HP Designjet Z2100 Photo Printer series - Manual (Page 142)

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 (Mac OS Print dialog), select the custom print-quality options, and try setting
the quality level to Normal. See
Printing on page 41 .
Bronzing
If you are printing on photo paper with gray and black ink only, and you experience a gloss differential
problem when fluorescent light is directly reflected towards you from the print, producing 'bronzed'
reflections from the ink, try one of the following:
● Use the Full set of inks option (see Print in gray shades on page 49 )
● Display the print vertically or behind glass
Black and white prints do not look neutral
Consider using the Gray and Black inks only only. See Print in gray shades on page 49 .
Horizontal lines at the end of a cut sheet print
This type of defect affects only the end of a print, within approximately 30 mm of the trailing edge of the
paper. You may see some very thin horizontal lines across the print.
To avoid this problem:
1. Print the Image Diagnostics Print. See The Image Diagnostics Print on page 135 .
2. Consider printing with roll paper.
3. Consider using larger margins around your image.
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 and HP Super Heavyweight Paper. See
Order paper on page 104 .
2. Try using higher print-quality settings (see Printing on page 41 ). For instance, if you have set the
Print Quality slider to Speed, try setting it to Quality; if you have already set it to Quality, try
selecting custom options and then More Passes.
132 Chapter 12 Troubleshooting print-quality issues ENWW
Troubleshooting print-
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