6300 Series Maintenance Manual322.3.3.3.7 KeypadThis test verifies that the logic board can receive a signal from each key on the control panel. Onceyou have entered the Keypad Test, depressing each key should make its label appear on theControl Panel Display (i.e., MODE, VIEW, LF, etc.). Exit the Keypad Test by depressing theCLEAR key three times.2.3.3.4 MotorsThis parameter provides a means for testing individual motor circuits by turning them on or off.Accessing the Motor Tests:Step 1. Take the printer offline and place it in Tech Access Mode.Step 2. With the printer display reading OFFLINE, depress the MENU Key and use the▲/▼keys to scroll to TEST.Step 3. Press ENTER and scroll (▲Key) to Diag.Step 4. Press ENTER and scroll (▲Key) to Motor.Step 5. Press ENTER and scroll (▲Key) to either Ribbon or Shuttle. Each Motor Test isinitiated by depressing the ENTER key when the desired selection is displayed.Motor selections:RibbonShuttleRibbon PumpBlowerPrint GapCAUTION: Remove the ribbon before performing the Ribbon Pump test!The selected test is initiated by depressing the ENTER Key. After the motor reaches its assignedspeed the test can be stopped by depressing the ENTER Key again. This sequence may berepeated until you are satisfied with the operation of the motor. (The Paper Feed Motor may betested using the LF (line feed) or FF (form feed) functions.).