HP laserjet 3390, 3392 all-in-one Manuale Di Servizio

Pagina di 368
Scan problems
Solving scanned-image problems
Problem
Cause
Solution
The scanned image is of poor quality.
The original might be a second-
generation photo or picture.
To eliminate the patterns, try
reducing the size of the image after
scanning.
Print the scanned image to see if
the quality is better.
Verify that your resolution and color
settings are correct for the type of
scan job that you are performing.
For best results, use the flatbed
scanner for scanning rather than
the automatic document feeder
(ADF).
The image that appears on the screen
might not be an accurate representation
of the quality of the scan.
Try adjusting your computer
monitor settings to use more colors
(or levels of gray). Typically, you
make this adjustment by opening
Display in Windows Control Panel.
Try adjusting the resolution and
color settings in the scanner
software.
The original might have been loaded
incorrectly.
Use the media guides when you load the
originals into the ADF. See 
The scanner might be dirty.
Clean the scanner. See 
.
The graphics settings might not be
suitable for the type of scan job that you
are performing.
Try changing the graphics settings.
Part of the image did not scan.
The original might have been loaded
incorrectly.
Use the media guides when you load the
originals into the ADF. See 
A colored background might be causing
images in the foreground to blend into
the background.
Try adjusting the settings before you
scan the original or enhancing the image
after you scan the original.
The original is longer than 381 mm (15
inches).
The maximum scannable length is 381
mm (15 inches) when you use the
automatic document feeder (ADF) input
tray. If the page exceeds the maximum
length, the scanner stops. (Copies can
be longer.)
ENWW
Scan problems
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