The NCR 7892 Bi-Modal Scanner is responsive, versatile, rugged and easy to use. The Bi-Modal design reads in an omnidirectional mode for fast presentation and pass-by scanning, or in a single-line mode for bar codes that are in close proximity to each other. This feature allows new sales associates to become productive quicker and withstands the abuse that is common at retail checkouts. The NCR 7892 has fastest scan speed of any Bi-Modal, presentation scanner - an unsurpassed 20-line scan pattern. powered by a 5. 000 RPM motor, generating 83 complete scan patterns per second comprising 1. 667 scan lines. The depth of field of the scan pattern is seven inches, which avoids annoying and counter productive background reads.