【Daily Update】Why won’t the printer work properly?

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Fault analysis: Apart from issues with the printer itself or its software, the inability of the printer to function properly is likely due to the plugging and unplugging of the cable while it is still powered, which has caused damage to the printing interface. Fault resolution: To fix this issue, it is necessary to replace the print interface chip. Such chips can often be easily found on old motherboards of the same model. You can ask a professional to help solder the new chip in place ； If your printer supports a USB port, then you can connect the printer to that USB port, which means there’s no need to replace any printing interface ； Of course, you can also purchase a multi-functional card to “recreate” a new LPT port ； However, since creating a new LPT port requires jumper settings and software configuration, those without much technical knowledge had better avoid taking action rashly.