HP LaserJet 5000gn User Manual Page 228
- Page / 387
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Troubleshooting the Printing System
7-7
Power On
It is important to have the printer’s Control Panel functional as soon
as possible in the troubleshooting process so that the printer’s
diagnostics can assist in locating printing errors.
Table 7-2. Power on Defect or Blank Display
Problem Action
Is the power cord plugged
into the wall and the
printer? Is AC and DC
power available?
Verify. See table 7-3, “No AC Power,” on page 7-8 and table 7-4,
“No DC Power,” on page 7-9.
Is the power switch set to
on?
Set the switch to the on position. You should hear the switch
toggle. If the Front Right Side Cover has been removed recently,
be sure that the rod leading to the power supply moves as the
rocker switch is toggled.
Does the Fan turn on when
you turn on the printer?
Note: Fan operation is significant since the Fan is controlled by
the printer’s Engine Controller Board. An operational Fan
indicates the following:
1. AC power is present in the printer.
2. DC power supply is functional (24 VDC, 5 VDC, and 3.4 VDC
are being generated).
If the Fan is not working:
1. Turn off the printer and remove the printer’s Formatter PCA.
Disconnect all the printer’s paper handling options.
2. Turn on the printer and check the Fan again.
If the Fan is still not working, perform the following steps:
1. Verify that the Fan is connected to the DC Controller Assembly.
2. Replace the Fan.
3. Replace the Power Supply.
If the Fan is working but the printer’s Control Panel is blank:
1. Print an engine test. See “Engine Test” on page 7-9.
If the engine test is successful, perform the following steps:
a. Reseat the Control Panel and Formatter connector.
b. Replace the Control Panel assembly.
c. Replace the Formatter.
d. Replace the cable from the Control Panel.
2. If the engine test is not successful, replace the Power Supply.
- HP LaserJet 5000, 5000 N 1
- Service Manual 1
- 5000 GN Printers 2
- Service Manual _____________ 2
- Contents 4
- 3 Printer Operation 5
- 4 Printer Maintenance 5
- 5 Functional Information 6
- 7 Troubleshooting 8
- 8 Parts and Diagrams 8
- 6 Contents 9
- Printer Description 10
- Printer Features 11
- Identification 14
- Site Requirements 15
- Space Requirements 16
- 1-8 Printer Description 17
- Environmental Requirements 19
- Paper Specifications 20
- Supported Types of Paper 23
- Guidelines for Using Paper 24
- Transparencies 27
- Envelopes 28
- Acceptable 28
- Unacceptable 28
- Card Stock and Heavy Paper 29
- Card Stock Construction 30
- Card Stock Guidelines 30
- Safety Information 31
- FCC Regulations 32
- Laser statement for Finland 33
- Luokan 1 laserlaite 33
- Material Safety Data Sheet 34
- Protecting the Environment 35
- Service Approach 36
- Parts and Supplies 38
- Helpful Documentation 39
- Phone Numbers for Ordering 40
- Exchange Program 40
- Consumables 40
- Technical Assistance 40
- HP FIRST 41
- HP CompuServe Forum 41
- Toner Cartridge Information 43
- Warranty Statement 44
- 2-10 Service Approach 45
- Printer Operation 46
- Using the Control Panel 47
- Control Panel Keys 48
- Settings and Defaults 49
- Control Panel Menus 50
- Information Menu 51
- Paper Handling Menu 52
- Print Quality Menu 55
- Printing Menu 58
- PCL SYMBOL 60
- SET=PC-8 60
- 3-16 Printer Operation 61
- Item Values Explanation 61
- Configuration Menu 62
- I/O Menu 69
- EIO Menu (Networked Printers) 72
- Resets Menu 74
- Service Mode 75
- Service Menu 76
- Page Count 77
- Cold Reset Paper 79
- Diagnostics 79
- Clear Event Log 79
- Testing the Printer 80
- Resetting the Printer 81
- System Configuration 82
- Serial MS-DOS Commands 83
