Lexmark X850e Service Manual page 224

7500-XXX
Step Check
5 Is the sensor (stacker bin level 2) connected properly?
6 Check the encoder of the sensor (stacker bin level
encoder) installation.
Is the encoder installed properly?
Does it enter the detection point of the sensor (stacker
bin level encoder)?
7 Check the sensor (stacker bin level encoder) for proper
operation.
Perform the sensor (stacker bin level encoder) test.
Remove the rear upper cover. Go to
cover removal" on page
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Bin Level.
5. Touch Stacker bin level encod.
Does the operator panel display change when the belt
of the stacker bin lift motor assembly is moved by
hand?
8 Is the sensor (stacker bin level encoder) connected
properly?
9 Check the stacker bin lift motor assembly for proper
operation.
Check the above motor by blocking the lower hole in
either of the sensors (stacker bin level). The stacker
bin should lower slightly.
Does the stacker bin lift motor assembly operate
properly?
10 Is the stacker bin lift motor assembly connected
properly?
2-156
Options Service Manual
"Rear upper
4-101.
Yes No
Replace the Replace the
sensor (stacker connection.
bin level 2).
Go to "Sensor
(stacker bin
level 2)
removal" on
page 4-111.
Go to step 7. Replace the
encoder.
Go to step 9. Go to step 8.
Replace the Replace the
sensor (stacker connection.
bin level
encoder).
Go to "Sensor
(stacker bin
level encoder)
removal" on
page 4-112.
Go to step 11. Go to step 10.
Replace the Replace the
stacker bin lift connection.
motor assembly.
"Stacker
Go to
bin lift motor
assembly
removal" on
page 4-115.