M126/M127/M128 5-32 SM
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 (Printer)” in “System
Maintenance”.
To set the Top Margin (duplex):
1. Print the Quick Test (duplex):
a. Touch
to 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 front side.
2. Select "Top Margin" from DUPLEX TESTS.
3. Use the arrows to increase or decrease the current setting displayed on the touchscreen to
select the margin setting:
[setting's current value] .
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 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. Touch "Submit".
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 "Stop"
to exit the test.
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