Search results
Results from the WOW.Com Content Network
The main difference between the two sets of printer control characters might be the portability of ASA control characters versus the hardware dependency of machine control characters. The fact that the ASA controls were space before write , while the machine controls were space after write could require some data streams to be converted.
Later printers such as the IBM 3211 and IBM 4248 did away with the physical carriage control tape and used an electronic Forms Control Buffer (FCB) instead. ASA carriage control characters are still used for printer output from mainframe applications and software today. They are interpreted by drivers and other software before being printed on ...
Printing control characters were first used to control the physical mechanism of printers, the earliest output device. An early example of this idea was the use of Figures (FIGS) and Letters (LTRS) in Baudot code to shift between two code pages. A later, but still early, example was the out-of-band ASA carriage control characters. Later ...
In computing, the carriage return is one of the control characters in ASCII code, Unicode, EBCDIC, and many other codes.It commands a printer, or other output system such as the display of a system console, to move the position of the cursor to the first position on the same line.
Form feed is a page-breaking ASCII control character. It directs the printer to eject the current page and to continue printing at the top of another. Often, it will also cause a carriage return. The form feed character code is defined as 12 (0xC in hexadecimal), and may be represented as Ctrl+L or ^L.
The IBM 1132 was the last printer manufactured by IBM to use this technology. IBM 1403 printer opened up as it would be to change paper. The print chain is behind the wide black ribbon, hinged open to the right, which is the width of the paper. Also note carriage control tape in upper right.
Line printers frequently used a variety of discharge brushes and active (corona discharge-based) static eliminators to discharge these accumulated charges. Many printers supported ASA carriage control characters [citation needed] which provided a limited degree of control over the paper, by specifying how far to advance the paper between ...
In 1973, ECMA-35 and ISO 2022 [18] attempted to define a method so an 8-bit "extended ASCII" code could be converted to a corresponding 7-bit code, and vice versa. [19] In a 7-bit environment, the Shift Out would change the meaning of the 96 bytes 0x20 through 0x7F [a] [21] (i.e. all but the C0 control codes), to be the characters that an 8-bit environment would print if it used the same code ...