[let-er-kwol-i-tee] 
| (of computer printers and their output) pertaining to an appearance equal in legibility and resolution to copy typed on an electric typewriter: A letter-quality printer produces sharper copy than a dot-matrix model. |
| let·ter-qual·i·ty (lět'ər-kwŏl'ĭ-tē) adj. Of or producing clear, highly readable, sharply defined printed characters: a letter-quality computer printer; letter-quality output. |
ərˌkwɒl