Canon BJ-20 User Manual page 76

Select Six Lines Per Inch
Select 6 lines per inch for spacing
FORMAT
DEC
HEX
Select/Cancel Italic Mode
FORMAT
DEC
HEX
Comment
When the Epson extended graphic set is being used, the graphic
characters (x'B0 to x'DF', x'F4',x'F5') cannot be italicized.
Reset Printer
FORMAT ESC @
DEC 27 64
HEX 1B 40
Comment
Initialize all printer settings, except character pitch set using the
control panel, to the values when the printer powers up.
If the DIP switch 1 is ON (i.e. font style locked), then the font
style will be reset.
Set n/360 Line Spacing
Set line spacing to n/360 inch per line, where n can range from 0 to 255.
When n = 0 , line spacing becomes zero.
FORMAT ESC + n
DEC 27 43 n
HEX 1B 2B n
Set Page Length in Lines
ESC 2
27 50
1B 32
Select
ESC 4
27 52
1B 34
Cancel
ESC 5
27 53
1B 35