Method and apparatus for sensing and maintaining a gap between an ink jet printhead and a print medium

摘要

An apparatus positions an ink jet printhead relative to a print medium onto which the printhead jets ink. A conduit is attached to the printhead and has an opening disposed in opposition to the print medium. An air-moving device moves air through the conduit. A pressure-sensing device senses pressure within the conduit. A gap-adjusting assembly moves the printhead and/or the print medium dependent upon the pressure sensed by the pressure-sensing device.