HP Designjet 4500 Printer series - Manual (Page 294)

Paper scrolling
When printing in Fast mode with highly curled paper, the paper may scroll when ejected to the
stacker tray. To avoid this problem, you are recommended to switch to Normal mode or use a paper
roll with a 3 inch core.
The trailing edge of the paper curling up
Use the Optimize for images setting: see Change the print quality.
The paper is not completely ejected
Check for any obstruction in the paper path, such as loose objects or other pieces of paper.
280 Chapter 21 The problem is... (stacker topics) [4500] ENWW
The
problem is...
(stacker topics) [4500]