Y Dimension*Enables you to specify the Y dimension of the custom paper. The Y dimension can be adjusted between 127.0 mm and355.6 mm in increments of 0.1 mm.127.0 to 355.6mm()Use the numeric keys to enter the settingvalueAppend CR to LFEnables you to specify whether to append a carriage return (CR) when line feed code (LF) is received.YesNo() or Enlarge A4 Prt WidthDetermines whether to expand the printable area of A4 paper to that of Letter size in width.OffOn() or Setting Menu List420