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Sequence of operation, HP LaserJet 3052/3055 all-in-one scanner, Theory of operation - and can t scan and windows 7

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Sequence of operation, HP LaserJet 3052/3055 all-in-one scanner Table 4-2 HP LaserJet 3052/3055 all-in-one basic sequence of operation Period Purpose Remarks WAIT. After the all-in-one is turned on until the message Scanner Bulb warming up appears on the controlpanel display. To perform the firmware initialization. Tests RAM and establishes communication with the control panel. AMBIENT LIGHT DETECT. From the end of the WAIT period until the scanner bulb is turned on. To determine the level of ambient light in the environment. The scanner makes a short move toward the ADF. If ambient light is too bright, the scanner moves away from the ADF until it is under the bezel (in shadow). At the end of this period, the scanner bulb is turned on. INITIAL WARMUP. From the end of the To warm up the scanner bulb. AMBIENT LIGHT DETECT period until the scanner begins moving. The length of this period varies depending on age and environmental conditions of the all-in-one. However, this period will timeout (end) if the scanner bulb does not warm up within 2 minutes, and an error message appears on the control panel. HOME FIND. From the end of INITIAL WARMUP until the Ready message appears on the control-panel display. To position the scanner at the home position under the bezel at the document-origin end of the flatbed, and to perform the final lamp warmup checks. The scanner performs several back-andforth movements during this period. The scanner finds its home position by scanning, not by using any sort of sensor. READY. From the end of HOME FIND until the STANDBY period. To keep the all-in-one ready to print, scan, copy, or fax with no scanner warmup delay. The scanner remains in the READY state for 10 minutes following HOME FIND or following the last scanner usage. STANDBY. Occurs 10 minutes after the start of the READY period, or 10 minutes after the last scanner usage (copy/scan/ fax). To reduce power consumption and increase scanner bulb life. The scanner performs a HOME FIND before going into standby. POWERSAVE. Occurs a minimum of 2 hours and a maximum of 12 hours (user configurable) after the start of the READY period, or after the last scanner usage. To reduce power consumption and increase scanner-bulb life beyond what can be achieved with STANDBY. A workday modeling algorithm governs the actual powersave behavior. CALIBRATION. From the time the copy/ To compensate for variability in the scan/fax button is pressed until the scanning system. STAGE period. Calibration is performed by moving the scanner back-and-forth several times near the home position. If the previous period was STANDBY or POWERSAVE, a short delay occurs. The message Scanner Bulb warming up appears on the control-panel display during this delay. STAGE. From the end of CALIBRATION until the SCAN period. For an ADF scan: to position the scanner under the ADF scanning window, and then to position the original document's leading edge at the scanning position. For a flatbed scan: to position the scanner at the document-origin position before scanning the original. For an ADF scan, the page feeds partway into the scanner, then stops briefly. For a flatbed scan, the STAGE period is built-in to the SCAN period, so STAGE is not visible externally. 66 Chapter 4 Theory of operation ENWW

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

Sequence of operation, HP LaserJet 3052/3055 all-in-one scanner

Table 4-2

HP LaserJet 3052/3055 all-in-one basic sequence of operation

Period

Purpose

Remarks

WAIT. After the all-in-one is turned on

until the message

Scanner Bulb

warming up

appears on the control-

panel display.

To perform the firmware initialization.

Tests RAM and establishes

communication with the control panel.

AMBIENT LIGHT DETECT. From the

end of the WAIT period until the scanner

bulb is turned on.

To determine the level of ambient light in

the environment.

The scanner makes a short move toward

the ADF. If ambient light is too bright, the

scanner moves away from the ADF until

it is under the bezel (in shadow). At the

end of this period, the scanner bulb is

turned on.

INITIAL WARMUP. From the end of the

AMBIENT LIGHT DETECT period until

the scanner begins moving.

To warm up the scanner bulb.

The length of this period varies

depending on age and environmental

conditions of the all-in-one. However,

this period will timeout (end) if the

scanner bulb does not warm up within 2

minutes, and an error message appears

on the control panel.

HOME FIND. From the end of INITIAL

WARMUP until the

Ready

message

appears on the control-panel display.

To position the scanner at the home

position under the bezel at the

document-origin end of the flatbed, and

to perform the final lamp warmup checks.

The scanner performs several back-and-

forth movements during this period. The

scanner finds its home position by

scanning, not by using any sort of

sensor.

READY. From the end of HOME FIND

until the STANDBY period.

To keep the all-in-one ready to print,

scan, copy, or fax with no scanner

warmup delay.

The scanner remains in the READY state

for 10 minutes following HOME FIND or

following the last scanner usage.

STANDBY. Occurs 10 minutes after the

start of the READY period, or 10 minutes

after the last scanner usage (copy/scan/

fax).

To reduce power consumption and

increase scanner bulb life.

The scanner performs a HOME FIND

before going into standby.

POWERSAVE. Occurs a minimum of 2

hours and a maximum of 12 hours (user

configurable) after the start of the

READY period, or after the last scanner

usage.

To reduce power consumption and

increase scanner-bulb life beyond what

can be achieved with STANDBY.

A workday modeling algorithm governs

the actual powersave behavior.

CALIBRATION. From the time the copy/

scan/fax button is pressed until the

STAGE period.

To compensate for variability in the

scanning system.

Calibration is performed by moving the

scanner back-and-forth several times

near the home position. If the previous

period was STANDBY or POWERSAVE,

a short delay occurs. The message

Scanner Bulb warming up

appears on

the control-panel display during this

delay.

STAGE. From the end of CALIBRATION

until the SCAN period.

For an ADF scan: to position the scanner

under the ADF scanning window, and

then to position the original document's

leading edge at the scanning position.

For a flatbed scan: to position the

scanner at the document-origin position

before scanning the original.

For an ADF scan, the page feeds

partway into the scanner, then stops

briefly.

For a flatbed scan, the STAGE period is

built-in to the SCAN period, so STAGE is

not visible externally.

Chapter 4

Theory of operation

ENWW