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故障现象 1:一台M-2024打印机在打印过程中,正程打印,逆程不打印,换同型号主机后现象相同。接着对打印机进行自检,故障依然。 分析检查:因自检不正常,所以在检查打印头控制等有关电路没问题后,开始怀疑打印头驱动机械部分。在断电状态下移动打印头,感到很费劲,又看到打印导轨干涩,加N_2高速主轴油后上电自检,现象同前。又断电反复来回移动打印头,发现色带盒正程时旋钮运转正常,回程时不转。
Symptom 1: A M-2024 printer in the printing process, the process of printing, the reverse process does not print, the same change after the same type of host the same phenomenon. Then the printer self-test, the fault is still. Analysis and checking: Due to self-test is not normal, so check the print head control and other related circuits no problem, began to doubt the print head drive mechanical parts. Move the print head in the power-off state, feel very strenuous, but also saw the print rail dry, add N_2 high-speed spindle oil power self-test, the phenomenon with the previous. Power off again and again to move the print head back and forth, found that the knob when the ribbon cassette normal operation, the return does not turn.