Kodak PROFESSIONAL RFS 3600 User Manual page 89

Only a small portion of the full image was acquired in the scan.
The crop rectangle is in place over the preview image; remove the crop
box by click outside of the crop box on the preview image.
Other image problems occur.
Light in the area of the scanner is interfering with scanner operation.
Do not have a high level of direct light around the scanning area.
The contrast of your scanned images with consistently too-high or too-low in
Adobe Photoshop.
The monitor gamma may not be calibrated properly; calibrate it per
instructions in your Photoshop manual.
89