I have removed my cartridges in order to agitate. One cartridge was not recognized. I have inserted it a few times and still is not recognized. Then I thought it might me the chip needed to be reset. The chip resetter turned red but never turned green. I am in the process of replacing the batteries in the chip resetter. I have read you description when someone else had a similar problem with a 3880. Is the same process the process which should be followed for the 9800? I have ordered a set of chips in order to help correct this and other problems in the future.