Liquid jet recorder

Abstract

A liquid jet recorder having at least one jet nozzle which is connected to a pressure means conduit for the ejection of an electrically-conductive recording liquid onto a recording carrier; having at least one control electrode encompassing the liquid jet which is disintegrating into drops, which is formed of porous material which communicates with a suction conduit for the recording liquid; and a signal source adapted to be switched between the control electrode and the liquid jet for charging of the drops so that the latter mutually repel each other and disintegrate into a vapor cloud adapted to be aspirated into the control electrode. The recorder includes a suction pump, including circuitry which will activate the suction pump prior to the commencement of a recording. In the liquid jet recorder, any possible residues of the recording liquid adhering to the control electrode are aspirated prior to commencement of a recording. Thus, any dirtying of the recording carrier by means of such residues is no longer possible. Delay means may be provided in the novel circuitry whereby, after completion of a recording sequence, the residues of the recording liquid on the control electrode are collected so as to prevent the dirtying of the recording carrier.

Dependencies are inferred from the claim text.