HP Designjet Z3100 Photo Printer series - Manual (Page 175)

The whole image is blurry or grainy
1. Check that the paper type you have loaded corresponds to the paper type selected in the front panel
and in your software. To check on the front panel, use the
View loaded paper key.
2. Check that you are printing on the correct side of the paper.
3. Check that you are using appropriate print-quality settings (see Printing on page 45 ). In some cases,
you can overcome a print-quality problem merely by selecting a higher print-quality level. 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. If you change the
print-quality settings, you may wish to reprint your job at this point in case the problem has been
solved.
4. If you are using gloss enhancer, you can reduce grain by turning it off. Select the custom print quality
options, and set Gloss Enhancer to Off.
5. Try aligning the printheads. See Align the printheads on page 182 . After alignment, you may wish
to reprint your job in case the problem has been solved.
6. Go to the front panel and press the View loaded paper key to see the paper advance calibration
status. If the status is RECOMMENDED, you should perform paper advance calibration: see
Recalibrate the paper advance on page 156 .
If the problem persists despite all the above actions, contact your customer service representative for further
support.
The paper is not flat
If the paper does not lie flat when it comes out of the printer, but has shallow waves in it, you are likely
to see defects in the printed image, such as vertical stripes. This can happen when you use thin paper that
becomes saturated with ink.
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