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US 11,378,900 B2Granted
Electrical discharge surface treatment
AssigneeHP Indigo B.V.
InventorsDima Libster, Sergey Inotaev, Raia Slivniak, Eran Shiran, Ido Finkelman
Life of this patent
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Abstract
A transfer surface of an intermediate transfer member in a printing apparatus is treated using an electrical discharge surface treatment. The treatment of the intermediate transfer member is to reduce negative dot gain from a previous image in subsequent printing or increase wettability of a silicone-based release layer.
Claims17
A method comprising:
- for an intermediate transfer roller that is incorporated in a printing apparatus, treating a transfer surface of the intermediate transfer roller using an electrical discharge surface treatment to reduce negative dot gain from a previous image in subsequent printing.
A method comprising:
- removing an intermediate transfer member from a liquid electrophotographic printing apparatus;
- treating the intermediate transfer member with an electrical discharge surface treatment;
- and
- subsequently loading the intermediate transfer member into the liquid electrophotographic printing apparatus.
1 more element
A method comprising,
- for an intermediate transfer member that is incorporated in a printing apparatus, treating a transfer surface of the intermediate transfer member using an electrical discharge surface treatment to increase wettability of a silicone-based release layer comprising polydimethylsiloxane,
- wherein the electrical discharge surface treatment increases an amount of Si—COOH groups or an amount of Si—C—C—OH groups in the silicone-based release layer.
Dependencies are inferred from the claim text.