– The card surface is contaminated by foreign substance : 

   After checking the status of card, please change it to another clean card. 

 

– The cleaning roller is contaminated : 

   After checking the cleaning roller. If the cleaning roller is contaminated too much, 

   please change a disposable cleaning roller. 

– Dust is too much in printer : 

   Please clean the inside of printer by using cleaning kit. 

Unprinted or wrong colors printed spot