A dirty air filter will cause your RAV4 to lose 1 - 3 mpg, depending on your driving, you can save 70 - 100 gallons of gas per year simply by changing your filter regularly. The video above, shows you where the engine air filter is located in your RAV4 and how to change it!
Flatbed scanners let you scan an array of documents including photographs, loose documents and pages within a book as well as any item that can lay flat on the scanner's surface. The devices interface with Windows, Mac and Linux systems and come with user-friendly application programs.uring the scanning process, documents lay flat on the device's glass platform and do not have to move through a series of feed rollers like drum scanners. This reduces the risk of the documents being damaged or getting caught by the rollers inside of handheld or drum scanners.
1 Drum scanners are used by the publishing industry to capture incredibly detailed images. 2  They use a technology called a photomultiplier tube (PMT). 3  In PMT, the document to be scanned is mounted on a glass cylinder. 4  At the center of the cylinder is a sensor that splits light bounced from the document into three beams. Flatbed scanners, also called desktop scanners, are the most versatile and commonly used scanners. 2  In fact, this article will focus on the technology as it relates to flatbed scanners. 3  Sheet-fed scanners are similar to flatbed scanners except the document is moved and the scan head is immobile.