Charger for a photoreceptor
AssigneeIndigo N.V.
InventorsBenzion Landa, Josef Rosen
Life of this patent
Estimating the term…
Abstract
Duplex printing apparatus for printing on two sides of a sheet, the apparatus comprising: an impression roller on which the sheet is held during printing; an imager which prints an image on a first side of the sheet while it is being held on the impression roller; and a sheet inverter which removes the sheet from the impression roller, inverts the sheet and returns it to the impression roller for printing on a second side of the sheet by the imager, wherein the sheet is held on said impression roller referenced to a first edge thereof during the printing of the first side thereof and is also held on the impression roller referenced to said first edge during printing of the second side thereof.
Claims22
A charger for a photoreceptor comprising:
- at east one electrified charging surface adjacent the photoreceptor;
- a source of gas which flows the gas past the charging surface toward the surface of the photoreceptor;
- and
- at least one gas outlet adjacent the photoreceptor, through which gas is drawn from the surface of the photoreceptor, such that ionized gas produced by the charging surface is substantially removed from the photoreceptor surface without being released to the surroundings.
A charger for a photoreceptor comprising:
- at least one electrified charging surface adjacent the photoreceptor;
- a source of gas which flows the gas past the charging surface toward the surface of the photoreceptor;
- and
- at least one gas outlet adjacent the photoreceptor and the at least one charging surface, through which air is drawn from the surface of the photoreceptor, such that ionized air produced by the charging surface is substantially removed from the photoreceptor surface without being released to the surroundings,
- wherein the at least one gas outlet draws said ionized gas directly from said surface and not via said charging members.
Dependencies are inferred from the claim text.