A facsimile machine apparatus comprising: a data acquisition unit that acquires data to be transmitted by facsimile with respect to each of one or more pages, together with page information of the data; a storage unit that temporarily stores therein the data acquired by the data acquisition unit; a facsimile communication unit that reads out the data temporarily stored in the storage unit with respect to each page, and performs facsimile transmission of the data of each page to a designated counterpart facsimile machine, in the order of the pages; a modification instruction reception unit that accepts, while the facsimile communication unit is performing the facsimile transmission to the counterpart, a modification instruction to modify the data of already transmitted and untransmitted pages, with respect to each page; and a data modification unit that modifies the data of one or more pages designated as object of modification according to the modification instruction accepted by the modification instruction reception unit, while the facsimile communication unit is performing the facsimile transmission of the acquired data to the counterpart, characterized in that the facsimile machine further comprises: a decision unit that decides whether the data of the page designated as object of the modification by the data modification unit is the data of the already transmitted page; a function distinction unit that decides whether the counterpart facsimile machine is capable of modifying the data of a received page in accordance with the modification request transmitted from the facsimile machine, in the case where the decision unit decides that the data to be modified is the data of the already transmitted page; and a report image generation unit that generates a report image to be provided to the counterpart facsimile machine and representing the modification made by the data modification unit, in the case where the function distinction unit decides that the counterpart facsimile machine is incapable of performing the modification, wherein the facsimile communication unit transmits the report image to the counterpart facsimile machine decided to be incapable of performing the modification, when the report image generation unit generates the report image. a data acquisition unit that acquires data to be transmitted by facsimile with respect to each of one or more pages, together with page information of the data; a storage unit that temporarily stores therein the data acquired by the data acquisition unit; a facsimile communication unit that reads out the data temporarily stored in the storage unit with respect to each page, and performs facsimile transmission of the data of each page to a designated counterpart facsimile machine, in the order of the pages; a modification instruction reception unit that accepts, while the facsimile communication unit is performing the facsimile transmission to the counterpart, a modification instruction to modify the data of already transmitted and untransmitted pages, with respect to each page; and a data modification unit that modifies the data of one or more pages designated as object of modification according to the modification instruction accepted by the modification instruction reception unit, while the facsimile communication unit is performing the facsimile transmission of the acquired data to the counterpart, characterized in that the facsimile machine further comprises: a decision unit that decides whether the data of the page designated as object of the modification by the data modification unit is the data of the already transmitted page; a function distinction unit that decides whether the counterpart facsimile machine is capable of modifying the data of a received page in accordance with the modification request transmitted from the facsimile machine, in the case where the decision unit decides that the data to be modified is the data of the already transmitted page; and a report image generation unit that generates a report image to be provided to the counterpart facsimile machine and representing the modification made by the data modification unit, in the case where the function distinction unit decides that the counterpart facsimile machine is incapable of performing the modification, wherein the facsimile communication unit transmits the report image to the counterpart facsimile machine decided to be incapable of performing the modification, when the report image generation unit generates the report image. a decision unit that decides whether the data of the page designated as object of the modification by the data modification unit is the data of the already transmitted page; a function distinction unit that decides whether the counterpart facsimile machine is capable of modifying the data of a received page in accordance with the modification request transmitted from the facsimile machine, in the case where the decision unit decides that the data to be modified is the data of the already transmitted page; and a report image generation unit that generates a report image to be provided to the counterpart facsimile machine and representing the modification made by the data modification unit, in the case where the function distinction unit decides that the counterpart facsimile machine is incapable of performing the modification, wherein the facsimile communication unit transmits the report image to the counterpart facsimile machine decided to be incapable of performing the modification, when the report image generation unit generates the report image.