HP Designjet T7100 Printer series - Manual (Page 164)

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 by storing them in bags or boxes.
Colors are inaccurate
If the colors of your print do not match your expectations, try the following remedies:
1. Check that the paper type you have loaded corresponds to the paper type that you selected on the
front panel and in your software. At the same time, check the color-calibration status. If the status
is RECOMMENDED or OBSOLETE, you should perform color calibration. See Color calibration
on page 94 . If you have made any changes, reprint your job if the problem has been solved.
2. Check that you are printing on the correct side of the paper.
3. Make sure that you are using the appropriate print-quality settings. See Select print quality
on page 79 . If you have selected the EconoMode or Speed options, you might not get accurate
colors. If you change the print-quality settings, reprint your job if the problem has been solved.
4. If you are using Application Color Management, make sure that the color profile that you are
using corresponds to the selected paper type and print-quality settings. If you have doubts about
which color settings to use, see Color management on page 93 .
5. If the problem consists of color differences between your print and your monitor, follow the
instructions in the “How to calibrate your monitor” section of the HP Color Center. Reprint your job
if the problem has been solved.
6. Print the Image Diagnostics Print. See The Image Diagnostics Print on page 61 .
If the problem persists, contact your customer service representative for further support. See Get help
on page 177 .
PANTONE* colors are inaccurate
See HP Professional PANTONE Emulation on page 99 .
156 Chapter 15 Troubleshoot print-quality issues ENWW
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eshoot images