User's Manual
Functional Overview
10-9
HP DesignJets 500, 510 and 800 Series Printers Service Manual
These are the key functions of the ISS:
 Ink Cartridges support and location.
 Prevents incorrect insertion of colors and inks.
 Provides electrical connection to the Ink Cartridges.
 Locates the supply end of the Tubes Assembly.
 Contains ink from leaks.
 Includes the ISS PCA which contains the backup EEROM.
Slots for the 
Ink Cartridges 
Pump Sensor 
Foam to contain 
Lifter 
ISS PCA 
ink from leaks 
Pump Motor 
(contains the 
backup EEROM)










