Zebra Technologies ( ZBRA), a manufacturer of bar code printers, said second-quarter earnings rose 8.7%. The Vernon Hills, Ill.-based company earned $27.7 million, or 39 cents a share, in the quarter, compared with $25.5 million, or 35 cents a share, a year ago. Analysts polled by Thomson First Call were expecting earnings of 37 cents a share. Second-quarter revenue rose 6.1% from a year ago to $187.4 million. Analysts were expecting revenue of $184.9 million in the most recent quarter. The company expects to earn 34 cents a share to 39 cents a share in the third quarter on revenue of $180 million to $190 million. Analysts were expecting earnings of 39 cents a share on revenue of $188 million in the third quarter. "Zebra's extended global reach is translating into high growth in international regions. We are capturing more opportunities in healthcare, route accounting, retail and other vertical market applications. With a much more diversified business across products, channels and markets, we remain optimistic about our growth prospects and confident in our abilities to build greater stockholder value,'' the company said. Second-quarter gross profit rose marginally by 0.5% from a year ago to $89.5 million, however, gross margin declined 269 basis points to 47.8%. Operating profit for the quarter rose 6.8% to $37.8 million and operating margin increased 13 basis points to 20.2%. By segment, second-quarter revenue from hardware products rose 3.5% from a year ago to $140.6 million, revenue from supplies jumped 19.1% to $39.4 million, and revenue from shipping and handling increased 6.6% to $1.5 million. However, revenue from service and software segment fell 6.5% to $6.2 million. Shares rose 96 cents to $31.95.