HP Designjet Z3100 Photo Printer series - Manual (Page 134)

6. Push the handle back to raise the carriage lid.
7. This gives you access to the printheads.
8. To remove a printhead, lift up the blue handle.
9. Using the blue handle, use steady force to disengage the printhead.
124 Chapter 9 Handling ink cartridges and printheads ENWW
Ink an
d prin
th
eads