Epson Система команд EPSON ESC/P2 (Часть 6. Глоссарий и индекс) Features

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Glossary        G-1
Glossary 
application program (software)
A program designed to perform a specific function. Examples are word processing,
spreadsheet, and database programs.
ASCII
The American Standard Code for Information Interchange. ASCII codes are assigned to
particular characters and control codes used in operating computers and printers. The
ASCII code table is included in the Appendix.
attribute byte(s)
Parameters used when defining user-defined characters. Depending on the type of printer,
the attribute byte can determine the width of a character, beginning and ending columns,
and which pins to use in the print head.
automatic tear off
A printer feature that feeds the last page of a print job on continuous paper to a position
where paper can be conveniently torn off. When more print data is sent, the paper feeds
back to the loading position and begins printing on the following page. This feature is only
available when using a push tractor.
bar code
A group of vertical bars and spaces with varying widths that represent numbers and letters.
Bar codes are usually used to identify items such as commercial goods, products, and
books.
baseline
The imaginary line where the bottom of characters such as A and b are printed (descenders
on characters such as g or y descend below the baseline). The baseline on 24-pin printers is
located 20/180 inch below the print position; on 9-pin printers, 7/72 inch below the print
position.
baud rate
The rate at which data is transferred from one machine to another. The baud rate is
adjustable when using a serial interface. Some printers allow adjustment by DIP switch.
bidirectional printing
Printing in which the print head prints in both directions. This method increases the speed
of printing. See high speed printing.
binary
The base 2 number system. All numbers are represented by a 1 or 0.
binary command mode
A subset of binary printer commands used to control compressed raster graphics printing in
the extended raster graphics mode. These commands are available only in ESC . 2 TIFF
compressed mode.
bit
A digit (equal to 1 or 0) in the binary number system. A byte of data consists of 8 bits.