In a franking system and method for franking of individual items of correspondence by a sender, a weighing device determines the weight of an item of correspondence and determines a postage amount associated with the item of correspondence. A printing device prints a value imprint corresponding to the postage amount and prints a code associated with the item of correspondence that represents a unique identity number onto the item of correspondence. A control computer creates a data set associated with the item of correspondence. A memory is associated with the control computer, in which the data set is stored in a file associated with the sender. The data set includes the identity number of the item of correspondence and the postage amount that is to be debited on the part of the delivery service from the sender using the data set. A registration unit is associated with the control computer, which registers the possibility of the presence of a misprint and, given the presence of a possible misprint, writes to a first data field of the data set with information about the presence of the possible misprint.

A limited-function computing device is provided that allows a user to print postage indicia or other value-bearing items on demand, without requiring the user to log in to or otherwise access specialized software executing on a general-purpose computer.