HP Designjet 4000 Printer series - Manual (Page 105)

8. The cartridge comes out, in its drawer.
9. Lift the cartridge out of its drawer.
Note 1 Avoid touching the end of the cartridge that is inserted into the
printer, as there may be ink on the connection.
Note 2 Avoid storing partially used ink cartridges on their ends.
10. The front panel display will identify the missing ink cartridge.
103
How do
I
handle
the
ink
system?