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HP LaserJet 3052 Service Manual - Page 397

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door release, locating on HP LaserJet 3052/3055 all-inone 8 drum-rotation check 248 extending life of 72 HP fraud hotline 39 installing 32 non-HP 39 operations 79, 80 pages per 2, 3 part numbers 38, 283 recycling 39, 358 redistributing toner 223 removing 158 replacing 39 status, viewing with HP ToolboxFX 54 storing 38, 349 warranty 353 print density troubleshooting 225 voltage operations 78 print path feeding operations 80 PRINT period 68 print quality cleaning page, printing 47 copies and scans 232 HP ToolboxFX settings 59 repetitive defects 278 troubleshooting 223 types of problems 224 Print Settings tab, HP ToolboxFX 60 print-cartridge door part number 317, 331, 343 removing 169 print-quality test 101 printer block diagram, operations 74 ECU operations 75 ECU, replacing 185 formatter and LIU, replacing 178 front cover, removing 172 fuser cover, removing 170 fuser, replacing 192 image-formation system operations 79 internal components 320 laser/scanner assembly, replacing 189 main motor, replacing 190 operation sequence 68 paper-pickup assembly, replacing 194 part numbers 314 pickup roller, replacing 159 power supply, replacing 175 print-cartridge door, removing 169 rear cover, removing 170 replacing parts 156 scanner cushions, installing 162 scanner support-frame, removing 182 separation pad, replacing 157 side covers, removing 167 speaker assembly, replacing 174 transfer roller, replacing 165 tray, removing 163 wiring diagrams, HP LaserJet 3050 all-in-one 292 wiring diagrams, HP LaserJet 3052/3055 all-in-one 294 Printer Command Language (PCL) 73 printer drivers accessing 15 help, Windows 14 Linux and UNIX 13 ordering 282 selecting 14 specifications 4 supported 13 printer engine assembly, replacing 285 Printer Job Language (PJL) 73, 258 printer pickup roller operations 80 printer separation pad operations 80 printing feed problems 216 troubleshooting 224 priority input slot capacity 2, 3 feeding operations 80 feeding problems, troubleshooting 216 loading 36 locating on HP LaserJet 3050 all-in-one 5 locating on HP LaserJet 3052/3055 all-in-one 8 processor, formatter 70 product base block diagram, operations 74 ECU operations 75 ECU, replacing 185 formatter and LIU, replacing 178 front cover, removing 172 fuser cover, removing 170 fuser, replacing 192 image-formation system operations 79 internal components 320 laser/scanner assembly, replacing 189 main motor, replacing 190 operation sequence 68 paper-pickup assembly, replacing 194 part numbers 314 pickup roller, replacing 159 power supply, replacing 175 print-cartridge door, removing 169 rear cover, removing 170 replacing parts 156 scanner cushions, installing 162 scanner support-frame, removing 182 separation pad, replacing 157 side covers, removing 167 speaker assembly, replacing 174 transfer roller, replacing 165 tray, removing 163 wiring diagrams, HP LaserJet 3050 all-in-one 292 wiring diagrams, HP LaserJet 3052/3055 all-in-one 294 protocol trace report, fax 260, 270 ENWW Index 377

