Functional Overview
10-4
HP DesignJet 5000 Series Printers Service Manual
Paper Axis
The Paper Axis determines the motion of the media through the
printer. Its main parts are:
n Paper-Axis Motor - provides traction to the Overdrive.
n Center Platen and Overdrive - controls the printing path and
expansion of the media.
n Pinch-wheels and Lever - “captures” the media and provides
added friction.
n Center Guide and Entry Roller - feeds media through the paper
path.
n Vacuum Fans - provides the required vacuum to maintain the
media flat over the Center Platen.
The diagram below illustrates the air flow created by the Vacuum
Fans.