| 摘要 |
PURPOSE:To reduce the errors of slip formation, to speed up the totalizing work of commercial transaction and to increase the commercial transaction by issuing a slip at a customer's ordering place and outputting stored data optionally to a transaction totalizing computer. CONSTITUTION:A pocket type computer 13 provided with an input key 11 and a display device 12 outputs a printing signal to a printer 15 through an inferface 14 and a printing control circuit 16, issues a slip 19 at a customer's ordering place and stores the slip issuing data. The connection of a connector 17A with a connector 17B makes it possible to output a slip printing information signal stored after being calculated through the interface 14 optionally to a transaction totalizing computer 18 arranged on the external. Consequently, errors at the slip formation are reduced, the totalizing work of commercial transaction is speeded up and the commercial transaction can be increased. |