Section	Page
Product information	21
All-in-one configurations	22
HP LaserJet 3050 all-in-one	22
HP LaserJet 3052/3055 all-in-one	23
All-in-one features	24
All-in-one parts	25
HP LaserJet 3050 all-in-one parts	25
Front view	25
Back view	26
Interface ports	26
Control panel	27
HP LaserJet 3052/3055 all-in-one parts	28
Front view	28
Back view	29
Interface ports	29
Control panel	30
Model and serial numbers	31
Software installation	32
Typical installation	32
Minimum installation	32
Printer drivers	33
Supported printer drivers	33
Additional drivers	33
Select the correct printer driver	34
Printer-driver Help (Windows)	34
Gaining access to the printer drivers	35
What other software is available?	35
Software for Windows	36
Software components for Windows	36
HP ToolboxFX	36
Embedded Web server (EWS)	36
Using Add or Remove Programs to uninstall	36
Software for Macintosh	38
HP Director	38
Macintosh Configure Device (Mac OS X V10.3 and Mac OS X V10.4)	38
PDEs (Mac OS X V10.3 and Mac OS X V10.4)	39
Installing software for Macintosh	39
Installing Macintosh printing system software for direct connections (USB)	39
Installing Macintosh printing system software for networks	40
To remove software from Macintosh operating systems	40
Choosing paper and other print media	41
Supported media weights and sizes	41
Media to avoid	43
Media that can damage the all-in-one	43
Operation	45
Site preparation	46
Prepare the location	46
Operating environment	46
Minimum system requirements	47
Unpacking	48
Contents of the HP LaserJet 3050 all-in-one box	48
Contents of the HP LaserJet 3052/3055 all-in-one box	49
Installing input devices	50
Installing the print cartridge	52
Loading media into the input trays	54
Loading documents to fax, copy, or scan	54
Loading input trays	56
Priority input slot	56
250-sheet input tray (tray 1)	56
Maintenance	57
Managing supplies	58
Life expectancies of print cartridges and parts that wear	58
Ordering supplies	58
Storing print cartridges	58
Replacing and recycling supplies	59
Changing the print cartridge	59
Changing the ADF pickup roller and load-arm assembly (HP LaserJet 3052/3055 all-in-one)	59
HP policy on non-HP supplies	59
HP fraud hotline	59
Cleaning the all-in-one	60
To clean the exterior	60
To clean the ADF scanner glass and white platen (HP LaserJet 3050 all-in-one)	60
To clean the flatbed glass and the ADF scanner glass (HP LaserJet 3052/3055 all-in-one)	62
To clean the lid backing (HP LaserJet 3052/3055 all-in-one)	63
To clean the ADF pickup-roller assembly (HP LaserJet 3052/3055 all-in-one)	64
Cleaning the paper path	67
To clean the paper path from HP ToolboxFX	67
To clean the paper path from the all-in-one control panel	68
Calibrating the scanner	69
Managing and maintaining the all-in-one	70
Information pages	70
Demo page	70
Usage page	70
Configuration page	71
Network configuration page	72
Fax logs and reports	72
HP ToolboxFX	73
To view HP ToolboxFX	73
Status	74
Event log	74
Fax	75
Fax tasks	75
Fax phone book	75
Fax Send Log	77
Fax Receive Log	77
Help	77
System settings	78
Device information	78
Paper handling	78
Print quality	79
Paper types	79
System setup	79
Service	79
Device polling	80
Print settings	80
Printing	80
PCL5e	80
PostScript	80
Network settings	80
Macintosh Configure Device (Mac OS X V10.3 and Mac OS X V10.4)	81
Embedded Web server	82
Features	82
Theory of operation	83
Basic operation	84
Sequence of operation	85
Sequence of operation, HP LaserJet 3050 all-in-one scanner	85
Sequence of operation, HP LaserJet 3052/3055 all-in-one scanner	86
Sequence of operation, HP LaserJet 3050/3052/3055 all-in-one printer (product base)	88
HP LaserJet 3050/3052/3055 all-in-one timing diagram—printer (product base)	89
Formatter system	90
Central processing unit	90
Line interface unit (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only)	90
Standard startup process	91
All-in-one startup messages	91
RAM	91
USB interface	91
Control panel	92
Economode	92
MEt	92
Enhanced I/O	92
PJL overview	93
Printer (product base) functions	94
Engine control system (engine control unit and power-supply assembly)	95
Print-engine control system	95
Printer (product base) laser/scanner	96
Power system on the power-supply assembly	97
Ac power distribution	97
Dc power distribution	97
Overcurrent/overvoltage	97
High-voltage power distribution	98
Image-formation system	99
The seven image-formation processes	99
Print cartridge	100
Printer (product base) paper-feed system	100
Jam detection in the all-in-one	102
Conditions of jam detection	102
HP LaserJet 3050 all-in-one unique components	103
Basic operation	103
ADF pickup-and-feed system	105
Optical scanning system	107
HP LaserJet 3052/3055 all-in-one unique components	109
Scanner and ADF functions and operation	109
Scanner functions	109
Scanner operation	110
ADF operation	110
ADF paper path and ADF sensors	111
ADF jam detection	111
Fax functions and operation (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only)	112
Computer and network security features	112
PSTN operation	112
Distinctive ring function	113
Faxing with Voice over IP services	114
The fax subsystem	114
Formatter in the fax subsystem	114
LIU in the fax subsystem	115
Safety isolation	115
Safety-protection circuitry	115
Data path	116
Hook state	116
Downstream current detection	116
Hook switch control	117
Ring detect	117
Line-current control	117
Billing- (metering-) tone filters	117
Fax page storage in flash memory	118
Stored fax pages	118
Advantages of flash-memory storage	118
Removal and replacement	119
Removal and replacement strategy	120
Electrostatic discharge	120
Required tools	121
Before performing service	121
After performing service	121
Post-service tests	121
Test 1 (print-quality test)	121
Test 2 (copy-quality test)	122
Test 3 (fax-quality test)	122
Parts removal order	123
HP LaserJet 3050 all-in-one	126
Link assemblies and scanner support-frame springs	127
Scanner side covers	129
Separation-pad set	131
Control-panel bezel	132
Control-panel assembly	134
