There are conditions that will need to adjust the print head pressure. 
 
1.  Print with thick media 
If media thickness is larger than 0.19 mm, the larger pressure is required to get good quality 
printout. 
2.  Ribbon wrinkle presented on the media 
 
There are 5 levels of pressure for adjustment. Level 1 is the minimum pressure and level 5 is the 
maximum pressure. Please refer to next section for more information.