Patent ID: 7230732

Claim:
A facsimile apparatus for reading image data of a both-side original and transmitting it, comprising: reading means for reading images on both sides of the original; storing means for storing all of the image data read by said reading means; management data storing means for storing management data for management regarding front and reverse sides of the image data read by said reading means, with pairing of the front and reverse sides; discriminating means for discriminating whether or not effective image data is included on both sides of the original read by said reading means; and selecting means for selecting one of a both-side transmission mode and a one-side transmitting mode on the basis of a discrimination result of said discriminating means, wherein said selecting means selects the both-side transmitting mode when at least one sheet of original in which the effective image data is included on the both sides exists, and selects the one-side transmitting mode in the other cases; control means for notifying a partner side that a both-side transmission of the image data read from both sides of the original is to be executed, and transmitting all of the image data stored in said storage means, in a both-side transmitting mode, and for notifying the partner side that a one-side transmission of the image data read from a front side of the original is to be executed, and transmitting the image data in a one-side transmitting mode.