What happens when a stylus printer sometimes gets stuck when it hits that place when typing?

After turning off the power of the printer, first check whether the ribbon is broken. If the ribbon is broken, it will affect the movement of the print head. If the ribbon is normal, push the print head by hand to see if it can move. If it can be moved, wipe the sliding guide (usually finger-thick steel pipe) where the print head is located, then drop a few drops of lubricating oil on the guide, which can be engine oil or sewing machine oil, and then slide the print head back and forth several times by hand. The two steps of sliding can be repeated two or three times to achieve the effect of full lubrication. In most cases, the fault will be eliminated, so you can try it.

The main reason for this failure is that the print head often works on the left side, especially when printing small format files, the print head basically does not slide to the right side, so the left guide rail is clean and lubricated, while the right guide rail is stained with dust and lacks lubricating oil. When printing large format files, the print head is easy to get stuck when moving to the right.

If the fault cannot be eliminated after refueling, it is necessary to check whether the toothed belt on the print head is normal and whether the nylon rope driving the knob of the ribbon rack on the print head is normal. Repairing these parts is a little more complicated. If you haven't repaired it, you'd better have it repaired by a professional.