Invention Grant
- Patent Title: Detecting ink states for printers based on monitored differential pressures
-
Application No.: US16650256Application Date: 2017-09-25
-
Publication No.: US11235582B2Publication Date: 2022-02-01
- Inventor: Matthew J. Janssen , James R. Cole , James W. Ring
- Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
- Applicant Address: US TX Spring
- Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
- Current Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
- Current Assignee Address: US TX Spring
- Agency: Trop Pruner & Hu PC
- International Application: PCT/US2017/053180 WO 20170925
- International Announcement: WO2019/059940 WO 20190328
- Main IPC: B41J2/175
- IPC: B41J2/175
Abstract:
A technique includes coupling outlets of a first ink supply and a second ink supply together to provide ink to a printhead of a printer; and pressurizing the first ink supply and the second ink supply with air so that an air pressure of the first ink supply has a different air pressure than an air pressure of the second ink supply. The technique includes monitoring an ink-to-air differential pressure of the first ink supply or the second ink supply; and detecting an ink state for the printer based on the monitored ink-to-air differential pressure.
Public/Granted literature
- US20210197576A1 DETECTING INK STATES FOR PRINTERS BASED ON MONITORED DIFFERENTIAL PRESSURES Public/Granted day:2021-07-01
Information query
IPC分类:
