I want to set my Epson Printer (LQ 2170) to 12 Inch page lenth. The
printer manual says the command is

Esc C n (where n=number of lines per page)

so I have tried following commands

??? chr(27) + "C72"
??? chr(27) + 'C' + '72'

None of these commands work, the printer accepts command till '7' and print
'2' on the paper without considering it a part of the command and
accordingly behave in an abnormal way.