Anti-interference printing method of stylus printer
A dot matrix printer, printer technology, applied in printing devices, copying/marking methods, printing, etc., can solve problems such as poor communication and weakening of wireless signals, and achieve the effect of improving anti-interference ability
Inactive Publication Date: 2013-02-13
SHENZHEN XINGUODU TECH
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Problems solved by technology
However, shielding interference will cause unnecessary weakening of effective wireless signals, resulting in poor communication.
Method used
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[0029] In order to fully understand the technical content of the present invention, the technical solutions of the present invention will be further introduced and illustrated below in conjunction with specific examples, but not limited thereto.
[0030] from figure 1 From the analysis of the printing principle, we can see that the needle output of the printer is controlled by the printing program, but the timing of the needle output is determined by the photosensitive sensor of the printer. The signal from the photosensitive sensor is not received, and the needle does not come out). After research, it is found that under normal circumstances, the signal interval of the photosensitive sensor is basically the same, and there will be no huge deviation. Only when it is disturbed, there will be a huge deviation, and even dozens of pulses will be lost. Based on the fact that the interval is basically the same under normal circumstances, the printing program can pass the monitoring...
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The invention discloses an anti-interference printing method of a stylus printer. The anti-interference printing method includes the following steps: the printer is initialized; by means of simulation of stylus withdrawing, a normal interval Tc of the stylus withdrawing is obtained, compensation timer Ts is set, and the compensation timer Ts satisfies the equation that Ts= (1+1 / f)*Tc; printing begins; timekeeping of the compensation timer Ts begins, the fact that whether the stylus withdrawing is not conducted overtime is detected, if yes, compensation stylus withdrawing is conducted, and if not, the fact that whether a normal stylus withdrawing signal is received is detected, if yes, normal stylus withdrawing is conducted, and if not, printing is finished; and after the compensation stylus withdrawing or the normal stylus withdrawing, reset of the compensation timer Ts is conducted, and next printing stylus withdrawing is conducted. According to the anti-interference printing method, as the mode of fixed-time stylus withdrawing is adopted, when the printer is affected in a strong interference environment, and the stylus withdrawing is not conducted beyond the preset time, the stylus withdrawing is forced to be conducted, so that the condition that malposed printing occurs in the strong interference environment is prevented, and the anti-interference ability of the printer is effectively improved.
Description
technical field [0001] The invention relates to a printing method of a dot matrix printer, more specifically, an anti-interference printing method of a dot matrix printer, which solves the problem of printing misalignment, mirror images, and needle head damage in dot matrix printers in the current industry under strong electromagnetic interference environments And other issues. Background technique [0002] In the prior art, the block diagram of dot matrix printer system is as follows figure 1 shown. The principle of the system is as follows: To control the printing of the printer, we must power on the DC motor of the printer to move the print head left and right to print at different positions on the paper. The width of the printing paper is fixed. When the print head moves from the previous point to the next point, the needle-exit pulse sensor will send a needle-exit time point signal to the CPU. After the CPU detects the needle-exit signal, it will organize the data to...
Claims
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IPC IPC(8): B41M5/00B41J29/393
Inventor 黄学佳彭学斌
Owner SHENZHEN XINGUODU TECH