Scan bar for scanning media sheet in image scanning device and method thereof

An image scanning device comprising:

• a scan bar for scanning a media sheet in the image scanning device, the scan bar comprising:
• a sensor arrangement comprising a first sensor region and a second sensor region;
• a lens arrangement positioned to focus light reflected from the media sheet onto the sensor arrangement, wherein each of the first sensor region and the second sensor region generates image data corresponding to the media sheet from the focused light received from the lens arrangement;
• and
• a control circuitry for selectively configuring at least one of the sensor arrangement and the lens arrangement to generate image data having a desired image resolution based upon a target file size,
• wherein the first sensor region generates image data at a first image resolution that is relatively higher than an image resolution of the second sensor region;
• and
• a motion mechanism for moving one of the scan bar and the media sheet relative to the other of the scan bar and the media sheet.

A method for scanning a media sheet by a scan bar in an image scanning device, the method comprising:

• receiving light reflected from the media sheet by a lens arrangement of the scan bar;
• focusing the received light by the lens arrangement onto a sensor arrangement of the scan bar, the sensor arrangement comprising a first sensor region and a second sensor region, wherein each of the first sensor region and the second sensor region generates image data corresponding to the media sheet from the focused light received from the lens arrangement;
• and
• generating image data corresponding to the media sheet from the focused light received from the lens arrangement for scanning the media sheet, wherein image data generated by the first sensor region is of relatively higher resolution than image data generated by the second sensor region,
• wherein the reflected light is focused onto at least one of the first sensor region and the second sensor region based upon a target image file size.