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- ---------------------------------------------------------------------
- Delrina WinFax Scanner 4.1 README Notes November 20, 1995.
- =====================================================================
-
- The following information reflects changes and additions made since
- the WinFax Scanner User's Guide went to press, and should be
- reviewed prior to running WinFax Scanner.
-
- Where applicable, these notes refer to sections in the WinFax
- Scanner User's Guide.
-
- This Version
- ============
- Delrina WinFax Scanner 4.1 is designed to work with the following:
- - WinFax PRO 4.0 under Windows 3.1
- - WinFax PRO 4.0 under Windows 95
- - WinFax PRO 7.0 under Windows 95.
-
- Resolution Setting (page 9)
- ===========================
- When scanning documents you intend to convert to text using the WinFax
- Optical Character Recognition (OCR) feature, you should set the
- resolution to 200 dpi. If you are using an OCR application other than
- WinFax, scanning should be set at 300 dpi for optimal results.
-
- Cleaning the Automatic Document Feeder (page 21)
- ================================================
- When cleaning the rollers in the scanner, press the paper detect
- switch near the top edge of the open scanner door. This causes the
- rollers to rotate for 15 seconds. While the rollers are spinning,
- clean them using the method described in your WinFax Scanner User's
- Guide.
-
- Troubleshooting (page 22)
- =========================
- Situation: The "READY" and "ERROR" lights continue to blink when the
- scanner door is closed.
-
- Solution: If you turned the scanner on when the door was open, the
- scanner will not operate even after you close the door. To reset the
- scanner, close the door, turn the power off, then turn it back on.
-
- Scanning at 256 Grayscale
- =========================
- Images scanned at 256 grayscale will be converted to grayscale-like,
- dithered images by WinFax Scanner before being faxed, saved as
- attachments, converted to text using OCR, or saved to disk in
- FXS file format.
-
- Scanning in 256 grayscale requires a lot of memory and disk space,
- especially at 200 dpi or 300 dpi. Each 300 dpi page with 256 grays
- requires about 9 MB memory.
-
- Consider halftone images as an alternative to grayscale. Many printers
- will produce results comparable in quality to grayscale images,
- but using halftone images. Halftone images also typically print
- much faster than grayscale images.
-
- Setting Halftone Patterns
- =========================
- Halftone patterns are used to produce a Black and White image from a
- grayscale original, using dot patterns to create the illusion of
- gray in a Black and White image. WinFax Scanner supports six
- different halftone patterns.
-
- To change the halftone pattern, exit WinFax Scanner. Open the file
- WFXSCAN.INI (in your Windows directory) in Notepad. Under the
- [Defaults] section, find the entry:
-
- Halftone Pattern=0
-
- Above this line, paste the lines below into WFXSCAN.INI for
- reference. The 8x8 patterns produce images with up to 64 apparent
- shades of gray. The 4x4 patterns produce images with up to 16
- apparent shades of gray.
-
- ;Halftone Pattern=1 ;8x8 Coarse (factory default)
- ;Halftone Pattern=2 ;8x8 Fine
- ;Halftone Pattern=3 ;8x8 Vertical
- ;Halftone Pattern=4 ;8x8 Horizontal
- ;Halftone Pattern=5 ;4x4 Coarse
- ;Halftone Pattern=6 ;4x4 Fine
-
- To change the halftone pattern, change the value in the line above
- to the number corresponding with the desired halftone pattern.
-
- Save WFXSCAN.INI, and restart WinFax Scanner. The specified halftone
- pattern will be used for all halftone scanning. The halftone setting
- does not affect Black and White or 256 grayscale scanning.
-
- When using halftone scanning, the results will depend on the
- particular image and the halftone pattern. Halftone pattern 0 is the
- factory default (currently set to 8x8 Coarse) and produces good
- image quality for most images. Halftone pattern 2 produces better image
- quality on some images. Halftone pattern 4 is generally the most
- efficient for faxing 64 shades, as it reduces fax transmission times.
-
- You may want to experiment with different brightness levels and
- halftone patterns to fine tune the image quality.
-
- Note: Halftones reduce the accuracy of Optical Character Recognition
- (OCR). Do not use halftone scanning if you intend to use OCR.
-
- Twain-compliant Applications
- ============================
- If you start WinFax Scanner from WinFax PRO, WinFax Scanner temporarily
- disables the application until the scan operation is completed or
- canceled.
-
- GIF File Format
- ===============
- Support for GIF file format has been removed from both WinFax Scanner
- and LeadView LITE. The LEAD50.DLL has been replaced with LEAD51.DLL
- to reflect this change.
-
- Right Mouse Button
- ==================
- In Windows 95 and Windows 3.1, you can use the right mouse button to
- select a page or display a context sensitive menu in the thumbnail area.
-
- To select a page in the thumbnail area, press the right mouse button.
- To select multiple pages, press the SHIFT or CTRL key while pressing
- the right mouse button.
-
- A context sensitive menu appears when you release the right mouse
- button while the cursor is positioned over a page in the thumbnail area.