Canon imageCLASS MF5730 Software Manual page 143

[Cropping Frame on Previewed Images]
Sets how the frame is displayed when you preview images. [Execute
Auto Cropping on Previewed Images] is selected by default.
[Execute Auto Cropping on Previewed Images]
The document will automatically be cropped to match the document
size.
[Display the Last Frame on Previewed Images]
Displays the last frame when you preview images.
[None] No frame will be displayed when you preview images.
[Cropping Size for Thumbnail View]
This setting is not available for this model.
■ [Scan] Tab
[Scan without using ScanGear's Window]
Color mode cannot be changed in applications such as OCR software
which will not display the [ScanGear MF] dialog box (UI off mode),
and consequently the document will be scanned with the settings in
the application. To override the application settings and scan in a
specific color mode, configure the settings here. Neither of these
settings is selected by default.
Setting Preferences and Scanning with ScanGear MF
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