HP Designjet T120 HP Designjet T120 and T520 ePrinter Series - User's Guide - Page 122

Edges of objects are darker than expected, Vertical lines of different colors - printer dust cover

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Edges of objects are darker than expected If edges of objects seem darker than expected, and you have already set the print-quality slider to Quality in the driver dialog, select the custom print-quality options, and try setting the quality level to Speed. See Printing on page 42. Vertical lines of different colors If your print has vertical bands of different colors along it: 1. Try using thicker paper, choosing from the recommended paper types such as HP Heavyweight Coated Paper. See Order paper on page 91. 2. Try using higher print-quality settings (see Printing on page 42). For instance, if you have set the Print Quality slider to Speed, try setting it to Quality. White spots on the print You may notice white spots on the print. This is probably due to paper fibers, dust or loose coating material. To avoid this problem: 1. Try cleaning the paper manually with a brush before printing, to remove any loose fibers or particles. 2. Always keep the cover of your printer closed. 3. Protect your paper rolls and sheets by storing them in bags or boxes. Colors are inaccurate 114 Chapter 13 Troubleshooting print-quality issues ENWW

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Edges of objects are darker than expected
If edges of objects seem darker than expected, and you have already set the print-quality slider to
Quality
in the driver dialog, select the custom print-quality options, and try setting the quality level to
Speed
. See
Printing
on page
42
.
Vertical lines of different colors
If your print has vertical bands of different colors along it:
1.
Try using thicker paper, choosing from the recommended paper types such as HP Heavyweight
Coated Paper. See
Order paper
on page
91
.
2.
Try using higher print-quality settings (see
Printing
on page
42
). For instance, if you have set the
Print Quality slider to
Speed
, try setting it to
Quality
.
White spots on the print
You may notice white spots on the print. This is probably due to paper fibers, dust or loose coating
material. To avoid this problem:
1.
Try cleaning the paper manually with a brush before printing, to remove any loose fibers or
particles.
2.
Always keep the cover of your printer closed.
3.
Protect your paper rolls and sheets by storing them in bags or boxes.
Colors are inaccurate
114
Chapter 13
Troubleshooting print-quality issues
ENWW