Genicom GEK 00031B manual Decverp, Decipoints Lines/Inch

DECVERP	Set Vertical Pitch: Selects line spacing
	Source: Application Destination: Levels 1, 2
	Format
	CST Ps 2
	Description
	Selects the number of lines printed for each inch on a page. Changing
	the vertical pitch changes the white space between lines, not the size
	of the character. If the number of lines/inch is increased, the amount
	of white space is decreased between the lines.
	The selective parameter values for DECVERP are as follows:
	Ps	Decipoints	Lines/Inch
	0	120	6
	1	120	6
	2	90	8
	3	60	12
	4	360	2
	5	240	3
	6	180	4
	10	Same as Ps = 11
	11	115	66 / A-size printable area
	12	86	88 / A-size printable area
	13	57	132 / A-size printable area
	14	346	22 / A-size printable area
	15	230	33 / A-size printable area
	16	172	44 / A-size printable area

In some printers, the printable area is slightly smaller than the physical paper size in use. The reduction is never more than 1/4 inch on each edge, or a total of 1/2 inch. The DECVERP parameters 11-16 are the counterparts to 1-6. They are intended to support traditional lines/page requirements on a print area that is slightly less than 11 inches long.

The exact vertical pitch produced for parameters 11-16 is printer-dependent. The result is defined as lines/page on the printable area defined for portrait printing on A-sized paper for that printer.

Pitch Select Mode (DECPSTM) does not affect DECVERR

Side Effects

Vertical tab stops are adjusted in order to retain a constant number of lines between vertical tabs. For example, if a vertical tab stop is set at 12 lines with a vertical pitch of 6 lines/inch, the tab stop stored is 2 inches from the origin. But if a DECVERP command changes the pitch to 12 lines/inch, the tab stop moves to 1 inch from the origin in order to retain 12 lines between the origin and the tab stop.

DECVERP does not affect the active position, top and bottom margins, or the page length.

Chapter 8. PPL3 Plus Emulation 228 GEK-00029B