An Automatic Document Feeder (ADF) is a mechanism that will automatically feed an original sheet of paper so that a printer can scan some amount of the paper at once.
The Bit depth describes the number of bits used to represent the color of a single pixel in a bitmapped image. Higher color depth gives a broader range of distinct colors. As the number of bits increases, the number of possible colors becomes impractically large for a color map.
1-bit color is commonly called as monochrome or black & white.
A bitmapped image format used internally by the Microsoft Windows graphics subsystem (GDI), and used commonly as a simple graphics file format on Windows.
Charge Coupled Device (CCD) is the hardware which captures the image in scanners and digital cameras.
Term used for a toner usage measurement on laser printing. For example, 5% coverage means that an A4 sided paper has about 5% image or text on it. So, if the paper or original has complicated images or lots of text on it, the coverage will be higher and at the same time, a
toner usage will be as much as the coverage.
Measurement of resolution that is used for scanning and printing. Generally, higher DPI results in a higher resolution, more visible detail in the image, and a larger file size.
Duty cycle is the page quantity which does not affect printer performance for a month. Generally the printer has the lifespan limitation such as pages per year. The lifespan means the average capacity of print-outs, usually within the warranty period. For example, if the duty cycle is 48,000 pages per month assuming 20 working days, a printer limits to 2,400 pages a day.
Shades of gray that represent light and dark portions of an image.
When color images are converted to grayscale; colors are represented by various shades of gray depending on their brightness.
An image type that simulates grayscale by varying the density of dots in a given area.
Highly colored areas consist of a large density of dots, while lighter areas consist of a lower density of dots.
A Hard Disk Drive (HDD) a.k.a. hard drive or hard disk, is a non-volatile storage device. It stores digitally-encoded data on rapidly rotating platters with magnetic surfaces.
The Institution of Electrical and Electronics Engineers (IEEE) is an non-profit organisation involved in advance development of all technologies related to electricity.
IEEE 1284 is a parallel port standard of conectivity interface developed by the Institution of Electrical and Electronics Engineers (IEEE). The term "1284-B" is a connector end of a parallel cable which is attached to other components (i-e: a printer).
The Joint Photographic Experts Group (JPEG) algorythm is a very commonly used method of compression for photographic images. It is also a file format used for storing or transmitting photos.
The JPEG algorythm is lossy which means some details of the original picture are lost when compressing the algorythm. The algorythm has a quality setting allowing to set a balance between smaller file size and better quality.
Adobe Photoshop is the most widely used photo editing software in the world.
It is also heavily used by graphic designers to create logos, buttons and other graphics for web sites.
The Tagged Image File Format (TIFF) is a non compressed bitmap image format, typically produced by scanners.
TIFF images typically include tags defining the characteristics of the image that is included in the file.