ImageWriter LQ (Letter Quality) was a 27-pin dot matrix printer introduced in 1987 by Apple Computer. The print quality was comparable to competing 24-pin dot-matrix printers, and offered graphics at 320 × 216 DPI. Unlike the ImageWriter II, the LQ was unreliable and noisy. Its printhead had a tendency to overheat with large multi-page prints and melt the glue holding the crystal that supports the pins.
Like the earlier ImageWriter II, the LQ could be networked on an AppleTalk network with the addition of a card. This, as well as guaranteed compatibility with both Apple II and Macintosh computers, made it popular in schools.
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