D

Decipoint

One tenth of a point. A unit of measurement equal to 1/

 

720 inch. See also point.

Default

A value, parameter, attribute, or option assigned by a

 

program or system when another is not specified by the

 

user.

Diagnostic

Pertains to the detection and isolation of printer

 

malfunctions or mistakes.

Disable

To deactivate or set to OFF.

 

E

Emulation

Refers to the ability of a printer to execute the

 

commands of another printer language or protocol.

Enable

To activate or set to ON.

Escape sequence

Two or more bytes that describe a specific printer

 

control function. In an escape sequence, the first byte is

 

always the ASCII ESC character. (See also command

 

sequence, SFCC.)

Expanded

A font enhancement referring to larger-than-normal

 

character width with no change in character height.

 

F

False

Off or zero. Compare with true.

Family (or type)

A set of all variations and sizes of a type style.

Fixed-pitch fonts

See font, monospaced.

Font

The complete set of a given size of type, including

 

characters, symbols, figures, punctuation marks,

 

ligatures, signs, and accents. To fully describe a font,

 

you must specify seven characteristics: 1) type family,

 

2) spacing (proportional or monospaced), 3) type size

 

(12 point, 14 point, etc.), 4) scale factor (character

 

height/width ratio), 5) type style, 6) character weight,

 

and 7) character proportion (normal, condensed,

 

expanded).

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Image 293
IBM 4400 manual Always the Ascii ESC character. See also command