- Printer I/O Configuration 84
- Pacing (Handshaking) 85
- Printer Maintenance 86
- Cleaning Spilled Toner 89
- Preventative Maintenance 90
- 6 Transfer Charging 91
- Functional Information 92
- Printer Subsystems 93
- Power Supply System 94
- Toner Cartridge Detection 98
- DC Controller System 98
- Laser and Scanner Drive 99
- Engine Test Print 100
- Formatter System 103
- EconoMode 104
- Input/Output 105
- Printer Memory 106
- Random Access Memory (RAM) 106
- DIMM Slots 107
- Page Protect 107
- PJL Overview 108
- Control Panel 108
- Image Formation System 109
- Toner Cartridge 111
- Photosensitive Drum 112
- Photosensitive 112
- Aluminum 112
- Cleaning the Drum 113
- Conditioning the Drum 114
- Writing the Image 115
- Developing the Image 116
- Transferring the Image 117
- Variable Fusing Temperature 119
- Paper Feed System 120
- Clutches and Sensors 121
- Printing from Tray 1 122
- 5-32 Functional Information 123
- Figure 5-17 Tray 1 Pickup 123
- Printing from Tray 2 124
- 5-34 Functional Information 125
- 250-sheet Trays 126
- 5-36 Functional Information 127
- Paper Jam 128
- Duplexer 129
- Figure 5-22 130
- Paper Feed for the Duplexer 130
- Figure 5-24 132
- Duplexing Unit 132
- Uncurling Function 133
- Paper Jam in the Duplexer 135
- Basic Sequence of Operation 136
- 5-46 Functional Information 137
- Table 5-1. Printer Timing 137
- Period Timing Purpose Remark 137
- Figure 5-27 138
- Timing Diagram 138
- 5-48 Functional Information 139
- Removing and 140
- Replacing Parts 140
- User Installable Accessories 141
- Checking Memory Installation 144
- Required Tools 146
- Phillips Posidriv 147
- Removing Covers 149
- Top Cover 151
- A Top screws 152
- B Toner Cartridge Drive Arm 152
- C Rear screws 152
- Item Explanation 155
- Toner Cartridge Door Assembly 156
- Front Cover and Tray 1 157
- Front Cover 157
- Tray 1 Guide 157
- Front Cover Pins 159
- Face Down Assembly 160
- Locking Tabs 160
- Locator Pins 161
- Left and Right Side Covers 162
- Tray 1 Inner Cover 163
- Right and Left Corner Covers 165
- Corner Cover Screws 165
- Removing Assemblies 166
- Transfer Roller Assembly 167
- Transfer Guide 167
- Cleaning Brush 168
- Pressure Release Handles 169
- Screw driver lifting point 169
- Paper Handling PCA 170
- Ribbon Cable 170
- Top Margin Adjustment 171
- Figure 6-25 172
- Location of VR401 172
- Main Gear Assembly 173
- Main Motor Cables 173
- Self-tapping Screws 173
- Grounding Screw 173
- Locating Tab 174
- Engagement Arm 174
- Pickup Gear Assembly 175
- Location to Release Spring 176
- Tray 2 Shaft Gear 176
- Wire Clip 176
- Tray 1 Pickup Solenoid 177
- Power Cables 178
- Formatter Assembly 179
- Tray 1 Roller 180
- Tray 2 Roller 181
- Tab is behind this cam 181
- Bushings 181
- Paper Feed Roller Assembly 182
- Machine Screws 186
- Lock Washer/Grounding Wire 186
- Long Screws 187
- Power Supply PCA 188
- DC Controller PCA 188
- Paper Feed Belt Assembly 189
- Use Caution 190
- Tray 1 Shaft 191
- Locking Tab 191
- Tray 1 Shaft Gear 192
- Tray 1 Release Tabs 192
- Tray 2 Shaft 193
- Release Tabs 193
- Solenoid Arm 193
- Direction to Orient Shaft 194
- Tray 1 Lift Plate 195
- Paper Sensor Flag Slot 195
- Tray 1 Separation Pad 196
- Paper Guide 197
- Green Handles 197
- End Pins 197
- Paper Path Detect Sensor 198
- Face Down Bin Full Sensor 199
- Power Connection 201
- Registration Assembly 202
- Screw location 202
- Alignment Tab 203
- Stabilizer 203
- Upper Delivery Assembly 204
- Delivery Roller 204
- Delivery Roller Removal 206
- Lower Delivery Rollers 206
- Laser Scanner Assembly 208
- Main Motor 209
- Toner Cartridge Guides 210
- Leading Tab 210
- Power Inlet Assembly 211
- Grounding Wire Screw 211
