When the label only exhibits locally inferior printing quality and the ribbon is not wrinkled, the position of the print head shall be adjusted, and the adjusting position is shown as Fig. 1. The viewing direction is facing the machine, and using hex socket screw driver for the adjustment.

 

The adjusting portions for two hex socket screw locks marked in Fig. 1 are shown in Fig. 2 and Fig. 3. When the right side of the label exhibits inferior printing quality, as shown in Fig. 2, the screw at the right side shall be adjusted. When the left side of the label exhibits inferior printing quality, as shown in Fig. 3, the screw at the left side shall be adjusted. The adjusting steps are as follows:

 

  1. Clockwise rotate the screw a half circle and test printing; observe whether the printing quality has been gradually improved or not; and stop the adjustment if the quality is improved.
  2. Repeat Step 1; if the printing quality has not been gradually improved after five times, counterclockwise rotate five circles back to the original position and then proceed Step 3.

Counter-clockwise rotate the screw a half circle and test printing; observe whether the printing quality has been gradually improved or not; and stop the adjustment if the quality is improved.

Figure 1

Figure 2

Figure 3