Canon MX870 Series User Manual page 393

Do not open the Document Cover or move the loaded original until copying is complete.
Note
To change the settings, see
When you press the center Function button, you can preview an image of the printout on the
preview screen.
Displaying the Preview Screen
When you make copies, you can specify various layouts on the screen that appears when you
press the left Function button.
Using Useful Copy Functions
To cancel copying, press the Stop button.
Setting Items .
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