Lexmark X850E - Page 151

Diagnostic information 2-53
7500-XXX
5 Check the drive power transmission.
Do the exit 2 media exit roll assembly and the other
gears rotate smoothly?
Go to step 6. Replace damaged
components.
Go to “Exit 2 unit
assembly removal”
on page 4-315.
6 Check the exit 2 drive motor for proper operation.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Printer Motor Test.
4. Touch Exit2 drive mtr.
5. Touch Forward or reverse.
Does the above motor rotate normally?
Go to step 8. Go to step 7.
7 Check the exit 2 drive motor for proper connection.
Is the above motor connected properly?
Replace the exit 2
unit assembly.
Go to “Exit 2 unit
assembly removal”
on page 4-315.
Replace the
connection.
8 Check the connection between the exit interface card
assembly and the printer engine card assembly.
Are connectors P431 and P421 connected properly?
Go to step 9. Replace the
connection.
9 Check the sensor (duplex wait) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch DUPLEX TESTS.
3. Touch Sensor Test.
4. Touch Duplex wait.
Open the duplex left door assembly.
Does the display on the operator panel change every
time the sensing area of the above sensor is blocked by
the duplex wait actuator?
Go to step 11. Go to step 10.
10 Check the sensor (duplex wait) for proper connection.
Is the above sensor connected properly?
Replace the sensor
(duplex wait).
Go to “Duplex
sensor (duplex
wait) removal” on
page 4-307.
Replace the
connection.
11 Perform a 2 sided print test.
Does the error still occur?
Replace the duplex
controller card
assembly.
Go to “Duplex
controller card
assembly removal”
on page 4-304.
Go to step 12.
Problem solved.
12 Perform a 2 sided print test.
Does the error still occur?
Replace the printer
engine card
assembly.
Go to “Printer
engine card
assembly removal”
on page 4-117.
Problem solved.
Step Check Yes No