Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
INK CARTRIDGE NEGATIVE PRESSURE CONTROL DEVICE AND INKJET PRINTER
Document Type and Number:
WIPO Patent Application WO/2019/179018
Kind Code:
A1
Abstract:
An ink cartridge negative pressure control device and an inkjet printer, the ink cartridge negative pressure control device comprising: a head (40), an ink inlet cartridge (10), an ink outlet cartridge (20), an ink inlet cartridge negative pressure controller (11), an ink outlet cartridge negative pressure controller (21), a main controller (30), and a switching controller (31). The main controller (30) is connected to the switching controller (31), and the switching controller (31) is connected to the ink inlet cartridge negative pressure controller (11) and the ink outlet cartridge negative pressure controller (21) respectively. The main controller (30) is used to send to the switching controller (31) a negative pressure analog quantity signal and a switching signal; and the switching controller (31) is used to determine a target negative pressure analog quantity according to the negative pressure analog signal and the switching signal, and send the target negative pressure analog quantity to the ink inlet cartridge negative pressure controller (11) and the ink outlet cartridge negative pressure controller (21), thereby achieving redundant control of the negative pressure of the ink cartridge by the switching controller (31). When the main controller (30) fails or an abnormality such as a power failure occurs to the main controller, the switching controller (31) can switch from working negative pressure to maintaining negative pressure, thereby avoiding a large amount of ink leakage of the head due to the loss of the negative pressure in the ink cartridge.

Inventors:
SI ZHITAO (CN)
GUO SHUAI (CN)
LIN SEN (CN)
QIAO FENGYU (CN)
Application Number:
CN2018/101768
Publication Date:
September 26, 2019
Filing Date:
August 22, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KEDA CLEAN ENERGY CO LTD (528313, CN)
International Classes:
B41J2/175
Foreign References:
CN102862393A2013-01-09
CN204547353U2015-08-12
CN206826182U2018-01-02
US20090051722A12009-02-26
US20160075144A12016-03-17
JP2013022851A2013-02-04
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (8F-6, Bldg. A Winland International Center,No. 32 Xizhimen North Street, Haidian District, Beijing 2, 100082, CN)
Download PDF: