HP Designjet Z3100 Photo Printer series - Manual (Page 178)

If edges of objects or lines appear to be poorly defined or lighter in density, 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 make sure that the More Passes and Maximum Detail options are turned off. See
Printing on page 45 .
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 make sure
that the More Passes and Maximum Detail options are turned off. See
Printing on page 45 .
Bronzing
If you are printing on photo paper in grayscale, 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:
● If using standard print quality options, ensure that the slider is set to Quality (see Select print
quality on page 47 )
● If using custom print quality options, ensure that the Gloss enhancer option is set to Whole
page (see
High-quality printing on page 54 )
● Display the print vertically or behind glass
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 172 .
2. Consider printing with roll paper.
3. Consider using larger margins around your image.
168 Chapter 13 Troubleshooting print-quality issues ENWW
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