Canon iR3245 Manual page 468

A maximum of 32 documents stored in the same inbox can be selected and sent at the same time.
A maximum of 999 pages can be sent simultaneously.
2. Specify the desired send settings → press [Start Send].
See the Sending and Facsimile Guide for instructions on the following:
Specifying a destination
Selecting the file format
Specifying the Send settings
If Restrict New Address is set to 'On' in the System Manager Settings (from the Additional Functions
screen), you cannot enter a destination in [New Address]. You have to select a stored destination by
pressing [Address Book], [Network Add.Book], or [One-touch Buttons].
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If you want to automatically delete the selected document after it is sent, press [Delete After Sending].
While the document is being sent, you cannot print or store it in another inbox.
If the selected destination is a group address that includes an inbox, the document you are sending will not
be sent to (and stored in) that inbox.
3. Press [Done].
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