Motor Tests - Lexmark C734dn Service Manual

Motor tests

The motor tests are run primarily to locate noises in the printer.
General motor tests procedures
In some instances, when you enter a particular test, you will be given the choice to run the motor in forward or
reverse. Other times, there will only be the option to run the motor in forward direction.
In general, the test should work as follows:
Select MOTOR TESTS from DIAGNOSTICS, and press Select (
1.
Select the motor that you need to test, and press Select (
2.
Check the table below for setup requirements, if any.
3.
Select the direction if a choice is offered (Forward or Reverse) or other setting for that test, and press
4.
).
Select (
Press Back ( ) or Stop (
The following tests have special setup before running the test:
Motor test
Align Motor Test
Fuser
Cart 1
Cart 2
Cart 3
Transfer Belt
Option Motors—
Tray 1 Pickup
MPF
) to stop the motor and end the test.
Setup requirements
Top cover Lower door
position position
N/A Closed*
Closed Closed*
N/A Open
N/A Open
N/A Open
Closed Closed
N/A N/A
N/A Closed*
).
).
Values in
menu
Forward, * If this test is run with the lower door
Reverse open:
• Remove the right cover (see
Forward,
Reverse
"Right cover removal" on
page 4-37),
• Manually activate the 5 V interlock
switch and the 24 V interlock
switch must be pushed in.
Forward Remove the right cover to observe the
motor moving. See
Forward
removal" on page 4-37
Forward
Press
Select ( )
Single, Remove all paper from the input source
Continuous tray to avoid paper jams while
performing this test.
Reverse Remove any paper in the multifunction
feeder in order to run this test.
* If this test is run with the lower door
open:
• Remove the right cover (see
"Right cover removal" on
page 4-37),
• Manually activate the 5 V interlock
switch and the 24 V interlock
switch must be pushed in.
5026
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Notes
"Right cover
Diagnostic aids
3-9
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