11 Setups 
Xerox Phaser 3635 User Guide 195
Application Checksum Verification
The User Interface Application Checksum Verification checks that the UI software 
is up-to-date and running correctly.
Select Start Test to begin the test.  A message will be displayed indicating that the 
test in progress.  A second message will then be displayed indicating whether or not 
the test was completed successfully.