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打印机在打印时装好了纸,却在打印中途停机鸣叫,报缺纸故障。修理此类故障一定要了解打印机检测装好纸的原理,在打印机的机架上装有专门用来检测机器是否装纸的检测器。STAR系列普遍采川红外线反射型的光电传感器,它是通过红外发光管发射的红外线照到纸上再反射回到红外光敏管,使光敏管导通,而无纸时反射回来的红外线不足以使光敏管导通,这
Printed in the printing of paper when the printer, but stop printing in the middle of the song, reported a paper fault. The repair of such failures must understand the principle of the printer to detect the installation of good paper, the printer’s rack equipped with a dedicated detector to detect whether the machine is loaded with paper. STAR series generally adopt the infrared reflective photoelectric sensor, which is infrared light emitted by the infrared LED shines on the paper and then reflected back to the infrared light-sensitive tube, so that the light-sensitive tube conduction, and not reflected when the infrared light is not enough to make Photosensitive tube conduction, this