Media lever and media-lever torsion spring	135
Separation-pad assembly	136
Scanner assembly	138
Scanner assembly top cover	146
Top-cover assembly	149
Pickup roller	150
White platen	151
HP LaserJet 3052/3055 all-in-one	152
ADF input tray	152
Flatbed lid	153
Link assemblies and scanner support-frame springs	156
Control-panel bezel	158
Control-panel assembly	159
ADF separation pad	161
ADF input-tray flag	162
ADF pickup roller and load-arm assembly (HP LaserJet 3052/3055 all-in-one)	163
ADF scanner glass	166
Scanner assembly	168
Printer (product base)	176
Printer separation pad	177
Print cartridge	178
Printer pickup roller	179
Installing the scanner cushions	182
Media input tray	183
Transfer roller	185
Side covers	187
Print-cartridge door	189
Rear cover and fuser cover	190
Front cover	192
Speaker assembly	194
Power supply	195
Formatter and line interface unit (LIU)	198
Scanner support-frame	202
Engine controller unit (ECU)	205
Laser/scanner assembly	209
Main motor	210
Fuser	212
Paper-pickup assembly	214
Troubleshooting	215
Troubleshooting process	216
Troubleshooting checklist	216
Control-panel messages	219
Alert and warning messages	219
Alert and warning message tables	219
Critical error messages	225
Critical error message-tables	225
Event-log codes	229
Jams	231
Causes of jams	231
Tips to avoid jams	231
Where to look for jams	232
Print cartridge area	232
Input trays	234
Output bin	235
Solving print paper-feed problems	236
Paper-feed solutions, printing	236
Jams occur in the automatic document feeder (ADF)	238
Solving ADF paper-feed problems	241
Paper-feed solutions, scanning/copying	241
Print image-quality problems	243
Checking the print cartridge	243
To redistribute the toner in the print cartridge	243
Solving print image-quality problems	244
Print image-quality solutions	244
Scan/copy image-quality problems	252
Scan/copy image-quality solutions	252
ADF problems	259
Fax troubleshooting (HP LaserJet 3050/3055 all-in-one)	260
General fax troubleshooting	260
Fax receive troubleshooting	262
Fax send troubleshooting	264
DSL problems	265
PABX line problems	265
Control-panel-display problems	266
Functional checks	267
Control-panel test	267
Half self-test functional check	267
To perform a half self-test check	268
To perform other checks	268
Drum-rotation functional check	268
High-voltage contacts check	269
To check the print-cartridge contacts	269
To check the high-voltage connector pins	270
Service-mode functions	271
Secondary service menu	271
To gain access to the secondary service menu	271
To print a list of all the fax data-store parameters	271
Developer’s menu	272
To gain access to the developer’s menu	273
To adjust fax data-store parameters	273
To scroll quickly to a particular data-store parameter	273
Changing the country/region code parameters	274
To change the country/region from one location to another	274
To set the language and location if none is set	274
Soft reset	275
Performing a soft reset	275
Super NVRAM init	275
To perform a super NVRAM init	275
NVRAM init	276
To perform an NVRAM init	276
System settings for localized products	277
Printer job language (PJL) software commands	278
Troubleshooting tools	279
Printing a configuration report, demonstration page, or menu structure	279
Printing all fax reports at once (HP LaserJet 3050/3055 all-in-one)	279
T.30 protocol trace (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only)	280
To print a T.30 protocol trace report	280
Fax error-correction mode (ECM) (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only)	280
V.34 fax standard	281
Fax receive and fax send codes	281
Translating the fax trace report (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only)	290
Repetitive image defect ruler	298
Firmware updates and recovery	299
Parts and diagrams	301
Ordering parts and supplies	302
Parts that wear	302
Parts	302
World-wide customer support	302
Accessories	303
Documentation	304
Common hardware	305
How to use the parts lists and diagrams	305
Replacing the printer engine assembly	305
Diagrams	308
Component locations, HP LaserJet 3050/3052/3055 all-in-one printer (product base)	308
Main wiring	311
Formatter PCA and LIU connectors	315
HP LaserJet 3050 all-in-one scanner assembly	318
ADF components, HP LaserJet 3050 all-in-one	320
Guide assembly, HP LaserJet 3050 all-in-one	324
HP LaserJet 3052/3055 all-in-one scanner assembly	326
Major assemblies, HP LaserJet 3052/3055 all-in-one	328
Scanner components, HP LaserJet 3052/3055 all-in-one	330
Printer (product base), HP LaserJet 3050/3052/3055 all-in-one	334
External covers, printer (product base)	336
Formatter and LIU	338
Internal components, printer (product base)	340
Alphabetical parts list	346
Numerical parts list	356
All-in-one specifications	367
Physical specifications	368
Electrical specifications	368
Power consumption	369
Environmental specifications	369
Acoustic emissions	370
Service and support	371
Hewlett-Packard limited warranty statement	372
Print Cartridge Limited Warranty Statement	373
Extended warranty	373
Regulatory information	375
FCC compliance	376
Environmental Product Stewardship program	377
Protecting the environment	377
Ozone production	377
Power consumption	377
Toner consumption	377
Paper use	377
Plastics	377
HP LaserJet printing supplies	378
HP Printing Supplies Returns and Recycling Program Information	378
U.S. returns	378
Non-U.S. returns	378
Paper	378
Material restrictions	379
Nederlands	379
Taiwan	380
Disposal of waste equipment by users in private household in the European Union	380
Material safety data sheet	380
For more information	380
Telephone Consumer Protection Act (United States)	382
IC CS-03 requirements	382
EU statement for telecom operation	383
New Zealand telecom statements	383
Declaration of conformity (HP LaserJet 3390, 3392, 3055, and 3050)	384
Declaration of conformity (HP LaserJet 3052)	385
Country-/region-specific safety statements	386
Laser safety statement	386
Canadian DOC statement	386
Korean EMI statement	386
Finnish laser statement	387

