Pentax PocketJet 3 - Manual (Page 26)

Default Font:
This command determines which of the two internal typefaces is
the default when printing ASCII text. From the factory, a Serif
font (similar to Courier) and Sans Serif font (similar to Letter
Gothic) are supplied.
Default Pitch:
This command determines default horizontal size of characters
when printing ASCII text. Smaller characters (15 per inch)
allow you to print more characters across a line than larger
characters (10 per inch). Each character in ‘10’, ‘12’, or ‘15’ per
inch mode will use the same amount of horizontal space. If
‘Proportional’ is selected, each character uses an amount of
horizontal space appropriate to the characters’ intrinsic width.
For example, the letter ‘i’ will occupy less horizontal space
than the letter ‘w’. The value supplied here will, as noted
above, affect the actual width of margin settings.
Extended Chars:
This command determines what the printer’s ESC/P®
emulation does when ASCII characters with values of between
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