Designjet Z Series — Service Manual 1-53
Troubleshooting Print Quality Problems
White spots on the print
White spots are seen on the print. This is probably due to paper fibers, dust,
or loose coating material.
Corrective Action
1 Clean the paper manually with a brush before printing, to remove any loose
fibers or particles.
2 Always keep the cover of the printer closed.
3 Protect paper rolls and sheets by storing them in bags or boxes.
Problems with Color Accuracy
Corrective Action
1 Ensure that the paper type being used has been color calibrated, which will
give color consistency from print to print, and from Printer to Printer. Check
that the paper type you have loaded corresponds to the paper type selected
in the front panel and in your software.
2 Check that printing is on the correct side of the paper.
3 Check that the appropriate print quality settings are being used (refer to the
User’s Guide for more information). Reprint the job in case the problem has
been solved.
4 If the problem consists of color differences between your print and your
monitor, please follow the instructions in the "How to calibrate your monitor"
section of the HP Color Center. At this point, you may wish to reprint your
job in case the problem has been solved.
5 If you are using application-managed colors, check that the color profile you
are using corresponds to the selected paper type. If you are working with
non-HP papers, you might need to create an ICC Profile. If you have doubts
about which color settings to use, or you want to create an ICC profile, see
the users guide.
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