1. A document scanner for producing document images having a selectable range of resolutions with a minimum amount of bandwidth comprising: an imaging camera including a plurality of electronic imaging elements, one of which generates grayscale image data, the balance of said elements generating color image data, wherein said grayscale image element generates more image data than any one of said color image elements to provide a perceptively higher resolution image than said color image elements, and an image processing circuit for processing data generated by said imaging elements into a at least one of color, grayscale, or bi-tonal document images.