HP LaserJet 6L User Manual download pdf (Page 34)

Using the Control Panel

Control Panel Layout

The Control Panel consists of three status lights and a Front Panel Button located at

the front of the printer.

The Control Panel consists of one button and

three status lights.

ERROR (Yellow)

DATA (Green)

READY (Green)

These lights can be in only one of the

following states:

OFF ON Blinking

Installation and

Configuration

Operating Overview 3-3

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 203 204

HP LaserJet 5L and 6L Printer 1
Service Manual 1
HP LaserJet 5L HP LaserJet 6L 2
(C3941A) (C3990A) 2
Conventions 4
Chapter Descriptions 5
List of Figures 6
List of Tables 8
Product Information 10
1-2 Product Information 11
Printer Features 12
Identification 13
Product Information 1-5 14
Specifications 15
Product Overview 16
1-8 Product Information 17
19. Parallel Cable Connector 18
• Parts Direct Ordering (PDO) 19
• Parts Center Europe (PCE) 19
Product Information 1-11 20
Technical Assistance 21
Worldwide Support 22
Warranty 23
Warranty Limitations 24
Voltage Conversions 24
1-16 Product Information 25
Site Requirements 26
2 -2 Site Requirements 27
Printer Space Requirements 29
Storage Conditions 30
Toner Cartridge Distribution 31
Figure 2-2 31
Operating Overview 32
3-2 Operating Overview 33
Using the Control Panel 34
LED Lights 35
Operating Overview 3-5 36
The Front Panel Button 37
Printing a Self-Test Page 38
Figure 3-2 39
Continuous Self Test 40
Printing an Engine Test 41
Resetting the Printer 42
3-12 Operating Overview 43
Printer Maintenance 44
4-2 Printer Maintenance 45
Printer Maintenance 4-3 46
Toner Cartridge Life 47
Refilled Toner Cartridges 48
Recycling Toner Cartridges 48
Cleaning the Printer 49
Cleaning Printer Components 50
Cleaning Spilled Toner 51
Functional Overview 52
5 - 2 Functional Overview 53
Basic Printer Functions 54
DC Controller/Power System 55
Print Engine Control System 56
AC Power Distribution 57
DC Power Distribution 57
SleepMode 57
• A job is received 58
• Storing font information 59
Control Panel 60
Resolution Enhancement (REt) 60
EconoMode 61
Enhanced I/O 62
Page Protect 62
PJL Overview 62
Image Formation System 63
Toner Cartridge 64
Step 1: Drum Cleaning 64
Step 2: Drum Conditioning 64
Step 3: Image Writing 64
Step 4: Image Developing 65
Step 5: Image Transferring 65
Step 6: Image Fusing 65
Paper Feed System 66
5 - 16 Functional Overview 67
Functional Overview 5 - 17 68
Paper Jam Detection 69
Basic Sequence of Operation 70
5 - 20 Functional Overview 71
Functional Overview 5 - 21 72
5 - 22 Functional Overview 73
Removal and Replacement 74
6 - 2 Removal and Replacement 75
WARNING! 76
• 5.5 mm hexhead nutdriver 77
• small flathead screwdriver 77
• needlenose pliers 77
2 Remove the toner cartridge 79
2 Open the EP door 81
3 Remove the toner cartridge 81
Figure 6-6 83
4 Lift the Control Panel out 84
1 Remove Printer Covers 85
4 Lift the roller out 85
Delivery Assembly 86
Figure 6-10 87
Fuser Pressure Plate 88
To reinstall: 89
Heating Element 90
Figure 6-14 91
Pressure Roller 93
Face-Up/Face-Down Lever 94
Fuser Exit Roller Assembly 95
Paper Exit Sensor Flag 96
6 Lift the Solenoid off 99
1 Remove the Printer Covers 100
5 Lift the bushing out 101
To reinstall 102
Paper Feed Frame 103
Replacement 104
Figure 6-27 104
Removal and 104
6-28, callout 1) 105
Kick Plate 108
Separation Pad 110
Subpad Removal 111
Figure 6-34 111
Feed Assembly 112
5 Remove the Feed Assembly 113
2 Remove any extra memory 115
Motor Removal 116
Figure 6-39 116
DC Controller 117
ESD SENSITIVE! 118
Figure 6-42 119
Formatter PCA 120
Troubleshooting 122
7-2 Troubleshooting 123
Paper Path and Components 126
DC Controller Diagram 127
Printer Error Troubleshooting 128
Printer Status Messages 129
Table 7-3 Unclearable Error 130
Service and Error Messages 131
Troubleshooting 7-11 132
7-12 Troubleshooting 133
Check the Toner Cartridge 134
Image Defect Examples 135
Troubleshooting Checks 142
• Charging (1) 145
• Drum Ground (2) 145
• Developing Roller (3) 145
Paper Curl 147
Troubleshooting Tools 148
Repetitive Image Defect Ruler 149
Main Wiring Diagram 150
7-30 Troubleshooting 151
Troubleshooting 7-31 152
7-32 Troubleshooting 153
Parts and Diagrams 154
8-2 Parts and Diagrams 155
Ordering Parts 156
Ordering Consumables 157
Accessories and Supplies 158
Common Hardware 159
Parts and Diagrams 8-7 160
8-8 Parts and Diagrams 161
Parts and Diagrams 8-9 162
8-10 Parts and Diagrams 163
Parts and Diagrams 8-11 164
8-12 Parts and Diagrams 165
Parts and Diagrams 8-13 166
8-14 Parts and Diagrams 167
Parts and Diagrams 8-15 168
8-16 Parts and Diagrams 169
Parts and Diagrams 8-17 170
8-18 Parts and Diagrams 171
Parts and Diagrams 8-19 172
8-20 Parts and Diagrams 173
Parts and Diagrams 8-21 174
8-22 Parts and Diagrams 175
Parts and Diagrams 8-23 176
8-24 Parts and Diagrams 177
Parts and Diagrams 8-25 178
8-26 Parts and Diagrams 179
Parts Index 180
Parts Index A-3 182
A-4 Parts Index 183
Parts Index A-5 184
A-6 Parts Index 185
Parts Index A-7 186
A-8 Parts Index 187
Parts Index A-9 188
A-10 Parts Index 189
Parts Index A-11 190
A-12 Parts Index 191
Regulatory Information 192
Laser Statement (Finland) 193
Toner Safety 194
Ozone Emission 194
VCCI Statement (Japan) 195
FCC Statement (Class B) 195
Service Notes 196
C-2 Service Notes 197
SERVICE NOTE 198
C-4 Service Notes 199

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HP LaserJet 6L User Manual Page 34

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