Intermec 6820 Series Installation Instructions Manual page 10

Removing the Holder: Disconnect the ground cable under the
holder to remove the holder from the printer. Older CK61 holders
may have two ground cables (shown above).
To remove the existing holder from a fixed printer
1 Remove the four screws that secure the access cover and
2 Disconnect the ribbon cable from the extender cable in the
10 6820 Series 80-Column Printer Terminal Holder Installation Instructions
remove the cover from the printer. Be careful not to lose the
standoff under each screw.
printer.