The Galaxy Printhead PH 256/80 HM is an 80pL ink jet printhead offering complete fluid support and signal processing capabilities for a wide range of jetting fluids.
 
We recommend to change the head cables when installing a new printhead.
 
The following items are expressly excluded from warranty coverage:
defects related, in any way, to the use of non-original inks
clogged, missing or deviated nozzles
defects related to misuse, abuse, accident, neglect, lack of use, or improper storage when not in use for extended periods
defects related to failure to perform periodic maintenance as specified in the user documentation; operation for unintended purposes
defects related to improper loading of media
all other defects, failures or damage not considered manufacturing defects
defects related to third-party applications, software, parts, components, or peripheral devices, including any bulk ink system.
defects that are merely cosmetic in nature.
 
Specifications:
80 picoliter calibrated drop size
Resolutions up to 450 dpi
Number of addressable jets : 256
Nozzle spacing: 254 microns [0.010 in.]
Nozzle diameter: 52 microns
Calibrated drop size: 80 picoliters
Adjustment range for drop size: 75 - 85 picoliters
Drop size variation, 1 sigma: 5%
Jet straightness, 1 sigma: 5 mrad [0.29°]
Nominal drop velocity: 8 m/sec
Drop velocity variation, 1 sigma: 5%
Crosstalk, maximum: 5%
Operating temperature range: up to 125°C [257°F]
Fluid viscosity range (at jetting temperature): 8 - 20 cP
Compatible jetting fluids: Hot melt
 Maximum operating frequency: 12 kHz
Electrical interface: RS-422
Ink filter: 8 microns absolute
Meniscus vacuum : 6.3 - 8.7 mBar [2.5 - 3.3 in. wg]
Lung vacuum: 750 mBar [22 in. Hg gage]
The head comes with manufacturer warranty
Country of origin : Japan