Title:
画像形成装置
Document Type and Number:
Japanese Patent JP4679327
Kind Code:
B2
Abstract:
An image forming apparatus includes a recording head, and a drive pulse generator. The recording head includes a nozzle to discharge a droplet of recording liquid, a pressure-generating room to store the recording liquid and communicate with the nozzle, and a pressure-generating device to change a pressure condition of the recording liquid in the pressure-generating room. The drive pulse generator generates a drive pulse pattern having a plurality of drive signals generated sequentially. The plurality of drive signals are selectively applied to the pressure-generating device, and include at least a first drive signal and a second drive signal, generated sequentially. A discharge speed of a droplet discharged by applying a combination of the first and second drive signals to the pressure-generating device is set to be slower than a discharge speed of a droplet discharged by applying only the second drive signal to the pressure-generating device.
Inventors:
Takahiro Yoshida
Application Number:
JP2005297387A
Publication Date:
April 27, 2011
Filing Date:
October 12, 2005
Export Citation:
Assignee:
株式会社リコー
International Classes:
B41J2/045; B41J2/055; B41J2/205
Domestic Patent References:
| JP2003175601A | ||||
| JP2004122760A | ||||
| JP2002144570A | ||||
| JP8336970A |
Attorney, Agent or Firm:
Tomiho Inamoto