Patent ID: 9327526
Filing Date: 2016-05-03
CPC Classification: B41J

Claim Text:
1. A system for reducing electrostatic fields underneath print heads, the system comprising: one or more print heads for depositing ink onto a surface of a media substrate in one or more ink deposition areas; a media transport for moving the media substrate along a media path in a process direction past the one or more print heads, wherein the media transport comprises a media transport belt, and wherein the media has an electrostatic field; a conductive platen contacting the media transport belt, wherein the media transport belt is disposed between the conductive platen and the one or more print heads; one or more apertures in the conductive platen, wherein each aperture extends lengthwise in a trans-process direction between a first end and a second end and widthwise in the process direction between a first side and a second side; two electrically isolated biased electrodes positioned at the first and second sides of each of the one or more apertures to define one or more openings therebetween, wherein the one or more openings are in registration with the locations of the one or more ink deposition areas of the one or more print heads; and one or more voltage sources for providing a voltage to the two electrically biased electrodes in each of the one or more apertures, wherein the voltage is provided to the electrically biased electrodes to reduce the electrostatic field on the surface of the media receiving the ink.