By placing originals one by one, or by placing batches of same-sized originals in the ADF, you can send them as one fax document at their original sizes, such as A3, US B (11 x 17 in.), B4, A4 and Letter.
Even if ADF Continuous Scan is not enabled, you can send the just mixed-size originals when all of the following conditions are met.
- The originals only contain A3 landscape and A4 portrait documents, or US B (17x11 in.) landscape and Letter portrait documents.
- Auto Rotation is set to On (the default is On)
-Direct Send is set to Off (the default is Off)
If you place a mix of different-sized originals in the ADF, the originals are sent at the width of the widest sheet among them and the length of each original.
Place the first batch of same-sized originals.
Select Fax on the home screen.
Specify the recipient.
Select the Fax Settings tab, and then tap ADF Continuous Scan to set this to On.
You can also select settings such as the resolution and the sending method as necessary.
Tap 
(Send).
When scanning is complete and a message is displayed on the control panel asking you to scan the next set of originals, place the next batch of same-sized originals, and then select Start Scanning.
Repeat step 6 for each paper size.
If you leave the printer untouched for the time set in Wait Time for Next Original after you have been prompted to set the next batch of same-sized originals, the printer stops storing and starts sending the document.