
HP Designjet T Series — Service Manual 1-32
Print quality troubleshooting
Problems with the Edges of objects
Stepped or not sharp
The edges of objects or lines appear to be poorly defined or lighter in
density than e
xpected.
Corrective Action
If the print quality slider has already been set to Quality in the Print
dialog, select the custom print quality options, and try setting the quality
level to Normal (refer to the User’s Guide for more information).
Darker than expected
The edges of objects seem darker than expected.
Corrective Action
If the print quality slider has already been set to Quality in the Print
dialog, select the custom print quality options, and try setting the quality
level to Normal.
Black and white prints do not look neutral
Consider printing in grayscale (color opti
ons submenu inside the printing
preference menu). See the User´s Guide for more information.
Horizontal lines at the end of a cut sheet print
There is a type of defect that only affects the end of a print, within
appro
ximately 30 mm of the trailing edge of the paper. Some very thin
horizontal lines may be seen across the print.
Corrective Action
1 Pr
int the Service Image Diagnostics Print, and clean any printheads that
need cl
eaning. Reprint the job in case the problem has been solved
.
2 Try printing with roll paper.
3 Try using larger margins around the image.
Ve
rtical lines of different colors
The print has vertical bands of different colors along it.
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