Rockwell Automation 2755 AdaptaScan Bar Code Readers - Manual (Page 71)

Troubleshooting and Maintenance 6–6
The scan window fits into an opening behind the front of the Reader.
A bezel and gasket create a NEMA Type 4 seal.
The table below lists numbers for ordering a glass or plastic window
kit. Do not substitute other material for a damaged window. The
windows have an optical coating necessary to Reader performance.
Window Kits Description
2755-NW45
Replacement Glass Window Kit
Includes bezel/window assembly with anti-reflective, optical
glass window.
2755-NW44
Replacement Plastic Window Kit
Includes bezel/window assembly with hard coated, anti-reflec-
tive, optical quality, plastic window.
Figure 6.2
Scan Window Removal/Replacement
#6-32
Bezel Screws (6) Bezel/Window Assembly
!
ATTENTION: When servicing the Reader, do not
touch components inside window. Do not touch the
internal mirrors! Fingerprints diffuse the laser beam.
The internal mirrors cannot be serviced in the field.
To remove the scan window:
1. Shut off power to the Reader.
!
ATTENTION: Disconnect power to the Reader
before attempting to replace the scan window to
avoid potential eye damage from the laser beam.
2. Clean area around window bezel.
Replacing Scan Window