HP 16V - Manual (Page 108)

Periodic Routine Maintenance
3. Lower the print unit into
the printer. Grasp the print
unit by its green handles
with the green drum surface
facing you.
First, slide the print unit
straight down the ends of
the drum shaft along the
grooves on the sides of the
printer. Then, slide the
print unit at a 45 degree
angle toward back of the
printer.
When handling the print
unit, never allow its green
surface to touch anything,
since it can be easily
scratched.
User’s Manual
4-13