2) The printer's ribbon is stuck-the edge of the ribbon is easy to entangle the ribbon wheel after being broken and fuzz, resulting in the ribbon wheel being stuck, and the ribbon cannot be retracted into the ribbon box normally. Chengdu Lin Shi thinks that the solution is: first open the printer cover, open the interlocking handle of the ribbon rotating arm and hammer row, and gently pull back the ribbon at the ribbon feeding end of the ribbon box; then close the interlocking handle of the ribbon rotating arm and hammer row, and turn on the power supply, so that the ribbon will be loaded back into the ribbon box after self-inspection.
3) Wear or fracture of the drive belt of the drive wheel of the coding machine is caused by the long service time of the drive belt or the friction of the character chain. The solution is to adjust the position of the character chain so that it no longer rubs against the driving belt. It is broken, please replace it.