Why does my Shopify Order Printer app jump to next page after 8th item?

[Ruturaj_Patkar]

I am using shopify order printer app for order printing. Recently I found my invoice prints are getting messy.

After observation found whenever the number of items are more than 8, the order printer after printing 8th item line jumping to next page to print remaining items lines. Just messing up the whole thing. 

Please any one guide.