In 1978, Hitachi began shipments of their H-8192/8196-20 printers, which used an independently developed printer mechanism and had a printing speed of 7000line/min. In the following year, 1979, Hitachi shipped their H-8192/8196-30 printers which had a printing speed of 15200line/min, the highest in the world at that time.
In 1981, kanji (Chinese character) processing could only be done with large systems, and there was a growing need to realize such processing on small and mid-size systems. In that year, Hitachi began shipments of the H-8172 printer, with a printing speed of 2730line/min. This printer had a software interface compatible with high-end models, and improved cost performance.
|Printing system||Laser-based xerography|
|Printing speed (at 8LPI)||7000line/min||15200line/min||2730line/min|
|Character size||7,9,12 and 14 point, and the corresponding half-size characters|
|Shipment date||May 1978||July 1979||January 1981|