Use positions 40 through 51 to specify line spacing and skipping for a printer file. Spacing refers to advancing one line at a time, and skipping refers to jumping from one print line to another.
If spacing and skipping are specified for the same line, the spacing and skipping operations are processed in the following sequence:
If the PRTCTL (printer control option) keyword is not specified on the file description specifications, an entry must be made in one of the following positions when the device is PRINTER: 40-42 (space before), 43-45 (space after), 46-48 (skip before), or 49-51 (skip after). If a space/skip entry is left blank, the particular function with the blank entry (such as space before or space after) does not occur. If entries are made in positions 40-42 (space before) or in positions 46-51 (skip before and skip after) and no entry is made in positions 43 - 45 (space after), no space occurs after printing. When PRTCTL is specified, it is used only on records with blanks specified in positions 40 through 51.
If a skip before or a skip after a line on a new page is specified, but the printer is on that line, the skip does not occur.