User manual

Introduction
Glossary
Appendix
Glossary
Index
Contents
TOP
226
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
U
Ultrasonic sensor
A sensor that detects multifeed errors by ultrasonic soundwave. It detects multifeeds by monitoring the difference in the
amount of ultrasonic waves transmitted through the documents.
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 3.0, the data transfer rate is a maximum of 480 Mbps in Hi-Speed and a maximum of 5 Gbps in Super-Speed mode.
For USB 2.0, the data transfer rate is 1.5 Mbps in Low-Speed, 12 Mbps in Full-Speed, and a maximum of 480 Mbps in Hi-
Speed mode.
For USB 1.1, the data transfer rate is 1.5 Mbps in Low-Speed and 12 Mbps in Full Speed mode.
W
White reference sheet
The white part located inside the ADF which the scanner defines as white, in order to adjust the brightness of all other areas
accordingly.
Z
Zone OCR
A function which performs text recognition on the specified area of the scanned image.