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4.3.2 Side margins
Margin settings define that part of the page on which the printer can print.
You set side margins to particular columns. The width of a column differs for
each font, depending on its pitch. Ten-pitch Courier, for example, puts
column 30 three inches from the left edge of the page (column 0). But 12-
pitch Prestige Elite puts column 30 just two and a half inches in.
You cannot set the left margin further over than the right margin. Use the
following command to set the left margin, setting n to be the column
number where you want the left margin to start:
<ESC> &a n L
Similarly, to set the right margin, you send this command with your desired
column number:
<ESC> &a
?7
M
If you want to put both left and right margirisback to the printer's printable
limits — in other words, to "clear" the side margins — send this command:
<ESC> 9
4.3.3 Top margin
Vertically, the LaserPrinter 4111confines its printing to its "text length",
which should always be less than its page length. Both are measured in lines.
You can change the meaning of a "line" with line-spacing commands
described later in this chapter.
When you set the top margin though, it does not change, even when you
change the definition of a line. You can use this command to set the top
margin anytime. Just be aware that if the current print position is below your
margin, you'll have to move the print position back up. Naturally, you have
to keep your top margin inside the page-length limit.
Use this command to set the top margin, setting n to be the number of lines
down from the top of the page that you want left blank before you start
printing:
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