|
- If you get
black images:
- If
you get blurry or white lines images:
- If you get
"Not Enough Memory" message:
- If
you want to
convert image to text file (OCR):
- If
a scanned color image dose not display
well on the screen:
- How
to change background to white when scan as
Color RGB?
- Which
graphic file format should be used to save the image?
- If
the file size is too large:
- If
some words and pictures get lost in word
processing:
- If
you want to know how to use
IMS Shell:
- If
you want to get
30-bit images:
- If
you don't know the
function of the blue button:
- If
you want to know the maintenance of the scanner:
- If
you want to know the appropriate resolution for
scanning:
- If
you are using Windows NT:
- Windows
XP & 2000 drivers. Sorry, no driver support for XP
or 2000 from manufacturer!
- If
you get black images:
Please unlock your scanner.
 Back
- If
you get blurry or white lines images:
1. Set Display Properties to High
Color (16-bit).
2. Allow 3 minutes for scanner to
warm up.
Back
- If
you get a "Not Enough Memory" message:
1. Make sure you have enough free space on your hard
drive.
2. Click the "Reset" button in Vividscan Twain
Driver.
3. Lower the resolution or select a smaller scanning
area.
Back
- If
you want to convert image to text file (OCR):
1. Change the "Image Type"
to "LineArt"
2. Prescan the document
3. Select scanning area
4. Scan the document
5. Close the Twain Driver
6. Drag the file to the word
processor icon in the IMS Shell Application Bar.
Note: The original document must be printed with laser
printer with 300dpi or better. In addition, the text
size must be at least 12-point for optimal OCR
performance.
Back
- If
a scanned color image does not display
well on the screen:
If you want the color images to display as accurately
as possible, you should apply at least a Super VGA(256
color) video card rather than 16 color VGA. Video
displays with less than 256 color will not be able to
recreate accurate color on the screen.
Back
- How
to change a drawing background to white when scan as
Color RGB type?
Unlike the line art type, with the color RGB type, the scanner
looks for grayscale values and
seek the white background for value on a
grayscale. Change the color RGB type to line
art or increase the contrast. Also, you
can reduce the Highlight to set the
background to white.
Back
- Which
graphic file format should be used to save the image?
The file format depends on how the user aims to use the
scanned image.
Image can be divided into four main types: line art,
halftone, grayscale and color. And the
appropriated image type is vital to the quality
usability of the final scanned image.
File Formats
| Filename
Extension |
Type
of File |
Comments |
| TIFF |
Tag
Image File Format |
Best
used for printing. |
| JPG |
Joint
Photographic Experts Group |
Used
for color photographs for web sites and
e-mails. |
| GIF |
Graphic
Interchange Format |
Used
for line art and small image icons over the
internet. |
| BMP |
Windows
Bitmap |
Used
by Windows applications |
| PCX |
Zsoft
Format |
Used
by most software applications |
Back
- If
the file size is too large:
Scanned images as grayscale or color can be very
large. The user can check the front panel of the
scanner for the file size before implement a
final scan. If the file size is too large, here
are four ways to reduce the size:
1. Adjust the scaling of the image
Enter the desired percentage, drag the scaling control,
click on the arrows at left end of the scaling bar --
all these methods can adjust the scaling of the
image. The final width and height of the image
will be reflected at the right-hand side of the scaling
bar below which the file size also will be shown.
2. Create a selection area
Make a selection area choosing only that portion of the
image is needed. If there is no selection area
chosen, the image size will be certainly increase by
scanning the entire scanner bed.
3. Select an appropriate image type
An inappropriate image type selected affects the
application of the image, and also increase the file
size. For example, scanning text with "Color RGB"
instead of "Line Art" will triple the file size.
4. Scan the image at a lower resolution
Using a lower resolution will significantly reduce the
file size of the final scanned image. Keep in mind
that increasing the scanning resolution does not always
create higher image quality. After reaching a
certain threshold, more resolution only increase the
size of the scanned image with little image
improvement.
File Size
The selected portion of the scanned image is the image
size on the front panel which estimates the file size
needed to be stored. This information can be very
vital if the hard disk has limited space. The
image type, the size of the selection area, the file
format, scaling percentage, resolution -- all of these
affect the file size.
| Image
Type |
Description |
Size
of scanned image in byes |
| 1-bit
images |
Line
Art Halftone |
(Height(inch)
x WIdth(inch) x Height resolution x Width
resolution) / 8 |
| 8-bit
images |
Grayscale |
Height(inch)
x Width(inch) x Height resolution x Width
resolution |
| 24-bit
images |
Color
RGB |
Height(inch)
x Width(inch) x Height resolution x Width
resolution x 3 |
For
instance, a 5x8 inch image scanned at 100 dpi as 1-bit
image would be 50K, 400K if a 8-bit image, 1200K is an
24-bit image.
Back
- If
some words and picture get lost in word
processing:
The scanner comes with OCR function, but it is
not able to separate the regions of text and images
although optimally scan each region in one
process. Moreover, the text size cannot be smaller
than 12 point for scanning.
Back
- If
you want to know how to use IMS Shell:
Please refer to Appendix page A-5 to A-12 of the User's
Guide. For additional information please use IMS Shell's
online help or visit www.gic.com.tw.
Back
- If
you want to get 30-bit images:
The 30-bit scanner captures over a billion colors to
give you the most accurate details in highlights and
shadows. The image is then optimized to 24-bit image
file for Windows 95 operating system.
Back
- If
you don't know the function of the
blue button which locates in front
of the scanner?
This is the 1 Touch button that allows you to make
multiple scans with touch of a button.
Back
- If
you want to know the maintenance of the computer:
Cleaning the Window Glass
If a deterioration of the scanning quality is observed,
it may be necessary to clean the window glass.
Tilt the upper cover wipe the glass surface lightly with
a soft cloth and optics cleaner or rubbing alcohol.
Cleaning the Optical Parts
After disassembling the scanner, dust may accumulate
on the glass inside of the window glass. This will
cause the image scanning quality problem. In order
to avoid this, clean these parts as described below.
Cleaning the inside
window glass:
1. Remove the upper
case.
2. Clean the glass using
a cloth dampened with optics cleaner, and then carefully
wipe dry.
Cleaning the Lens:
1. Remove the CCD PCBA
by following the disassembly procedure.
2. Then Lightly wipe it
with a soft cloth and optics cleaner.
 Back
- If
you want to know the appropriate resolution for
scanning:
Resolution relates to the number of pixel per inch (ppi)
your scanned image will contain. This is related
to how many dots per inch your printed image will
contain. For online images it is best to scan at
72 dpi and at size you want to display on the
monitor. For printed images a good rule of thumb
is to have a scanned image that is the same size and
twice the resolution of the printed output for offset
printing. For inkjet or laser printing, scan at
the same size and resolution with 300 dpi (usually) as
the printed output.
Back
- If
you are using NT:
S300P does not support Window NT. It only supports
Win95/98.
Back
|
