Lexmark C522 Service Manual - Page 91

5022-xxx Top Margin (duplex) This setting controls the offset between the first scan line on the front of the duplex page and the first scan line on the back of the page. Therefore, be sure to set the top margin in REGISTRATION before setting the duplex top margin. See "Registration" on page 3-4. To set the Top Margin (duplex): 1. Print the Quick Test (duplex): a. Select Quick Test from DUPLEX TESTS. b. Select Single. c. Hold the page to the light to see whether the top margin of the back aligns with the top margin of the front. 2. Select Top Margin from DUPLEX TESTS. 3. Use or to select the margin setting you need to change. • Each increment shifts the duplex top margin by 1/100 of an inch. • The Top Margin (duplex) range is -20 to +20, and the default value is 0. • An increase moves the top margin down and widens the top margin. A decrease moves the top margin upward and narrows the top margin. 4. Press . 5. Print the Quick Test (duplex) again to verify the adjustment. Repeat if necessary. Motor Test (duplex) This test is used to determine whether or not the duplex unit paper feed drive system is working correctly. 1. Select Motor Test from DUPLEX TESTS. The duplex motor runs continuously until stopped. The message Motor Running displays. 2. To stop the test, press Back ( ) or Stop ( ). Input Tray Tests If tray 2 is installed, the INPUT TRAY TESTS menu appears. This test is used to determine if the Tray 2 full sensor is sensing properly. To run the Input tray test: 1. Select INPUT TRAY TESTS from the Diagnostics mode. 2. Select Sensor Test. 3. Select Tray 2. Tray2 full displays. 4. Toggle the sensor to change the display and determine whether the sensor is operating properly. Press Back ( ) or Stop ( ) to exit the test. 3-14 Service Manual