Invention Grant
- Patent Title: Liquid ejecting apparatus
- Patent Title (中): 液体喷射装置
-
Application No.: US14192635Application Date: 2014-02-27
-
Publication No.: US09174437B2Publication Date: 2015-11-03
- Inventor: Hiroyuki Hagiwara , Haruhisa Uezawa
- Applicant: Seiko Epson Corporation
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: JP2013-038454 20130228
- Main IPC: B41J2/07
- IPC: B41J2/07 ; B41J2/045

Abstract:
Provided is a liquid ejecting apparatus including a first temperature sensor for detecting ink temperature and a second temperature sensor for detecting ambient temperature of a liquid ejecting head, in which a controller for controlling discharge of the ink generates a driving signal including a discharge voltage which is used for, based on a temperature detected by the first temperature sensor, discharging ink droplets through nozzle openings and a fine-oscillation voltage which is used for finely oscillating meniscuses of the ink without discharging the ink droplets and corresponds to the discharge voltage. Furthermore, the controller sets a coefficient in accordance with a temperature difference between the ink temperature and the ambient temperature and controls an energy level of the fine oscillation by applying the fine-oscillation voltage, based on the coefficient. In addition, the controller causes the discharge voltage to be applied to a pressure generation unit corresponding to the nozzle openings through which the ink droplets are discharged and causes the fine-oscillation voltage to be applied to a pressure generation unit corresponding to the nozzle openings through which the ink droplets are not discharged.
Public/Granted literature
- US20140240386A1 LIQUID EJECTING APPARATUS Public/Granted day:2014-08-28
Information query
IPC分类: