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HP LaserJet P2050 Service Manual - Page 134

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5. Carefully separate the rear cover and rear door from the product, and then remove them. NOTE: For the HP LaserJet P2050 Series, the duplex-paper-feed assembly is removed with the cover and door Reinstallation tip When you reinstall the rear cover assembly, open the rear door to make sure that the rear cover fits even against the product chassis before you install the mounting screws. Figure 6-36 Remove the rear cover, rear door, and duplex-paper-feed assembly (4 of 6; HP LaserJet P2030 Series) Figure 6-37 Remove the rear cover, rear door, and duplex-paper-feed assembly (5 of 6; HP LaserJet P2050 Series) 122 Chapter 6 Removal and replacement ENWW

Section	Page
Product basics	13
Product comparison	14
HP LaserJet P2050 Series Printers	14
HP LaserJet P2030 Series Printers	15
Product features	16
HP LaserJet P2050 Series Printers	16
HP LaserJet P2030 Series Printers	17
Product walkaround	18
HP LaserJet P2050 Series Printers	18
Front view	18
Rear view	19
Interface ports	20
Model and serial number label	20
HP LaserJet P2030 Series Printers	21
Front view	21
Rear view	22
Interface ports	23
Model and serial-number label location	24
Supported product software	25
Software included with the product	25
Software installation types for Windows	25
Macintosh software	25
Supported printer drivers for Windows (HP LaserJet P2050 Series Printers)	25
Supported printer drivers for Windows (HP LaserJet P2030 Series Printers)	25
Supported printer drivers for Macintosh (HP LaserJet P2050 Series Printers only)	25
Supported printer drivers for Macintosh (HP LaserJet P2030 Series Printers only)	26
Other software provided	26
Software for Windows	26
HP ToolboxFX (HP LaserJet P2050 Series Printers only)	26
Status Alerts software (HP LaserJet P2030 Series Printers only)	26
Software for networks	26
HP Web Jetadmin	26
Embedded Web server (HP LaserJet P2055dn, HP LaserJet P2055x, and HP LaserJet P2035n printers only).	26
Software for other operating systems	27
System minimum requirements	28
Windows requirements	28
Macintosh requirements	28
Connectivity	29
Supported networks (HP LaserJet P2050 Series Printers)	29
Supported network (HP LaserJet P2030 Series Printers)	30
Control panel	33
Control panel (HP LaserJet P2050 Series Printers only)	34
Control-panel layout	34
Use the control-panel menus	35
Use the menus	35
Reports menu	36
System setup menu	37
Service menu	39
Network config. menu (HP LaserJet P2055dn and HP LaserJet P2055x only)	40
Control panel (HP LaserJet P2030 Series Printers only)	42
Paper and print media	43
Supported paper and print media	44
Paper for the HP LaserJet P2050 Series Printers	44
Supported paper and print media sizes	44
Supported paper and print media types	45
Tray and bin capacity	46
Paper for the HP LaserJet P2030 Series Printers	46
Supported paper and print media sizes	46
Supported paper and print media types	48
Tray and bin capacity	49
Load paper and print media	50
Load trays	50
Paper orientation for loading trays	50
Tray 1	51
Tray 2	52
Load A6-size paper	52
Optional Tray 3 (HP LaserJet P2050 Series Printers only)	53
Load A6-size paper	53
Manual feed	54
Configure trays	55
Configure trays (HP LaserJet P2050 Series Printers only)	55
Configure trays (HP LaserJet P2030 Series Printers only)	55
Use paper output options	56
Print to the top (standard) output bin	56
Print to the straight-through paper path (rear output)	57
Manage and maintain	59
Print the information pages	60
Print the information pages (HP LaserJet P2050 Series Printers only)	60
Print the information pages (HP LaserJet P2030 Series Printers only)	60
Demo page	60
Configuration page	61
Supplies Status page	61
Use the HP ToolboxFX software (HP LaserJet P2050 Series Printers only)	62
View HP ToolboxFX	62
Status	63
Event log	63
Alerts	64
Set up Status Alerts	64
Set up E-mail Alerts	64
Help	64
Device Settings	65
Device Information	65
Paper Handling	66
Printing	66
PCL6	66
PCL5c	66
PostScript	66
Print quality	66
Paper Types	67
System Setup	67
Troubleshooting	67
Network Settings	67
Shop for Supplies	67
Other Links	67
Manage a network product	69
Embedded Web server (HP LaserJet P2055dn, HP LaserJet P2055x, and HP LaserJet P2035n only)	69
Open the embedded Web server	69
Status tab	69
Settings tab	70
Networking tab	70
Links	70
Use HP Web Jetadmin software	70
Use security features	70
Secure the embedded Web server	70
Manage supplies	71
Supplies life	71
Manage the print cartridge	71
Print-cartridge storage	71
Use genuine HP print cartridges	71
HP policy on non-HP print cartridges	71
Print-cartridge authentication	71
HP fraud hotline and Web site	71
Replace supplies and parts	73
Supply replacement guidelines	73
Redistribute toner	73
Change the print cartridge	74
Install memory (HP LaserJet P2050 Series Printers only)	76
Install product memory	76
Check DIMM installation	79
Save resources (permanent resources)	79
Enable memory for Windows	80
Clean the product	81
Clean the print-cartridge area	81
Clean the paper path (HP LaserJet P2050 Series Printers only)	82
Clean the paper path (HP LaserJet P2030 Series Printers only)	82
Clean the Tray 1 pickup roller	83
Clean the Tray 2 pickup roller	87
Theory of operation	91
Introduction	92
Internal components	93
Timing	95
Engine control system	96
DC controller	97
Low-voltage power supply	98