Match case Limit results 1 per page

door release, locating on

HP LaserJet 3052/3055 all-in-

one

drum-rotation check

248

extending life of

HP fraud hotline

installing

non-HP

operations

79, 80

pages per

2, 3

part numbers

38, 283

recycling

39, 358

redistributing toner

223

removing

158

replacing

status, viewing with

HP ToolboxFX

storing

38, 349

warranty

353

print density

troubleshooting

225

voltage operations

print path

feeding operations

PRINT period

print quality

cleaning page, printing

copies and scans

232

HP ToolboxFX settings

repetitive defects

278

troubleshooting

223

types of problems

224

Print Settings tab, HP ToolboxFX

print-cartridge door

part number

317, 331, 343

removing

169

print-quality test

101

printer

block diagram, operations

ECU operations

ECU, replacing

185

formatter and LIU, replacing

178

front cover, removing

172

fuser cover, removing

170

fuser, replacing

192

image-formation system

operations

internal components

320

laser/scanner assembly,

replacing

189

main motor, replacing

190

operation sequence

paper-pickup assembly,

replacing

194

part numbers

314

pickup roller, replacing

159

power supply, replacing

175

print-cartridge door, removing

169

rear cover, removing

170

replacing parts

156

scanner cushions, installing

162

scanner support-frame,

removing

182

separation pad, replacing

157

side covers, removing

167

speaker assembly, replacing

174

transfer roller, replacing

165

tray, removing

163

wiring diagrams, HP LaserJet

3050 all-in-one

292

wiring diagrams, HP LaserJet

3052/3055 all-in-one

294

Printer Command Language (PCL)

printer drivers

accessing

help, Windows

Linux and UNIX

ordering

282

selecting

specifications

supported

printer engine assembly, replacing

285

Printer Job Language (PJL)

73,

258

printer pickup roller

operations

printer separation pad

operations

printing

feed problems

216

troubleshooting

224

priority input slot

capacity

2, 3

feeding operations

feeding problems,

troubleshooting

216

locating on HP LaserJet 3050

all-in-one

locating on HP LaserJet

3052/3055 all-in-one

processor, formatter

product base

block diagram, operations

ECU operations

ECU, replacing

185

formatter and LIU, replacing

178

front cover, removing

172

fuser cover, removing

170

fuser, replacing

192

image-formation system

operations

internal components

320

laser/scanner assembly,

replacing

189

main motor, replacing

190

operation sequence

paper-pickup assembly,

replacing

194

part numbers

314

pickup roller, replacing

159

power supply, replacing

175

print-cartridge door, removing

169

rear cover, removing

170

replacing parts

156

scanner cushions, installing

162

scanner support-frame,

removing

182

separation pad, replacing

157

side covers, removing

167

speaker assembly, replacing

174

transfer roller, replacing

165

tray, removing

163

wiring diagrams, HP LaserJet

3050 all-in-one

292

wiring diagrams, HP LaserJet

3052/3055 all-in-one

294

protocol trace report, fax

260,

270

ENWW

Index

377