Invalid Engine Code

What this message means:

The printer engine code has not been programmed or is not valid.

What you can do:

Call for service.

See also:

Calling for service

Invalid

Invalid

Standard

Network <x> Code

Network

Code

What this message means:

The code in an internal print server is not valid. The printer cannot receive and process jobs until valid code is programmed into the internal print server.

What you can do:

Download valid code to the printer internal print server.

Note: You can download network code while this message is displayed.

ITU/Fuser Maint

What this message means:

The counters that track wear on the image transfer unit and fuser have reached their limit.

What you can do:

Replace the image transfer unit and fuser.

See also:

Replacing the fuser; Replace the image transfer unit and transfer roller

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IBM 1220 manual Invalid Engine Code, Network x Code, ITU/Fuser Maint