IBM 1800409-001A - Manual (Page 268)

To remove a card, use the following procedure:
1. If you are removing an LN03 Plus or a ProCollection card,
turn off the printer. Otherwise, press the Online/Offline key
to take the printer off line (the LED should be off).
2. Pull the card out gently.
3. Depending on the type of card you are removing, either turn
the printer on again or put it back on line.
NOTE: If you are using an application, make sure the printer
driver installed supports the fonts on the card, if you want
to use those fonts. If not, contact your application
manufacturer for support.
Chapter 8
8 - 1 2 P r i n t e r O p t i o n s