Hp Designjet T620 Printer series User Manual Page 132
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Ink marks on the paper
This problem can occur for several different reasons.
Horizontal smears on the front of coated paper
If a lot of ink is used on plain or coated paper, the paper absorbs the ink quickly and expands. As the
printheads move over the paper, the printheads may come into contact with the paper and smear the
printed image. This problem is normally seen only on cut sheets of paper (not on roll paper).
Whenever you notice this problem, cancel the printing job immediately. Press the Cancel key and also
cancel the job from your computer application. Soaked paper can damage the printheads.
Try the following suggestions to avoid this problem:
1. Check that the paper type you have loaded corresponds to the paper type selected in the front
panel and in your software. To check on the front panel, use the View loaded paper key
.
2. Use a recommended paper type (see
Order paper on page 106) and the correct print settings.
3. If using sheet paper, try rotating the sheet 90 degrees. The orientation of the paper fibers may
affect performance.
4. Try changing to a thicker paper type, such as HP Heavyweight Coated Paper and HP Super
Heavyweight Plus Matte Paper.
5. Select a paper type that is slightly thinner than the paper you have loaded; this will persuade the
printer to use less ink. Here are some example paper types in ascending order of thickness: Plain
Paper, Coated Paper, Heavyweight Coated Paper, Super Heavyweight Plus Matte Paper.
6. Try to increase the margins by relocating the image to the center of the page using your software
application.
Ink marks on the back of the paper
This can happen after a lot of borderless printing, especially with non-standard paper sizes.
Ink residues on the platen are likely to mark the back of the paper.
Clean the platen with a soft cloth. Clean each rib separately without touching the foam between the ribs.
Black ink comes off when you touch the print
This problem may be caused by printing with matte black ink on glossy paper. The printer will not use
matte black ink if it knows that the paper will not retain it. To be sure of avoiding matte black ink, you
can select Photo Glossy Paper as the paper type (in the Photo Paper category).
ENWW Ink marks on the paper 129
Print-quality issues
- HP Designjet T620 1
- Printer series 1
- Using your printer 1
- Table of contents 4
- 1 Introduction 10
- Safety precautions 11
- HP Start-Up Kit 11
- Using this guide 11
- Troubleshooting 12
- Glossary 12
- Warnings and Cautions 12
- Introduction 13
- Front view 14
- The front panel 15
- Printer software 17
- 2 Installing the software 18
- Software installation 19
- Sharing the printer 21
- Connect to a network (Mac OS) 22
- 3 Setting up the printer 24
- Turn alerts on and off 25
- 4 Personalizing the printer 26
- Turn the printer on and off 27
- Access the HP Printer Utility 28
- Change the sleep mode setting 29
- Turn the buzzer on and off 29
- Configure network settings 30
- Personal settings 31
- 5 Paper handling 32
- Paper handling 34
- Easy loading procedure 38
- Paper menu procedure 40
- Unload a roll 42
- Load a single sheet 43
- Unload a single sheet 46
- Print on loaded paper 47
- Paper profiles 47
- Maintain paper 48
- Change the drying time 48
- Feed and cut the paper 48
- 6Printing 51
- Select print quality 52
- Select paper size 52
- Select margins options 53
- Print with shortcuts 53
- Rescale a print 54
- Print a draft 55
- High-quality printing 56
- Print in gray shades 57
- Print with no margins 57
- Reprint last printed job 57
- Use paper economically 58
- Use ink economically 58
- 7 Color management 59
- How colors are represented 60
- Color calibration 60
- Color management options 61
- Printer emulation 62
- Color adjustment options 62
- Printing in color 63
- Printing in grayscale 63
- Color management 63
- 8 Practical printing examples 65
- Using Adobe Acrobat 66
- Printing examples 67
- Print a project 68
- Using HP Instant Printing 69
- Using AutoCAD 70
- Print a presentation 73
- Using Adobe Photoshop 76
- Using PowerPoint 80
- Using Project 81
- Using Excel 83
- Ink and printheads 86
- About the ink cartridges 87
- Remove an ink cartridge 88
- Insert an ink cartridge 89
- About the printheads 90
- Check the printhead status 91
- Remove a printhead 91
- Insert a printhead 94
- 10 Maintaining the printer 98
- Check printer status 99
- Replace the cutter 99
- Printer maintenance 100
- Maintain the ink cartridges 103
- Move or store the printer 103
- Update the firmware 104
- Printer maintenance kits 105
- Secure Disk Erase 105
- Update the software 105
- 11 Accessories 108
- Order ink supplies 109
- Order paper 109
- Accessories 110
- Order accessories 112
- Jetdirect print server 113
- Paper issues 114
- Unsuccessful sheet load 116
- Paper loading error messages 116
- Glossy paper 117
- Matte Paper 117
- The paper has jammed 118
- Recalibrate the paper advance 122
- Return to default calibration 123
- Print-quality issues 124
- General advice 125
- Lines are discontinuous 128
- Lines are blurred 129
- Line lengths are inaccurate 130
- The paper is not flat 131
- Ink marks on the paper 132
- White spots on the print 134
- Colors are inaccurate 134
- Colors are fading 135
- The image is clipped 135
- The Image Diagnostics Print 136
- Corrective action 138
- If you still have a problem 139
- Ink system issues 140
- Ink cartridge status messages 141
- Cannot insert a printhead 141
- Clean the printheads 142
- Align the printheads 145
- Printhead status messages 147
- General printer issues 148
- The printer does not print 149
- The printer seems slow 149
- Automatic file system check 151
- QuarkXpress 152
- Printer alerts 152
- 16 Front-panel error messages 154
- Front-panel errors 155
- 17 HP Customer Care 156
- HP Professional Services 157
- HP Instant Support 158
- HP Proactive Support 158
- Contact HP Support 159
- 18 Printer specifications 160
- Functional specifications 161
- Physical specifications 162
- Memory specifications 162
- Power specifications 162
- Ecological specifications 162
- Environmental specifications 162
- Acoustic specifications 163
- 166 Index ENWW 169
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