Electronic cash register including means for producing printed validation data

Claim 1

An electronic cash register including a printing member for printing data on paper comprising: a setting means for presetting a validation printing operation request when said electronic cash register is required to produce a validation print of predetermined processed data; a receiving means for receiving a validation paper to be printed by said printing member with said predetermined processed data; a detecting means coupled to said receiving means for generating a validation paper presence signal when said validation paper is present in said receiving means; an instructing means for generating an instruction signal instructing the printing of said predetermined processed data on said validation paper by said printing member; and, a control means responsive to said setting means, said instructing means, and said detecting means for operating said printing member to print said predetermined processed data on said validation paper, said control means generating an enable signal placing said control means in a mode for printing said processed data when said setting means has been preset with a validation printing operation request and a predetermined cash register function corresponding to said processed data has been completed in said electronic cash register, said control means causing printing of said processed data by said printing member upon generation of said enable signal and in response to said presence signal from said detecting means and said instruction signal from said instructing means.