Original ImageWriter
The first ImageWriter is a serial based dot matrix printer introduced by Apple Computer in late 1983.
The printer was essentially a re-packaged 9-pin dot matrix printer from C. Itoh Electronics (model C. Itoh 8510, with modified ROM and pinout), released the same year. It was introduced as a replacement for the earlier parallel-based Apple Dot Matrix Printer/DMP (also a C. Itoh model) and, while primarily intended for the Apple II, worked across Apple's entire computer product line. The ImageWriter could produce images as well as text, up to a resolution of 144 DPI and a speed of about 120 CPS. In text mode, the printer was logic-seeking, meaning it would print with the head moving in both directions while it would print only in one direction for graphics and Near Letter Quality. The ImageWriter was also supported by the Macintosh 128K computer, the original Mac. Apple wanted a graphical printer for the Mac, and had introduced the ImageWriter primarily to support the new machine. This permitted it to produce WYSIWYG output from the screen of the computer, which was an important aspect for promoting the concept of the GUI and, later, desktop publishing. Quality was adequate rather than startling. Another feature offered was a built-in self test, which could be invoked by holding down the form feed button while powering up the printer. The ImageWriter can be supported by Microsoft Windows-based PC's by using the included C. Itoh 8510 compatible driver.
The ImageWriter was succeeded by the ImageWriter II in late 1985.
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