Action Yes No
Step 30
a Replace the faulty ISP option.
b POR the printer.
Does the error remain?
Go to step 31. Go to step 26.
Step 31
Contact your next level of support. You will need the following information:
• Exact 900.xx error digits and complete error message
• Printed menu settings page
• Printed network settings page
• Device error log
• A sample print file if the error appears to be isolated to a single file
• File/Application used if the error is related to specific print file
• Device operating system
• Driver used (PCL/PS)
• Frequency of the occurrence of the error
NVRAM mismatch failure service check
Warning—Potential Damage: When replacing any of the following components:
• Control panel assembly
• Controller board assembly
Replace only one component at a time. Replace the required component and perform a POR before replacing a second
component listed above. If this procedure is not followed, the printer will be rendered inoperable. Never replace two
or more of the components listed above without a POR after installing each one or the printer will be rendered
inoperable.
Warning—Potential Damage: These components can be used as a method of troubleshooting as long as the
machine is booted into diagnostic mode or is operating in diagnostic mode. Once a component has been installed in
a machine and powered up into user mode, it cannot be used in another machine. It must be returned to the
manufacturer.
Action Yes No
Step 1
Check the control panel assembly.
Was the control panel assembly recently replaced?
Go to step 3. Go to step 2.
Step 2
Check the controller board assembly.
Was the controller board assembly recently replaced?
Go to step 4. Contact next level of
support.
4063
Diagnostic information
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