PURPOSE: To constitute a printing device so that one sender data can be allowed to correspond repeatedly to each of plural address data and also the address data and the sender data can be printed by a format of the corresponding character size, respectively.

CONSTITUTION: When printing of address data is designated with a post card printing mode designation key 121, address data and sender data required for printing an address are read out successively from a directory memory 14. The read-out address data are converted to an address format stored in an address format memory 16 and printed, and also, the sender data are converted to a sender format stored in a sender format memory 18 and printed.