Canon MP360 User Manual page 140

The monitor display colours are set too low.
In [Display Properties], set the display colours to 16-bit colour, 24-bit colour or higher.
The scanning area is not specified.
In ScanGear MP, click [Multi-Scan] to automatically specify the scan area.
If there are white margins around documents such as photographs, or if you want to trim a
document (i.e. you want to scan only one part of a document), specify the area of the scan manually.
(See Software Guide.)
The scanned area does not cover the entire document.
Place the document approximately 1/8 in. (3 mm) away from the front and right edges of the platen
glass.
The colour tone displayed in the preview screen differs from that of the
original.
Perform calibration to scan the image with the correct colour tone. (See Software Guide.)
A cause other than the above is suspected.
Restart the computer.
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Chapter 11 Troubleshooting