August 31, 2010 - An extensive test conducted by Buyers Lab for HP found that certain papers can cause reliability and image quality problems in laser printers. The test encompassed nearly 2.5 million pages on 50 printers with five paper types. All 30 of the printers run with papers carrying the ColorLok® logo, which signifies that they meet a range of quality standards, produced 50,000 pages—a combined total of 1.5 million pages—with no reliability or image quality issues.
