| The Reliscan 2412 is available for
your use in the Biology Department Graphics Lab. Although
this is the oldest scanner in the department, it has high
resolution and the ability to scan slides or other transparencies.
Before using this scanner, it must be connected to the
computer. This may involve swapping out the SCSI cables that
connect various accessories to the computer. For some
reason, it is not possible to have all of the accessories attached
at once. If the computer was not set up to use the scanners,
you must connect them first.
- Turn off the computer and all
peripherals.
- Trace the SCSI cable (the thick cable that is not the power
cable) back to see where it is connected. It should be
connected to the back of the Nikon LS-2000.
- Trace the other SCSI cable on the back of the Nikon
LS-2000. If it is connected to the back of the computer,
you are all set and can proceed with turning on the power to
the scanners (Step 5).
- If the Nikon LS-2000 is not connected to the computer, find
out what is. It will either be the Polaroid Digital
Pallette or the PlexWriter CD-ROM (the cables are
marked). Carefully disconnect the SCSI attachment at the
back of the computer (you can slide the computer forward) and
replace the SCSI cable from the other accessory with the cable
connected to the LS-2000.
- With all cables in place, turn on power to both power strips
(one behind the Relisys scanner, the other attached to the
underside of the shelf over the computer).
- Turn on the Nikon LS-2000 (switch on top) and the Relisys
(switch on left rear) scanners. Be sure the green lights
on both come on.
- Boot the computer by pressing the power button on the front
of the computer. Please note that it is absolutely vital
to turn power on to the scanners before turning on the
computer. If the computer cannot find the scanners, you
must shut the computer off - rebooting it will have no effect.
- With the computer started, use either the Office Toolbar or
the Start menu to start Adobe Photoshop 5.5.
- In Photoshop, choose File:Import:Select Twain
32
Source.
- Choose the Relisys SCSI-2
Scanner. Click Select.
- Back in Photoshop, choose File:Import Twain...
This will start the Relisys software.
|
The Relisys scanning software is fairly simple. The window
is shown to the right. Starting at the top:
 | Mode: You have 3 choices, True Color, Gray
Scale, or Bi-Tone. Choose True Color for most
scanning; choose Bi-Tone for black & white images. |
| Resolution: For most scanning, leave this set at Integrated
Setting. |
|
Note: A newer driver is installed on the system
and the graphic above may not be accurate. |
| With the resolution set to integrated, you can then adjust
the slider to set the resolution. Here, it is set
at 600 lines/inch (printer resolution). Set it to 72
lines/inch for images which will only be viewed on a computer
screen. |
| If you have selected the Bi-Tone mode you will have a choice
of Dithers. I normally use Line Art, but
you can experiment. |
| Also in Bi-Tone you will have a threshhold.
This is the gray value above which all pixels will be set to
white and below which all pixels will be black.
Adjusting this will make a big difference in your image.
Unfortunately, you must make the scan to see what the
difference will be. |
| If you are making a True Color scan, you will not see
Dithers and Threshold, instead you will see Image and Gamma.
There are two choices for image, smooth and sharp.
Experiment. Gamma refers to the overall brightness of
the image. Start near 1 and experiment. |
| If you are scanning on opaque media (paper), click on the Flatbed
option. If you are scanning slides or transparencies,
click on Transparency.
 | If you are scanning transparencies, you must attach the transparency
adapter. Lift the lid straight off the
scanner. Plug the transparency adapter into the
small cord at the back of the scanner and turn the
transparency adapter on via the switch on its back.
Place the adapter over your transparency. |
| When not using the adapter turn it off to protect the
bulb and your original. |
|
| Click on Prescan to get a preview of the image. |
| Using the mouse, draw a rectangle on the preview image of
the area you want to make a final scan of. |
| Click on Scan to scan the image. A new window
will open in Photoshop with the scanned image. |
| You can make several scans before returning to
Photoshop. You cannot edit any of the images opened in
Photoshop without first closing the Relisys window. |
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