Lexmark C520 Service Manual - Page 90

5022-xxx The paper you choose to print the page on should be either Letter or A4. To run the Quick Test (duplex): 1. Select Quick Test from DUPLEX TESTS. 2. Select Single or Continuous. • The single Duplex Quick test cannot be canceled. • The printer attempts to print the Quick Test Page from the default paper source. • Check the Quick Test Page for the correct offset between the placement of the first scan line on the front and back side of a duplexed sheet. The single test stops automatically when a single duplex sheet is printed, and the continuous test continues until you press Stop ( ). Print Test (duplex) This test provides service personnel with a way to verify the function of the printer's duplex hardware. After the user selects this test, the device automatically executes a continuous print test that generates a duplexed, color output page. To stop the test, the user must press Stop ( ). While this test executes, the power indicator light blinks green and the panel displays "DUPLEX TESTS Printing...". The paper you choose to print the page on should be either Letter or A4. To run the Print Test (duplex): 1. Select Print Test from DUPLEX TESTS. The printer executes a continuous print test that generates a duplexed, color output page. 2. To stop the test, press Stop ( ). Diagnostic aids 3-13