IBM Ricoh FB750 - Manual (Page 56)

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EPP
Enhanced Parallel Port mode. On some computers, you will have an EPP emulation, which is denoted by a
version number in the BIOS (ie. EPP 1.7). This mode will allow the computer to send an advanced parallel
port signal to installed parallel port device(s). The EPP mode also allows fast communications through the
parallel port and is the preferred mode for most parallel port devices.
Error Diffusion
A single-bit scanning mode that uses the size of pixels to mimic grayscale imaging with good detail.
FAQ or Frequently Asked Questions
This is a listing of questions that are often asked of tech support and their answers. If you are having
problems, if you look at the FAQs first, you might be able to solve your own problem without needing to
contact Tech Support. You can find Info’s FAQs on the Web site, the BBS, and through the fax-back system.
Fax or Facsimile
This is a method to send digitized information from a computer to another computer or Fax device through
the phone lines. Faxing requires the sending computer to have a fax-modem and faxing software installed and
the receiver to have either a computer with a fax-modem and fax software or a dedicated fax machine.
File Formats
Some programs allow you to save images or OCR text as a variety of file formats. Which formats are
available depend on the program you are using. Some file formats are specific to individual programs and
can only be used in that program. In which file format you save an image or OCR text file depend entirely
upon your uses for the file.
Free Disk Space
This is the amount of space you have FREE on your hard drive, not to the total hard drive space. If you have
a lot of programs and files on your hard drive, you may not have much free disk space.
Gamma
The gamma curve relates to the RGB component values of pixels in an image. Set the gamma curve to match
the eye (2.2).
Graphics Formats
There are several graphics formats in which you can save a scanned image. The major differences between
graphics formats is the way the image is stored (compressed vs. uncompressed), displayed (how you or
someone else can view the image), or commonly used (some formats were designed with specific uses in
mind). The appearance of any graphic differs from computer to computer based on the hardware and
software used to view it.
Grayscale
An image made up of shades of gray, like a black and white photo. Generally, grayscale is either 4-bit,
allowing 16 shades, or 8-bit, allowing 256 shades and providing a more photo-realistic quality.
Halftone
Halftone images are composed of a pattern of black dots that simulate grayscale, such as many newspaper
photos.
HiColor or RealColor
HiColor designates a 15-bit or 16-bit (bits per pixel) graphics mode, 32,768 or 65,536 colors.