Xerox 2135DT Service Guide - Page 76
Switch scan test
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Switch scan test Use this test to check the operation of the printer's switches and sensors. 1. Enter the diagnosis mode by pressing and holding the Menu (1) and Enter (4) keys as you turn on the printer. 2. Press the Menu (1, 5) keys to scroll through the list of test until SWITCH SCAN appears on the upper display. 3. Press the Item (2,6) keys to scroll through the list of sensor tests, called SWITCH SCAN tests. The table below list the SCAN test items and which sensors and switches and test by that menu item. 4. Pressing the Value (3) key activates the currently displayed switch scan test. The SWITCH SCAN number begins to blink, and the corresponding logic state (High or Low) of the particular switches or sensors scanned by the test (listed as 1=, 2=, 3=, and 4=) are displayed. 5. With a test active, you can manually actuate the sensors being scanned and look for a change at the control panel. 6. Press Value (7) to stop the current test. 7. Repeat steps 2 through 5 as required. 8. To exit the switch scan test mode, press Enter (4). Service Guide 63