High-voltage power supply	99
Laser/scanner system	100
Laser failure detection	101
Image-formation system	102
Pickup/feed/delivery system	106
Jam detection	107
Removal and replacement	109
Introduction	110
Removal and replacement strategy	110
Electrostatic discharge	110
Required tools	111
Before performing service	112
After performing service	112
Post-service test	113
Print-quality test	113
Print cartridge	114
Tray 2 cassette	115
Rollers and pads	116
Pickup roller; Tray 1	116
Pickup roller assembly; Tray 2	119
Separation-pad assembly; Tray 2	122
Transfer roller	123
External panels, covers, and doors	126
DIMM door (HP LaserJet P2050 Series only)	126
Right cover	127
Reinstall the right cover	129
Left cover	130
Rear cover, rear door, and duplex-paper-feed assembly	132
Top-cover assembly	136
Cartridge-door assembly and front cover	139
Reinstall the cartridge-door assembly and front cover	141
Internal assemblies	142
Formatter PCA; HP LaserJet P2030 Series	142
Formatter PCA; HP LaserJet P2050 Series	144
Paper-pickup-gear assembly	146
Reinstall the paper-pickup-gear assembly	147
Cartridge-door switch	149
Tray 1 pickup solenoid	150
Fan	152
Reverse-sensor assembly; HP LaserJet P2050 Series	154
Power-switch assembly	156
Connecting PCA	159
Inlet-cable assembly	162
Registration assembly	164
Laser/scanner assembly	168
Fuser	170
Reinstall the fuser	174
Engine controller unit (ECU)	175
Reinstall the ECU	182
Paper-feed-guide assembly	184
Main motor	186
Face-down-drive or duplexing-paper-feed assembly	189
Duplex solenoid; HP LaserJet P2050 Series	192
Paper-retaining-delivery assembly	193
Solve problems	197
Solve general problems	198
Troubleshooting checklist	198
Factors that affect product performance	199
Basic problem solving	200
Menu map (HP LaserJet P2050 Series Printers only)	202
Troubleshooting process	203
Pre-troubleshooting checklist	203
Tools for troubleshooting	205
Continuous self-test (HP LaserJet P2050 Series only)	205
Half self-test functional check	205
Drum rotation functional check	205
Heating element check	206
High-voltage contacts check	206
Checking the print cartridge contacts	206
Component locations	208
Problem-solve diagrams	214
Repetitive image defect ruler	214
Engine controller PCA	215
Major components	217
PCAs	218
General timing chart	219
Circuit diagram	220
Status-light patterns (HP LaserJet P2030 Series Printers only)	221
Status-alert messages (HP LaserJet P2030 Series Printers only)	227
Interpret control-panel messages (HP LaserJet P2050 Series Printers only)	231
Control-panel messages	231
Event-log messages	239
Print the event log (HP LaserJet P2050 Series Printers only)	239
Print an event log (HP LaserJet P2030 Series Printers only)	239
Event log messages	239
Paper-handling problems	241
Jams	241
Common causes of jams	241
Jam locations	242
Clear jams	242
Internal areas	242
Print-cartridge area and paper path	242
Duplex paper path (HP LaserJet P2050 Series Printers only)	244
Input trays	247
Tray 1	247
Tray 2	248
Tray 3 (HP LaserJet P2050 Series Printers only)	250
Output bins	251
Solve image-quality problems	253
Printed page is different from what appeared onscreen	253
Image defect examples	254
Light print or faded	254
Toner specks	255
Dropouts	255
Vertical lines	255
Gray background	255
Toner smear	256
Loose toner	256
Vertical repetitive defects	256
Misformed characters	256
Page skew	257
Curl or wave	257
Wrinkles or creases	257
Toner scatter outline	258
Solve print-quality problems	259
Print-quality problems associated with paper	259
Print-quality problems associated with the environment	259
Print-quality problems associated with jams	259
Solve performance problems	260
Solve connectivity problems	261
Solve direct-connect problems	261
Solve network problems	261
Service mode functions	262
Secondary service menu (HP LaserJet P2050 Series Printers only)	262
Open the secondary service menu	262
Secondary service menu structure	262
Engine resets	263
Engine test page	263
Restore defaults	263
NVRAM initialization (HP LaserJet P2050 Series Printers only)	263
Parts and diagrams	265
Order parts, accessories, and supplies	266
Part numbers	267
Paper-handling accessories	267
Print cartridges	267
Memory	267
Cables and interfaces	267
Whole unit replacement	268
Screws	269
How to use the parts lists and diagrams	270
External covers, panels, and doors	272
HP LaserJet P2035	272
HP LaserJet P2055	274
Internal components	276
Internal components 1 of 5	276
Internal components 2 of 5	278
Internal components 3 of 5	280
Internal components 4 of 5	282
Internal components 5 of 5	284
Alphabetical parts list	286
Numerical parts list	289
Service and support	293
Hewlett-Packard limited warranty statement	294
Print cartridge limited warranty statement	295
End User License Agreement	296
Customer self-repair warranty service	298
Customer support	299
HP maintenance agreements	300
On-site service agreements	300
Next-day on-site service	300
Weekly (volume) on-site service	300
Repack the product	300
Extended warranty	301
Specifications	303
Physical specifications	304
Electrical specifications	304
Acoustic emissions	305
Operating environment	305
Regulatory information	307
FCC regulations	308
Declaration of conformity	309
Declaration of conformity	309
Safety statements	310
Laser safety	310
Canadian DOC regulations	310
VCCI statement (Japan)	310
Power cord statement (Japan)	310
EMI statement (Korea)	310
Laser statement for Finland	311
Substances Table (China)	312