High nozzle density printhead ejecting low drop volumes
First Claim
Patent Images
1. A printhead assembly for an inkjet printer, the printhead assembly comprising:
- a printhead substrate having a plurality of drop generators formed thereon at an area density of at least six drop generators per square millimeter, wherein at least one of the plurality of drop generators emit droplets having a drop volume of about 1 pico liter; and
,a fluid source providing fluid to the drop generators, the fluid having a viscosity in the range of 0.7 to 15 centipoise at a temperature of 25°
C.
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Abstract
A printhead assembly that has a printhead substrate having a plurality of drop generators formed thereon at an area density of at least six drop generators per square millimeter. The droplets emitted have a drop volume less than 8 pico liters. The fluid forming the droplets has a viscosity in the range of 2 to 5 centipoise. A high area density of drop generators and relatively low droplet volume of water-based ink provides high print resolutions and energy efficient operation.
68 Citations
6 Claims
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1. A printhead assembly for an inkjet printer, the printhead assembly comprising:
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a printhead substrate having a plurality of drop generators formed thereon at an area density of at least six drop generators per square millimeter, wherein at least one of the plurality of drop generators emit droplets having a drop volume of about 1 pico liter; and
,a fluid source providing fluid to the drop generators, the fluid having a viscosity in the range of 0.7 to 15 centipoise at a temperature of 25°
C. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification