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HP 3390 Service Manual - Page 259

The sheet begins to feed from the ADF input tray but does not move through the ADF completely. The sheet, be pushed through the ADF by hand., Cause, Solution

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The sheet begins to feed from the ADF input tray but does not move through the ADF completely. The sheet cannot be pushed through the ADF by hand. Cause Solution The ADF pickup-roller assembly is damaged or is not functioning. Replace the ADF pickup-roller assembly. See Replacing the ADF pickup-roller assembly on page 50. ENWW ADF problems 237

Section	Page
All-in-one information	23
Quick access to all-in-one information	24
All-in-one configurations	25
All-in-one features	27
Walkaround	29
HP LaserJet 3390/3392 all-in-one	29
Interface ports	31
Control panel	31
Model and serial numbers	32
Software description	33
Supported drivers	33
Additional drivers	33
Software for Windows	34
Windows software components	34
HP ToolboxFX	34
Embedded Web server (EWS)	34
Software for Macintosh	35
Macintosh software components	35
HP Director	35
Macintosh Configure Device (Mac OS X V10.3 and Mac OS X V10.4)	35
PDEs (Mac OS X V10.3 and Mac OS X V10.4)	36
Uninstalling software	37
Windows	37
Macintosh	37
Media specifications	38
Supported media weights and sizes	38
Media to avoid	39
Media that can damage the all-in-one	40
Installation	41
Operating environment	42
Minimum system requirements	43
Unpacking	44
Installing input devices	45
ADF input tray	45
250-sheet input tray (tray 3)	45
Installing the control-panel faceplate	47
Loading media	48
Loading documents onto the flatbed scanner or into the ADF	48
Loading the single-sheet priority input slot (tray 1)	50
Loading tray 2 or optional tray 3	50
Installing accessories	52
Removing and replacing a DIMM	52
Maintenance	55
Managing supplies	56
Life expectancies of supplies and the all-in-one	56
Ordering supplies	56
Storing supplies	56
Replacing and recycling supplies	57
Replacing the print cartridge	59
Replacing the staple cassette	62
Replacing the tray 2 pickup roller	64
Replacing the tray 2 and optional tray 3 separation pad	69
Replacing the ADF pickup-roller assembly	72
HP policy on non-HP supplies	76
Resetting the all-in-one for non-HP supplies	76
HP fraud hotline	76
Cleaning the all-in-one	78
Cleaning the flatbed scanner glass	78
Cleaning the scanner-cover backing	79
Cleaning the tray 2 pickup roller	80
Cleaning the ADF pickup-roller assembly	84
Cleaning the print path	87
Managing the all-in-one	89
Information pages	89
Using the HP ToolboxFX	92
To view the HP ToolboxFX	92
Status	92
Event log	93
Alerts	93
Set up status alerts	93
Set up e-mail alerts	93
Fax	94
Fax tasks	94
Fax phone book	94
Fax send log	97
Fax receive log	97
Help (Documentation)	97
System settings	98
Device information	98
Paper handling	99
Print quality	99
Paper types	99
System setup	100
Service	100
Device Polling	100
Print settings	100
Printing	100
PCL 5e	101
PostScript	101
Network settings	101
Using Macintosh Configure Device (Mac OS X V10.3 and Mac OS X V10.4)	102
Understanding the Embedded Web server	103
Features	103
Theory of operation	105
Basic operation	106
Sequence of operation for the base unit	106
Internal components (base unit)	108
Engine control system	110
Laser/scanner system	112
Pickup/feed/delivery system	113
Image-formation system	115
Scanner and ADF functions and operation	119
Scanner functions	119
Scanner operation	119
ADF operation	120
ADF paper path and ADF sensors	120
ADF jam detection	121
Fax functions and operation	122
PSTN operation	122
To receive faxes when you hear fax tones	122
Distinctive ring function	122
The fax subsystem	123
Formatter in the fax subsystem	123
LIU in the fax subsystem	123
Safety isolation	124
Safety-protection circuitry	124
Data path	124
Hook state	125
Downstream current detection	125
Hook switch control	125
Ring detect	125
Line current control	125
Billing (metering) tone filters	126
Fax page storage in flash memory	126
Stored fax pages	126
Advantages of flash memory storage	126
Removal and replacement	129
Introduction	130
Removal and replacement strategy	130
Electrostatic discharge	130
User-replaceable parts	131
Required tools	131
Before performing service	131
After performing service	131
Post-service tests	132
Test 1 (print-quality test)	132
Test 2 (copy-quality test)	132
Test 3 (fax-quality test)	133
Parts-removal order	134
Remove the print cartridge	135
External panels, covers, and doors	136
Right cover	136
Left cover	138
Print-cartridge door	140
Rear cover	142
Top cover	144
ADF assembly	146
Scanner assembly	148
Bezel and control panel	150
Internal assemblies	153
Convenience-stapler assembly (HP LaserJet 3392 only)	153
Convenience-stapler power supply (HP LaserJet 3392 only)	154
