Xerox 4213 manual Font characteristics, Orientation

LJ SERIES 2D EMULATION

Most font commands have two versions, one for the primary font and another for the secondary font. Once selected, it is possible to switch between them using the single-byte control codes Shift In (SI) (hexadecimal 0F, decimal 15) and Shift Out (SO) (hexadecimal 0E, decimal 14).

The primary font is the default font.

Font characteristics

A font is a set of printable characters that have common features:

·Orientation

·Symbol set

·Font source

·Spacing.

·Pitch

·Height

·Style

·Stroke weight

·Typeface.

Orientation

The orientation of a font defines whether the font characters are printed parallel to the short edge of the paper (portrait orientation) or the long edge (landscape orientation).

Note: The Printer Status Sheet identifies the fonts by their orientation. Choosing a portrait font automatically causes the printer to print in portrait orientation; landscape fonts function likewise.

Text orientations cannot be mixed in the LJ series 2D emulation. Therefore once the orientation is selected, only fonts of that orientation may be printed on a single page. The top, left, and right margins apply to different edges of the paper depending on whether portrait or landscape orientation is selected.

Selecting the orientation of a font also affects the coordinate system used to describe a particular point on the page, as shown in figures 3-1 and 3-2.

3-2 XEROX 4213 LASER PRINTER PROGRAMMER REFERENCE