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Abstract
The surface heating fuser, required in the EP printer from the energy saving standpoint, sometimes causes the horizontal banding image. This type of banding is not seen with conventional fuser such as the heat roller type. We found that the root cause of this phenomenon is the AC current leakage from fuser to transfer area. This paper reports that the RC circuit model between fuser and transfer area can simulate this phenomenon well. According to this model, solutions are as follows;1. To increase the reactance of fuser heater and film, preventing the AC current leakage to the media.2. To add the by-pass circuit from fuser film inside to the ground, preventing the AC current leakage to the media.3. To add the by-pass circuit from pressure roller to the ground, preventing the AC current leakage to the media.
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