Glossary
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Device Errors
The following are lists of device errors which require troubleshooting by a service engineer.
Dither
The process by which a group of dots is arranged to reproduce the density of grayscale. Grayscale density is reproduced by
configuring preset dot patterns. This method requires less memory compared to multilevel gray.
Double Letter size
A standard paper size used in the United States and other countries (11
×
17 in.).
dpi (dots per inch)
A measurement of resolution which is used for scanners and printers. Higher dpi indicates better resolution.
Driver
A program specifically designed for operating systems, which enables interaction with a hardware device.
Dropout color
A function which removes a specified color from a scanned image.
Duplex scanning mode
A mode for scanning both sides of the document at once. (
Ù
simplex scanning mode)
E
Edge Extract
A function which traces the boundaries between black and white areas, and extracts them as outlines.
Edge Processing
A function which decreases the density of bright colors (except for white) around black areas. Increasing the value for this
function removes dotted image noise and also produces “softened” images.
Eject roller
Rollers that feed documents from the ADF onto the stacker.
