Epson 8900 Series - Manual (Page 139)

IBM Proprinter XL Emulation 7-9
Cancel Unidirectional Printing
Escape sequence: ESC U NUL
Hexadecimal: 1B 55 00
Form Format and Margin Control Commands
The form format commands let you select and set some form-related
parameters. A single margin control command lets you set the left
and right margin positions.
Set Form Length to n Lines
Escape sequence: ESC C n
Hexadecimal: 1B 43 n
The variable n can be any value in the range of 1 through 127.
Set Form Length to n Inches
Escape sequence: ESC C NUL n
Hexadecimal: 1B 43 00 n
The variable n can be any value in the range of 1 through 21.
Set Top of Form Position
Escape sequence: ESC 4
Hexadecimal: 1B 34
This command sets the top of form position to the current print line.