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 218.
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 282.
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 372.
Replace the
controller board. See
“Controller board
removal” on
page 282.
ADF rattling noise service check
Actions Yes No
Step 1
Is the ADF separator roller properly installed?
If the error persists,
then go to step 2.
Replace the ADF
separator roll. Go to
“ADF separator roll
removal ” on
page 359.
Step 2
Is the ADF top cover assembly properly installed?
If the error persists,
then contact the next
level of support.
Replace the ADF top
cover assembly. Go
to
“ADF top cover
assembly removal”
on page 367.
7016
Diagnostic information
166
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