Lexmark MX310 - Flatbed Home Position Service Check

Actions Yes No
Step 3
Replace the controller board. See
“Controller board removal” on
page 299.
Did this solve the problem?
The problem is
solved.
Contact the next
level of support.
Flatbed home position service check
Actions Yes No
Step 1
POR the MFP.
Does the CCD move and return to the home position?
The problem is
solved.
Go to step 2.
Step 2
Perform the home position sensor test. See
“Scanner tests” on
page 235.
Is the sensor working properly?
Go to step 3. Go to step 5.
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 299.
Step 5
Ensure that the home position cable JHOME1 is connected.
Is the cable connected?
Go to step 6. Properly connect the
cable.
Step 6
Check pin 1 in JHOME1 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
assembly removal”
on page 398.
Replace the
controller board. See
“Controller board
removal” on
page 299.
7015
Diagnostics and troubleshooting
185