I
For example, to define the style, weight and character face for the primary
font, you might send thesecommand:
<ESC> (S 1S
<ESC> (S 7B
<ESC> (S 3T
which would produce italics boldface Courier.But this single
command does the same thing,all with one blow:
<ESC> (S IS7b 3T

4.2 CONTROLLING THE PRINTER

4.2.1 Self test
You can check how yourLaserPrinter 4111isprinting and have alook at its
parameter settingsby sending this Self Test command:
<ESC> Z
Noticethat the zis lowercase; this is the only PCL command that ends with
asmall letter. After you send aSelf Test command, the printer finishes
printingany pages left in its memory.Then on anewpage it printsits current
parameters(just important items such as number ofcopies and fonts in use).
The printer finishes off the page with acontinuous display of all the
characters in itsdefault font.
The printer also quickly checks its interface. Assuming it findsno trouble,
theprinter is then ready for your next page. If the printer detects aproblem
it shows acontrol panel message, which you can look up hyour Star
La.~erPrinter4111OperationsManual.
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