Error code Description Action
979.xx Flash parts failed while programming the
Standard Network or Network Card x port.
Check the following:
• If installed, then check the network card for
correct installation.
• If correctly installed, then replace the
network card.
• If a network card is not installed, then
replace the controller board.
Go to
“Controller board removal” on
page 291.
982 errors
982 error messages
Error code Description Action
982.xx Communications error detected by the
specified device.
Note: <device> can be one of the following:
• Tray 2
• Tray 3
Call the next level of support.
990 errors
990 error messages
Error code Description Action
990.xx This error message indicates that an equipment
check condition has occurred in the specified
device.
Go to the service check for the device indicated.
Note: <device> can be one of the following:
• Tray 2
• Tray 3
Go to
“Trays 2 and 3 (optional) service
check” on page 112.
Trays 2 and 3 (optional) service check
Actions Yes No
Step 1
Are two option trays being used?
Go to step 2. Go to step 4.
Step 2
If two option trays are being used, then is the 550‑sheet tray on the
bottom?
Go to step 4. Go to step 3.
5027
Diagnostic information
112