Hand-held scanner: |
Hand-held scanner: it as shown in figure 9.8. the hand-held scanner has a set of light emitting diodes encased in a small case. which can be conveniently held in hand during operation, to scan a document the scanner is slowly dragged from one and of the document to its other and. white is light on the document to it other and. with it s light on, the scanner has to be dragged very steadily and carefully over the documents, otherwise the conversion of the document info it equivalent bit map wi9ll not be correct the due to, this reason, hand-held scanners are used only in cases where high accuracy is not-needed. they it are also used when the volume of documents to be scanned is low, they are also much cheaper as compared to flatbed scanner.