User Guide

Table Of Contents
Introduction
Glossary
Appendix
Glossary
Index
Contents
TOP
82
How to Scan
Documents
Configuring the
Scan Settings
Various Ways to
Scan
Daily Care
Troubleshooting
Operational
Settings
Scanner
Overview
U
USB
USB (Universal Serial Bus) is a standard for interfaces used to connect devices such as keyboards and scanners. Up to
127 devices can be connected by this interface. It can be connected and disconnected without powering off the devices.
For USB 2.0, the data transfer rate is 1.5 Mbps at Low-speed, 12 Mbps at Full-speed, and a maximum of 480 Mbps at Hi-
speed.
For USB 1.1, the data transfer rate is 1.5 Mbps at Low-speed and 12 Mbps at Full-speed.
W
White reference sheet
The white part which the scanner uses as a reference for the color white to adjust the brightness of all other areas
accordingly.