IBM 4400 manual Double High Print, Set/Reset, Double Strike

Double High Print, Set/Reset

Double High Print, Set/Reset

ASCII Code ESC w n

Hex Code	1B 77 n
Dec Code	27 119 n
Purpose	Turns double-high character printing on and off. Double-high
	characters are standard width but twice as high.
where:	n = hex 1 or hex 31 turns double high printing on
	n = hex 0 or hex 30 turns double high printing off

†Comment The OCR A and OCR B fonts cannot be printed in double high.

NOTE: It is recommended to use double Line Feeds and Carriage Returns when double-high character printing is on (after an ESC w control code has been sent), or else the printer overstrikes text that has already printed.

†If Superscript/Subscript (ESC S) or Condensed Print (SI) is combined with Double High printing, only Double High printing occurs.

Example The following sample illustrates double-high character printing.

Double Strike

ASCII Code ESC G

Hex Code	1B 47
Dec Code	27 71
Purpose	Makes text bolder by selecting a bold font.
†Comment	This command makes text bolder by selecting a bold font.
Example	The following sample illustrates bold character printing.

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