Printer Issue (Canon MG2440)

i installed cups and gutenprint (which contains my printer driver type - Canon MG2400 series or Canon PIXMA MG2440 both CUPS+Gutenprint v5.3.4) on both ubuntu and arch and each time I print anything using A4 paper type it always leaves off a bit of the bottom unprinted (about 12.5 mm (+margin its 16 mm)). how can i resolve this.

I took a look at the .ppd file and attempted changing values restart cups but each change I made still resulted in an unprinted bottom,
https://www.dropbox.com/scl/fi/4d5f2...=immdgszz&dl=0