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GL-3
Front-side reading = Front-side scanning
Refers to reading the front-side of the document, specifically in Duplex reading mode.
Halftone processing
Used to reproduce a photograph which includes a shade as an image composed of dots, namely a binary
image. Dithering and error diffusion processing are examples of the halftone processing.
Heater control
The heater is set to ON or OFF to keep the lamp at a constant temperature and stabilize the intensity of
the lamp.
Hexadecimal
A base-16 numbering system(also commonly referred to as hex numbers). Since a base-16 system
requires 16 digits, numbers 0 through 9 and letters A through F are used. It is convenient to express binary
numbers in hexadecimal because fewer digits are required.
Image emphasis
Density is decreased for lighter but not completely white areas adjacent to black areas. Weakening this
emphasis eliminates spot noise or produces softened images.
Image processing
An image is read with specified parameters.
Initial screen
A screen displayed when the power is turned on or when reading is activated by the command from the
host computer.
INK EMPTY
A warning issued when the number of dots printed by the print head exceeds a specified value. It indicates
that the life of the print head is near to the end and the replacement of the print head is soon necessary.
Interface
The connection that allows communication from one part of a system to another. For example, electrical
signals are transferred between the computer and scanner over an interface cable.
16-GL 98.2.20, 10:59 AM3