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26 IT Essentials: PC Harware and Software Companion GuideFigure 7-20Flatbed ScannerSheet feeders can be used with flatbed scanners to scan multiple images. A sheet feeder is adevice that can be attached to some flatbed scanners to hold multiple sheets and feed theminto the scanner one at a time. This feature allows for faster scanning; however, the imagequality is usually not as good as a flatbed scanner that does not use a sheet feeder.Table 7-7 lists some advantages and disadvantages of flatbed scanners.Table 7-7Flatbed Scanner Pros and ConsAdvantagesMost common type of desktop scannerLow costConnection and setup are easy: one portDisadvantagesLimited scanning size based on size of scanningbedDescribe Handheld ScannersA handheld scanner, as shown in Figure 7-21, is small and portable. It is difficult tosmoothly scan an image using a handheld scanner. To scan an item, carefully pass the scannerhead across the item that you want to scan. As with a flatbed scanner, digital images aremade from the images collected by the handheld scanner.Figure 7-21Handheld Scanner

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