CN203766252U

CN203766252U - Temperature-sensitive taxi bill printer

Info

Publication number: CN203766252U
Application number: CN201320855362.XU
Authority: CN
Inventors: 龚雁京
Original assignee: Shanghai Liangbiao Technology Terminal Co Ltd
Current assignee: Shanghai Liangbiao Technology Terminal Co Ltd
Priority date: 2014-05-05
Filing date: 2014-05-05
Publication date: 2014-08-13
Anticipated expiration: 2024-05-05

Abstract

The utility model discloses a temperature-sensitive taxi bill printer. The temperature-sensitive taxi bill printer is characterized by having a micro processing control module (1), a printing paper feed monitoring circuit (2) electrically connected to the micro processing control module, a printer head drive circuit (4) electrically connected to the micro processing control module, a temperature-sensitive printer head control module (3) electrically connected to the micro processing control module, and a power management control circuit (5). The temperature-sensitive taxi bill printer in the utility model has the beneficial effects that a taximeter using the temperature-sensitive printer uses a heating method to enable a temperature-sensitive medium coated on the printing paper to change color, strike noise is not generated, the life is long, and the printing speed is higher than that of a needle printer by more than 200%.

Description

Heat-sensitive type taxi bill printer

Technical field

The utility model relates to a kind of heat-sensitive type taxi bill printer.

Background technology

Existing taximeter uses the pin type impact type mini-printer printed invoice that EPSON model is M-150II mostly, and speed is slow, and the life-span is low, and noise is large.

Utility model content

The purpose of this utility model is exactly in order to address the above problem, and a kind of heat-sensitive type taxi bill printer is provided.

To achieve these goals, the utility model adopts following technical scheme:

Heat-sensitive type taxi bill printer, is characterized in that having:

Micro-processing and control module;

Printing paper paper feed supervisory circuit, it is electrically connected on micro-processing and control module;

Printing head drive circuit, it is electrically connected on micro-processing and control module;

Thermal print head control module, it is electrically connected on micro-processing and control module;

Power management control circuit;

Micro-processing and control module is taking single-chip microcomputer 89C53RC-40C-PQFP as control axis, single-chip microcomputer drives 40106 Schmidt triggers in printing head drive circuit by IO mouth P3.2-P3.5, control Schmidt trigger output stepper motor drive control signal, drive conversion via the bridge in LB1836M chip, drive the running of thermal printer paper feed stepper motor;

The IO mouth P2.0-P2.7 of single-chip microcomputer is connected to thermal print head control module;

Printing paper paper feed supervisory circuit is containing promising printing paper cursor alignment sensor, it starts to print and finishes print position for finding the content of thermal printing invoice, in the time realizing the black mark process photoelectric sensor of printing, sensor cut-off, the signal of telecommunication is through comparator U5, be input to single-chip I/O mouth P1.1 and P1.2, allow single-chip microcomputer obtain paper framing signal with this;

Terminals J1 is connected to fee register, and fee register passes through 2 pin and 3 pin of terminals J1, the invoice content of notifying single-chip microcomputer to print in the mode of asynchronous serial communication, and obtain print result by terminals J1;

In printing paper paper feed supervisory circuit 2, printing paper cursor alignment sensor O1, O2 are connected to respectively comparator LM339A

The utlity model has following beneficial effect: use the taximeter of thermal printer, make to be coated in the thermal media variable color on printing paper by the mode heating, without hit noise, the life-span is long, and print speed is faster more than 200% than impact printer.

Brief description of the drawings

Fig. 1 is heat-sensitive type taxi bill printer circuit theory diagrams.

Fig. 2 is micro-processing and control module place enlarged drawing.

Fig. 3 is printing paper paper feed supervisory circuit place enlarged drawing.

Fig. 4 is thermal print head control module place enlarged drawing.

Fig. 5 is printing head drive circuit place enlarged drawing.

Fig. 6 is power management control circuit place enlarged drawing.

Detailed description of the invention

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1-6, heat-sensitive type taxi bill printer, it comprises: micro-processing and control module 1; Printing paper paper feed supervisory circuit 2, it is electrically connected on micro-processing and control module; Printing head drive circuit 4, it is electrically connected on micro-processing and control module; Thermal print head control module 3, it is electrically connected on micro-processing and control module; Be connected to the power management control circuit 5 of printing paper paper feed supervisory circuit 2, thermal print head control module 3.

Micro-processing and control module 1 is taking single-chip microcomputer 89C53RC-40C-PQFP as control axis, single-chip microcomputer drives the U1-40106 Schmidt trigger in printing head drive circuit 4 by IO mouth P3.2-P3.5, control Schmidt trigger output stepper motor drive control signal, drive conversion via the bridge in LB1836M chip, drive the running of thermal printer paper feed stepper motor.

The IO mouth P2.0-P2.7 of single-chip microcomputer is connected to thermal print head control module 3, it uses serial synchronous pattern that the print What of needs is transferred to thermal printer heat generating body unit, via electrode drive roller, on mobile heat-sensitive paper body, will be heated by heater printing curve and word that the heating location that every a line is different needs composition.

Printing paper paper feed supervisory circuit 2 is containing promising printing paper cursor alignment sensor O1, O2 (respectively in thermal printing paper left and right two, side), it starts to print and finishes print position for finding the content of thermal printing invoice, in the time realizing the black mark process photoelectric sensor of printing, sensor cut-off, the signal of telecommunication is through comparator U5, be input to single-chip I/O mouth P1.1 and P1.2, allow single-chip microcomputer obtain paper framing signal with this.

Terminals J1 is connected to fee register, and fee register passes through 2 pin and 3 pin of terminals J1, the invoice content of notifying single-chip microcomputer to print in the mode of asynchronous serial communication, and obtain print result by terminals J1.

Referring to Fig. 3, in printing paper paper feed supervisory circuit 2, printing paper cursor alignment sensor O1, O2 are connected to respectively comparator LM339A, and printing paper cursor alignment sensor O1, O2 have an earth terminal.

Referring to Fig. 6,1 pin of voltage stabilizing chip LM2576-ADJ is connected to 1 pin of 7805 chips, the 3 pin ground connection of voltage stabilizing chip LM2576-ADJ, and 2 pin of voltage stabilizing chip LM2576-ADJ are connected to inductance L 1, resistance R 13,2 pin ground connection of 7805 chips, and be connected to capacitor C 8 between 2 pin of 7805 chips and 2 pin.

Claims

1. heat-sensitive type taxi bill printer, is characterized in that, has:

Micro-processing and control module;

Power management control circuit;

Wherein, in printing paper paper feed supervisory circuit, printing paper cursor alignment sensor O1, O2 are connected to respectively comparator LM339A.