Canon BJ-230 - Manual (Page 13)

exit support from side to side to match the width of the paper on which
you are printing such that the paper will be centered on the support.
(How you attach this support is describe later in this chapter.)
Dip switch cover
Protects the DIP switches. You use these switches to change the
printer's factory default settings. For information about changing the
default settings, see Chapter 8, Customizing the Printer.
From the Back
Parallel interface port
Allows you to attach the printer's interface cable.
AC power receptacle
Allows you to attach the printer's power cord.
Inside the Printer