Issue 27, 2018, Issue in Progress

Accessing individual 75-micron diameter nozzles of a desktop inkjet printer to dispense picoliter droplets on demand

Abstract

Desktop inkjet printers are ubiquitous and relatively inexpensive among the variety of available printers. These inkjet printers use an array of micro fluidic pumps, nozzles based on piezoelectric actuation, to dispense individual picoliter volume ink droplets at high speed. In this paper, we show that individual pumps in desktop printers can be accessed to dispense droplets on demand. Access was obtained using the printer’s command language programming. A detailed description of the access procedure is discussed. Droplets were printed on a paper as it rolled underneath the printhead, and with a minor hardware modification, they were also printed on a glass substrate. With this access, individual droplets were deposited, the smallest having an average diameter of 62 μm with a standard deviation of 6.9 μm, with a volume of ∼4 pL. From the intended position, the droplets had a standard deviation of 5.4 μm and 8.4 μm in the vertical and horizontal directions, respectively. The ink droplets were dispensed at a rate of 7.1 kHz. A circularity factor of 0.86 was obtained indicating that the dispensed droplets are of good quality. By replacing the ink in the cartridges with liquids of choice (e.g. cells, proteins, nanoparticles etc.), we believe it provides an opportunity for low-cost, high-speed, high-precision, picoliter volume printing for a variety of applications.

Graphical abstract: Accessing individual 75-micron diameter nozzles of a desktop inkjet printer to dispense picoliter droplets on demand

Supplementary files

Article information

Article type
Paper
Submitted
24 Jan 2018
Accepted
28 Mar 2018
First published
18 Apr 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 14765-14774

Accessing individual 75-micron diameter nozzles of a desktop inkjet printer to dispense picoliter droplets on demand

R. Waasdorp, O. van den Heuvel, F. Versluis, B. Hajee and M. K. Ghatkesar, RSC Adv., 2018, 8, 14765 DOI: 10.1039/C8RA00756J

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