Apparatus and process for electrostatically charging a recording material
AssigneeHoechst Aktiengesellschaft
InventorRoland Moraw
Life of this patent
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Abstract
Disclosed is a process and, to implement the process, an electrostatic charging apparatus comprising means for producing a corona discharge; a counter-electrode positioned below the discharge means adapted for supporting a recording material to be charged; means for supporting the counter-electrode, including a pair of opposed vertical side walls defining a guide channel of substantially rectangular cross-section along which the recording material can pass; and a pair of elongated strip-like members of electrically insulative material extending within the channel at least from the side walls laterally along the opposed marginal regions of the counter-electrode and longitudinally along the whole length of the counter-electrode.
Claims22
An electrostatic charging apparatus, comprising
- a. means for producing a corona discharge;
- b. a counter-electrode positioned below the discharge means adapted for supporting a recording material to be charged;
- c. means for supporting said counter-electrode, including a pair of opposed vertical side walls defining a guide channel of substantially rectangular cross-section along which the recording material can pass;
- and
- d. a pair of elongated strip-like members of electrically insulative material extending within the channel at least from the side walls laterally along the opposed marginal regions of the counter-electrode and longitudinally along the whole length of the counter-electrode.
Dependencies are inferred from the claim text.