Sharp PA 3100 series (second generation) portable e.t.s were first released in 1989. Models include but may not be limited to PA-3100 II, PA-3100 S, PA–3110 II, PA-3140 II, 3140 S.
Earlier PA 3100 series (first generation) models (PA-3100, 3100 E, 3110, 3120) have a slightly different design, notably narrower platen knobs and a narrower margin scale/front facia.
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