Lexmark T652 Service Manual page 243

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A positive value moves the left margin to the right and widens the left margin. A negative value
moves the left margin to the left and narrows the left margin.
4
Touch Submit, and then print a quick test page to verify the adjustment.
Sensor Test
This test determines whether the duplex sensors and switches are working properly.
1
From the Diagnostics menu, navigate to DUPLEX TESTS > Sensor Test.
Sensor Test Testing appears on the display.
2
Manually actuate the duplex input and exit sensors. The input sensor is in the back part of the duplex unit,
while the exit sensor is in the return paper path.
Note: CL or OP appears on the display to indicate whether the sensor or switch is closed (CL) or open
(OP).
3
Press the Stop button to exit the test.
Motor Test
This test determines whether the power and velocity values of the duplex option paper feed drive system are
acceptable. The duplex runs the DC motor at high and low speed, taking an average of the power (PWM)
required for each speed and calculating the KE value.
1
From the Diagnostics menu, navigate to DUPLEX TESTS > Motor Test.
The power indicator light blinks and Motor Test Testing appears on the display.
2
When the motor stops, see the message that appears on the display to check whether the motor passed
or failed the test.
3
Press the Stop button to exit the test.
Duplex Feed 1
This test feeds a blank sheet of paper to the duplex paper stop position 1. This can be run using any of the
supported paper sizes.
1
From the Diagnostics menu, navigate to DUPLEX TESTS > Duplex Feed 1.
The power indicator blinks while the paper is feeding and Duplex Feed 1 Feeding... appears on the
display.
Note: Do not cancel this test.
When Duplex Feed 1 Clear Paper appears on the display, then remove the media from the duplex
2
unit.
3
From the control panel, press the Stop button to clear the message.
Service menus
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