75abd686_HP_8250_printer__Component
[Features] Each factory installed printhead contains 3,900 nozzles on a single piece of silicon and places millions of ultra-small drops per second on the media. The onboard reservoir provides a continuous supply of ink to the printhead. The reservoir has six chambers, one for each colour. Each chamber has an internal regulator to supply ink to the printhead at constant pressure and prevent ink from escaping through the nozzles. Each chamber has a microporous filter to trap particulates before the ink reaches the drop generators. [Benefits] Precise nozzle alignment and drop volume measurement ensure exceptional photo prints. The onboard reservoir protects the printing system and with genuine HP supplies, ink is still available for printing after a cartridge is exhausted. The printer will not stop in the middle of a page. [Component] 
Factory installed printhead
I n k c a r t r i d g e s
P u m p
I n k s e n s o r
F a c t o r y i n s t a l l e d p r i n t h e a d
V e n t c h a m b e r
I n k s u p p l y s t a t i o n
HP 8250 printer
Component