Resources Contact Us Home
Ink replenishing system and method for ink jet printing apparatus

Image Number 7 for United States Patent #6386690.

A present invention provides an ink jet printing apparatus comprising an ink replenishing system which prevents ink leakage when a power supply from a main power source is cut off due to a power failure or the like while an ink reserving section of a print head of the ink jet printing apparatus is replenished with ink. The ink replenishing system is capable of properly managing the amount of ink in the ink reserving section. In the ink jet printing apparatus, when a power supply from a main power source is cut off after the start of an ink replenishing operation, power is supplied from a secondary power source so that ink replenishing control is executed depending on the power state of the secondary power source. If the ink replenishing operation has not been completed, after the main power source is recovered, the ink replenishing operation is performed again.

  Recently Added Patents
Humidity indicator and method for fabricating the same
Memory device, test operation method thereof, and system including the same
Methods of implanting dopant ions
Electrifying roller
Electronic component mounting machine and operating instruction method for the same
Nonvolatile semiconductor memory device and method of manufacturing the same
Process for preventing polymerization of cracked volatile products during pyrolysis and gasification
  Randomly Featured Patents
Support apparatus
Vehicle suspension apparatus
Novel cycloheptanes
Walk-on piano
Decoding using redundant packet selection information in wireless communications systems
Method and apparatus for measuring mass airflow
Defective memory component of a memory device used to represent a data bit in a bit sequence
Flat miniaturized antenna of a wireless communication device
Chromium phosphate catalyst
Device for calculating sheet number in a sheet feeder and method for calculating the same