3-10 Service Manual
4062-XXX
The single test stops automatically when a single duplex sheet is printed, and the continuous test continues
until you press Stop .
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 3-5.
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 the whether the top margin of the backside aligns with the top margin of
the frontside.
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 -25 to +25, and the default value is 2.
• 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.
Sensor Test (duplex)
This test is used to determine whether or not the duplex sensors and switches are working correctly. The test
allows you to actuate the duplex input sensor located in the back part of the duplex unit and the duplex exit
sensor located in the return paper path.
1. Select Sensor Test from DUPLEX TESTS.
The message Sensor Test Testing displays.
2. Manually actuate each of the duplex sensors. When the sensor/switch is closed, CL (closed) displays, and
when the sensor/switch is open, OP (open) displays.
• Duplex input sensor
• Duplex exit sensor
3. Press Back or Stop to exit the test.
Motor Test (duplex)
This test lets you test the duplex option paper feed drive system, and verify that the power and velocity values
are acceptable. The duplex runs the DC motor at high speed and low speed, taking an average of the power
(PWM) required for each speed and calculating the KE value.
To run the Motor Test (duplex):
1. Select Motor Test from DUPLEX TESTS.
The power indicator light blinks, and the message Motor Test Testing displays.
2. When the motor stops, and has passed the test, the following results are displayed.
Motor Test
Test Passed
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