User Guide
Table Of Contents
- How to Use This Manual
- Introduction
- Conventions
- Contents
- Chapter 1 Scanner Overview
- Chapter 2 How to Scan Documents
- Chapter 3 Configuring the Scan Settings
- Chapter 4 Various Ways to Scan
- Chapter 5 Daily Care
- Chapter 6 Troubleshooting
- 6.1 Troubleshooting
- Scanner cannot be powered ON.
- The power LED goes off.
- Scanning does not start.
- Scanning takes a long time.
- Image quality is poor when scanning pictures/photos in black & white.
- Quality of scanned text or lines is unsatisfactory.
- Images are distorted or not clear.
- Vertical streaks appear on the scanned image.
- The power LED flashes after power-on.
- A shadow appears at the top or the bottom of the scanned image.
- Images scanned in black & white (or in grayscale or color) are dark.
- Automatic page size detection fails.
- 6.2 Before You Contact the Scanner Service Provider
- 6.3 Checking the Product Labels
- 6.1 Troubleshooting
- Chapter 7 Operational Settings
- Appendix
- Glossary
- Index
Introduction
Glossary
Appendix
Glossary
Index
Contents
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79
How to Scan
Documents
Configuring the
Scan Settings
Various Ways to
Scan
Daily Care
Troubleshooting
Operational
Settings
Scanner
Overview
G
Gamma
A unit which indicates the changes in the brightness of an image. It is expressed as a function of the electric input power to
devices (e.g. scanner, display) and the brightness of the image. If the gamma rate is 1 or larger, the brightness of an image
increases and vice versa. Normally, the gamma rate is set to 1 when reproducing the same brightness as the original.
Grayscale
A method which expresses the gradation (density) from black to white in 256 levels. Suitable for scanning images such as
photographs.
H
Halftone
Reproduces the color density in black & white by using dot patterns. This method is effective for scanning images such as
photographs in black & white.
I
Image processing
Refers to processing and outputting the scanned image via specified scan parameters.
Interface
The connection that allows communication between the computer and the scanner.
Inversion
A scanning method in which the black part and the white part of the image are inverted.
ISIS
ISIS (Image Scanner Interface Specification) is an API (Application Program Interface) standard for imaging devices (e.g.
scanners, digital cameras) which was developed by Captiva, a division of EMC Corporation (the former Pixel Translations)
in 1990. In order to use devices that comply with this standard, it is necessary to install a driver software that supports ISIS
standard.