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Shading Adjustment
About shading adjustment
The shading adjustment function corrects variations in the lamp intensity and pixel sensor sensitivity, and
reduces unevenness in density in scanned images. It can be carried out by means of the User Utility using the
special shading paper, which is provided with this scanner.
When shading adjustment is required
Perform shading adjustment when the density and brightness of sections of scanned images is considerably
uneven, or when image quality does not improve after cleaning the inside of the scanner.
Before proceeding with the shading adjustment
Before beginning shading adjustment, thoroughly clean the scanning glass (F), scanning glass (B), conveyors
in the scanning area, self-cleaning brushes, ion outlets, and all rollers.
If you perform shading adjustment while these parts are dirty, lines will appear on scanned images.
Shading adjustment procedure
1. Start the User Utility.
2. Click "User Shading" on the main menu, and operate as the image display dictates.
Note
• For further details, refer to section "[User Shading]" in the help for User Utility.
Notice
• If the shading adjustment has not been performed properly, then lines might appear on scanned images
even after adjusting the shading or lines might not be eliminated even after cleaning the scanning glass.
Clean the parts, and then adjust the shading again.
84 Operating Manual
Appendix