HP Designjet H45000 HP Designjet H35000 and H45000 Printer Series - Image Qual - Page 16

Grainy, Feed Calibration.

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Thin horizontal banding or stripes may indicate clogged inkjets or miscalibrated media feed. ● Check jet health using the procedure at the beginning of this guide. ● Check media feed calibration from the printer's control panel (Menu > Manual Calibrations > Media Feed Calibration). ● If used, Plus mode could have the effect of producing thin horizontal banding that resembles a media feed error. In this case, try printing without Plus mode. Grainy In a "grainy" appearing image, the individual dots of ink are noticeable, instead of a photographic, continuous tone image. This may occur if the image is being viewed at a closer distance than recommended, given how the image was printed. ● Print at a higher resolution (600x600 or 600x1200 dpi). ● Print with 6 colors instead of 4 colors (if available). ● Print in a higher quality mode (Production or High Quality). Note that sometimes changing one setting or condition to address one problem may at the same time exacerbate a different problem. For example, printing with 4 colors may reduce ink load and saturation and reduce banding, but may increase a grainy appearance in images. Experience will help you decide which of several factors to adjust to improve overall image quality. 12 Chapter 5 Troubleshoot image quality problems ENWW

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Thin horizontal banding or stripes may indicate clogged inkjets or miscalibrated media feed.
●
Check jet health using the procedure at the beginning of this guide.
●
Check media feed calibration from the printer's control panel (Menu > Manual Calibrations > Media
Feed Calibration).
●
If used, Plus mode could have the effect of producing thin horizontal banding that resembles a
media feed error. In this case, try printing without Plus mode.
Grainy
In a “grainy” appearing image, the individual dots of ink are noticeable, instead of a photographic,
continuous tone image. This may occur if the image is being viewed at a closer distance than
recommended, given how the image was printed.
●
Print at a higher resolution (600x600 or 600x1200 dpi).
●
Print with 6 colors instead of 4 colors (if available).
●
Print in a higher quality mode (Production or High Quality).
Note that sometimes changing one setting or condition to address one problem may at the same time
exacerbate a different problem. For example, printing with 4 colors may reduce ink load and saturation
and reduce banding, but may increase a grainy appearance in images. Experience will help you decide
which of several factors to adjust to improve overall image quality.
12
Chapter 5
Troubleshoot image quality problems
ENWW