Lexmark CX310dn - ADF Cover Open Service Check

Actions Yes No
Step 3
Check JFBM1 on the controller for proper connection.
Is it connected properly?
Go to step 4. Properly connect the
cable.
Step 4
Check pin 1 in JFBM1 for voltage. The voltage is only present when a
flatbed copy job is running. The voltage should measure +24V AC.
Is voltage present?
Go to step 5. Replace the controller
board. See “Controller
board removal” on
page 239.
Step 5
Ensure that the home position cable (JHS1) is connected.
Is the cable connected?
Go to step 6. Properly connect the
cable.
Step 6
Check pin 1 in JHS1 for voltage. The voltage should measure +5V DC. Pin
2 should be GND.
Is voltage present and is it correct?
Replace the flatbed.
See “Flatbed scanner
assembly removal” on
page 252.
Replace the controller
board. See “Controller
board removal” on
page 239.
ADF cover open service check
Actions Yes No
Step 1
Is the ADF cover properly closed?
Go to step 3. Go to step 2.
Step 2
Close the ADF cover.
Does the problem go away?
Issue resolved. Go to step 3.
Step 3
Perform the ADF cover open sensor test. See “Scanner tests” on
page 183.
Does the sensor work properly?
Go to step 4 Go to step 8.
Step 4
On the bottom of the ADF cover, inspect the ADF cover closed sensor
actuator.
Does it move freely?
Go to step 6. Go to step 5.
Step 5
Fix the actuator so it moves freely.
Does this fix the problem?
Issue resolved. Go to step 6.
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Diagnostic information
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