Effects of Adjacent Printer Heads in Electrostatic Inkjet Printer

In order to develop a high speed printing system, the system must be operated in high frequency, and must have multiple heads in rows. Through the present simulation, it was found that successive shots of high frequency (about 2kHz) were possible. By additional optimization of pulse shape and by decreasing the delay time for switching voltage to rise up, it will be possible to realize much higher speed printer. Then, the effects of adjacent printer heads in a row were investigated. It was found that a distance of 254µm (corresponding to 100dpi) was still not enough to achieve stable and well-controlled ink transportation if no electrostatic barriers in between were assigned in the present head design.Copyright © 2002 by ASME