becomes negative which means that the charge table 14 does not have a section number corresponding to the sub address sent from the caller the section number is determined as 34 0 34 the section number is determined by the above operation and the section number indicating unit 13 informs the charge table 14 of the determined section number next the operation of renewing the number of consumed sheets will be described with reference to fig5 first it is judged whether the printer 2 has printed information on an a3 sized sheet step s11 and whether on a b4 sized sheet step s12 if an a3 sized sheet was used the flow proceeds to step s13 where the number of a3 sheets for the section number 34 i 34 is renewed in the case of a b4 sized sheet the flow proceeds to step s14 where the number of b4 sheets for the section number 34 i 34 is renewed if judgment results in steps s11 and s12 are both negative which means the sheet size should be a4 the flow proceeds to step s15 where the number of a4 sheets is renewed in step s16 it is judged whether the transmission has been completed if a judgment result is negative the flow returns to step s11 to repeat the same operation as described above as a result of the above operations the number of recording sheets consumed in receiving certain document information can be stored in the area corresponding to the business section to which the information was transmitted therefore.