Duplex Sensor Test; Duplex Motor Test - Lexmark OPTRA 4069-XXX User Manual

4069-XXX
1/100 inch. A positive offset moves the text down the page and
widens the top margin while a negative offset moves the text up the
page and narrows the top margin.
3. Press Return/Stop to exit the test.
Check the Top Margin Offset of the base printer.

Duplex Sensor Test

This test is used to determine whether or not the Duplex sensors
and switches are working correctly.
Select Sensor Test from the Duplex Tests menu.
Manually actuate each of the duplex sensors. When the sensor/
switch is closed, CL (closed) displays, when the sensor/switch is
open, OP (Open) displays.
Duplex input sensor
Duplex exit sensor
Press Return/Stop to exit the test.

Duplex Motor Test

This test lets you test the duplex unit's paper feed drive system, and
verify that the power and velocity values are acceptable.
To run the Duplex Motor Test:
1. Select Motor Test from the Duplex Tests menu. The duplex
motor test continues to run until the printer is powered off.
– The power indicator blinks while the test is running.
– The duplexer runs the motor at a high speed and then a low
speed and takes an average of the power required for each
speed.
– After all the information is computed, the motor turns off.
Diagnostic Aids
3-5