Repair Analysis Procedures
Phaser® 3500 Laser Printer Service Manual
2-5
Service Diagnostics Menu Map 
Service Diagnostic Control Panel Button Descriptions
Button Function
BACK Returns to the prior higher level menu structure, if available. 
Stops the actively running test.
CANCEL Terminates the current test. 
MENU Cycles through all of the top level menu items.
UP Scrolls up one menu item within a menu list. This control does not ‘wrap’.
Used to increment values in tests requiring user input.
DOWN Scrolls up one menu item within a menu list. This control does not ‘wrap’.
Used to increment values in tests requiring user input.
OK Enters the highlighted menu. Executes the current test item. 
Used to select the value entered by the user.
Main Menu  Sub Menu Description/Function Control Panel Display
Optins 
Interface
Tray  3  
Interface
Tests the interface between 
the main controller and the 
Tray 3 interface board.
Tray 3 Interface:
Pass /Fail :x.x.x
Duplex 
Interface
Tests the interface between 
the main controller and the 
duplex interface board.
Duplex Interface
Pass/Fail :x.x.x
Test 
Pattern
Simplex Prints the test print page in 
simplex mode. The Control 
Panel will display the papers 
location during the print 
process.
This process will print 
continuosly until stopped by 
the user.
Simplex Print 
Start -> Feed On -> Exit On
Duplex Prints the test print page in 
2-sided or duplex mode.
This process will print 
continuosly until stopped by 
the user.
Duplex Print 
Start -> Feed On -> Exit On -> Duplex 
On
Motor/Fan Main Motor Main drive motor runs when 
the OK button is pressed 
and stops when the Cancel 
button is pressed.
Main Motor
Running Test
ON/OFF