Parallel port monitoring device and printing system

A monitoring device and printing system technology, applied in the electronic field, can solve problems such as single function, and achieve the effect of convenient statistics and analysis requirements

Active Publication Date: 2017-11-24
上海慧银信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, during the printing process, the printing data is transmitted to the printer through the parallel port through the host computer for direct printing, and the function is relatively single.

Method used

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  • Parallel port monitoring device and printing system
  • Parallel port monitoring device and printing system
  • Parallel port monitoring device and printing system

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Embodiment Construction

[0025] The specific implementation of the parallel port monitoring device and the printing system provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] Please refer to figure 1 , is a schematic structural diagram of a parallel port monitoring device according to a specific embodiment of the present invention.

[0027] The parallel port monitoring device includes: a parallel port data transceiving module 101 , a data conversion module 102 and a switch module 103 . The parallel port monitoring device can be used to monitor the data between the host computer and the printer, collect data and control the opening and closing of the printing function.

[0028] The parallel port data transceiver module 101 is used for receiving parallel port data and outputting parallel data corresponding to the parallel port data. The parallel port data transceiving module 101 can be connected to the output parallel port of the ...

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Abstract

The invention discloses a parallel port monitoring device and a printing system. The parallel port monitoring device comprises a parallel port data receiving and transmitting module for receiving parallel port data and outputting parallel data corresponding to the parallel port data, a data conversion module connected with the output end of the parallel port data receiving and transmitting module for receiving the parallel data output by the parallel port data receiving and transmitting module and converting the parallel data into serial data to be output through a serial interface, and a switching module, wherein one input end of the switching module is used for obtaining gating signals, and the other input end of the switching module is used for receiving switching signals, when closing signals are received, the switching module is used for stopping transmission of the gating signals, and when opening signals are received, the switching module is used for converting the gating signals into enable signals to be output. The parallel port monitoring device can monitor parallel port data sent by the printing system to a printer and performs on-off control.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a parallel port monitoring device and a printing system. Background technique [0002] At present, the printer mainly uses the parallel interface as the printer port, and the 25-pin D-line connector is used. Parallel interface printers use 8-bit data to transmit through parallel lines at the same time, occupying 8 pins at the same time, and the transmission rate is much faster than the traditional serial interface. This interface still has a large number of actual use scenarios. [0003] In the prior art, during the printing process, the printing data is transmitted to the printer through the parallel port through the host computer for direct printing, and the function is relatively single. [0004] Some users want to be able to monitor the data flow from the host to the printer in real time for analysis and statistics; they also hope to have a switch function between the ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/12G06F13/40
CPCG06F3/1237G06F13/4068G06F2213/0042G06F2213/0004Y02D10/00
Inventor 吴爽黄柯金海青隋浩淼张旭东
Owner 上海慧银信息科技有限公司
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