290 Troubleshooting
Problems Using Options
To confirm your options are installed correctly, print a status 
sheet. See “Printing a Status Sheet” on page 276 for details.
The message Invalid AUX /IF Card appears on 
the LCD panel
Paper does not feed from the optional paper 
cassette
Cause What to do
The printer cannot read the 
installed optional interface 
card.
Turn off the computer, then remove the 
card. Make sure the interface card is of a 
supported model.
Cause What to do
The optional paper cassette 
may not be installed properly.
See “Optional Paper Cassette Unit” on 
page 191 for instructions on installing an 
optional paper cassette unit.
The paper source setting may 
not be correct.
Make sure you have selected the proper 
paper source in your application.
There may be no paper in the 
paper cassette.
Load paper into the selected paper 
source.