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- DFI.SYS
-
- The DFI.SYS driver supports the DFI 2000, DFI 3000 and the DFI 3000 PLUS
- hand scanners.
-
- DFI.SYS allows the DFI 3000 and the DFI 3000 PLUS to use four resolutions,
- 400, 300, 200, and 100 dpi. The DFI 2000 only supports 200 dpi.
-
- Here are some examples of the switches available to configure DFI.SYS to
- different computer environments.
-
- DFI 3000 (default) 'device=dfi.sys'
- DFI 2000 'device=dfi.sys /A'
- Micro Channel Adapter 'device=dfi.sys /M'
- DFI 3000 Plus 'device=dfi.sys /P'
-
- While this driver was primarily designed for use under Windows, it works well
- in either Publishers or Plus, as long as there is EMS available. The scanner
- driver automatically recognizes the type of EMS available and displays what
- it finds at boot time, so the /W option has been removed.
-
- DFI.SYS will work without EMS, but in a restricted manner. The scanned image
- must be reduced in size. For instance, on most 640 K machines, typical scanned
- images sizes are:
-
- Resolution Image Size DOS Memory Used
-
- 200 DPI 4" X 6" 120K
- 300 DPI 4" X 3" 120K
- 400 DPI 4" X 1.5" 120K
-
- Always use a 2 color mode when scanning in images, since the scanner only
- provides black and white information. This will leave more DOS ram free to
- scan into.
-
- The '/M' switch is for the DFI Micro-Channel interface.
-
- If the driver doesn't work or a bad image is scanned in, check for
- interference from a printer port setup for LPT2.
-
- Be sure that Paintbrush and the switches on the Handy Scanner are set for
- the same resolution, or else there will be garbage included on the side of
- your scanned image.
-
- Image quality is very dependent on scanning speed. Scanning too fast will
- squash the image. The DFI 3000 PLUS has a scan over-run light, that goes out
- if you are scanning too fast. With PaintBrush, you can stop scanning, release
- the scan switch momentarily and the over-run light will come back on.
-
- LIMITATIONS:
-
- THIS DRIVER IS GAMMA RELEASE LEVEL. THIS MEANS THAT IT WORKS WELL ENOUGH TO
- PASS OUR TESTING DEPARTMENT; HOWEVER, WITH THE MYRIAD OF PC HARDWARE
- AVAILABLE ON THE MARKET TODAY, THERE MAY BE SOME PROBLEMS REMAINING.
-
- WE DO KNOW THAT THIS DRIVER (VERSION 4.01) CAN PRODUCE SEAMLESS IMAGES WITH
- EMS (LIM 4.0 SPEC.) AND 'AT' CLASS COMPUTERS.