US 12,291,019 B2
Drying device and recording device
Hiroto Tomioka, Shiojiri (JP); and Tadashi Aizawa, Matsumoto (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Aug. 30, 2022, as Appl. No. 17/823,332.
Claims priority of application No. 2021-140969 (JP), filed on Aug. 31, 2021.
Prior Publication US 2023/0066326 A1, Mar. 2, 2023
Int. Cl. B41J 11/00 (2006.01); H05B 6/54 (2006.01); H05B 6/62 (2006.01)
CPC B41J 11/002 (2013.01) [H05B 6/54 (2013.01); H05B 6/62 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A drying device disposed at a predetermined interval from a recording medium and including a heater configured to dry liquid applied to the recording medium with a high frequency wave, wherein
the heater includes:
a first electrode coupled to a power supply that outputs the high frequency wave; and
a second electrode coupled to the power supply that outputs the high frequency wave and disposed to be separated from the first electrode at a predetermined interval, the second electrode, when viewed from a normal direction of the recording medium, surrounds the first electrode and has a hollowed elliptical shape, the second electrode being configured to prevent induction of a corona discharge, and
a distance between an end of the first electrode and the recording medium is longer compared with a distance between a center of the first electrode and the recording medium.