Abstract
We have developed a multi-channel print head for electrostatic inkjet printers using a microfabrication process. Its performance was assessed in gray-scale printing tests. The print head recorded 10-60μm dots on print media as the width of the pulse signal varied from 50 to 400μs. The optical density varied from approximately 0.3 to 1.2 on the gray scale print samples, indicating that our print head can achieve tone control by dot size. The variance of the dot size recorded by each electrode (channel) was found to be±9.9μm (±16.5%) at the maximum dot size (60μm). Finally, the print head was used to print a full color image using yellow, magenta and cyan ink. It successfully produced a full color sample with a resolution of 600 dpi.
