Sharp DX-2500N Operation Manual page 811

Problem
The quality of the
scanned image is
poor.
The scanned image is
blank.
The scanned image is
upside down or on its
side.
The [COLOUR START]
key indicator is not lit.
JPEG was selected for
the file type but the file
was created as a TIFF
file.
Point to check
Is the original printed matter such as a
book or magazine?
When scanning a colour or greyscale
original, is the colour mode set to
"Mono2"?
Is a destination included that has
[TIFF-S] selected for the format?
Is the original placed face up or face
down correctly?
Are Internet fax addresses included in
the transmission?
Are Internet fax or fax destinations
included?
Did you press the [BLACK & WHITE
START] key to begin scanning?
Use the following method to reduce the occurrence
of vertical patterns (moiré)
When the original is printed matter, vertical patterns
(moiré) may occur. Touch the [Exposure] key in the base
screen to open the exposure setting screen. The [Moiré
Reduction] checkbox appears in this screen. This
checkbox can be selected
effect. (only in scan mode and USB memory scan mode)
It may also be possible to reduce the moiré effect by
changing the resolution setting or shifting the original (or
changing its angle) slightly on the document glass.
Setting the colour mode to "Mono2" replaces the colours
in the original with either black or white. This is suitable
for text-only originals; however, for originals that contain
illustrations, it is best to use the [BLACK & WHITE
START] key with the colour mode set to [Greyscale], or
set the colour mode of the [COLOUR START] key to [Full
Colour] or [Auto]-[Greyscale] and then scan.
If you wish to send an image scanned at high
resolution to scan mode destinations, send the
image in a separate transmission.
When a broadcast transmission is performed that
includes both scan mode destinations and Internet fax
destinations that have [TIFF-S] selected for the format,
the resolution will remain fixed at [200X200dpi] even if a
different resolution setting is selected.
Reload the thermal paper correctly and send the fax
again.
When using the document glass, the original must be
placed face down. When using the automatic document
feeder, the original must be placed face up.
Send the image to the scan mode destinations in a
separate transmission.
When both scan mode and Internet fax destinations are
included in a broadcast transmission, the original
transmission orientation of Internet fax takes
precedence, and thus the file may not appear in the
correct orientation when viewed on a computer.
Use the [BLACK & WHITE START] key.
If Internet fax or fax destinations are included in the
destinations, only the [BLACK & WHITE START] key
can be used.
Change the colour mode to [Full Colour] and then
press the [COLOUR START] key.
When [JPEG] is selected for the file type and the image
is scanned in Mono 2, the file will be created as a TIFF
file.
8-29
TROUBLESHOOTING
Solution
to reduce the moiré
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