User`s manual

8–23IBM Proprinter Emulation
Double Strike Printing (Cancel)
ASCII Code ESC H
Hex Code 1B 48
Dec Code 27 72
Purpose Cancel double strike character printing.
Discussion The Double Strike Print Cancel command only cancels the double strike
print character attribute. Other print attributes such as double wide
printing are not affected. An ESC H code can occur at any place in the
datastream and is acted upon immediately.