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: 2014-11-19
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 more fully understand the technical content of the present invention, the technical solutions of the present invention are further introduced and described below with reference to specific embodiments, but are not limited thereto.
[0030] from figure 1 Analyzing the printing principle, it can be seen that the needle ejection of the printer is controlled by the printing program, but the needle ejection time is determined by the photosensitive sensor of the printer. When the photosensitive sensor is disturbed, the needle ejection time point will be shifted or even lost (ie. No signal received from the photosensitive sensor, no needle). After research, it is found that the signal interval of the photosensitive sensor is basically the same under normal circumstances, 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 un...
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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 for a needle-type printer, and more particularly to an anti-interference printing method for a needle-type printer, which solves the problems of printing misalignment, mirror image and needle head damage of the current needle-type printer in the industry under a strong electromagnetic interference environment. And other issues. Background technique [0002] In the prior art, the block diagram of the 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 and move the print head left and right to print at different positions on the paper. The width of the paper is fixed. When the print head moves from the previous point to the next point, the needle out pulse sensor will send a needle out time point signal to the CPU. After the CPU detects the needle out signal, it will organize th...
Claims
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IPC IPC(8): B41M5/00B41J29/393
Inventor 黄学佳彭学斌
Owner SHENZHEN XINGUODU TECH