Hewlett-Packard Indigo B.v.

Sagi Daren

Michel Assenheimer

Martin Chauvin

Uri Lidai

Assaf Berman

Dror Kella

Shmuel Borenstain

The invention relates to a method for adjusting a gap in a printing system in which a first roller and a second roller are provided, wherein at least one of said first roller and said second roller comprises a seam, said seam corresponding to a variation of the diameter of said first roller and said second roller, respectively, along a circumference thereof. An interaction zone is provided, wherein said second roller is in rolling contact with said first roller under pressure, said interaction zone defining a gap for inserting a media to be printed. A size of said gap is controlled by varying a relative position of said first roller and said second roller when said at least one seam passes through said interaction zone, and said gap is adjusted in accordance with a length of said media to be printed and/or in accordance with a length of an image to be printed.

Method and system for adjusting a gap between rollers of a printer in accordance with a media or image length

There is disclosed an apparatus which may comprise a transfer member and a photoconductor. The apparatus may be operable to apply a potential difference between the transfer member and the photoconductor and the photoconductor may be operable to transfer a layer of electrostatic printing material from the photoconductor to the transfer member at a transfer region under the action of the applied potential difference. According to the present disclosure, the apparatus may further comprise a humidity raising device which may be operable to raise the relative humidity of the transfer region above an ambient level. A printer and a method of facilitating transfer of electrostatic printing material are also disclosed.

Apparatus, printer and method for electrostatic printing

The invention relates to a method for adjusting a gap in a printing system in which a first roller and a second roller are provided, wherein at least one of said first roller and said second roller comprises a seam, said seam corresponding to in a variation of the diameter of said first roller and said second roller, respectively, along a circumference thereof. An interaction zone is provided, wherein said second roller is in rolling contact with said first roller under pressure, said interaction zone defining a gap for inserting a media to be printed. A size of said gap is controlled by varying a relative position of said first roller and said second roller when said at least one seam passes through said interaction zone, and said gap is adjusted in accordance with a length of said media to be printed and/or in accordance with a length of an image to be printed.

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Nes Ziona, Israel

Sagi Daren