Apparatus for arithmetically processing bill records

An apparatus for arithmetically processing bill records which comprises arithmetic operation means for processing numerical data;

• printing means so as to print one character of data after another on a line of a bill;
• an impression position register in which shifting takes place in synchronization with the movement of the printing means which is coupled thereto so as to store the progressively advancing position of the printing means;
• input means coupled to said printing means for supplying an instructing signal to said printing means for its advance and coupled to said impression position register also for supplying the impression position register with an instruction for the commencement of shifting therein and other numerical data and instructions;
• a tabset register coupled to said input means and responsive to a tabset signal therefrom and having the same digit storing capacity as said impression position register, in which shifting is carried out in synchronization with that taking place in the impression position register and is related to the advance of the printing means by storing a signal corresponding to the advance position of the printing means which has been stored in the impression position register upon receipt of a tabset signal from the input means so as to define tabset positions of the bill thus dividing one line of impression appearing thereon into sections corresponding to the desired column widths;
• an input buffer memory coupled to said input means for storing numerical data being impressed in columns of the bill as data supplied from the input means and coupled to said arithmetic operating means for storing the result of arithmetic operation from the arithmetic operation means;
• a logic circuit coupled to said buffer memory and to said tabset register for reading out numerical data stored in the buffer memory as numerical data being impressed in respective columns of the bill in synchronization with a tabset position signal delivered from the tabset register;
• first memory means coupled to said logic circuit and having a capacity to store upon receipt of an output from the logic circuit a largest possible number of digits representing the maximum printing capacity of the printing device in said first memory means which correspond to the widths of respective columns defined by the tabset positions stored in said tabset register;
• printing output control means coupled to said printing means and including an output buffer register which is coupled to said input buffer memory and to said logic circuit for temporarily storing the numerical data corresponding to respective columns of the bill from said input buffer memory in response to the output of the logic circuit which is controlled by an output issued from said tabset register each time tabset position defines the widths of columns defined by the tabset positions stored in said tabset register and supplies an output of data obtained by each character and a signal instructing the impression of said each character to the printing device and also supplies said impression position register with a signal instructing the shifting of each character in synchronization with the generation of a printing instruction;
• and program control means including additional memory means for storing programs designed for the arithmetic operation of numerical data given in the respective columns of the bill, counter means for progressively advancing counting in response to an instruction signal when impression of numerical data in each column is completed, and a readout instruction generator coupled to said counter and to said additional memory means and which, when coincidence is established between a count made by the counter and a number denoting sequential position of any of the columns indicated in a program stored in said additional memory means, generates a readout address designation instruction signal via an address designation circuit to designate an address of numerical data given in the column to be read out from said first memory means, said arithmetic operation means being coupled to said program control means and to said first memory means for arithmetically processing numerical data read out from the first memory means upon receipt of a function instruction signal from the readout instruction generator of the program control means for causing results of arithmetic operation to be stored in the buffer memory.