Canon BJ-30 manual 158

Buffer

A temporary storage area in the printer’s memory where data for output is held until it can be processed. See also Download buffer.

C

Canon extended mode

Canon’s unique printer control mode used by specific application software to print on the printer.

Centronics

An interface standard for parallel data transmission. The interface on this printer is a Centronics-type parallel interface.

Character set

A complete collection of the characters and symbols that constitute all the elements of a language or discipline (mathematics, for example), including punctuation and numbers, with a one-to-one correspondence to the ASCII codes 00-7F (hexadecimal). The printer uses these characters to determine its printing and nonprinting activities after it receives data from the host computer.

Code page

A set of 256 graphic designs (characters) associated with unique code values from 0 through 255. Code Page 437 is USA and Code Page 850 is Multilingual.

Commercial number 10 (COM10)

A common letter-size of business envelope (9.5 x 4.1 inches) in the United States.

Condensed

A text print mode that produces a reduced character size (approximately 60% of the width of the original pitch). The printer can produce condensed text (17 cpi) for 10 cpi and condensed text (20 cpi) for 12 cpi.

Control code

Special data that invokes nonprinting functions of the printer, such as line feed or carriage return. In the ASCII chart, control codes are represented by decimal numbers 0-31, 127, 128, 159, and 255.

Courier

One of the fonts resident in this printer. Courier can be printed either fixed- space or proportionally spaced.

cpi

Characters per inch. A unit of measurement relevant to a fixed-space font. Because all characters have the same width, you can calculate the number of characters printed per inch.

158 Glossary