This document is the appendices of the USB Scanner USER GUIDE. It includes instructions on the TWAIN dialog box, copyright information, and FCC statement. Users can learn about the usage of the USB scanner and the relevant regulatory requirements.
The guide introduces the TWAIN dialog box, an industry‑standard interface that lets you scan directly from TWAIN‑compatible software. It explains how to acquire the dialog box, perform simple scans, adjust scan settings, and use batch‑scan features.
Additional sections provide scanning tips, recommended resolutions for various output devices, and troubleshooting advice for common issues such as scanner detection problems and image quality concerns.
| Resolution unit | dots per inch (dpi) |
|---|---|
| Suggested resolution for laser printer (color) | 600 dpi |
| Suggested resolution for color inkjet printer | 1/3 – 1/2 of printer resolution |
| Recommended scanning resolution for line art/text | 600 dpi |
Check that the scanner is correctly connected, power off both the computer and scanner, then reconnect them following the hardware installation instructions.
Turn off the scanner, unplug the power cord, use a cloth dampened with alcohol to clean the glass and cover separately, then dry with a lint‑free cloth.