Title: Tax-controlled cashier
Application Number: 200510101916 Application Date: 2005.12.08
Publication Number: 1979570 Publication Date: 2007.06.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G07G1/00;G07G1/12
Applicant(s) Name: Changcheng Development Science-Technology Co., Ltd Address:
Inventor(s) Name: Huang Xin;Wang Hongxing;Wei Youkun
Attorney & Agent: guowei gang
Abstract:
    The invention relates to a tax-controlled cash register, comprising power supply, master control module, keyboard module, display module, data storage module, real-time clock module, user card module, tax-control card module, printing module, and communication interface module, where the printing module comprises a monostable circuit which drives printing head to output needles in metastable state and withdraws the printing needles in stable state. Because of adopting the specially designed monostable triggering circuit to automatically control the needle outputting time of the printing head, it can assure the printing needles can be withdrawn in the safe time in various abnormal states so as to put an end to happening of accidents of burning printing head. It adopts self-recovery fuse to protect the user card power supply circuit, so as to assure the user card seat can not influence normal operations of the other modules in system when meeting with various physical attacks. And it adds special anti-interference devices in the data storage module so as to improve data storage reliability and besides, improve the operating reliability of the whole machine.
Time: 8
<- Previous Patent:Tax controller   |  Next Patent:Tax Controller ->