The invention provides an image data transmitting apparatus and functions
which eliminate needs of troublesome handling of documents without
reducing utilization efficiency of the apparatus in retransmitting
document data. The image data transmitting apparatus comprises a document
reading portion; an image memory; a communication portion; and a main CPU,
in such a configuration that when a transmission trouble is detected, the
apparatus stops both reading operation of documents and transmission
operation of image data and, when the documents are reset thereafter,
resumes both of the reading and transmission operations, in which the
apparatus stores both the number of document sheets for which image data
has been transmitted by a time when transmission is stopped due to a
transmission trouble and the number of documents for which image data has
already been stored. In retransmitting all the documents, the apparatus
provides discrimination data for discriminating between documents for
which image data is not transmitted and documents for which image data is
already transmitted, based on the stored number of transmitted sheets.
