Print is 1/4" too small on one side

@sincere_sharpness7974 that second screenshot...Within your printer's settings, carefully check the scaling options to ensure it's set to 100% and explicitly disable any "Fit to Page" or "Shrink to Fit" choices, or any other percentages that deviate from 100%. Next, investigate margin controls; if a "Borderless" or "No Margins" option is present, consider enabling it, though exercise caution with roll paper to prevent ink marks if the media isn't perfectly aligned. For page layout, while "Centering" helps position your image on the 30x30 paper, the critical step is to confirm that no automatic scaling or cropping is being applied. Finally, double-check your roll paper settings to verify the printer correctly recognizes a 30-inch roll.