US 12,269,254 B2
Dielectric heating apparatus and printing system
Tadashi Aizawa, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jan. 30, 2023, as Appl. No. 18/161,251.
Claims priority of application No. 2022-012606 (JP), filed on Jan. 31, 2022.
Prior Publication US 2023/0241904 A1, Aug. 3, 2023
Int. Cl. B41J 11/00 (2006.01); B41J 2/01 (2006.01); H05B 6/46 (2006.01); H05B 6/54 (2006.01); H05B 6/62 (2006.01)
CPC B41J 11/00216 (2021.01) [B41J 11/0021 (2021.01); B41J 11/00242 (2021.01); H05B 6/46 (2013.01); H05B 6/54 (2013.01); H05B 6/62 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A dielectric heating apparatus for heating a first ink and a second ink that adhere to a medium, the first ink containing carbon black, the second ink not containing carbon black, the dielectric heating apparatus comprising:
a first electrode unit and a second electrode unit as electrode units configured to heat the first ink and the second ink, the first electrode unit including a first electrode and a second electrode that face the medium, and the second electrode unit including a third electrode and a fourth electrode that face the medium;
a first voltage application unit configured to apply an AC voltage having a frequency of 300 MHz or more and 300 GHz or less to the first electrode and the second electrode; and
a second voltage application unit configured to apply an AC voltage having a frequency of 100 KHz or more and less than 300 MHz to the third electrode and the fourth electrode,
wherein the first electrode unit heats the first ink and the second ink after the second electrode unit heats the first ink and the second ink.