Canon MG6400 series Online Manual page 99

Important
When enabling Descreen, disable Unsharp Mask. If Unsharp Mask is enabled,
some moire effects may remain.
Note
Scanning takes longer than usual when you enable Descreen.
• Reduce Show-through
Use this function to reduce show-through in duplex documents or lighten the base color in
recycled paper and other colored paper when scanning documents.
Important
Reduce Show-through is effective only when Document or Magazine is selected
for Image Adjustment.
• Calibrate before each scan
Calibrates the scanner every time before trial scanning and scanning, to reproduce
correct color tones in scanned images.
Note
Calibration may take time depending on your computer.
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