Ink jet printer, controlling method for an ink jet printer,...

Details Ink jet printer, controlling method for an ink jet printer,... Ink jet printer, controlling method for an ink jet printer,...

2005-11-29

2008-08-26

Nguyen, Lam S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S010000, C347S005000

Reexamination Certificate

active

07416269

ABSTRACT:
An ink jet printer is provided with an ink jet head and a controller. The ink jet head comprises a nozzle, an ink chamber communicating with the nozzle, a pressure chamber located between the nozzle and the ink chamber, and an actuator that changes volume of the pressure chamber. The controller controls the actuator to perform a first performance. The first performance includes a first change in which the volume of the pressure chamber increases and a second change in which the volume of the pressure chamber decreases. A period from the first change to the second change is 2/3×AL or below, or within a range between (2s−1/2)×AL and (2s+2/3)×AL, s is a positive integer. Discharging speed of ink discharged from the nozzle is substantially maximum if the period from the first change to the second change is set to AL.

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