I’m trying to keep 30-minute scanbacks consistent without sacrificing accuracy; my Fujitsu iX1300 on a Jackery 240 is decent, but mixed letter/legal sometimes skews when I’m parked curbside at 9 pm. Anyone getting cleaner, straighter pages from the Brother DS-940DW or Epson ES-60W in the car so signatures and stamps are crystal clear before I leave the site?