Printer And Screen Fonts - Epson EPL-5700 Reference Manual

Read this section if you would like to know more about fonts and see
samples of the installed fonts.
To select a font, use your application program.
Font problems are uncommon but some may occur, such as:
G
The printer substitutes a font other than the one you selected with
your software.
G
The printed page does not exactly match what is on screen.
These kinds of problems usually occur if you use an emulation other than
LJ4 or when you are trying to print fonts that are not installed in the
printer. If you have font problems, read "Printer and Screen Fonts,"
below, to find out how to fix them.

Printer and Screen Fonts

Fonts are installed on both the printer and the computer. The printer
fonts, which reside in printer memory, are used by
the printer to print text. Screen fonts, which are stored on
your computer's media, are used to display text on screen to represent the
fonts that will print.
Two separate sets of fonts are needed because the monitor
and printer have different requirements for producing fonts. The monitor
normally uses bitmap fonts that are specially designed for the screen's
resolution. A bitmap is a dot-by-dot representation of an image or
character. The printer, however, uses an outline font that is created from a
mathematical formula that describes the outline of each character. Using
outline fonts allows the printer to render any character in the requested
size.
Note:
The distinction between printer and screen fonts is not as important when you
are using TrueType fonts, which are included with Windows. TrueType is an
outline font format that can be used by both the printer and the screen.
D-2
Working with Fonts
printer font
screen font