Canon MX870 Series User Manual page 713

When no cropping frame is displayed, the entire Preview area will be scanned. When a cropping
frame is displayed, the portion within the cropping frame will be scanned.
Note
To enlarge/reduce the scanned image, enter values into
Output Settings or specify a value (by 1%) for %. The maximum value available for %
depends on the Output Resolution. % can be specified for up to 19200 dpi (the maximum
available output resolution).
Paper Size (L, etc.) & Monitor Size (1024 x 768 pixels, etc.)
(Width), (Height) and scale cannot be specified. The preview image will be cropped
according to the selected output size and resolution. The portion within the cropping frame will be
scanned at the size of the selected paper/monitor size. You can drag the cropping frame to
enlarge, reduce or move it while maintaining the aspect ratio.
Add/Delete...
Opens the Add/Delete the Output Size dialog box, in which you can specify custom output sizes.
In the Add/Delete the Output Size dialog box, you can specify multiple output sizes and save them
at one time. Saved items will be registered to the Output Size list and can be selected, along with
the predefined items.
Add
To add a size, select Print or Image display for Destination, then enter Output Size Name, Width,
and Height then click Add. The name of the added size appears in Output Size List.
Click Save to save the items listed in Output Size List.
Delete
To delete an item, select it in Output Size List and click Delete. Click Save to save the items listed
in Output Size List.
Important
You cannot delete predefined output sizes such as A4 and 1024 x 768 pixels.
Note
Save up to 10 items for each destination.
An error message appears when you enter a value outside the setting range. Enter a value
within the range displayed in the message.
Unit varies by Destination. For Print, select mm or inches. For Image display, the unit is
pixels.
Note
See " Adjusting Cropping
For details on whether or how the cropping frame is initially displayed on a preview image, see
Cropping Frame on Previewed Images in "
(Switch Aspect Ratio)
This button is available when Output Size is set to anything but Flexible.
Click this button to rotate the cropping frame. Click again to return it to the original orientation.
Frames" for details on cropping frames.
Preview Tab
(Width) and
(Height) in
" (Preferences dialog box).