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e-STUDIO281c/351c/451c
5.1 To Clearly Scan Text (To reduce noise around text)
Before the adjustment After the adjustment
If the original is scanned in Full color mode or
Gray scale mode, noise may occur in text or
edges of a solid filled area.
The image quality is maintained, while noise
is being reduced.
Explanation
When an original is scanned in Full color or Gray scale mode, the data compression may cause noise (splattering
of the toner colors) around text or the edges of a solid filled area. Adjust the JPEG compression rate or change
the scan resolution, in order to obtain better scanned-in image, while reducing noise.
* This adjustment will have an effect on the image scanned in Full color mode (including Auto color mode) or
Gray scale mode.
Procedures
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
below. You can use one procedure in conjunction with another. But if this changes the image quality more
than required or loses effectiveness of the adjustment, restore the settings made in the previously used
procedure to the original. Then perform the next procedure.
* All the adjustments are performed by the service technician, and by the user.
(1) When scanning the original, press the [EDIT] button on the Control Panel. Select [LOW] from among the
"JPEG COMPRESS" options.
* In the "JPEG COMPRESS" option, [MID] is selected by default.
After changing the compression rate, scan the original and check the scanned-in image quality.
If further adjustment is required, use procedure (2).
5. Scanning-specific Adjustments
5.1