HP Designjet 4000 Printer series - Manual (Page 107)

4. Slide the drawer and cartridge into the slot until it locks into position.
If you have difficulty, see “The problem is I cannot insert an ink
cartridge” on page 207.
5. When all cartridges have been inserted, close the door (push it until it clicks shut).
6. The front panel display confirms that all cartridges have been correctly inserted.
105
How do
I
handle
the
ink
system?