Action Yes No
Step 29
a Upgrade the firmware if it was not upgraded in a previous step.
Note: Contact your next level of support for the correct
firmware
level to use.
b Reset the printer.
c Send a print job.
Does the problem remain?
Go to step 30. Go to step 26.
Step 30
a Replace the faulty optional ISP.
b Reset the printer.
Does the problem remain?
Go to step 31. Go to step 26.
Step 31
Contact your next level of support.
Provide 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
Engine error service check
Action Yes No
Step 1
a Unplug the power cord from the printer.
b Wait for 20 seconds, and then turn on the printer.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
Make sure that the printer is using the latest firmware version, and
update if necessary.
Does the problem remain?
Go to step 3. The problem is
solved.
3400-48x
Diagnostics and troubleshooting
165