Hp 1100AHP User Manual Page 135
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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C4224-90962
Image formation troubleshooting
133
Scanned text is
not clear.
The contrast, resolution, or brightness
needs to be adjusted before scanning.
Adjust the resolution, contrast and/or
brightness setting(s) from the tool box on
the Document Assistant.
The original is on colored paper. If the original was on colored paper,
including brown recycled paper, the text
may not be clear. Try adjusting the
resolution, contrast, and/or brightness
settings from the tool box on the
Document Assistant.
There is a problem in the contact image
sensor.
Replace the contact image sensor.
Table 5-3. Solving image quality problems
Problem Cause Solution
- LaserJet 1
- HP LaserJet 1100A 3
- Service Manual ______________ 3
- Conventions 5
- Chapter Descriptions 6
- Contents 7
- 4 Removal and Replacement 8
- 5 Troubleshooting/Maintenance 9
- 6 Parts and diagrams 9
- C4224-90962 10
- Printer Specifications 11
- Printer description 12
- Hardware description 13
- Firmware description 14
- Specifications 15
- FCC compliance 18
- Protecting the Environment 19
- Material safety data sheet 21
- Environmental conformity 22
- Regulatory statements 23
- Laser safety statement 24
- Canadian DOC regulations 25
- Korean EMI statement 25
- Laser statement for Finland 26
- Product Operation 27
- Hardware overview 28
- Light status legend 28
- Printer key functionality 31
- Normal printer operation 32
- Error priority 32
- Scanner control panel 33
- Normal scanner operation 36
- Printer paper handling 37
- Paper size change 39
- Toner cartridge information 40
- Warranty statement 41
- Functional Overview 43
- Basic functions 44
- Printer functions 45
- Printer laser/scanner drive 47
- Power system on ECU 48
- Formatter system 50
- Control panel 51
- Draft mode 51
- Enhanced I/O 51
- Page Protect 51
- PJL Overview 52
- Image formation system 53
- Printer paper feed system 55
- Paper jam detection 56
- 60 Functional Overview 62
- Removal and Replacement 63
- Required tools 65
- Paper guides removal 66
- Document scanner removal 67
- Document scanner opening 68
- Contact image sensor removal 69
- Printer door removal 72
- 72 Removal and Replacement 74
- 74 Removal and Replacement 76
- Alternate procedure: 78
- Back cover removal 79
- 78 Removal and Replacement 80
- Internal paper guide removal 81
- Front cover removal 82
- Stabilizer bars removal 84
- Output roller removal 87
- 86 Removal and Replacement 88
- Delivery assembly removal 89
- 88 Removal and Replacement 90
- To reinstall 91
- Fusing element removal 92
- 92 Removal and Replacement 94
- 94 Removal and Replacement 96
- 96 Removal and Replacement 98
- Solenoid removal 100
- Pressure roller removal 101
- Transfer roller removal 103
- Pickup roller removal 104
- Internal assemblies 105
- Kick plate removal 107
- Separation pad removal 108
- Bottom assemblies 110
- Hinge mechanism removal 114
- ECU pan removal 115
- ECU pan removal (continued) 116
- Paper feed assembly removal 117
- Troubleshooting/ 121
- Maintenance 121
- Basic troubleshooting 122
- Fatal errors/accessory errors 124
- Checking the toner cartridge 127
- Problem Cause Solution 128
- Horizontally 131
- Scanned text is 135
- Solving paper feed problems 136
- Cleaning procedures 139
- Cleaning the scanner 140
- Functional checks 142
- Self test page 143
- Heating element check 145
- Paper curl 149
- Paper path check 149
- To override SW301 150
- Troubleshooting tools 154
- Document paper path 155
- ENGINE CONTROLLER PCB 157
- Parts and diagrams 159
- Parts and supplies 161
- Consumables and accessories 162
- Ordering consumables 163
- Common hardware 164
- External covers and panels 165
- Document scanner parts 166
- Internal components 167
- 166 Parts and diagrams 168
- 168 Parts and diagrams 170
- 170 Parts and diagrams 172
- Feeder assembly 174
- Engine controller assembly 176
- Formatter pan 178
- List of Figures 185
- List of Tables 187
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