Scanners

Scanners analyze images, documents, or objects and convert them to digital files. Scanners read data through red-green-blue color (RGB) from the array, process it, and then send the data to the computer via a USB or input/output. Most scanners include infrared cleaning, which removes dust and scratches from film. In order for a computer to receive the scanned image, the scanner must be connected to the computer and have an application to retrieve the document from the scanner. Without either one of these, the scanner will not be able to work effectively.http://www.consumersearch.com/www/computers/scanner-reviews/review.html Scanners

The most common type of scanner is the versatile flatbed scanner, which can be placed on the desktop. The second type is a sheet-fed scanner, similar in size to the flatbed, but requires that the document be fed through the scanning mechanism, as the scan head does not move. A third type is the handheld scanner, which requires the user to move the scan mechanism. While this scanner is good for quick capturing, the image quality is not high. The fourth type of scanner is the drum scanner, which is a professional grade scanner used for extremely high-quality images.http://www.consumersearch.com/www/computers/scanner-reviews/review.html Scanners

It is helpful to have some tips to explain the basics on scanning photos and documents. This includes the fundamentals of digital images, the basics to help you get the most from the scanner, and how it works:http://graffiti.org/faq/scan.html

• Scan photographs at twice their size (dimension) (200% magnification).

• Scan black and white drawings in gray scale mode.

• File format for final images: Save As JPG files, medium (quality/size).

• Finished size: 1024 x 786 pixels (or smaller) at 100 dpi (unless it is a panoramic view or several photos long.).

• Use lower-case letters and only numbers and letters in file names, with no spaces. Use unique names that help you remember the content and origins of the image.

• Do not save scans as BMP files or GIFs. Instead, save raw scans as either PNG, TIFF, or Photoshop files for editing.

• Epson
• Canon
• Hewlett-Packard
• Microtek
• Xerox
• Fujitsu
• Nikon