Positive Sensor Assurance Device for a Dot Band Printer
Original Publication Date: 1988-Feb-01
Included in the Prior Art Database: 2005-Feb-14
In metal print band technology, it is known to use bristle brushes to remove contaminating material from the band. In the prior art, such as the device used on the IBM 4234 Dot Band Printer, the brushes were used to clean the print elements and the emitter slots [*]. This article describes an improvement to that prior device that eliminates the need to clean the print elements. The figure schematically depicts the invention in which one or more brushes 1 (the preferred embodiment uses two brushes) are mounted on holder assembly 2 at an angle of 15 degrees. As the print band travels in the direction D, the brushes rotate in the direction shown, removing accumulated debris from emitter slots 3.