaserJet 3392 all-in-one: www.hp.com/support/lj3392

Table 1-1 All-in-one guides

Guide	Description

Getting started guide	Provides step-by-step instructions for installing and setting up the all-in-one.

User guide	Provides detailed information for using and troubleshooting the all-in-one. Available on the
	all-in-one CD or in Program Group if the software is installed on a computer.

HP ToolboxFX	To check the all-in-one status and settings and view troubleshooting information and online
	documentation, use the HP ToolboxFX. You must have performed a complete software
	installation in order to use the HP ToolboxFX. See the user guide for more information about
	software installation.

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 information

ENWW

All-in-one configurations

The all-in-one is available in the following configurations.

Figure 1-1 HP LaserJet 3390/3392 all-in-one

Table 1-2 All-in-one configurations

Model	Item

HP LaserJet 3390 all-in-one	● Prints letter-size pages at speeds up to 22 pages-per-
	minute (ppm) and A4-size pages at speeds up to 21 ppm
	● Includes PCL 5e and PCL 6 printer drivers and
	HP postscript level 3 emulation
	● Priority input slot (tray 1) for sheet-fed printing
	● The multipurpose tray (tray 2) holds up to 250-sheets of
	print media or 10 envelopes.
	● An optional 250-sheet input tray (tray 3) is available.
	● Automatic 2-sided (duplex) printing, receiving faxes, and
	copying
	● In accordance with ISO/IEC 19752, average yield for the
	standard black print cartridge is 2,500 pages.1
	● In accordance with ISO/IEC 19752, average yield for the
	high-capacity black print cartridge is 6,000 pages.1
	● Hi-Speed USB 2.0 port and a port for connecting to a
	10/100Base-T network
	● 64 MB RAM

ENWW	All-in-one configurations 3

Table 1-2 All-in-one configurations (continued)

Model	Item

	● Flatbed scanner and 50-page automatic document
	feeder (ADF)
	● One available dual inline memory module (DIMM) slot for
	memory expansion and additional font support (memory
	expandable to 128 MB)

HP LaserJet 3392 all-in-one	The HP LaserJet 3392 all-in-one has all of the features of the
	HP LaserJet 3390 all-in-one plus:
	● An additional 250-sheet input tray (tray 3)
	● A convenience stapler

1 Actual yield depends on specific use.

4 Chapter 1 Product information

ENWW

All-in-one features

Table 1-3 All-in-one features

Feature	Description

Print quality	● 1200 dots per inch (dpi) text and graphics with image REt 2400
	● Adjustable settings to optimize print quality
	● The HP UltraPrecise print cartridge has a finer toner formulation that provides sharper text
		and graphics.

Fax	Full-functionality fax capabilities with a V.34 fax; includes a phone book, fax polling, and delayed-
	fax features

Copy	Includes an ADF that accommodates faster, more efficient copy jobs with multiple-page
	documents.

Scan	● The HP LaserJet 3390/3392 all-in-one provides 1200 pixels per inch (ppi), 24-bit full color
		scanning from a letter/A4-size scanning glass.
	● The ADF accommodates faster, more efficient scan jobs with multiple-page documents

Staple	● The HP LaserJet 3392 all-in-one includes a convenience stapler for fast and convenient
		stapling of up to 20-sheets of 80-g/m2 (20-lb) media.
	● The large-capacity replacement staple cassette holds 1,500 staples.

Networking	●	TCP/IP
	●	LPD
	●	9100

Printer-driver features	The PCL 6 printer language provides fast printing performance, built-in intellifont and TrueType
	scaling technologies, and advanced imaging capabilities.

Automatic language-	The all-in-one automatically determines and switches to the appropriate printer language (such
switching	as PS or PCL 6) for the print job.

Interface connections	● Hi-Speed USB 2.0 port
	● 10/100 ethernet (RJ45) network port

Environmental features	●	PowerSave mode
	● ENERGY STAR® qualified
Economical printing	● N-up printing (printing more than one page on a sheet)
	● Two-sided printing using the automatic duplexer

ENWW	All-in-one features 5

Table 1-3 All-in-one features (continued)

Feature	Description

Supplies	● A supplies status page with a print cartridge gauge that shows the supply levels that remain
	(HP supplies only)
	● No-shake print cartridge design
	● Authentication for HP print cartridges
	● Enabled supplies-ordering capability

Accessibility	● The 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.

6 Chapter 1 Product information

ENWW

Product walkaround

HP LaserJet 3390/3392 all-in-one

5	6
4	7
3	8
2	9
1	10

Figure 1-2 Front view

1Tray 2

2Priority input slot (tray 1)

3Print-cartridge door

4Top (face-down) output bin

5Control panel

6Automatic document feeder (ADF)

7Flatbed scanner glass (under the scanner cover)

8Convenience stapler (HP LaserJet 3392 all-in-one only)

9Power switch

10Optional tray 3 (standard on the HP LaserJet 3392 all-in-one)

ENWW	Product walkaround 7

Figure 1-3 Back view

11Power connector

12Rear (face-up) output bin door (used for straight-through output path)

13DIMM door

14Interface ports

8 Chapter 1 Product information

ENWW

+ 338 hidden pages