Canon i-SENSYS MF729Cx Important Safety Instructions And Installation Manual page 558

X dimension
Specify the horizontal dimension (short edge) of the custom paper.
77 to 215 (mm)
<Menu> <Printer Settings>
Y dimension
Specify the vertical dimension (long edge) of the custom paper.
127 to 355 (mm)
<Menu> <Printer Settings>
Append CR to LF
Select whether to append a carriage return (CR) when the machine receives a line feed code (LF). If <Yes> is selected, the print
position moves to the beginning of the next line when the machine receives an LF code. If <No> is selected, the print position moves
to the next line, just under the received LF code.
Yes
No
<Menu> <Printer Settings>
Enlarge A4 Print Width
Select whether to expand the width of the printable area of A4 size paper in portrait orientation to that of LTR size.
Off
On
<PCL> <X dimension> Specify the dimension
<PCL> <Y dimension> Specify the dimension
<PCL> <Append CR to LF>
<Apply>
<Apply>
Select <Yes> or <No>