Understanding the control panel lights

Invalid engine code

Light sequence:

Ready—On

Load Paper—On

Error—On

What this light sequence means:

The engine code has not been programmed, or the programmed code is not valid.

What you can do:

Download valid engine code to the internal print server.

Invalid network code

Light sequence:

Ready—On

Load Paper—Blinking

Error—On

What this light sequence means:

The code in an internal print server has not been programmed, or the programmed code is not valid.

What you can do:

Download valid network code to the internal print server.

Toner cartridge region mismatch

Light sequence:

Toner Low/Replace PC Kit—On

Load Paper—Blinking

Error—On

What this light sequence means:

The geographic region of the printer does not match the geographic region of the installed toner cartridge.

What you can do:

Remove the toner cartridge, and install a new toner cartridge that matches the region of the printer (see What supplies do I need

and how do I order them? on page 76).

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Lexmark 250dn manual Understanding the control panel lights Invalid engine code, Invalid network code