Convenience-stapler ac inlet cable (HP LaserJet 3392 only)	156
Convenience-stapler power supply bracket and strap (HP LaserJet 3392 only)	157
Speaker	158
Power-switch PCA	160
Formatter	161
Duplex assembly	164
Laser/scanner	166
Memory-tag-reader assembly	168
Fuser	170
Fan	170
Duplex-drive gears	172
Duplex solenoid	173
Fuser	175
Interlock assembly	181
ECU	182
Main motor	187
Pickup-and-feed assemblies	189
Transfer roller	189
Registration-roller assembly	190
Main gear assembly and tray 2 pickup solenoid	191
Troubleshooting	195
Troubleshooting process	196
Troubleshooting checklist	196
Jams	199
Causes of jams	199
Tips to avoid jams	199
Where to look for jams	200
Jams in the print-cartridge area	201
Jams in the trays	203
Jams in the output bin	209
Jams in the straight-through output path	210
Jams in the duplex path	212
Jams in the ADF	217
Jams in the convenience stapler (HP LaserJet 3392 only)	222
Control-panel messages	225
Alert and warning messages	225
Alert and warning message tables	225
Critical-error message-tables	231
Print problems	233
Print-quality problems	233
Improving print quality	233
Understanding print-quality settings	233
To temporarily change print-quality settings	233
To change print-quality settings for all future jobs	233
Identifying and correcting print defects	234
Print-quality checklist	234
General print-quality issues	234
Media-handling problems	239
Print-media guidelines	239
Solving print-media problems	239
Performance problems	240
Fax problems	242
Problems receiving faxes	242
Problems sending faxes	244
Voice-call problems	245
Media-handling problems	246
Performance problems	247
Copy problems	248
Preventing problems	248
Image problems	248
Media-handling problems	249
Performance problems	251
Scan problems	252
Solving scanned-image problems	252
Scan-quality problems	254
Preventing problems	254
Solving scan-quality problems	254
Scan-specific error messages	255
Control-panel display problems	256
Convenience-stapler problems (HP LaserJet 3392 only)	256
DSL problems	257
PABX line problems	257
ADF problems	258
Functional checks	260
Drum rotation test	260
Engine test	260
Half self-test functional check	261
To perform a half self-test check	261
To perform other checks	262
Heating element check	262
High-voltage contacts check	262
To check the print-cartridge contacts	262
To check the high-voltage connector assembly	263
Service-mode functions	264
NVRAM initialization	264
Secondary service menu	264
Troubleshooting tools	266
All-in-one pages and reports	266
Demo page	266
Configuration page	266
Supplies Status page	266
Fax reports	267
Fax activity log	267
Fax call report	267
Phone book report	267
Billing-code report	268
HP ToolboxFX	268
To view HP ToolboxFX	268
Troubleshooting tab	268
Service menu	269
Restoring the factory-set defaults	269
Cleaning the paper path	269
T.30 protocol trace	270
Archive print	270
Firmware updates and recovery	271
Firmware update by using a flash executable file	271
Firmware-recovery DIMM	271
Parts	273
Accessories and ordering information	275
Supplies	276
Memory	276
Cable and interface accessories	276
Paper-handling accessories	277
Scanner/ADF replacement parts	278
Control-panel bezels	279
Supplementary documentation and support	280
Troubleshooting diagrams	283
Repetitive image defects	283
Interface connectors	284
Formatter connectors	285
Line interface unit (LIU)	286
Solenoids	286
Switches and sensors	287
Rollers and pads	288
PCAs (base unit)	289
Major components (base unit)	290
Scanner and ADF	291
Circuit diagram	292
How to use the parts lists and diagrams	293
Types of screws	293
Scanner and ADF assemblies	294
Scanner components	296
ADF components	298
Convenience stapler components (HP LJ 3392 only)	300
Formatter, LIU, HP jewel, and nameplate	302
External covers and panels	304
Internal components (1 of 4)	306
Internal components (2 of 4)	308
Internal components (3 of 4)	310
Internal components (4 of 4)	312
Engine-controller assembly	314
Main-drive assembly	316
Duplexing-drive assembly	318
Tray 2 cassette and tray 3 cassette/feeder	320
Duplexing assembly	322
Fuser assembly	324
Alphabetical parts list	326
Numerical parts list	331
All-in-one specifications	337
Physical specifications	338
Supplies specifications	339
Performance	340
Electrical specifications	342
Power consumption	343
Environmental specifications	344
Acoustic emissions	345
Warranty information	347
Hewlett-Packard limited warranty statement	348
Print Cartridge Limited Warranty Statement	349
Extended warranty	350
Regulatory statements	351
Declaration of conformity (HP LaserJet 3390, 3392, 3055, and 3050)	352
Country/region-specific safety statements	353
Laser safety statement	353
Canadian DOC statement	353
Korean EMI statement	353
Finnish laser statement	354
Japan power cord statement	354