Abstract

An apparatus for derailing with a passbook having a plurality of data recording surfaces, includes a passbook recording unit in which data is recorded on the recording surfaces of the passbook introduced in a conveying passage of the apparatus via an access opening. A plurality of new passbook storing boxes are arranged along the conveying passage, and a passbook detector for detecting the presence or absence of new passbook is provided in each passbook storing box. When all spaces in the data recording surfaces of the passbook received in the conveying passage are used up, a new passbook is supplied from one of the storing boxes to the conveying passage, so that the remains of data is recorded on the data recording surfaces of the new passbook by the recording unit. When all data recording surfaces of one passbook introduced into the conveying passage are used up while the passbook detector is detecting the absence of new passbooks in one storing box, a passbook supply switching unit controls the storing boxes such that one new passbook is supplied from another storing box to the conveying passage.