Canon imageRUNNER C3100 N - Manual (Page 101)

Some Basic Facts about Fonts 5-7
5
Appendix
Bitmapped fonts are fixed in size and specified by characteristics called "attributes,"
such as typeface, stroke weight, style and so on. Various types of bitmapped fonts
are produced by the combination of these attributes.
Scalable Fonts
With scalable fonts, characters are freely enlarged or compressed from the one
point to any size you wish in 0.1 point increments.