Lexmark’s (LXK) third-quarter earnings exceeded the Zacks Consensus Estimate by 20 cents and revenues by 6.7%.   Revenues of $958 million increased 6% on a sequential basis, but declined 15.3% compared to the year-ago quarter. Strong customer demand was responsible for the sequential improvement in revenue, which also exceeded the company’s expectation of a revenue decline in the recently concluded quarter.   Printing Solutions and Services Division revenues came in at $654 million, up 5% sequentially, but down 14.0% on a year-over-year basis. Imaging Solutions Division revenues was $304.0 million, up 8.0% on a sequential basis, but down 18.0% compared to the year-ago quarter.   Gross profit margin was 32.7% almost flat compared to 32.5% reported in the year ago quarter. On a non-GAAP basis, the company generated a gross margin of 33.9% compared to 34.1% reported in the year-ago quarter. Operating margin stood at 2.5% (including $51.0 ...