Abstract: Scanning apparatuses and related methods capable of locating object to be scanned are disclosed. One of the proposed scanning apparatuses includes: a tray for supporting objects to be scanned, wherein the tray is provided with a machine detectable mechanism; a detecting module for detecting a pattern of the machine detectable mechanism; a control circuit coupled to the detecting module for identifying at least target area on the tray according to the detecting result of the detecting module and for setting scan parameters according to a location of the at least one target area; and a scanning module coupled to the control circuit for scanning the at least one target area according to the scan parameters.

Abstract: A sheet-fed image-scanning apparatus for scanning an object on a tray is disclosed and includes a rigid mainframe, a carriage module, a second light source, a transmission module, and a holding module. The rigid mainframe provides a moving route for the tray to be moved into or out from the sheet-fed image-scanning apparatus. The carriage module illuminates the object and senses the light reflected from or penetrated through the object so as to scan the image of the object. The second light source illuminates the object from a position opposite to the carriage module. The transmission module moves the tray into and out from the sheet-fed image-scanning apparatus. The holding module keeps the tray from deviation while the tray is moving within the moving route.