Much like the ET-5320, which was the first compact printer with a horizontal paper feed, the ET-5320SII was a 24-pin horizontal printer that had a horizontal paper feed that aimed for handling simplicity of many kinds of media and stable operation. It was also made affordable by using a round platen. The ET-5320SII was sold as the ML320FB / 390FB in Europe and North America and as the OKI 5330SC / 5530SC in China.
|Print process||Serial dot-impact process|
|Operating noise levels||No more than 61 dB|
|Print speed||Kanji standard||45 characters/s|
|ANK standard||67.5 characters/s|
|Paper width||345mm（13.6 inches）|
|Duplicate function||Original +3|
|External dimensions (w x d x h)||512 x 275 x 130 mm|