HP Designjet 4000 Printer series - Manual (Page 87)

7. Carefully insert the leading edge of the roll above the black roller.
Warning 1 Take care not to touch the rubber wheels on the platen while
loading paper: they may rotate and trap skin, hair, or clothing.
Warning 2 Take care not to push your fingers inside the printer's paper
path. It is not designed to accommodate fingers, and the results may be
painful.
8. Wait until the paper emerges from the printer as shown below.
Note If you have an unexpected problem at any stage of the paper
loading process, see “The problem is the paper cannot be loaded
successfully” on page 209.
85
How
do
I handle
paper?