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The ink ribbon is a long roll the width of the print area positioned between the print chain and the paper. The roll comes in two parts: the feeder roll and take-up roll. The roll is constantly wound and rewound during printing. An IBM 1403, foreground, part of an IBM 7030 Harvest installation at the U.S. National Security Agency
Released in 1959, the IBM 1403 Model 1 is the first hammer based printer produced by IBM. It uses type slugs on a chain and is the first IBM printer to do so. In 1967 the IBM 1403 Model N1 is the first IBM printer to use a train rather than a chain. This change is made because it is not possible to achieve higher speeds using a chain.
IBM 1403 line printer, the classic line printer of the mainframe era. A line printer prints one entire line of text before advancing to another line. [1] Most early line printers were impact printers. Line printers are mostly associated with unit record equipment and the early days of digital computing, but the technology is still in use.
It was one of the largest producers of mainframe computers in the world, also producing related equipment including typewriters and printers. In the 1960s, the company introduced a range of mainframe computers that were well regarded for their performance running high level languages. These formed the core of the company's business into the 1970s.
Early mainframe printers were usually line printers. Line printers provide a limited set of commands to control how the paper is advanced when print lines are printed. The application writing reports, list, etc. to be printed has to include those commands in the print data. These single character print commands are called printer control characters
A typical configuration might consist of a S/360 model 30 with 32KB memory and the decimal instruction set, an IBM 2540 card reader/card punch, an IBM 1403 printer, two or three IBM 2311 disks, two IBM 2415 magnetic tape drives, and the 1052-7 console.
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