Oce Arizona 200 GT User Manual page 130

Roll Media Option Hardware
Component
8) Media Core Locks
9) Media Tension Bar
10) Media Edge Detector
11) Capstan
12) Platen
13) Gimbal
130 Chapter 7 - How to Operate the Roll Media Option
Function
These locks hold the media core in place on the media
shafts. Use the supplied 5mm hex key to lock and unlock
the media core at the right end of the media shaft.
Provides constant tension for loaded media (located be-
hind the lower media shaft). The bar provides tension to
ensure steady movement of the media.
An optical sensor on the bottom of the carriage that de-
tects the edge of the media. Detection of the media edge
occurs over the media guide between the capstan and the
platen. The media edge detection sensor provides the
following functions:
· Determines the actual width and location of the media
after it has been loaded.
· Tracks media drift during printing.
The capstan is a large roller that is coated in precision
ground rubber. A high resolution encoder is mounted at
one end. A brake is installed at the opposite end to stop
media drift while imaging.
Note:
The capstan must always be clean and smooth.
Always clean any kind of debris that might collect
on it, especially UV inks (See Maintenance sec-
tion for cleaning instructions).
The top surface of the platen is populated with vacuum
holes. The underside is relatively closed in order to
maintain a negative pressure inside the platen. A series of
fans on the bottom of the platen create the negative
pressure that helps to hold the media in place while an
image is printed.
Maintains alignment of the media on the take-up shaft.
It is spring-loaded to prevent drift or skewing of the me-
dia. The gimbal is located between the platen and the
take-up shaft.