Procedure:
(Warning: This will void your warranty)
1) Take the knob off.
2) remove the top cover.
3) There is an interface board for your (I assume HPIB) interface.
Remove the board.
4) Reassemble the printer.
The interface board uses the Centronics interface to communicate with
the printer. With the interface board removed, the bus contention is
removed.
Eric Ross
ihnp4!hpfcla!hpvcla!ericr