CASSETTE WITH INTEGRAL ELECTRODE FOR MARKING ELECTRIC RECORDING PAPER CONTAINED THEREIN

摘要

A cassette in an electrolytic graphic recorder has thin plastic walls forming a compartment for a supply roll of moist electrolytic recording web and an integral flattened tube extending to a web exit slit. The walls of the tube are spaced by approximately the thickness of the web which therefor moisture seals the supply compartment. An L-shaped blade electrode attached on top of the tube has a recording edge extending across the exit slit into opposition with a scanner with which it cooperates to record on the web as it is drawn from the supply compartment through the exit and between the electrode and scanner. Register means on the recorder engage terminal portions of the cassette electrode and position the electrode in opposition to the scanner as well as electrically connecting the electrode to a marking signal terminal on the recorder.