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Energy star error diffusion, Fcc feed roller filter flatbed – Fujitsu Ricoh Fujitsu fi-7280 Color Duplex Document Scanner User Manual

Page 220

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Introduction

Glossary

Appendix

Glossary

Index

Contents

TOP

220

How to Load
Documents

Configuring the
Scan Settings

How to Use the
Operator Panel

Various Ways to
Scan

Daily Care

Troubleshooting

Operational
Settings

Replacing the
Consumables

Scanner
Overview

Energy Star

ENERGY STAR is an international standard for energy-efficient electronic equipment which was established by the US
Environmental Protection Agency (EPA) in 1992. The standard program has now been adopted by countries around the world.

Error diffusion

Method of halftone (pseudo-grayscale) image processing which is based on black & white pixel binarization. It sums the
optical density of a pixel and its adjacent pixels, then relocates black pixels in the order of density to minimize the difference
between scanned and output images. By diffusing the errors onto other pixels, the density data of adjacent pixels can be
binarized. This function suppresses moire patterns of dotted halftone images such as newspapers, and reproduces its
grayscale gradation.

F

FCC

Acronym for "The Federal Communications Commission", an independent United States government agency which is in
charge of regulating interstate and international communications via radio, television, wire, satellite and cable.The Part 15 of
the FCC regulations mentioned in this manual is designed to prevent harmful interferences on radio communication of radio
receivers and other devices which radiate radio frequency energy, and provides for the certification of radio receivers. It also
provides the certification of low power transmitters and the operation of certified transmitters without a license.

Feed roller

A roller that feeds the document through the ADF.

Filter

Refers to the following types of processing on a scanned image.

Digital Endorser:
Adds alphanumeric character strings on the scanned image data.

Page Edge Filler:
Fills in the margins of the scanned image in a specified color.

Flatbed

An input device of the scanner.
Used to scan documents that cannot be scanned in the ADF, such as books and magazines.