Title:
A driver circuit and a method of an ink jet print head
Document Type and Number:
Japanese Patent JP6199876
Kind Code:
B2
Abstract:
A drive circuit for repetitively energising a printhead (10) to eject drops of ink and a method of operating the drive circuit are described. The printhead h multiple nozzle channels each having a respective capacitance. The drive circuit includes a first switching element (S1) connected to couple a drive connection of the printhead to a first connection of a power supply (V1) via a first inductor (L1) to provide a charge path for current to charge the capacitance of at least one nozzle channel to a desired operating voltage. The drive circuit further includes a second switching element (S2) connected to couple a drive connection of the printhead to a second connection of the power supply (V1) via a second inductor (L2) to provide a discharge path for current to discharge the capacitance of said at least one nozzle channel to a desired inter-pulse voltage.
Inventors:
Clear, Hamilton Buchanan
Application Number:
JP2014542936A
Publication Date:
September 20, 2017
Filing Date:
November 23, 2012
Export Citation:
Assignee:
Inca Digital Printers Limited
International Classes:
B41J2/14; B41J2/045
Domestic Patent References:
| JP2001129989A | ||||
| JP2007118307A | ||||
| JP2008023813A | ||||
| JP2011046030A |
Foreign References:
| US6271618 |
Attorney, Agent or Firm:
Takayuki Hirose
Daisuke Seki
Daisuke Seki