Hitachi, Ltd.

Kenichi Okazaki

Masami Aoki

Kunio Morimoto

Kazumi Sawano

Data transmission is performed between a central processing unit and terminal apparatuses in an electronic computer system for use in financial facilities such as banks or the like. When the terminal apparatus receives a series of data blocks which are transmitted from the central processing unit, the terminal apparatus stores a flag to instruct whether the transmission of the next data block from the central processing unit is requested while the received data block is being processed or after the present received data block is processed. This flag is added to each of a plurality of display image plane formats stored in the terminal apparatus.

Method and apparatus for transmitting data

A printer control system including a printer and a control unit for controlling the printer is disclosed. The printer function designating information which is used to designate the functions, which vary in accordance with the kind of a job to be done, of the printer is stored in a memory in the control unit. When a printing operation of the printer is started, the function designating information is outputted from the memory, transmitted from the control unit to the printer and stored temporarily in a memory provided in the printer. Various kinds of operations are carried out in accordance with a control code transmitted from the control unit to the printer, and an operation for a designated job is carried out with reference to the function designating information. The designation of functions include the designation of the magnetic recording density of a printing medium having magnetic stripes, and the designation of the function of operation keys for controlling the feeding and discharge of the printing medium.

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Owariasahi, Japan

Kenichi Okazaki