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Place the scanner on a surface (table, desk, or counter) large enough to fit the pages  you plan to scan or display. Plug either the Hand Button or Foot Pedal into the scanner' s USB port (in the back of  the base). Spread the black document pad under the scanner' s head. Ensure that the gap of the  "black document pad" aligned with device. 1 . 2 . 3 . Check the LCD on the head portion to see if the black document pad covers the  entire screen and ensure that the desk surface or random edges are not included  within the scan. (it is extremely important to make sure that the black document pad  covers the entire screen properly to help the smart algorithm carries out its  calculations and ensure image processing is carried out properly). Special reminders 4 . 5 . When scanning larger projects (such as books or multiple documents), we  recommend using the Computer Mode (USB-PC) and connecting to the foot pedal  to make the scanning process more efficient. Using a computer during scanning will  provide additional editing functions to improve the quality and professionalism of the  scanned and processed images.  Avoid scanning documents in places near windows or environments with strong  lighting. Excessively bright ambient lighting will affect the brightness of the ET  laser  lines and negatively affect scanning results. 1) 2) Chapter II   Operation Guidelines 2.1 Scanning Preparation