Abstract: A variable amount imprinter and a portable transaction-log recorder usable therewith, the imprinter having a pivotally mounted head assembly, upon which is mounted a roller platen assembly for effecting imprinting. Two interlocks are provided to prevent closing of the head assembly until (a) a tray for a printing plate such as a credit card has been latched in place in the recorder and (b) at least one preselected item of the variable amount data has been set to a non-zero value. Releasable latching means lock the head in its closed position until the imprinting stroke of the roller platen assembly has been completed, at which time the head is automatically returned to its open position.Means responsive to movement of the roller platen assembly during the imprinting stroke reset the variable amount data to zero after it has been imprinted. Means are also provided for centralizing the digit wheels of the variable amount assembly prior to the imprinting thereof.

Abstract: An improved apparatus for the recording of credit card transactions at point of sale, and for reporting said transactions to a central accounting and processing activity. The instant invention includes a self contained, compact, portable and lightweight cassette-like transaction log recorder which is adapted to be releasably and operatively engageable with an imprinter mechanism. The recorder contains both an external duplicate sales ticket and an internal continuous form log sheet for the sequential recording of individual transactions at the time various data is applied to successive sales tickets. The recorder is also provided with external receiving means for receiving the customer's credit card at a receiving station, means for translating the card from the receiving station to an imprinting station, means for latching the card immovably at the imprinting station to an external removing station.