Homelite HL-1250, HL-P2500, HL-1660E, HL-2400CE, HL-1450, HL-1050, HL-1470N Glossary, Control code

GLOSSARY

Absolute plotting		A method of plotting in the HP-GL and HP-GL/2 graphics language where
		coordinates are specified relative to the origin of the coordinate system currently in
		use.
Anchor point		The top left-hand corner of the PCL picture frame. You can position this on the
		page using a PCL command.
Anisotropic scaling		A form of image scaling using the SC command in HP-GL and HP-GL/2 mode in
		which the user units can be of different sizes. Hence the entire graphics window
		can be used to display the image.
ASCII		The standard system for assigning number codes (0 ~ 255) to alphabetic, numeric
		and control code characters.
Attribute		A characteristic of a downloadable font or a character of a Downloadable font that
		is represented by a number of a fixed length.
Bitmap font		A font whose characters are defined as raster images. The characters that make up
		a bitmap font are of a fixed size.
Bold		A wider line thickness for typographical characters, used to make the text stand
		out, for example, in headings.
Calling a macro		A way of running a macro in which changes to the modified print environment are
		not retained when the macro has finished running.
Cartridge		A storage medium that you can insert into the printer cartridge slots. Cartridges
		can store fonts. The advantage of using cartridges is that they allow you to use
		more fonts without taking up printer memory space.
Cartridge font		A font that is stored on a cartridge. These are widely available commercially.
Character cell		The imaginary grid on which downloadable characters are designed.
Character code		A number assigned to a character that uniquely identifies it.
Character descriptor		A block of data that describes the characteristics of an individual character in a
		downloadable font, such as its width and height.
Character set		A selection of different characters. Characters sets normally include the alphabet
		in both upper- and lowercase, the digits' 0-9, punctuation marks, common
		mathematical symbols and a few other useful characters. There are also some
		specialized character sets that are used for specific applications like mathematics.
		A font is defined as having a particular character set.
Column		A vertical sub-division of the page whose width is equal to the HMI (horizontal
		motion index). The print position moves across the page one column width when
		any single character is printed ( in a monospaced font), or when a space character
		is printed ( in a proportionally spaced font). See also HMI.
Control code	An ASCII code that tells the computer to perform a particular function, such as a carriage return.

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