- A Locking Tabs 212
- B Auxiliary covers 212
- C Front cover 212
- A Self-tapping screws 213
- Tray Indicator Assembly 214
- A Left Corner Cover screw 214
- B Tray Indicator Assembly 214
- A Tray Indicator Limit Tab 215
- B Upper Limit Stop 215
- C Lower Limit Stop 215
- Paper Size Spring Assembly 216
- A Paper Size Spring Assembly 216
- D-Roller and Feed Roller 217
- Gear Assembly and PCA 218
- A Paper Size Switch PCA 218
- B Small, Self-tapping Screws 218
- C Machine Screws 218
- Power Connector 219
- Separation Roller 220
- A Separation Roller 220
- B Return Cover 220
- Troubleshooting 222
- Troubleshooting Process 223
- Troubleshooting Process Flow 225
- Preliminary Operating Checks 227
- Power On 228
- 7-8 Troubleshooting 229
- Table 7-3. No AC Power 229
- Cause Action 229
- Engine Test 230
- Engine Test Button Location 231
- Printing an Engine Test 231
- Event Log 233
- Figure 7-2 234
- Event Log Page 234
- Display the Event Log 235
- Print the Event Log 235
- Interpret the Event Log 235
- Printer Messages 237
- <number> 241
- PROTECT=AUTO 249
- HP LaserJet Printer Family 261
- Paper Specifications Guide 261
- Problem Action 262
- Paper Path Test 263
- Information Pages 264
- 7-44 Troubleshooting 265
- Figure 7-4 Menu Map 265
- Configuration Page 266
- 7-46 Troubleshooting 267
- Figure 7-5 Configuration Page 267
- Verify installed options 268
- Image Quality 269
- Image Defects 271
- 7-52 Troubleshooting 273
- Possible Cause Action 273
- 7-56 Troubleshooting 277
- Table 7-13. Character Voids 277
- 7-58 Troubleshooting 279
- Table 7-15. Curl 279
- 7-60 Troubleshooting 281
- Table 7-18. Dropouts 281
- HP LaserJet Printer 282
- 7-62 Troubleshooting 283
- 7-64 Troubleshooting 285
- 7-66 Troubleshooting 287
- Table 7-24. Loose Toner 287
- 7-68 Troubleshooting 289
- Table 7-26. Skew 289
- Table 7-27. Toner Smear 289
- Repetitive Defect Ruler 293
- Figure 7-6 294
- Interface Troubleshooting 297
- HP JetDirect 299
- Reference Diagrams 300
- 7-80 Troubleshooting 301
- Figure 7-10 302
- 250-sheet Paper Feeder 302
- 7-82 Troubleshooting 303
- Figure 7-11 Tray 2 Paper Path 303
- Figure 7-12 304
- 500-sheet Paper Feeder 304
- 7-84 Troubleshooting 305
- Figure 7-14 306
- 7-86 Troubleshooting 307
- Figure 7-15 Duplexing Unit 307
- Figure 7-16 308
- Sensors and Signals 309
- Figure 7-18 310
- 7-90 Troubleshooting 311
- Sensor Name 311
- 7-92 Troubleshooting 313
- 7-94 Troubleshooting 315
- Figure 7-21 Motors 315
- Figure 7-22 316
- Motors (Duplexing unit) 316
- 7-96 Troubleshooting 317
- Figure 7-23 Connectors 317
- Figure 7-24 318
- 7-98 Troubleshooting 319
- Figure 7-25 PCA’s 319
- Figure 7-26 320
- PCA (Duplexing Unit) 320
- 7-100 Troubleshooting 321
- Figure 7-28 322
- 7-102 Troubleshooting 323
- Figure 7-29 Switches 323
- Figure 7-30 324
- 7-104 Troubleshooting 325
- Figure 7-32 326
- 7-106 Troubleshooting 327
- Figure 7-33 328
- 7-108 Troubleshooting 329
- Figure 7-35 330
- 7-110 Troubleshooting 331
- Parts and Diagrams 332
- Ordering Parts 333
- Ordering Consumables 333
- Accessories and Supplies 335
- 8-6 Parts and Diagrams 337
- Description Part No 337
- Table 8-3. Replaceable Cables 337
- Illustrations and Parts Lists 338
- (English) 343
- Assembly 344
- 8-28 Parts and Diagrams 359
- 2 RB2-2037-000CN 1 Tray Cover 362
- 3 RH7-1356-000CN 1 Main Motor 364
- 1 RH2-5337-000CN 1 Flat Cable 367
- Table 8-22. 500-sheet Feeder 370
- Table 8-23. 500-sheet Feeder 372
- Alphabetical Parts List 373
- 8-44 Parts and Diagrams 375
- 8-46 Parts and Diagrams 377
- Numerical Parts List 378
- 8-48 Parts and Diagrams 379
- 8-50 Parts and Diagrams 381
- 8-52 Parts and Diagrams 383
- Index 4 387
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