Patent ID: 7520579
Filing Date: 2009-04-21
Classification: B41J

Abstract:
1. An image forming apparatus, comprising: a recording head, comprising: a drive pulse generator configured to generate a drive pulse pattern having a plurality of drive signals generated sequentially, the plurality of drive signals being selectively applied to the pressure-generating device, wherein the plurality of drive signals include at least a first drive signal and a second drive signal, generated sequentially, and 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 the second drive signal alone, without applying the first driving signal, to the pressure-generating device, wherein a drive signal applied to the pressure-generating device causes the pressure-generating room to vibrate with a characteristic vibration cycle Tc, and wherein the first drive signal is applied at a timing T