Action Yes No
Step 4
Replace the current system card assembly with the original system
card assembly. Go to
“System card assembly removal” on
page 283.
Does the problem remain?
Go to step 6. The problem is
solved.
Step 5
Replace the original operator panel assembly with a new and not
previously installed operator panel assembly.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Step 6
Replace the original operator panel assembly with a new and not
previously installed operator panel door assembly or the operator
panel assembly. Go to
“T650, T652, and T654 operator panel
door assembly removal” on page 305 or “T656 operator panel
door assembly removal” on page 310.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
NVRAM chip failure on operator panel door assembly service check
Action Yes No
Step 1
Replace the operator panel door assembly. Go to
“T650, T652,
and T654 operator panel door assembly removal” on page
305.
Does the problem remain?
Go to step 2. Problem is solved.
Step 2
Replace the fuser unit assembly. Go to
“Fuser unit assembly
removal” on page 331.
Does the problem remain?
Contact next level of
support.
Problem is solved.
4062
Diagnostic information
229
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