Canon i-SENSYS MF6140dn User Manual page 880

an A4-sized document at a resolution of 600 dpi in full color, for example, a minimum of 300 MB of free space is
required.
If an error occurs while scanning a specific image for Photoshop, access the [Edit] menu, select [Preferences], and click
[Memory & Image Cache]. Set [Memory Usage] somewhere between 50 and 60 %.
The scanner driver may not be installed properly. Uninstall the software and install it again.
"MF Driver Installation Guide"
In the event that applications installed from the User Software and Manuals DVD-ROM that
comes with the machine are not properly registered in the MF Toolbox.
Applications are automatically registered to the MF Toolbox once they have been installed. They are not, however, if
installed while the MF Toolbox is open. To access these applications from the toolbox, you need to manually register
them to the toolbox.
"Using the MF Toolbox"
A different application opens when you want to scan a document.
Register the appropriate application in the MF Toolbox.
"Using the MF Toolbox"
Scanned images are spotted or distorted.
Clean the platen glass and feeder's scanning area.
Scanned images cannot be displayed correctly if displayed smaller than the actual size, depending on the application.
Scale the images to 100 %.
Set the display colors to "High Color (16-bit or 24-bit)" or higher in [Display Properties].
A scanned image is displayed larger (or smaller) than its actual size on the computer screen.
Try one of the following to set the appropriate resolution.
Enlarge or reduce the image size in the application that you are using. In an application such as MS Paint or
Imaging, an image may be displayed larger than its actual size and cannot be scaled down.
To solve this problem, scan the image again at a different resolution. If scanned at a higher resolution, the image is
displayed larger than its actual size, and vice versa.
"Determining Resolution"
Cannot scan highlighting marks.
Specify [Scan Mode] of MF Toolbox to [Color (Magazine)]. If you cannot change [Scan Mode] of MF Toolbox,
specify [Select Source] in the Simple Mode of ScanGear MF to [Magazine (Color)].
"Using the Simple Mode"
If the condition does not get improved, clear [Use Unsharp Mask] check box in the Advanced Mode of ScanGear
MF.
"Using the Advanced Mode"
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